Superscope Pac750 User manual

Professional

CD/Cassette/Mixer/

System

PAC750

Owners Manual

LEVEL

TEMPO

KEY

EJECT

REC

AUTO DUBB

DOWN

STOP

SINGLE

PITCH

OPEN/CLOSE

AUTO LEVEL

OFF

PLAY PLAY

REC

BALANCE

PLAY/PAUSE

MIC/LINE

321

AUX

VOLUME

BALANCE

PLAY

HIGH

LOW

MID

STOP

RESET

A-B

TIME

DOLBY NR

TAPE

REPEAT

OFF B C

PAC770

PROGRAM

MEMO

DOLBY B-C NR HX PRO

STEREO

PRESET

REM

TOTAL

TRACK

REPEAT1

PROGRAM

AUTO

kHz

MEMO

A-B

MEMO

DUBB

DOLBY

MHz

PRO

H-SP

19181716151413121110

987654321

-3-6

-10-15-20

HP LEVEL

HEADPHONE

HP SELECT

POWER

SYSTEM

AUXCD TAPE

MIC/LINE

TAPE

DUCKING

REDUCTION

GAIN

∞

-15

CD+TAPE+AUX

OFF

AUTO

VOICE

MIC/LINE

AUTO

AUTOMATIC TAPE SELECT SYSTEM

QUICK REVERSE

Professional

CD/Cassette/Mixer/

Amplifier System

PAC770

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK)

NO USER-SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

The lightning flash with arrowhead symbol, within

an equilateral triangle, is intended to alert the user

to the presence of uninsulated “dangerous voltage”

within the product’s enclosure that may be of suffi-

cient magnitude to constitute a risk of electric shock

to persons.

The exclamation point within an equilateral triangle

is intended to alert the user to the presence of

important operating and maintenance (servicing)

instructions in the literature accompanying the

appliance.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

This Class B digital apparatus meets all

requirements of the Canadian Interference-

Causing Equipment Regulations.

Cet appareil numérique de la Classe B respecte

toutes les exigences du Règlement sur le matérier

brouilleur du Canada.

NOTE:

This equipment has been tested and found to comply

with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interfer-

ence in a residential installation. This equipment gener-

ates, uses and can radiate radio frequency energy and,

if not installed and used in accordance with the instruc-

tions, may cause harmful interference to radio communi-

cations. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment

does cause harmful interference to radio or television

reception, which can be determined by turning the equip-

ment off and on, the user is encouraged to try to correct

the interference by one or more of the following mea-

sures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and

receiver.

– Connect the equipment into an outlet on a circuit

different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV techni-

cian for help.

NOTE:Changes or modifications may cause this unit

to fail to comply with Part 15 of the FCC Rules and may

void the user's authority to operate the equipment.

SAFETY

INSTRUCTIONS

READ BEFORE OPERATING EQUIPMENT

This product was designed and manufactured to meet strict

quality and safety standards. There are, however, some instal-

lation and operation precautions which you should be particu-

larly aware of.

1. Read Instructions — All the safety and operating instruc-

tions should be read before the appliance is operated.

2. Retain Instructions — The safety and operating instruc-

tions should be retained for future reference.

3. Heed Warnings — All warnings on the appliance and in

the operating instructions should be adhered to.

4. Follow Instructions — All operating and use instructions

should be followed.

5. Water and Moisture — The appliance should not be used

near water — for example, near a bathtub, wash-bowl,

kitchen sink, laundry tub, in a wet basement, or near a

swimming pool, etc.

6. Carts and Stands — The appliance should be used only

with a cart or stand that is recommended by the manufac-

turer.

7. An appliance and cart combination should be moved with

care. Quick stops, excessive force, and uneven surfaces

may cause the appliance and cart combination to over-

turn.

8. Wall or Ceiling Mounting — The appliance should be

mounted to a wall or ceiling only as recommended by the

manufacturer.

9. Ventilation — The appliance should be situated so that its

location or position does not interfere with its proper venti-

lation. For example, the appliance should not be situated

on a bed, sofa, rug, or similar surface that may block the

ventilation openings; or, placed in a built-in installation,

such as a bookcase or cabinet that may impede the flow

of air through the ventilation openings.

10. Heat — The appliance should be situated away from heat

sources such as radiators, heat registers, stoves, or other

appliances (including amplifiers) that produce heat.

11. Power Sources — The appliance should be connected to

a power supply only of the type described in the operating

instructions or as marked on the appliance.

12. Grounding or Polarization — The precautions that should

be taken so that the grounding or polarization means of an

appliance is not defeated.

13. Power-Cord Protection — Power-supply cords should be

routed so that they are not likely to be walked on or pinched

by items placed upon or against them, paying particular at-

tention to cords at plugs, convenience receptacles, and the

point where they exit from the appliance.

14. Cleaning — The appliance should be cleaned only as rec-

ommended by the manufacturer.

15. Nonuse Periods — The power cord of the appliance should

be unplugged from the outlet when left unused for a long

period of time.

16. Object and Liquid Entry — Care should be taken so that

objects do not fall and liquids are not spilled into the enclo-

sure through openings.

17. Damage Requiring Service — The appliance should be

serviced by qualified service personnel when:

A. The power-supply cord or the plug has been damaged;

B. Objects have fallen, or liquid has spilled into the appli-

ance; or

C. The appliance has been exposed to rain; or

D. The appliance does not appear to operate normally or

exhibits a marked change in performance; or

E. The appliance has been dropped, or the enclosure

damaged.

18. Servicing — The user should not attempt to service the

appliance beyond that described in the operating instruc-

tions. All other servicing should be referred to qualified ser-

vice personnel.

LASER SAFETY

This unit employs a laser. Only a qualified service

person should remove the cover or attempt to service

this device, due to possible eye injury.

CAUTION :

USE OF CONTROLS OR ADJUSTMENTS

OR PERFORMANCE OF PROCEDURE

OTHER THAN THOSE SPECIFIED HEREIN

MAY RESULT IN HAZARDOUS RADIATION

EXPOSURE.

ENGLISH

TABLE OF CONTENTS

FRONT AND REAR PANEL DRAWINGS ....................................................................... 5

SPECIFICATIONS ........................................................................................................... 6

INTRODUCTION ............................................................................................................. 8

PRECAUTIONS............................................................................................................... 8

FEATURES...................................................................................................................... 8

REAR PANEL CONNECTIONS ...................................................................................... 9

FRONT PANEL FEATURES ......................................................................................... 10

OPERATION.................................................................................................................. 13

MIXER OPERATION ..................................................................................................... 13

The Mixer In Relation To The Tape Deck ............................................................. 13

CASSETTE DECK OPERATION................................................................................... 13

Cassette Tape Playback ....................................................................................... 13

Searching For Tracks ............................................................................................ 13

Rewind & Fast Forward......................................................................................... 13

Cassette Tape Record .......................................................................................... 13

Erasure Of Tape.................................................................................................... 13

To Protect Valuable Recordings ........................................................................... 13

Auto Tape Selector ............................................................................................... 13

CD PLAYER OPERATION ............................................................................................ 14

CD Playback ......................................................................................................... 14

Selecting The Playback Track............................................................................... 14

A-B Repeat............................................................................................................ 14

Programming Playback Tracks ............................................................................. 14

Tempo Control ...................................................................................................... 14

Key Control ........................................................................................................... 15

CD-RW/CD-R Playback ........................................................................................ 15

CD TO TAPE DUBBING ................................................................................................ 15

Manual Record Level Dubbing .............................................................................. 15

Automatic Record Level Dubbing.......................................................................... 15

TROUBLESHOOTING................................................................................................... 16

REPAIRS ....................................................................................................................... 16

