Harman Kardon AVR 70 User manual

The Harman Kardon
Model AVR70/AVR70MK II
AUDIO AND VIDEO RECEIVER
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The following marks found in the parts list of this manual
identify the models as follows.
~ AVR70 :North America area model Black version
0 AVR70
(with Tact type mains switch)
:International model Black version
(with Tact type mains switch)
AVR70MK II :North America area model Black version
(with Manual Operated Mechanical type mains switch)
AVR70[MOMS] :International model Black version
(with Manual Operated Mechanical type mains switch)
CONTENTS
Manual A
SPECIFICATIONS ...................................................... 2 GENERAL UNIT PARTS LIST ................................. 12
ELECTROSTATICALLY SENSITIVE (ES) DEVICE ... 3
LEAKAGE TEST .........................................................4
CONTROLS AND FUNCTIONS ................................. 5
SERVICE PROCEDURE ............................................7
TEST EQUIPMENT REQUIRED .............................:
.. 7
ALIGNMENT PROCEDURES ....................................7
ALIGNMENT AND TEST POINTS ............................. 9
CIRCUIT DESCRIPTION ......................................... 10
BLOCK DIAGRAM .................................................... 11
DISASSEMBLY PROCEDURES.............................. 12
GENERAL UNIT EXPLODED VIEW ........................ 13
P.C. BOARDS ...........................................................15
ELECTRICAL PARTS LIST......................................
23
IC BLOCK DIAGRAMS ............................................. 38
SCHEMATIC DIAGRAMS«mt .................................43
SCHEMATIC
DIAGRAMSO .................................52
PIN CONNECTION DIAGRAM.................................
61
WIRING DIAGRAM ...................................................62
PACKING MATERIAL AND PARTS LIST ...............63
harman/kardon
Parts and Service Office
80 Crossways Park West, Woodbury, N.Y. 11797
1112-AVR70 1200 Printed in Japan
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2
SPECIFICATIONS
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Nominal Limit
Continuous Power Output
(STEREO MODE), Input:
CD
THD: 0.09% 20 Hz-20 kHz
Both Channel Driven
(1 kHz)
(SURROUND MODE)
THD: 0.3%, 8 ohms, 1 kHz
THD at
70 W, 8 ohms, Input: CD
20 Hz
1 kHz
~30W
$0.03%
$0.01%
20 kHz $0.05%
IM Distortion at 70 W, 8 ohms, Vol: Max.
$0.03%
Input Sensitivity for Rated Power Output (?OW)
(STEREO MODE, 1 kHz 8 ohms, Volume: Max)
CD 275 mV
~?OW
~25W
$0.09%
$0.09%
$0.09%
$0.09%
235-315 mV
TAPE1/2, TV/LD VCR1/2, AUX 220 mV 180-260 mV
S/N Ratio Input Shorted at 1kHz 1W Output (WTD IHF-A)
CD 0.5 V Input ~82 dB ~78 dB
Tone Control
Bass: 100 Hz
Treble: 10kHz
Frequency Response at -3dB
Mode: Stereo, Ref: 1 kHz
+10 dB
-10 dB
+10 dB
-10 dB
+10 ±2.5 dB
-
10 ±2.5 dB
+10 ±2.5 dB
-10 ±2.5 dB
10 Hz-70 kHz 15 Hz-50kHz
Channel Crosstalk Input Shorted by 1 kohms
100Hz ~55 dB ~50 dB
~40 dB
~30 dB
1 kHz
10 kHz ~45 dB
~35 dB
illll111~1:llfS-,llltllim1~iiEETh1£$1f~11~~iffl@MSl1~11f?!il
RMS Output Power
THD (0.3%, 8 ohms, 1 kHz)
Only Center Channel Driven
S/N Ratio (Input Level : 245 mV)
Input Shorted, IHF-A WTD
Frequency Response at-3 dB
Nominal Limit
~BOW
~70
dB
~?OW
~65 dB
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Nominal Limit
Input Sensitivity/Impedance
LD,
TV, VCR1, VCR2, AUX 1
VP-P/75 !l
±1 dB
Output Level/Impedance
VCR1, VCR2, Monitor 1
VP-P/75 !l
±1 dB
Frequency Response at-3 dB DC-8 MHz DC-6MHz
Nominal Limit
Tuning Cover Range 75 kHz Step 87.50 -108.00 MHz
Mono Usable Sensitivity (75 ohms Input, 98 MHz)
$13.5 dbf $19.2 dbf
Image Rejection (at
98 MHz)
USA/Canada >50 dB ~40 dB
Europe ~70 dB ~60 dB
IF Rejection (at 98 MHz) ~70 dB ~65
dB
50 dB Quieting Sensitivity (at 98 Mhz, 100% MOD.)
IHF Band Pass Filter
~= ~2~ ~~~
Distortion (1 kHz, 100% MOD. at 98 MHz, 65dbf Input)
IHF Band Pass Filter
Mono $0.2%
S/N Ratio (500 µV Input, 100% MOD. at 98 MHz)
IHF Band Pass Filter
Stereo ~68 dB
Frequency Response (30 Hz -15 kHz)
USA/Canada De-Emphasis: 75µS +0.5 dB
Europe De-Emphasis: 50µ8 -2.0 dB
AM Suppression at 98 MHz
$0.5%
~63 dB
+1.0 dB
-4.0 dB
~55 dB ~45 dB
Muting Threshold (at
98 MHz) 27.2 dbf 23.3-32.0dbf
Overload Break-up at
98 MHz 71 dbf 65 dbf
Capture Ratio at
65 dbf $1.5 dB $2.5 dB
Stereo Separation (at
98 MHz, 100% MOD., 500 µV Input)
IHF Band Pass Filter
1 kHz ~40 dB ~30 dB
Tape out Level (at
98 MHz)
aoomv 600-1300 mV
8 ohms, Dolby Pro-Logic 15
Hz - 22 kHz 30
Hz -20 kHz 1*1tRIIM181VLtW•,·~-¥-~A\%tlllt,1wa,,1t1
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Nominal Limit
RMS Output Power
THD (0.7%, 8 ohms, 1 kHz)
Only Rear Channel Driven ~35 W
S/N Ratio (Input Shorted, IHF-A WTD)
Delay : 20 ms, Input Level : 245 mV ~70 dB
Frequency Response at-3 dB
~25W
~65 dB
8 ohms, Dolby Pro-Logic 15 Hz - 7 kHz
30 Hz -6.5 kHz
Line level at Pre out
Surround mode : Dolby Pro-Logic
Center speaker mode : Large
Input signal : L ch (only) 200mV
Master volume : 0 dB
Low pass crossover frequency
Slope (Low Pass filter)
Approx. 150 mVrms
80 Hz cut off
24 dB / octave
Tuning Cover Range (MW)
USA/Canada : 10 kHz Step
Other : 9 kHz Step
Tuning Cover Range (LW)
1 kHz Step
Usable Sensitivity
MW at 999/1000 kHz
LW at 207 kHz
Image Rejection (at 999 kHz)
IF Rejection (at 999/1000 kHz)
Spurious Rejection (at 999/1000 kHz)
Nominal Limit
520 • 1710 kHz
531 -1602 kHz
152 kHz -282 kHz
$500 µV/m
$1500 µV/m
~40 dB
~60 dB
~65 dB
$800 µV/m
$2000 µV/m
~35 dB
~50 dB
~55 dB
AGC Figure of Merit (From 100
mV /m at 999/1000 kHz)
~55 dB ~48 dB
Distortion (999/1000 Hz, 30% MOD. 50 mVm Input)
$1.0% $2.0%
Frequency Response (999/1000 kHz)
at -3 dB 100 Hz -2.2 kHz 150
Hz -1.8 kHz
Selectivity (at 999/1000 Hz)
9 kHz/10 kHz
18 kHz/20kHz ~30 dB
~70 dB ~20 dB ~60 dB
S/N Ratio (999/1000 kHz, With Antenna Input 50 mV//m)
(Europe: Using 15 kHz L.P.F.) ~50 dB ~45 dB
Overload Break-up at 999/1000 kHz (THD 10%)
~1000 mV/m ~500 mV/m
TAPE Output Level at 999/1000 kHz
(5 mV/m Input)
240 mV 150-340
mV
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Nominal Limit
Power Consumption
At Rated Power 2 Channel Driven 300 W 250 -350 W
Idling at Minimum Volume Control
Power Supplies :
USA/Canada
Europe
Dimensions (W x H x
D) :
inches
mm
Weight (lbs/kgs)
45 W
35- 65 W
AC 120 V, 60 Hz
AC 230 V, 50 Hz
17 1/16x 63/32 X 181/16
444 X 160 X 459
27.8/12.5
These specifications are service target specs.
Specifications and components are subject to change without notice.
Overall performance will
be maintained or improved.
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly
are called Electrostatically Sensitive (ES) Devices. Examples of typical
ES devices are integrated circuits and some
field effect transistors and semiconductor "chip" components. The following techniques should be used to help
reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge
on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, which should be removed for potential shock reasons
prior to applying power
to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to Solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage
ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to
install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive
foam, aluminum foil or comparable conductive material.)