CLEANING OF EXTERIOR SURFACES ...................................................................... 16

COMPACT DISC CARE ................................................................................................ 17

CASSETTE TAPE CARE .............................................................................................. 17

BASIC HOOKUP ........................................................................................................... 51

PAC750 ................................................................................................................. 51

PAC770 ................................................................................................................. 52

PUSHPUSH

NEUTRIK NEUTRIK NEUTRIK

PUSH

NEUTRIK

PUSH

ONOFF

FILTER

MPX

ONOFF

SENSITIVITIYSENSITIVITIY SENSITIVITIYSENSITIVITIY

48V 48V48V48V

OFF ON

PHANTOM PHANTOM

ONOFF

PHANTOM

OFF ON

ONOFF

AUX

OUT

REMOTE

INPUT 2 INPUT 1INPUT 3

OUT

PHANTOM

EFFECT

RLR

LINE

HIGH

LOW

MIC

LINE

MIC

LINE

MIC

LOW

HIGH

LINE

LOW

MIC

LOW

HIGHHIGH

MIC/LINE

INPUT 4

EQ EQ

IN IN

HIGH

PAN

LOW

LLRL

PAN PANPAN

OUT

TAPE

OUT

NEUTRIK

OUT

BALANCED

OUT

UNBALANCED

SYSTEM

GND

ABCDE H

IML

COMMON

HOT COLD

HIGH

LOW

HIGH

LOW

HIGH

LOW

NEUTRIK

PUSHPUSHPUSHPUSH

NEUTRIK NEUTRIK NEUTRIKNEUTRIK

ONOFF

FILTER

MPX

BRIDGE

MONO

ONOFF

SENSITIVITIYSENSITIVITIY SENSITIVITIYSENSITIVITIY

48V 48V48V48V

(8ΩMIN)

(4ΩMIN)

TO SPEAKER

R AND L

CONNECT

MONO BRIDGE ON:

SPEAKER

OFF ON

PHANTOM

OFF

PHANTOM

OFF

PHANTOM

OFF ON

ONOFF

SPEAKER

(4ΩMIN)

SELECT

SPEAKER

AUX

OUT

REMOTE

OUT

INPUT 2 INPUT 1INPUT 3

OUT

PHANTOM

EFFECT

TAPE

PRE-AMP

RLR

LINE

HIGH

LOW

MIC

LINE

MIC

LINE

MIC

LOW

HIGH

LINE

LOW

MIC

LOW

HIGHHIGH

MIC/LINE

INPUT 4

EQ EQ

OUT OUT

IN IN

PAN

LLRL

PAN PANPAN

GND

COMMON

HOT COLD

HIGH

LOW

HIGH

LOW

HIGH

LOW

HIGH

LOW

AB CDEF G

KJIML

PAC750 REAR PANEL

PAC770 REAR PANEL

PAC750/PAC770 FRONT PANEL

LEVEL

HP LEVEL

HEADPHONE

HP SELECT

DUCKING

REDUCTION

TEMPO

KEY

EJECT

REC

AUTO DUBB

DOWN

GAIN

STOP

SINGLE

PITCH

OPEN/CLOSE

∞

-15

CD+TAPE+AUX

DOLBY B-C NR HX PRO

AUTO LEVEL

OFF

PLAY PLAY

REC

BALANCE

PLAY/PAUSE

TAPE

MIC/LINE

321

AUX

VOLUME

BALANCE

PLAY

HIGH

LOW

MID

STOP

RESET

A-B

OFF

TIME

DOLBY NR

AUTO

TAPE

VOICE

MIC/LINE

REPEAT

AUTO

OFF B C

PAC770

PROGRAM

POWER

MEMO

STEREO

PRESET

REM

TOTAL

TRACK

REPEAT1

PROGRAM

AUTO

kHz

MEMO

A-B

MEMO

DUBB

DOLBY

MHz

PRO

H-SP

19181716151413121110

987654321

-3-6

-10-15-20

SYSTEM

AUXTAPE

MIC/LINE

y!5

@2!9

qut

i@3!1o!0 @0 @4

nrmopr!6 !7

AUTOMATIC TAPE SELECT SYSTEM

QUICK REVERSE

SPECIFICATIONS

MIXER

Input sensitivity

MIC HIGH ................................................................................................................................................................................................ 4mV

MIC LOW ............................................................................................................................................................................................... 40mV

LINE ................................................................................................................................................................................................... 1000mV

PHANTOM output voltage .........................................................................................................................................................................DC 48V

Input

AUX in ...................................................................................................................................................................................... 1000mV/47kΩ

Pre-Out Output Level / Impedance (PAC770 Only) .................................................................................................................. 200mV / 1.5kohm

System (RCA) Output Level / Impedance (PAC750 Only) ...................................................................................................... 1000mV / 1.5kohm

System (XLR) Output Level / Imnpedance (PAC750 Only) ...................................................................................................... 1000mV / 150ohm

EQ - MASTER & MIC/LINE

Low Band Center .................................................................................................................................................................................. 100Hz

Mid Band Center .................................................................................................................................................................................... 1kHz

High Band Center ................................................................................................................................................................................. 15kHz

POWER AMPLIFIER (PAC770 Only))

Power output (RMS Continuous <0.08% THD)

Stereo 8ohm Load ....................................................................................................................................................................... 90W + 90W

Stereo 4ohm Load ................................................................................................................................................................... 110W + 110W

Mono 8ohm Load .................................................................................................................................................................................. 210W

Frequency response ............................................................................................................................................................ 5Hz-30kHz (+/- 3dB)

Rated input level ...................................................................................................................................................................................... 0.5Vrms

TAPE DECK

Track System ........................................................................................................................................................................... 4 Track, 2 Channel

Record/Erasure system ................................................................................................................................................................ AC105kHz Bias

Head System (Rotary type combination)

Rec/Play ............................................................................................................................................................................... Hard metal alloy

Erase ..................................................................................................................................................................................... Dual gap ferrite

Motor System

Capstan .............................................................................................................................................................................. DC Servo Control

Reel ........................................................................................................................................................................................................... DC

Wow and Flutter (JIS weighted) ................................................................................................................................................................<0.07%

Frequency Characteristics

Frequency responese (no Dolby NR)

type 1(Normal position) .................................................................................................................................................. 40Hz-15kHz±3dB

type 2(High position) ...................................................................................................................................................... 40Hz-16kHz±3dB

type 3(Metal position) ..................................................................................................................................................... 40Hz-16kHz±3dB

Overall S/N (no Dolby NR, IEC-A WTD)

type 1(Normal position) ...................................................................................................................................................................... 53dB

type 2(High position) .......................................................................................................................................................................... 54dB

type 3(Metal position) ......................................................................................................................................................................... 55dB

Dolby NR effect (B/C S/N improvement, CCIR-ARM WTD) .................................................................................................................. 9dB/18dB

Analog output

Output level .................................................................................................................................................................................. 500mV

Output impedance .............................................................................................................................................................................1kΩ

Channels ............................................................................................................................................................................................. 2 channels

Sampling frequency ................................................................................................................................................................................. 44.1kHz

Quantization .......................................................................................................................................................................... 16bit linear/channel

Error correction ............................................................................................................................... Cross-interleave read solomon code (CIRC)

D/A conversion ....................................................................................................................................................................... 1-bit linear/channel

Wow & flutter ........................................................................................................................................................................... Precision of quartz

Optical Readout System

Laser .......................................................................................................................................................................... GaAlAs semiconductor

Wavelength .......................................................................................................................................................................................... 780nm

Frequency Characteristics (Tempo control off)

Frequency response ...................................................................................................................................................... 20Hz-20kHz -1.5dB

Dynamic range ...................................................................................................................................................................................... 80dB

S/N ratio ................................................................................................................................................................................................. 70dB

Channel separation ............................................................................................................................................................................... 70dB

Distortion (THD 1kHz) ........................................................................................................................................................................... 0.05%

Analog output

Output level ....................................................................................................................................................................................... 2V RMS

Output impedance ................................................................................................................................................................................1.5kΩ

COMMON PART:

Power Consumption

PAC770 ................................................................................................................................................................................................. 500W

PAC750 ................................................................................................................................................................................................... 30W

Dimensions

Width ............................................................................................................................................................................... 19 inches (483mm)

Height (4U) ........................................................................................................................................................................ 7 inches (180mm)

Depth ............................................................................................................................................................................... 18 inches (455mm)

Net Weight ................................................................................................................................................................ PAC770 .. : 39.7 lbs (18kg)

PAC750 : 26.4 lbs (12kg)

These specifications represent design standards, Higher levels of performance can be expected under most conditions.