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the
protective material to the chassis or circuit assembly into which the device will be installed.
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion
such as the brushing together oryour clothes fabric or the lifting
of your foot from a carpeted floor can generate
static electricity sufficient to damage
an ES device.)
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing.
Components identified with the IEC symbol A
in the parts list are of special significance to safety. When
replacing a component identified with A , use only the replacement parts designated, or parts with the
same ratings or resistance, wattage, or voltage that are designated
in the parts list in this manual.
Leakage -current or resistance measurements must
be made to determine that exposed parts are
acceptably insulated from the supply circuit before returning the product to the customer.
3
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LEAKAGE TEST (FOR SERVICE ENGINEERS IN THE U.S.A.)
Before returning the unit to the user, perform the following safety checks:
1. Inspect all lead dress to make
certain that leads are not pinched
or that hardware
is not lodged be-
tween the chassis and other
SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST
metal parts in the unit.
TO EACH EXPOSED
2. Be sure that any protective de-
vices such as nonmetallic control
knobs, insulating fishpapers,
cabinet backs, adjustment and
METAL SURFACE OF ._ __ ----1
UNIT UNDER TEST
compartment covers or shields,
isolation resistor-capacity net-
works, mechanical insulators,
etc. Which were removed for ser-
vicing are properly reinstalled.
3. Be sure that no shock hazard exists; check for leak-
age current using Simpson Model 229 Leakage
Tester, standard equipment item No. 21641, RCA
Model WT540A or use alternate method as follows:
Plug the power cord directly into a 120-volt AC re-
ceptacle (do not use an Isolation Transformer
for
this test). Using two clip leads, connect a 1500
Ohm, 10-watt resistor paralleled by a 0.15µF ca-
pacitor, in series with all exposed metal cabinet
parts and a known earth ground, such as a water
pipe
or conduit. Use a VTVM or VOM with 1000
Ohms per volt, or higher sensitivity to measure the
HIGH
VOLTAGE
OR+ LEAD
TEST PROBE
AC voltage drop across the resistor. (See Diagram.) TO EXPOSED
Move the resistor connection to each exposed METAL PARTS
metal part having a return path to the chassis (an-
tenna, metal, cabinet, screw heads, knobs and con-
trol shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor. (This test should
be performed with the power switch
in both the On
and Off positions.)
1.5k
10W
0.15µ F
TO AC GROUND SUCH
GROUND
AS WATER PIPE, BX CABLE.
LEAD CONDUIT, ETC.
CONNECT TO KNOWN
EARTH GROUND
A reading of 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected
before returning the unit to the owner.
4
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(
CONTROL AND FUNCTIONS
Front Panel
harman/kardon AVR70
D Information Display: This dis-
play delivers messages and status
indications to help you operate the
receiver. Refer to the separate dia-
gram for a complete explanation of
the
FL display.
fJ Remote Sensor Window: The
sensor behind this window receives
infrared signals from the remote con-
trol. Aim the remote at this area and
do not block or cover it unless an
external remote sensor is installed.
m AM/FM Tuner Mode Selection:
Press this button once to select the
tuner. Press it again to switch
between
FM, MW and LW.
19 CD: Press this button to select
the CD player.
Ill Tape1/Monitor: Press this button
to select Tape One as the input
source. A red LED above the button
will illuminate to indicate that the
Tape Monitor has been selected.
ll'I Tape2: Press this button to select
Tape
2.
6 Video Sources: Press any of
these buttons to select a video input
source.
E) Aux: Press this button to select
the source connected to the front
panel Aux jacks.
Ii] Display: Press this button to
turn off the front panel FL display.
The DISP indicator will illuminate
to remind you that the unit is still
turned on.
II!] OSD (On Screen Display):
Press the button briefly·to display a
system status report on your video
screen. Press and hold to change
the video standard.
WDelay: Press this button to
increase the delay to the rear (sur-
round) channels.
OoNLY
ml Mode: Press these buttons to
scroll up
""' or down T through the
list
of available surround modes.
mJ P-Set: Press these buttons to
manually scroll
up ""' or down T
through the FM, LW or AM stations
programmed into the receiver's pre-
set memory.
i!J P-Scan: Press this button to
automatically scan through the
FM
or AM stations preset into the receiv-
er's memory. Press the button again
to stop the scan when the tuner is at
the desired station.
ml Tune: Press these buttons to
manually scan up
""' or down T
through the FM or AM bands.
ml Mute: Press this button to cut the
output to the speakers. Press it
again
to return to the previous vol-
ume level.
i6 Volume Control: Turn the knob
clockwise to increase volume, coun-
terclockwise to decrease the vol-
ume. Note that approximately two
revolutions of the knob are required
to
go from no output to maximum
volume.
ml Power: press this button once to
turn the unit on or off. In order to use
the remote control to turn the unit on
the power switch must be pressed
once, and then the unit must be
turned off via the remote.
The LED
indicator light surrounding the power
switch
will glow amber when the unit
is in the Standby mode and green
when the unit is on.
ml Headphone Jack: Plug standard
stereo headphones into this jack for
private listening.
NOTE: When the headphones are in
use the output to the speakers is
muted and the surround mode is
automatically switched to STEREO.
When the headphones are removed
from the jack, sound to the speakers
is restored and the unit returns to the
previous sound mode.
Vol"""
Im,] Memo: The memo button is used
to enter stations to the tuner's preset
memory
in either the manual or auto-
matic modes. It is also used
in clear-
ing the memory and entering the
sleep timer period.
f:D Clear: The clear button is used
to cancel tuning, memory input or
when clearing the unit's memories.
PE FM Mode: Press this button
to select the tuning mode for
FM
stations.
~ RDS Display: When a station
transmitting RDS data is tuned,
press this button to view the tuning
frequency.
lmJ RDS AF: The button is used to
search for stations transmitting a
specific programme type that offers
better reception than the currently
tuned station.
f1ll RDS PTV: Press this button to
view the programme type (PTY)
when an RDS station is tuned. It is
also used to initiate a search for RDS
stations transmitting a specific pro-
gramme type.
p,m Bass: This knob adjusts the tone
of low frequency sounds. Turn it to
the right to boost bass frequencies
or to the left to cut bass frequencies.
ffi Treble: This knob adjusts
the tone of high frequency sounds.
Turn it to the right to boost high
frequencies or to the left to cut high
frequencies.
Im] Balance: This knob adjusts the
balance between the front left and
right speakers.
Im] Front Panel Inputs: Audio or
Video sources connected to these
jacks may be selected by pressing
the Aux button E).
Remote Control
O Use/Learn: This switch selects
the operation mode of the remote
control. Slide
it to the left for normal
operation. Slide it to the right when
the remote is being programmed.
8 Main Power: Press these
buttons to turn the unit on or off.
8 Source Selection: Pressing one
of these buttons selects the input
source that will be listened to
through the receiver. When a source
is selected the remote's transport
and numeric number buttons will
also transmit the commands needed
to control that machine.
8 Source Power: Press these but-
tons
to control power for the last
source device selected.
0 Surround Mode Selection:
Press one of these buttons to select
a surround mode for the current lis-
tening session.
0 Main Volume: These buttons
control the unit's volume. Note that
all channels are controlled simulta-
neously.
Learning
O TV Volume: These buttons
adjust the volume for
TV using the
remote control codes programmed
into the remote for a
TV set or cable
box. These buttons control the TV
set only, regardless of which source
is selected. This enables you to con-
trol the audio level of a
TV set even
when the receiver is not in use.
fi) Mute: Press this button to tem-
porarily cut the audio output of the
receiver. Press it again to return to
the previous volume level.
Cl) Transport Controls: These
buttons control the tape or disc
motion of the last playback source
selected with the Source Selection
buttons
8. Use them as you would
the
Play, Stop, Pause, Reverse Play
and Record buttons on any VCR, CD
or
LO remote control.
ct!) Tune/Search & Fast Forward:
(These buttons have multiple func-
tions, which vary according to the
input device selected.)
a. When the TUNER has been
selected, these buttons are used
to manually tune stations.
b. When CD, LD or VCR is the input
source, these buttons act as
the Fast Scan Forward ~
or Fast Scan Reverse ~
controls.
4D Channel/Skip: (These buttons
have multiple functions, which
vary according to the input device
selected.)
a. When the TUNER has been
selected, these buttons will scroll
up ~ or down ~ through
the stations that have been pro-
grammed
in the preset memory.
b. When TV or VCR is selected, they
are the channel up ~ or chan-
nel down ~ tuning buttons.
c. When CD or LD is selected these
buttons act as forward and
reverse "Skip" buttons to move to
the next track or chapter on the
disc.
d. When a compatible Harman
Kardon cassette player has been
selected as Tape 1
or Tape 2,
these buttons move the tape for-
ward ~ or backwards ~ to the
next selection using the Music
Scan feature.