Subject to change without prior notice.

ENGLISH

INTRODUCTION

Thank you for selecting the Superscope PAC750/PAC770. Please read

these operating instructions carefully. We recommend that you read the

entire user guide prior to connecting and operating the unit. It is also

recommended that all connections be made prior to operating the unit.

Please refer to this manual to identify controls and connections for

operation of the unit.

PRECAUTIONS

The following precautions should be considered when operating the

equipment.

When setting the equipment ensure that :

– air is allowed to circulate freely around the equipment

– the equipment is on a vibration free surface

– the equipment will not be exposed to interference from an external

source

– the equipment will not be exposed to excessive heat, cold, moisture

or dust

– the equipment will not be exposed to direct sunlight

– the equipment will not be exposed to electrostatic discharges

¡In addition, never place heavy objects on the equipment.

¡If a foreign body or water does enter the equipment, contact your

nearest dealer or service center.

¡Do not pull out the plug by pulling on the mains lead. Hold the plug.

FEATURES

BUILT-IN MIXER

The PAC750/PAC770 incorporate a built-in mixer that includes inputs

and control for the built-in Tape and CD players, the stereo Aux input,

and the 4 mono Mic/Line inputs. The Aux input allows an unbalanced

stereo line level source to be connected. The 4 mono Mic/Line inputs

allow either a microphone (either high or low sensitivity) or line input to

be connected. EQ and pan controls are provided on those inputs to

allow for feedback elimination and mixer customization.

AUTO DUCKING

The PAC750/PAC770 incorporate an Auto Ducking feature that allows

the Mic/Line inputs to work in conjunction with the Tape, CD, and Aux

inputs. With the Auto Ducking feature set to -15dB, everything works as

normal except for when any of the Mic/Line inputs has an active signal.

When this occurs, the Tape, CD, and Aux inputs drop down in level by

-15dB. When Auto Ducking is set to -∞, the Tape, CD, and Aux inputs

are dropped out completely when the Mic/Line inputs are active.

VOICE REDUCTION

The Tape, CD, and Aux inputs to the mixer contain a Voice Reduction

circuit that can effectively reduce the vocal tracks in most music. Please

be aware that results vary according to the music and the way it was

recorded.

AMPLIFIER (PAC770)

The PAC770 contains a powerfull amplifier that allows versatile speaker

connection. The 1/4" connectors are very convenient for portable use

while the binding posts allow connection of single-ended banana plugs

or a secure bare wire connection.

TEMPO CONTROL

The PAC750/PAC770 CD player allows for the adjustment of the playing

speed (Tempo) from -50% to +50%. This feature is similar to Pitch

control except that the Key (musical pitch) of the CD output does not

change when the Tempo is adjusted.

KEY CONTROL

The PAC750/PAC770 CD player allows for the adjustment of the Key

(frequency/musical pitch) from -1 octave to +1 octave during playback.

This feature allows the music to be adjusted in order to match correctly

to an instrument or a voice.

A-B LOOP

The PAC750/PAC770 allows two points within the CD to be selected and

the audio within these points will be repeated until a stop command is

issued.

SINGLE TRACK PLAY

The PAC750/PAC770 can be set for the CD player to play the selected

track and then stop and cue up the next track.

AUTO CUE

This feature allows the CD player to advance to the beginning of the

audio within the track rather than start from the track start flag. This

feature helps to minimize the silence at the beginning of a CD track.

PITCH CONTROL

The PAC750/PAC770 tape player allows for adjustment of the playback

pitch (key + tempo) from -12% to +12%. The feature is particularly useful

to tune a tape to accompanying instruments and choirs.

QUICK OPTICAL AUTOREVERSE

In addition to the normal tension reversing circuitry the PAC750/PAC770

tape transport also employs optically sensing quick autoreverse cir-

cuitry. This circuitry reacts to the clear areas of the tape, usually the

leader tape, and when detected will reverse the direction of the tape

transport. This process minimizes the lose of signal being recorded or

played back. This reverse process applies to all tape playback and

recording modes, including autoreverse and continuous mode.

DOLBY NR SYSTEMS

The Dolby Noise Reduction systems compress and amplifies the input

signal during recording in order to raise the signal-to-noise ratio on the

tape. During playback, these signals are expanded and attenuated by

the same amount in order to regain the original dynamic range of the

music. An additional result of this expansion and attenuation is that the

noise floor of the recording is reduced significantly. Dolby B typically

reduces noise by 10dB and Dolby C typically reduces noise by 20 dB.

DOLBY HX PRO HEADROOM EXTENSION

The Dolby HX PRO system monitors the total amount of effective bias

during recording and instantaneously compensates for any excess bias

by reducing the tape deck’s bias signal level accordingly. The system

operates independently on each channel. HX Pro is unlike a noise

reduction system because it functions only during recording and no

decoding is required. Therefore a tape recorded with the HX Pro system

can be played back on any other cassette deck while retaining the

benefits of HX Pro.

ONE TOUCH DUBBING

The PAC750/PAC770 allows dubbing of the CD to the tape with one

button start control. This feature allows manual or automatic record level

control.

RC5 REMOTE CONTROL COMPATIBILITY

The PAC750/PAC770 comes equipped with an RC5 remote in and out

port. Through the use of various remote control options, major functions

of the unit can be operated via wired or wireless remote control.

ENGLISH

REAR PANEL CONNECTIONS

AAUX INPUT JACKS

These jacks should be connected to the LINE OUTPUT of your

source.

BLINE OUTPUT (CD, TAPE, PRE-AMP(MIX)) JACKS

These jacks can be connected to the appropriate LINE INPUT of a

power amp, PA or monitoring system.

CEFFECT INPUT & OUTPUT JACKS

These jacks are used to connect to a graphic equalizer or an effects

processor. When such a device is connected, set the EFFECT

switch to the ON position. When such a device is not connected, set

the EFFECT switch to the OFF position.

¡If the switch is left ON without anything connected, no audio will be

output through the pre-out or the speakers.

DMPX FILTER SWITCH

When recording FM broadcasts, set this switch to the ON position to

eliminate the FM carrier signal.

EREMOTE CONTROL JACKS

These jacks are used with an infrared or wired remote control to

provide remote operation of the PAC750/PAC770.

The signal format of this interface is Philips RC5.

¡These jacks can be serially linked to provide serial remote control

operation of multiple RC5 equipped products as well.

FMONO BRIDGE SWITCH (PAC770)

¡This switch is used to select between mono bridge and stereo

amplified output mode.

When this switch is in the OFF position, the unit functions as a stereo

power amp. When this switch is in the ON position, the unit functions

as a monaural amp. (For details on how to connect the speakers,

refer to page 52.)

¡This switch only effects the binding post speaker outputs and not the

1/4” speaker outputs.

¡Make sure this switch is OFF when the 1/4” speaker outputs are

used.

G, KAMPLIFIED SPEAKER OUTPUTS (PAC770)

These jacks are used to connect to passive (non-powered) speakers.