@ Disc/Deck/Ant: (These buttons
have multiple functions, which
vary according to the input device
selected.)
a. V}lhen CD is selected and the unit
is a CD changer, these buttons
will change to the next disc +or
previous disc
-.
b. When Tape 1 or Tape 2 is the
input source, and the tape
machine is a compatible Harman
Kardon dual cassette deck, these
buttons will switch between the
"A" and "B" sides.
c. When VCR 1
or VCR 2 is the input
source, these buttons switch
between VCR and TV as the unit's
output.
d. When TV
is the input source,
these buttons may switch
qetween video input sources or
antenna/video, depending on the
TV model.
e. When LD is the input source,
these buttons will switch the side
being played from "A" to "B" on
compatible dual side players.
@ Number Keys: These buttons
serve as a ten button numeric key-
pad to enter tuner preset positions.
They are also to be used to select
channel numbers when
TV has been
selected on the remote, or to select
track numbers on a CD or
LO player,
depending on how the remote has
been programmed. The letters
below the buttons are used to enter
information for tuner station names.
NOTE: The Obutton has a dual func-
tion. It also serves as the CLEAR
button for use in programming the
tuner or clearing the system memory.
CD P-Scan: Press this button to
automatically scan through the sta-
tions preset into the tuner memory.
Press the button again to end the
scan when the tuner stops at the
desired station.
~ Memo: The memo button is used
to enter stations to the tuner's preset
memory
in either the manual or auto-
matic modes.
It is also used in the
process of clearing the memory.
~ Delay: This button controls the
amount of sound delay to the rear
(surround) channels. Press it to
increase the delay in the steps shown
in the main Information Display or
on-screen graphics.
CD Menu Controls: These buttons
control the action of the cursor or the
selection of menu items when the
receiver is being configured using
the setup menus.
~ Select: This button enters set-
tings to the receiver's memory dur-
ing system configuration.
@Screen Display: Press this but-
ton to activate the on screen menu
system.
@!) Panel Display: Press this button
to turn off all displays and indicators
in the Information Display except for
a small
DIS P indication in the
lower right corner of the display @
Press the button again to turn the
display back on. Note that the dis-
play will briefly illuminate when a
command is sent to the unit from the
front panel or remote, even though
the display is turned off.
fD Test Noise: Press this button to
begin calibration of the output level
for each channel. A test signal will
immediately be heard from the left
front speaker and the TEST indica-
tor@ will flash.
@ Speaker Select: When setting
the system output levels, this button
selects the speaker position being
adjusted. Press it once to advance
to the next speaker after each posi-
tion is adjusted.
@) Level Adjust: When setting the
system output levels, press these
buttons to increase or decrease the
output level.
tl) Sending LED: This indicator
should flash any time a button
is
pressed to confirm that a command
is being sent to the receiver or anoth-
er unit. If the light
is dim or does not
illuminate when a button is pressed
the batteries in the remote should be
replaced.
@) Learn LED: This indicator will
illuminate when a button on the
remote is being programmed with
signals from another remote during
the "learning" mode. The light will
go
out when the signal is received and
memorized.
@) RDS PTV: Press this button to
view the Programme Type informa-
tion for stations transmitting
RDS
data. This button is also used for
PTY Auto Search functions.
@ RDS AF: This button initiates a
search of all RDS stations to find a
stronger signal for the programme
type currently selected.
5
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CONTROL AND FUNCTIONS
Front Panel
harman/kardon AVR70
D Information Display: This dis-
play delivers messages and status
indications to help you operate the
receiver. Refer to the separate dia-
gram for a complete explanation of
the FL display.
f.l Remote Sensor Window: The
sensor behind this window receives
infrared signals from the remote con-
trol. Aim the remote at this area and
do not block or cover it unless an
external remote sensor
is installed.
I!) AM/FM Tuner Mode Selection:
Press this button once to select the
tuner. Press it again
to switch
between
FM, MW and LW.
El CO: Press this button to select
the CD player.
Ii) Tape1/Monitor: Press this button
to select Tape One as the input
source. A red
LED above the button
will illuminate to indicate that the
Tape Monitor has been selected.
Iii Tape 2: Press this button to select
Tape
2.
Ii Video Sources: Press any of
these buttons to select a video input
source.
Ii) Aux: Press this button to select
the source connected to the front
panel Aux jacks.
Ii] Display: Press this button to
turn off the front panel FL display.
The.DISP indicator will illuminate
to remind you that the unit is still
turned on.
ml 050 (On Screen Display):
Press the button briefly to display a
system status report on your video
screen. Press and hold to change
the video standard.
W Delay: Press this button to
increase the delay to the rear (sur-
round) channels.
VISllAU> rv LO VCR 12 AL/Xfilill~~@!rn ~
1:-:l.i PRO LOGI C ;,
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IE Mode: Press these buttons to
scroll up
.A. or down ,r through the
list of available surround modes.