When using a speaker system in stereo mode with left and right

channels, connect the right channel speaker to the output terminal

Glabeled “R,” and the left channel speaker to the output terminal G

labeled “L”. In stereo mode, use a speaker system with an impedance

of 4 to 16 ohms.

When using a single (mono) speaker system, set the MONO BRIDGE

switch to “ON”. Connect the speaker to the red terminals for both the

“L” and “R” speaker terminals G. Do not use the black terminals. In

mono mode, use a speaker system with an impedance of 8 to 16

ohms.

¡MONO BRIDGE mode is only available on the binding post speaker

outputs and not the 1/4” speaker outputs.

HFUSE Holder

CAUTION : Disconnect AC power before removing.

This receptacle holds a specific fuse that is used to prevent overload

and shorting.

IAC TERMINAL

Connect the AC cord that is provided with the unit to this terminal.

JSPEAKER SELECT SWITCH (PAC770)

This switch is used to select between the two sets of speaker

terminals (Kand G).

¡Speaker terminals Kand Gcannot both be used simultaneously.

¡Speaker terminal Kdoes not permit mono bridge connection.

However, make sure the MONO BRIDGE switch is in the OFF

position.

LEQ & PAN CONTROLS

The recessed EQ controls allow the tone of each MIC/LINE input to

be adjusted to obtain optimum sound quality. Turning each control

to the right boosts the corresponding frequency range and to the left

attenuates it.

LOW : Controls the tone of the lower frequencies. (100Hz)

HIGH : Controls the tone of the higher frequencies. (15kHz)

The recessed PAN control adjusts the MIC/LINE input to the desired

position (L, R or L + R) in the mixing bus.

When the knob is at the center position, the MIC/LINE signal is

centered between the left and right. To position the output on the left

side, turn the knob towards “L”. To position the output on the right

side, turn the knob towards “R”.

MMIC/LINE INPUT JACKS

Each set of these inputs is designed to accept either a microphone

(MIC) or line (LINE) level signal. All of the input jacks are balanced.

For a microphone level signal, set the MIC ⇔LINE switch to the MIC

position. For all MIC inputs, set the SENSITIVITY to either HIGH or

LOW, according to the sensitivity of the microphone. If a microphone

that requires phantom power is used with the XLR input, set the

PHANTOM switch to the “ON” position.

For a line level input, set the MIC ⇔LINE switch to the LINE position.

¡The XLR input and the 1/4” input cannot be used at the same time.

NSYSTEM OUTPUT JACKS (PAC750)

The system output jacks are the final output of the mixer and can be

used when connecting the PAC750 to a power amp, PA, or monitoring

system. The RCA jacks are unbalanced outputs. The XLR jacks are

balanced outputs.

ENGLISH

FRONT PANEL FEATURES

qPOWER BUTTON

Push this switch in to turn the unit on and off. When power is turned

off, all past settings are removed from memory and the unit returns

to its default setting upon the next power up.

wCASSETTE TAPE HOLDER

This holds the cassette tape for playback and record functionality.

Tapes that have the record protect tab removed will not enter into the

record mode.

eEJECT BUTTON

Press this button to open the cassette tape holder.

rTAPE DECK AND CD PLAYER CONTROL

TAPE DECK CONTROL BUTTONS

7STOP BUTTON

Press this button to cancel all current operations of the tape deck.

3FORWARD PLAY BUTTON

Press this button to engage the tape deck into the forward play

function.

2REVERSE PLAY BUTTON

Press this button to engage the tape deck into the reverse play

function.

1REWIND BUTTON

Press this button to engage the tape transport into the fast rewind

mode from the right (take-up) to the left (supply) reels. When this

button is pressed during playback, the tape deck will search for the

next program in the reverse direction.

¡¡

¡FAST FORWARD BUTTON

Press this button to engage the tape transport into the fast forward

wind mode from the left (supply) to the right (take-up) reels. When

this button is pressed during playback, the tape deck will search for

the next program in the forward direction.

¶¶

¶REC/PAUSE BUTTON

Press this button to engage the tape transport into the record-pause

mode. In this mode the tape deck is ready to begin recording. The

tape record mode can be engaged by pressing the FORWARD

PLAY 3or REVERSE PLAY 2buttons.

CD PLAYER CONTROL BUTTONS

0OPEN/CLOSE BUTTON

Press this button to open the CD door and eject the disk. Press this

button again to close the CD door and read the disc.

¡The OPEN/CLOSE button is disabled during the play mode.

7STOP BUTTON

Press this button to stop the CD player while in the play mode. During

the program mode, the STOP button will cancel the current program

when the CD player is in the stop mode.

6PLAY/PAUSE BUTTON

When this button is pressed during the stop mode, the CD player will

start playback from the beginning of the disc or program, and then

continue to play until the end of the disc or program.

When this button is pressed during the play mode, the CD player will

enter the pause mode.

When this button is pressed during the pause mode, the CD player

will enter the play mode.

4PREVIOUS/REVERSE SEARCH BUTTON

When this button is pressed during the stop mode, tracks can be

selected for playback by searching in the reverse order, starting

from the last track on the disc.

When this button is pressed during the play mode, the CD player will

skip back to the beginning of the current track. If immediately

pressed again, the CD player will skip back one track for every time

the button is pushed.

During the program mode, this button is used to select the tracks to

be saved in the program.

If this button is pressed and held during playback, the CD player will

enter audible reverse search mode until the button is released.

¢¢

¢NEXT/FORWARD SEARCH BUTTON

When this button is pressed during the stop mode, tracks can be

selected for playback by searching in the forward direction, starting

from track number 1.

When this button is pressed during the play mode, the CD player will

skip forward one track for every time the button is pushed.

During the program mode, this button is used to select the tracks to

be saved in the program.

If this button is pressed and held during playback, the CD player will

enter the audible forward search mode until the button is released.

SINGLE PLAY BUTTON

Press this button to toggle the Single Track Play feature on and off.

When on, the TRACK (g) indicator in the display will flash and, during

playback only, the Single Play button will light. When the CD player

is stopped, only the TRACK inicator will flash to indicate that the

Single Track play mode is active. The Single Track button will not

light so it does not look like the CD player is playing while it is

stopped.

Once the Single Track play mode has been activated, it will stay on,

even if discs are changed, until it is turned off or the power has been

switched off.

When Single Track Play is activated, the CD player will do two things

differently than normal: first, each time a track is selected via the 4

and ¢buttons, the track will not start playing but will enter the

Pause mode at the beginning of the audio (cued up). Second, when

a track that is playing comes to an end, the next track will not start

playing but will be cued up to the audio in Pause mode.

¡While the CD player is stopped, Single Track play can be turned on

and off but is only indiated by the flashing TRACK (g) indicator.

Once playback starts, the Single Play button will light.

¡Single Track play can be switched on or off at any time by pressing

the Single Track button.

tTAPE COUNTER BUTTON

MEMO BUTTON

Press this button to store the current tape location into the counter

memory. Once this memory point is set, the tape deck will rewind or

fast forward until it reaches this point in the tape and will stop. To

clear the memory press the MEMO button again.

RESET BUTTON

Press this button to reset the current tape counter reading from its

existing point to “0000”.

yAUTO DUBB BUTTON

Press this button to engage the tape transport into the dubbing

mode from the CD player.

¡See page 15 for more information on the operation of this function.

ENGLISH

uTAPE PITCH KNOB

Rotate this knob to adjust the tape deck playback pitch (key +

tempo) from -12% to +12%. While the control is in the center detent

position, the tape deck is at normal (0% variance) pitch.

¡This control has no effect on the tape pitch during the record mode.

iKEY BUTTONS

These buttons can be used to change the key (frequency/musical

pitch) of the sound from the CD by up to ±1 octave.