IE] P-Set: Press these buttons to
manually scroll up
.A. or down ,r
through the FM, LW or AM stations
programmed into the receiver's pre-
set memory.
IE P-Scan: Press this button to
automatically scan through the
FM
or AM stations preset into the receiv-
er's memory. Press the button again
to stop the scan when the tuner is at
the desired station.
ml Tune: Press these buttons to
manually scan up ..., or down ,r
through the FM or AM bands.
Im Mute: Press this button to cut the
output to the speakers. Press it
again to return to the previous vol-
ume level.
ffi Volume Control: Turn the knob
clockwise to increase volume, coun-
terclockwise to decrease the vol-
ume. Note that approximately two
revolutions of the knob are required
to
go from no output to maximum
volume.
ml Power: press this button once to
turn the unit on or off. In order to use
the remote control to turn the unit on
the power switch must be pressed
once, and then the unit must be
turned off via the remote. The LED
indicator light surrounding the power
switch will glow amber when the unit
is In the Standby mode and green
when the unit is on.
ml Headphone Jack: Plug standard
stereo headphones into this jack for
private listening.
NOTE: When the headphones are
in
use the output to the speakers is
muted and the surround mode is
automatically switched to STEREO.
When the headphones are removed
from the jack, sound to the speakers
is restored and the unit returns to the
previous sound mode.
Im] Memo: The memo button is used
to enter stations to the tuner's preset
memory
in either the manual or auto-
matic modes. It
is also used in clear-
ing the memory and entering the
sleep timer period.
fll Clear: The clear button is used
to cancel tuning, memory input or
when clearing the unit's memories.
~ FM Mode: Press this button
to select the tuning mode for
FM
stations.
fJl RDS Display: When a station
transmitting
RDS data is tuned,
press this button to view the tuning
frequency.
f:m RDS AF: The button is used to
search for stations transmitting a
specific programme type that offers
better reception than the currently
tuned station.
f1il RDS PTY: Press this button to
view the programme type (PTY)
when an RDS station is tuned. It is
also used to initiate a search for RDS
stations transmitting a specific pro-
gramme type.
!ml Bass: This knob adjusts the tone
of low frequency sounds. Turn it to
the right to boost bass frequencies
or to the left to cut. bass frequencies.
f,i Treble: This knob adjusts
the tone of high frequency sounds.
Turn it to the right to boost high
frequencies or to the left to cut high
frequencies.
f:m Balance: This knob adjusts the
balance between the front left and
right speakers.
~ Front Panel Inputs: Audio or
Video sources connected to these
jacks may be selected by pressing
the Aux button Ii).
•[I
ONLY I
O Use/LE
the operati
control. Slii
operation.
the remote
f) Main F
buttons to
osourc,
of these bL
source tha
through
th,
is selectec
and numer
also transr
to control t
C,Sourc,
tons to cor
source
de
1
O SurroI
Press one
a surrounc
tening ses
0Mainl
control the
all channe
neously.
www.audiodna.sk

Remote Control
Sending
G,[.
ONLY
O Use/Learn: This switch selects
the operation mode ofthe remote
control. Slide it
to the left for normal
operation. Slide it to the right when
the remote
is being programmed.
8 Main Power: Press these
buttons
to turn the unit on or off.
@ Source Selection: Pressing one
of these buttons selects the input
source that will be listened to
through the receiver. When a source
is selected the remote's transport
and numeric number buttons will
also transmit the commands needed
to control that machine.
8 Source Power: Press these but-
tons to control power for the last
source device selected.
O Surround Mode Selection:
Press one of these buttons to select
a surround mode for the current lis-
tening session.
O Main Volume: These buttons
control the unit's volume. Note that
all channels are controlled simulta-
neously.
Learning
Learn
0
8 TV Volume: These buttons
adjust the volume for
TV using the
remote control codes programmed
into the remote for a
TV set or cable
box. These buttons control the
TV
set only, regardless of which source
is selected. This enables you to con-
trol the audio level of a
TV set even
when the receiver
is not in use.
O Mute: Press this button to tem-
porarily cut the audio output of the
receiver. Press ii again to return
to
the previous volume level.
Cl) Transport Controls: These
buttons control the tape or disc
motion of the last playback source
selected with the Source Selection
buttons
@. Use them as you would
the
Play, Stop, Pause, Reverse Play
and Record buttons on any
VCR, CD
or
LO remote control.
CD) Tune/Search & Fast Forward:
(These buttons have multiple func-
tions, which vary according to the
input device selected.)
a. When the TUNER has been
selected, these buttons are used
to manually tune stations.
b. When CD, LD or VCR is the input
source, these buttons act as
the Fast Scan Forward ..........
or Fast Scan Reverse ....,._
controls.
G) Channel/Skip: (These buttons
have multiple functions, which
vary according to the input device
selected.)
a. When the TUNER has been
selected, these buttons will scroll
YP -...i or down i..... through
the stations that have been pro-
grammed in the preset memory.
b. When TV or VCR is selected, they
are the channel up -...i or chan-
nel down ~ tuning buttons.
c. When CD or LD is selected these
buttons
act as forward and
reverse "Skip" buttons to move
to
the next track or chapter on the
disc.
d. When a compatible Harman
~ardon cassette player has been
l:]Ellected as Tape 1 or Tape 2,
toese buttons move the tape for-
ward ....i or backwards ,.... to the
riext selection using the Music
Scan feature.
4P) Disc/Deck/Ant: (These buttons
have multiple functions, which
vary according to the input device
selected.)
a. When CD is selected and the unit
is a CD changer, these buttons
will change to the next disc + or
previous disc -.
b. When Tape 1 or Tape 2 is the
input source, and the tape
machine is a compatible Harman
Kardon dual cassette deck, these
buttons will switch between the
"A" and "B" sides.
c. When VCR 1 or VCR 2 is the input
source, these buttons switch
between
VCR and TV as the unit's
output.
d. When TV is the input source,
ttiese buttons may switch
between video input sources or
antenna/video, depending on the
TV model.
e. When LD is the input source,
these buttons will switch the side
being played from "A" to "B" on
compatible dual side players.
G) Number Keys: These buttons
serve as a ten button numeric key-
pad to enter tuner preset positions.
They are also to be used to select
channel numbers when
TV has been
selected on the remote,
or to select
track numbers on a
CD or LD player,
depending on how the remote has
been programmed. The letters
below the buttons are used to enter
information for tuner station names.
NOTE: The Obutton has a dual func-
tion. It also serves as the CLEAR
button for use in programming the
tuner or clearing the system memory.
e, P-Scan: Press this button to
automatically scan through the sta-
tions preset into the tuner memory.
Press the button again to end the
scan when the tuner stops at the
desired station.
a, Memo: The memo button is used
to enter stations to the tuner's preset
memory
in either the manual or auto-
matic modes. It is also used
in the
process of clearing the memory.
~ Delay: This button controls the
amount of sound delayto the rear
(surround) channels. Press it to
increase the delay
in the steps shown
in the main Information Display or
on-screen graphics.
(D Menu Controls: These buttons
control the action of the cursor or the
selection of menu items when the
receiver
is being configured using
the setup menus.
«;) Select: This button enters set-
tings to the receiver's memory dur-
ing system configuration.
~ Screen Display: Press this but-
ton
to activate the on screen menu
system.
fii> Panel Display: Press this button
to turn off all displays and indicators
in the Information Display except for
a small DI
SP indication in the
lower right corner of the display @
Press the button again to turn the
display
back on. Note that the dis-
play will briefly illuminate when a
command is sent to the unit from the
front panel or remote. even though
the display is turned off.
9 Test Noise: Press this button to
begin calibration of the output level
for each channel. Atest signal will
immediately
be heard from the left
front speaker and the TEST indica-
tor 8 will flash.
@> Speaker Select: When setting
the system output levels, this button
selects the speaker position being
adjusted. Press it once to advance
to the next speaker after each posi-
tion is adjusted.
@) Level Adjust: When setting the
system output levels, press these
buttons to increase or decrease the
output level.
f.l) Sending LED: This indicator
should flash any time a button is
pressed to confirm that a command
is being sent to the receiver or anoth-
er unit.
If the light is dim or does not
illuminate when a button
is pressed
the batteries in the remote should be
replaced.
@> Learn LED: This indicator will
illuminate when a button on the
remote is being programmed with
signals from another remote during
the "learning" mode. The light will
go
out when the signal is received and
memorized.
fl;) RDS PTY: Press this button to
view the Programme Type informa-
tion for stations transmitting
RDS
data. This button is also used for
PTY Auto Search functions.
@, RDS AF: This button initiates a
search of all
RDS stations to find a
stronger signal for the programme
type currently selected.
5
www.audiodna.sk

6
Rear Panel - Audio and System Connections
~~rn ~•
co~~w ~w
8 FM Antenna: Connect an indoor
or external
FM antenna to these
terminals.
© AM Antenna: Connect the AM
loop antenna supplied with the
receiver to these terminals. If an
external AM antenna is used, make
connections to the
AM and GND
terminals in accordance with the
instructions supplied with the
antenna.