The “+” key raises the key in 12 1/2 cent increments. Press and hold

the “+” button to quickly increase the key.

The “–” key lowers the key in 12 1/2 cent increments. Press and hold

the “–”button to quickly decrease the key.

Press both “+” and “–” at the same time to quickly return the key back

to 0.00 position (normal key).

¡See page 15 for more information on the operation of this function.

oTIME BUTTON

By pressing the TIME button you can toggle the CD player time

display with the following. Normal (no indication) - Displays the time

elapsed within the current track being played. REM- Displays the

remaining time left of the current track being played. TOTAL REM-

Displays the total time remaining on the current disc being played.

!0 REPEAT BUTTON

This button can be used to set the CD player in all track or single track

repeat play mode. The first press of the REPEAT button places the

CD player in the all track repeat mode and the “REPEAT” indicator

will light in the display. The second press of the REPEAT button

places the CD player in single track repeat mode and the “REPEAT”

and “1” indicator will light in the display. The third press of the

REPEAT button will exit all repeat play modes.

!1 A-B BUTTON

This button allows you to repeat a specific section in the current CD

track that is being played. When this control is pressed the first time,

the A-B indicator flashes and this position on the track is noted as the

start or A point.

When this control is pressed again, the A-B indicator lights

continuously, and this position on the track is noted as the end or B

point. After setting the end point, the CD player returns to the start

point (A), and plays until it reaches the end point (B). The CD player

will repeat this function until the STOP or REPEAT button is pressed.

Subsequent press of this button will change the B point into the A

point and allow a new B point to be set.

¡See page 14 for more information on the operation of this function.

!2 PROGRAM BUTTON

When this button is pressed once, the CD player enters the program

entry mode and the program indicator will begin to flash. Pressing

the PROGRAM button again will return the CD player to the normal

play mode.

¡See page 14 for more information on the operation of this function.

!3 REVERSE MODE SWITCH

This switch sets the automatic tape direction of the tape transport

during playback, normal recording, or dubbing.

:One-way mode.

In this position the tape will play or record one side of the tape

and stop.

:Two-way mode.

In this position the tape will play or record both sides of the tape

and stop.

:Continuous mode

In this position the tape will play the tape in a continuous loop

until the stop command is given. In the record mode the tape will

record both sides of the tape and stop.

!4 DOLBY NOISE REDUCTION SWITCH

This switch allows for the encoding or decoding of Dolby B or C

Noise Reduction. When recording with Dolby Noise Reduction,

select the type (B or C) of noise reduction desired and place the

switch in the appropriate position. When playing a tape with Dolby

Noise Reduction encoded onto it, place this switch in the same

position (B or C) as it was recorded in.

!5 ALC (AUTOMATIC RECORD LEVEL CONTROL) SWITCH

This switch performs automatic control of the input level during

recording. When this switch is set to the OFF position, the recording

level is controlled by the record level knob. When this switch is set

to the ON position, the record level is set automatically and the

record level knob is disabled.

!6 RECORD LEVEL KNOB

This knob controls the record level up or down during manual

recording.

!7 RECORD BALANCE CONTROL

This recessed control allows for the adjustment of the record level

between the left and right channels. By using a phillips type

screwdriver, you can adjust this balance control between left (counter-

clockwise) and right (clockwise).

!8 HP (HEADPHONE) SELECT SWITCH

This switch is used to select which source is monitored through the

headphone jack.

!9 HEADPHONE JACK

This output jack is used to connect to a set of headphones.

¡This jack requires a 1/4” type connector.

@0 CD TRAY

The CD tray is used to hold a CD for playback.

ENGLISH

@2 HP (HEADPHONE) LEVEL KNOB

This knob is used to control the volume level of the headphone

output.

@3 TEMPO BUTTONS

These buttons are used to change the tempo (speed) of the sound

from the CD by up tp ±50%.

The UP button increases the speed in steps of 1%.

The DOWN button decreases the speed in steps of 1%.

If both the UP and DOWN buttons are pressed at the same time, the

TEMPO will return to the 0% position (normal speed).

¡See page 14 for more information on the operation of this function.

@4 TAPE/CD/AUX GAIN KNOBS

These knobs are used to determine the amount of signal from the

TAPE, CD and AUX sources that is input to the mixer.

@5 MIC/LINE (1 to 4) GAIN KNOBS

These knobs are used to determine the amount of signal from the 4

MIC/LINE sources that is input to the mixer.

@6 MASTER VOLUME KNOB

This large knob is used to control the final output level of the mixer

through the PRE-OUT (PAC770), SYSTEM OUT (PAC750), and

AMPLIFIED OUT (PAC770).

@7 EQ (LOW, MID, HIGH) CONTROLS

Turn these knobs to adjust the tone of the mixed output. Each a knob

controls the level of the corresponding frequency range. Turning

each control toward “+” boosts the corresponding frequency range

and toward “-” attenuates it.

LOW : Controls the tone of the lower frequencies. (100 Hz)

MID : Controls the tone of the midrange frequencies. (1 kHz)

HIGH : Controls the tone of the upper frequencies. (15 kHz)

@8 BALANCE CONTROL

This knob can be used to correct a left/right imbalance, to isolate the

left or right channel during mono playback, or to compensate for

different left/right acoustics in a room or in a particular situation.

¡Please note that when this knob is turned fully clockwise or counter-

clockwise all sound is muted on the opposite channel.

@9 AUTO GAIN CONTROL SWITCH (MIC/LINE)

This switch is used to select if the mixer level of the MIC/LINE inputs

are controlled automatically or manually.

OFF : The MIC/LINE gain knobs are used to adjust the mixer level.

ON : The MIC/LINE mixer levels are controlled automatically and

the gain knobs are disabled.

#0 AUTO DUCKING SWITCH

This switch is used to automatically adjust the CD, TAPE and AUX

mixer levels in response to the MIC/LINE inputs.

The reduction level can be selected by pressing the button. Pressing

the button cycles through the following settings: -15 →-∞→OFF.

-15 : The CD, Tape and AUX levels are reduced by 15dB when any

MIC/LINE input is active.

-∞: The CD, Tape and AUX levels are eliminated when any MIC/

LINE input is active.

If the MIC/LINE input level goes down, the CD, TAPE and AUX output

levels return to their original levels after 1 to 3 seconds.

#1 VOICE REDUCTION SWITCH

This switch automatically reduces the vocals on the TAPE, CD and

AUX sources.

¡The performance of this function is determined by the way the

source material was recorded. Recordings with the vocals centered

equally between the lest and right channels works best.

@1 DISPLAY INDICATORS

aCOUNTER display indicates the amount of tape that has travelled

across the head.

bLEVEL indicators display the record or playback signal levels of

the tape deck.

cDOLBY NR B C indicators display the type of Dolby noise

reduction that has been selected.

dMEMO indicator is displayed when the tape deck memory

function is turned on.

eHX PRO indicator is displayed showing HX PRO is activated.

fDUBB indicator is displayed when dubbing from the CD player

to the tape deck.

gTRACK number indicator displays the total amount of CD tracks

in the disc or program during stop and the current track playing

in the play mode.

TRACK indicator will flash when the CD player is in the Single

Track Play mode.

hTIME indicator displays the playing time of the CD in 4 digits

representing minutes and seconds. This display typically

represents elapsed time of the track being played. When the

REM indicator is displayed, the time shown represents the

remaining time of the track being played. When the TOTAL REM

indicator is displayed, this represents the total remaining time of

the CD or of the program currently being played. In the stop

mode the total playing time of the CD is displayed.

iTRACK number indicator (1 through 20) displays the track

numbers on the CD. When in the program mode, the tracks

programmed are displayed. Upon completion of playing a track,

the number will disappear. When playing a CD with more than

20 tracks on it, the “⇒” indicator is displayed.

jPROGRAM indicator is displayed to indicate that the CD player

is in the program mode. The indicator flashes during the program

entry mode. This indicator can be turned on and off by pressing

the program button.

kREPEAT indicator is displayed when the CD player is in the all

track repeat mode. REPEAT 1 is displayed when the CD player

is in the single track repeat mode.

lA-B indicator is displayed when the CD player is in the A-B

repeat mode. When the A-B indicator is flashing, this indicates

standby for the setting of point B.

mREC indicator is displayed when the tape deck is in the record

mode. When the REC indicator is flashing, this indicates the tape

deck is in the record pause mode.

nTAPE DECK PLAY indicators (located inside the tape PLAY

buttons) displays the direction and mode of the tape transport.

When the indicator is flashing, this indicates the transport is in

the pause mode in the indicated direction. When the indicator is

constantly on, this indicates that the transport is in the play or

record mode in the indicated direction. This indicator will not

light if there is not a tape in the transport.

oCD PLAYER PLAY indicator (located inside of the CD PLAY/

PAUSE button) displays a constant indicator when the CD

player is in the play mode and a flashing indicator when in the

pause mode.

pCD PLAYER SINGLE PLAY indicator (located inside the SINGLE

PLAY button) displays a constant indicator when the CD player

is in the single track play mode and a flashing indicator when in

the single track pause mode.

When the CD player is stopped and the Single Track play feature

has been turned on, the indicator will not light but the Single

Track play mode is still active and is indicated by the flahsing

TRACK (g) indicator.

REM

TOTAL

TRACK

REPEAT1

PROGRAM

A-B

MEMO

DUBB

DOLBY

PRO

19181716151413121110

987654321

-3-6

-10-15-20

ahgdef

bc jkl

ENGLISH

OPERATION

The following operating procedures are based on the assumption that

the power is on and that all necessary input and output connections have

already been made. Please refer to the section in this manual marked

“Rear Panel Connections”.

MIXER OPERATION

The PAC750/770 includes a versatile built-in Mixer that allows the output

to be coordinated with the Tape deck, CD player, AUX input, and the four

Mic/Line inputs. Each input to the Mixer has a gain control knob on the

front panel that controls the amount of signal that is added to the mix.

The final output of the Mixer is controlled by the MASTER VOLUME knob

@6, the EQ controls @7, and the BALANCE knob @8.

The final output of the Mixer is then sent to the PRE-OUT (SYSTEM OUT

on the PAC750) as a line level signal. On the PAC770, the signal is also

sent to the internal amplifier and then output on the SPEAKER terminals,

which can be attached directly to an appropriate speaker system.

The Mixer In Relation To The Tape Deck

The recording circuitry of the Tape Deck is directly patched into the

mixer, meaning that the Tape Deck will record whatever the Mixer

outputs. Therefore, the final level recorded onto the tape will be determined

by the setting of the Mixer gain controls and the Tape Deck record level

control.

CASSETTE DECK OPERATION

Cassette Tape Playback

1. Open the cassette holder by pressing the eject button. Load a

cassette tape into the cassette holder and close. The 3indicator on

the play forward button will begin to flash.

2. Set the DOLBY NOISE REDUCTION switch to the same position as

the tape was originally recorded in (i.e. tapes recorded with Dolby B

noise reduction need to have this switch in the Dolby B position, tapes

recorded with Dolby C noise reduction need to have this switch in the

Dolby C position, and tapes recorded without Dolby Noise Reduction

need to have this control set to the Off position).

3. Set the reverse mode switch to the desired position.

4. Press the 3PLAY button to begin playback in the forward direction.

Press the 2PLAY button to begin playback in the reverse direction.

When the tape enters into the playback mode the indicator on the play

control button will change from the flashing mode to a constant on

mode.

5. Adjust the gain into the mixer using the TAPE knob @4.

6. Adjust the volume with the VOLUME knob @6.

7. Pressing the STOP button rwill stop the tape.

Searching For Tracks

While a tape is playing back, pressing the ¡(Fast Forward) or 1

(Rewind) button will cause the tape deck to forward search for the next

track or reverse search to the beggining of the current track, depending

on the direction of playback.

When the search is concluded, the tape deck will stop.

Notes

¡For normal Fast Forward and Rewind, the STOP button must first be

pressed.

Rewind & Fast Forward

When the tape deck is stopped, and regardless of the current direction,

pressing the ¡(Fast Forward) button will place the tape transport in the

high speed fast forward mode and the tape will advance quickly from left

to right. Pressing the 1(Rewind) button will place the tape transport

in the high speed rewind mode and the tape will retract quickly from right

to left.

In either the fast forward or the rewind mode, the tape transport will

continue to fast forward or rewind until the stop control button is pressed

or the end of the tape or a saved memo point is reached.

Cassette Tape Record

1. Open the cassette holder by pressing the eject button. Load a

recordable cassette tape into the cassette holder and close. The 3

indicator on the play button will begin to flash. (If you wish to change

the tape direction, press the 2PLAY button and then press the STOP

button).

2. Set the DOLBY NOISE REDUCTION switch to the desired position to

record the tapes with noise reduction (i.e. tapes to be recorded with

Dolby B noise reduction need to have this switch in the Dolby B

position, tapes to be recorded with Dolby C noise reduction need

to have this switch in the Dolby C position, and tapes to be recorded

without Dolby Noise Reduction need to have this switch set to the OFF

position).

3. Set the reverse mode switch to the desired position.

4. Set the AUTO LEVEL switch to the desired position.

5. Press the REC button. The REC indicator will begin to flash indicating

the tape transport is in the record-pause mode.

6. If the AUTO LEVEL switch is in the OFF position, use the manual

record level control to adjust the input signal to the desired recording

level.

7. Press the 3PLAY control button to begin recording in the forward

direction.

8. To pause recording, press the REC button. Press the PLAY button to

resume recording.

9. Pressing the STOP button will stop recording.

Erasure Of Tape

When a program source is recorded onto a tape, the previously re-

corded sound is erased automatically, and replaced with the new

recording. If you wish to erase a tape without recording, set the

RECORD LEVEL control to the minimum (0) position and record.

Set the AUTO LEVEL off.

To Protect Valuable Recordings

In the record mode, information previously recorded on the tape will

automatically be erased. To prevent this from happening, use a small

screwdriver to break out one or both safety tabs (See Figure 2 on pg. 17).

It is possible to restore the recording capability of either side of the

cassette by covering the opening with clear adhesive tape (See Figure

4 on pg. 17).

Auto Tape Selector

This unit is equipped with an auto tape selector which automatically sets

the bias and equalizer level using the detection holes provided in the

cassette shell. The bias and equalizer levels are automatically set

according to the type of cassette as follows. (See Figure 3 on pg. 17)

¡Normal tapes EQ = 120µS, Bias = Low

¡High tapes EQ = 70µS, Bias = High

¡Metal tapes EQ = 70µS, Bias = Metal

ENGLISH

CD PLAYER OPERATION

CD Playback

1. Open the CD tray by pressing the OPEN/CLOSE button. Place a CD

onto the tray and close the tray by pressing the OPEN/CLOSE button.

The display will show the general data of the current CD after it has

been read.

2. To begin playback of the CD, press the PLAY/PAUSE button. The 3

indicator in the PLAY/PAUSE button will illuminate, the display will

show the data for the first track, and the track will begin to play.

3. Adjust the gain into the mixer using the CD knob @4.

4. Adjust the volume with the VOLUME knob @6.

5. To pause the CD during playback, press the PLAY/PAUSE button.

The CD will remain in the current position and the 3indicator in the

PLAY/PAUSE button will begin to flash. Pressing the PLAY/PAUSE

button will resume playback from the point that the CD player was

paused.

6. Playback will continue until the end of disc is reached or the STOP

button is pressed.

Selecting The Playback Track

By pressing the ¢NEXT or 4PREVIOUS buttons you can select

the track to be played. Each press of the ¢button will advance the

player to the beginning of the next track.

Each press of the 4button will cause the CD player to skip to the

beginning of the current track. If immediately pressed again, the CD

player will skip back one track for every time the button is pushed.

A-B Repeat

1. Start playback.

2. Press the A-B button at the beginning of the part you want to repeat.

“REPEAT” lights and “A-B” blinks in the display.

3. Press the A-B button again at the end of the part you want to repeat

to start the A-B repeat.

“REPEAT A-B” lights in the display.

4. Press the A-B button again to change the end point (point B) to the

new start point (new point A).

5. After the new start point is passed, press the A-B button again to set

the new end point (new point B) and re-start A-B repeat.

6. To continue to re-mark the A-B repeat points, repeat steps 4 and 5.

7. Press the REPEAT button to return to the normal play mode.

Notes

¡A-B repeat across more than one track is not possible. (If the next track

starts after having set point A in a track, A-B repeat is canceled

automatically.)

Pressing the “+” key Pressing the “–” key

TEMPO 0% TEMPO 0%

+1% -1%

+2% -2%

+3% -3%

TEMPO +50% TEMPO -50%

Pressing A-B during A-B

repeat changes point B to

point A. (step 4)

Point B cannot be

set in this section.

Programming Playback Tracks

(PROGRAM PLAY MODE)

This procedure allows a program of selected tracks for playback in any

order.

1. By pressing the PROGRAM button once you will place the CD player

into the programming mode. Once the PROGRAM button is pressed,

the PROGRAM indicator in the CD display will begin to flash. This

indicates the CD player is in the program entry mode.

2. By pressing the ¢NEXT or the 4PREVIOUS button, tracks to

be programmed are selected. Each press of the ¢button will

advance the CD player to the next track. Each press of the 4button

will cause the CD player to skip to the previous track. When the

desired track number has been selected, leave the CD player

untouched for approximately 1.5 seconds and the selected track will

be stored in the program. Continue this procedure until all desired

tracks (30 tracks maximum) have been programmed.

3. By pressing the PLAY/PAUSE button, the CD player will exit the

program entry mode and enter the program play mode. The

PROGRAM indicator in the CD display will light constantly and the

CD player will begin to play in the order selected during the program

entry mode.

4. By pressing the STOP button, the CD player will stop playing but will

remain in the program play mode. The program will remain in

memory.

5. When the STOP button is pressed while the CD player is in the stop

mode, the memorized program will be cleared.

Tempo Control

The PAC750/PAC770 is equipped with the ability to change the CD

playback speed by up to ±50% without changing the key (musical pitch)

of the sound from the CD.

The “+” button increases the speed in steps of 1%.

The “–” button decreases the speed in steps of 1%.

Holding down either the “+” or “–” buttons for more than 1 second causes

the speed to change rapidly.

Pressing both the “+” and “–” buttons at the same time will return the

TEMPO to the 0% position (normal speed).

Display

¡If the “+” or “–” buttons are pressed while the time display is shown,

the current position of the TEMPO control is displayed the first. Once

one of the “+” or “–” are pressed a second time, the position then

changes.

¡If the KEY has been changed, TEMPO control is not available.

Restore KEY control to the 0.00 position in order to use TEMPO

control.

ENGLISH

CD TO TAPE DUBBING

The CD player can dubb directly to the tape deck either manually or

automatically. Manual dubbing allows the recording level to be set by the

RECORD LEVEL knob and then recording is started manually. Auto-

matic dubbing adjusts the recording level automatically based on the

peak levels of the CD and then starts recording automatically.

Manual Record Level Dubbing

1. By pressing the OPEN/CLOSE button and the tape EJECT button,

load the source CD onto the CD tray and a recordable tape into the

tape holder. Close both the CD tray and the tape holder. The display

will show the general CD data and the tape play indicator located

inside the tape PLAY button will begin to flash.

2. Prepare the tape for dubbing by rewinding it to the beginning of the

first side that the tape is to be recorded onto.

3. Set the AUTO LEVEL switch to the OFF position.

4. Press the AUTO DUBB button once. The REC indicator will begin to

flash, the DUBB indicator will light, and the CD player will enter the

play mode. At this point you can adjust the record level to achieve the

desired recording level.

5. After adjusting the record level, press the AUTO DUBB button again.

The CD player will return to the stop mode, and the tape transport will

enter into the record mode. After approximately 5 seconds, the CD

player will enter the playback mode and begin to play the first track,

dubbing it onto the tape.

6. When either the CD transport or the tape transport have reached the

end and stopped, the other transport will also stop.

7. To end the dubbing during a session, press the STOP on the tape

deck or the STOP button on the CD player.

Automatic Record Level Dubbing

1. By pressing the OPEN/CLOSE button and the tape EJECT button,

load the source CD onto the CD tray and a recordable tape into the

tape holder. Close both the CD tray and the tape holder. The display

will show the general CD data and the tape play indicator located

inside the tape PLAY button will begin to flash.

2. Prepare the tape for dubbing by rewinding it to the beginning of the

first side that the tape is to be recorded onto.

3. Set the AUTO LEVEL switch to the ON position.

4. Press the AUTO DUBB button once. The REC indicator will begin to

flash, the DUBB indicator will light and the CD player will enter play

mode. The CD player will automatically begin to search the CD for the

peak level. This procedure could take as long as 5 minutes to

complete. Once the peak level has been determined, the record level

for dubbing will be set automatically.

5. After the record level has been set, the tape transport will enter into

the record mode. After approximately 5 seconds, the CD player will

enter the playback mode and begin to play the first track, dubbing it

onto the tape.

6. When either the CD transport or the tape transport have reached the

end and stopped, the other transport will also stop.

7. To end the dubbing during a session, press the STOP on the tape

deck or the STOP button on the CD player.

¡When dubbing is started with a program of CD tracks, the tracks are

dubbed in the order of the program.

¡During dubbing, a blank space of approximately 4 seconds is

automatically inserted between CD tracks. This may hinder some

dubbing such as live recordings on CD. If this is a problem, dubb

from the CD to the tape manually using the mixer.

¡When recording with the reverse mode switch set to the two way or

the continuous mode, there may be an interruption in recording of

approximately 1 second during the optical reversing of the tape

transport.

Key Control

The PAC750/PAC770 is equipped with the ability to change the key (or

musical pitch) of the sound of the CD by up to ±1 octave.

The key control system works on the following musical principles:

100 cents=1 half step

12 half steps=1 octave

The “+” button raises the key in steps of 12.5 cents and is displayed as

a percent of the next half step up, rounded to the nearest tenth. For

example, to raise the key of the CD by 2 1/2 half steps, the display should

show 2.50.

The “–” button lowers the key in steps of 12.5 cents and is displayed as

a percent of the next half step down, rounded to the nearest tenth. For

example, to lower the key of the CD by 3 1/4 half steps, the display should

show -3.25.

Holding down either the “+” or “–” buttons for more than 1 second causes

the key to change rapidly as long as the button is held down.

Pressing both the “+” and “–” buttons at the same time will return the KEY

to the 0.00 position (normal key).

Display

¡If the “+” or “–” buttons are pressed while the time display is shown,

the current position of the KEY control is displayed first. Once one of

the “+” or “–” keys are pressed a second time, the position then

changes.

¡If the TEMPO has been changed, KEY control is not available.

Restore TEMPO control to the 0% position in order to use KEY

control.

CD-RW/CD-R Playback

The PAC750/PAC770 can play back CD-RW (ReWritable) discs as well

as ordinary music CD and CD-R (Recordable) discs.

* The CD-R and CD-RW discs should contain properly-recorded TOC

information so that they can be played back. With the CD recorder

system, writing the TOC information in a disc is referred to as finalizing

the disc. A disc cannot be recognized as a CD disc and played back

unless it has been finalized properly. For details, please read the

instruction manual provided with a CD recorder.

* TOC stands for Table Of Contents and contains information such as

the total number of tracks and total playing time of the disc.

* The PAC750/PAC770 can play only the discs recorded in the CD-DA

format designed for music reproduction. Do not attempt to play a disc

containing other data, such as a CD-ROM for PCs, on this unit.

* As the playback of a CD-RW disc necessitates partial change of the

player setup, it may take longer to read the TOC information compared

to a music CD or CD-R disc.

* Because CD-RW discs have lower reflectivity than CDs and CD-R

discs, dirt on the surface of a CD-RW disc can generate noise, make

the CD-RW disc unplayable, or cause misoperation. If any of these

symptons occur, wipe the surface of the CD-RW disc as indicated on

page 17.

Pressing the “+” key Pressing the “–” key

KEY 0.00 KEY 0.00

+0.13 -0.13

+0.25 -0.25

+0.38 -0.38

+0.50 -0.50

+0.63 -0.63

+0.75 -0.75

+0.88 -0.88

+1.00 -1.00

+1.13 -1.13

KEY +12.00 KEY -12.00

ENGLISH

TROUBLESHOOTING

Should faults occur, it is, in many cases, not necessary to consult your

dealer or technical service department. On the basis of the following

checks you will be able to rectify a number of conditions yourself without

difficulty.

If the condition cannot be remedied after the following checks, please

consult your dealer or the Superscope technical service department at

(630) 820-4800.

POWER AMP (PAC770)

Both speakers output monaural sound.

1. Check that the MONO BRIDGE switch is set to OFF.

Sound is output only from one of the speakers.

1. Check the setting of the BALANCE control.

2. Turn the power off and change the connections of the left and right

speakers. If sound is still not output from the same speaker, check its

connection cord or the speaker itself.

Sound is not produced at all.

1. Check that the speaker cords are connected properly.

2. Check that the VOLUME control is not set at the minimum level.

3. Check that the EFFECT ON/OFF switch is OFF, if nothing is con-

nected with the EFFECT jacks.

Sound consistently cuts off.

1. Check the temperature of the unit by placing your hand on the top or

bottom. If the temperature is extremely hot, the amplifier is cutting off

to portect itself. The output level must be decressed in order to

maintain a consistent output.

MIXER

MIC/LINE sound is not produced at all

1. Check that the MIC/LINE gain is not too low.

2. Check that the SENSITIVITY switch is set correctly based on the type

of input.

MIC/LINE sound is distorted

1. Check that the MIC/LINE sensitivity is set correctly.

2. Check that the MIC phantom power is turned on or off.

Hum interferes with the sound.

1. Check that cords are connected properly.

2. Check that there is not any source of magnetism (TV, motor, trans-

former, etc.) placed near the unit.

TAPE DECK

The tape does not travel.

1. Check that the power cord is plugged in properly.

2. Check that the POWER switch is set to ON.

3. Check that the tape is rewound.

The tape travels, but no sound is output.

1. Check that the cassette tape is recorded.

2. Check that the speakers are connected and functioning properly.

3. Check that the TAPE gain and volume control is not set at the minimum

level.

Tape will not record.

1. Check that the protection tabs of cassette tape are not broken.

Sound is distorted.

1. Check that the recording level is not too high.

2. Check that the head is not dirty.

Sound is unstable.

1. Check that the head is not dirty.

2. Check that the pinch wheels and capstans are not dirty.

3. Check that the tape is wound tightly.

Noise is noticeable.

1. Check that the head is not dirty.

2. Check that the head is not magnetized.

3. Check that the DOLBY NR switch is set properly according to the

tape.

CD PLAYER

The disc fails to play.

1. Check that the power cord is plugged in properly.

2. Check that the POWER switch is set to ON.

3. Check that the disc is placed in the correct position on disc tray.

4. Check that the disc is placed properly with the label side facing up.

5. Check that the disc is not dirty, scratched, or warped.

The disc is playing but no sound is heard.

1. Check that the speakers are connected and functioning properly.

2. Check that the CD gain and volume control is not set at the minimum

level.

The disc stops in mid-operation.

1. Check that the disc is not dirty, scratched, or warped.

The sound drops out or noise is heard.

1. Check that the disc is not dirty, scratched, or warped.

REPAIRS

Only the most competent and qualified technicians should be allowed

to service your unit. Superscope and its factory trained warranty station

personnel have the knowledge and special equipment needed for repair

and calibration of this precision instrument.

In the event of difficulty, call the telephone number listed in this owners

manual to obtain service. Please include the model and serial number

of your unit together with a copy of your purchase receipt and a full

description of what you feel is abnormal in its behavior.

CLEANING OF EXTERIOR SURFACES

With proper care and cleaning, the exterior finish of your equipment will

last indefinitely. Never use scouring pads, steel wool, scouring powders

or harsh chemical agents (e.g. lye solution), alcohol, thinners, benzine,

insecticide or other volatile substances, as these will mar the finish of the

cabinet. Likewise, never use cloths containing chemical substances. If

the equipment becomes dirty, wipe the external surfaces with a soft, lint-

free cloth.

If the cabinet becomes heavily soiled:

– dilute some liquid soap in water

– dip a soft, lint-free cloth in the solution and wring the cloth out until it

is damp

– wipe the equipment with the damp cloth

– dry the equipment by wiping it with a dry cloth

ENGLISH

COMPACT DISC CARE

Handle discs carefully so as not to damage or scratch the front side.

To protect the disc, avoid placing it in the following locations:

– In direct sunlight or near a source of heat like a heater.

– In a place which is damp or dirty.

– In a place which could be exposed to rain, such as near a window.

Always keep the disc surface clean.

Up to six billion data units are recorded on the front side of the disc.

When cleaning the disc surface, always be sure to use a special

compact disc cleaner and wipe as shown below.

¡Do not use cleaner for analog records, as this will adversely affect the

disc surface.

Store discs properly by placing them in their disc cases.

¡Do not attach a piece of paper or sticker on the label side of disc.

When a disc has a piece of plastic tape or a rental CD label with paste

protruding from the edge or when a disc has a trace of such a sticky

object, do not attempt to play the disc. If such a disc is played on the

CD player, impossibility of taking out the disc or other malfunction may

result.

CASSETTE TAPE CARE

HEAD CLEANING

If the heads are not cleaned for a long period, dirt or dust may be

deposited on the heads and capstans, causing degraded high-fre-

quency characteristics, volume drop, or degraded recording and era-

sure performances.

To prevent this, clean the heads, etc., periodically as follows.

1. Turn the power off.

2. As shown in Figure 1, clean the parts which come in contact with tape,

including the heads, capstans, tape guides, pinch wheels, etc., with

a cotton swab soaked in head cleaning solution or denatured alcohol.

HEAD DEMAGNETIZATION

When a magnetized metallic objects (such as a screwdriver tip, etc.)

comes in contact with a head or capstan, or when the deck has been

used for a long period of time, the head may be magnetized and noise

may be generated. If the head is extremely magnetized, the high

frequencies in recorded tapes could even be erased due to it. To

prevent this, demagnetize the heads and capstans periodically (every

20 hours of use) using a commercially-available head demagnetizer.

(For the operation, please refer to the instruction manual supplied with

your head demagnetizer.)

Caution:

Be sure to turn the power of the cassette deck off before using a

head demagnetizer.

heads

HIGH/Position tape

detection hole

Wipe in a radial direction. Do not wipe in circumferential direction.

capstans

pinch wheels

Figure 1

Figure 2

Metal tape

detection hole

Figure 3

Figure 4