@ Tape 1 Out: Connect these jacks
to the RECORD/INPUT jacks
of an
audio recorder.
@ Tape 1 In: Connect these jacks to
the PLAY/OUT jacks of an audio
recorder.
@ Tape 2 Out: Connect these jacks
to the RECORD/INPUT jacks of a
second audio recorder.
O Tape 2 In: Connect these jacks to
the PLAY/OUT jacks of a second
audio recorder.
@ CD IN: Connect these jacks to
the output of a compact disc player
or CD changer.
CD Front R: Connect these terminals
to the front right speaker.
O Front L: Connect these terminals
to the front left speaker.
8 Center: Connect these terminals
to the center speaker.
(3 Surround R: Connect these ter-
minals to the right surround speaker.
8 Surround L: Connect these ter-
minals to the left surround speaker.
e Pre-Outs: If external power
amplifiers are used for any channels,
connect these jacks to
the inputs of
the amplifier.
G) Subwoofer Pre-Out: Connect
this jack to the line level input of a
powered subwooter. It
an external
subwoofer amplifier is used, connect
this jackto the subwoofer amplifier
input.
@ Remote IR Out: This connection
permits the
IR sensor in the receiver
to serve other remote controlled
devices. Connect this jack to
the "IR
IN" jack
on Harman Kardon orother
compatible equipment.
(» Remote IR In: If the AVR70's
front panel
IR sensor is blocked due
to cabinet doors or other obstruc-
tions, an external
IR sensor may be
used. Connect the output of the sen-
sor
to this jack.
OONLY
® Unswitched AC Outlet: This out-
let may
be used to power any AC
device. The power will remain on at
this outlet regardless
of whether the
AVR70
is on or off.
4i} Switched AC Outlet: This outlet
may
be used to power any device
that you wish to have on when the
unit is turned on.
NOTE: The power consumption of
the device plugged into each
of
these outlets should not exceed 120
watts.
@) Power Cable: Connect the AC
plug to a non-switched AC wall
output.
Rear Panel - Video Connections
r.::, VCR 1 Audio In: Connect these
jacks to the audio PLAY/OUT jacks
of a VCR.
(D VCR 1 Audio Out: Connect
these jacks to the RECORD/IN audio
jacks of a
VCR.
[ii VCR 1 Video In: Connect this
jack to the composite video
PLAY/OUT jacks of a
VCR.
Ii] VCR 1 Video Out: Connect this
jack to the composite video
RECORD/IN jacks of a
VCR.
(I VCR 1 S Video Out: Connect this
jack to the "S" video RECORD/IN
jacks of a
VCR.
Cl VCR 1 S Video In: Connect this
jack to the "S" video RECORD/IN
jacks of a
VCR.
Infonnation Display
l@(Q) ...
e(Q)' .. ,
(Q)@ 0 ...
' '
[!I VCR 2 Audio In: Connect these
jacks to the audio jacks PLAY/OUT
of a second VCR.
G] VCR 2 Audio Out: Connect
these jacks to the audio RECORD/IN
jacks
of a second VCR.
D VCR 2 Video In: Connect this
jack to the composite video
PLAY/OUT
Jacks of a second VCR
I!) VCR 2 Video Out: Connect this
jack to the composite video
RECORD/IN jacks of a second
VCR.
[3 TV Audio In: Connect the audio
outputs of a
TV, cable converter or
satellite receiver to these jacks.
1J1 TV Video In: Connect the com-
posite video output of a
TV, cable
converter or satellite receiver to this
jack. The signals received at this
jack are also used to trigger the
"TV Auto-On" feature.
~
:AIJOUlLr15111N«lW
IS
~ LO Audio In: Connect the audio
output of a laser disc player
to these
jacks.
ID LD Video In: Connect the com-
posite video output of a laser disc
player to this jack.
[E LO S Video In: Connect the "S"
video output
of a laser disc player to
this jack.
BJ TV Monitor Video Out: Connect
this jack to the composite video
input of a
TV monitor or video pro-
jector to view the on screen control
menus and output of the receiver's
video switcher.
[!I TV Monitor S Video Out:
Connect this jack to the S video
input
of a TV monitor or video pro-
jector to view S video sources
selected by the receiver's video
switcher.
0 "Visual" Indicator: These indica-
tors display which input source is
being
led to the video monitor output.
@ Test: This indicator flashes when
the output levels are being set using
the built in test signal generator.
0 Stereo: This indicator lights
when an
FM station is broadcasting
in stereo.
@ Volume Indication: The last two
indicators on the information display
indicate the volume level. Note that
OdB is the reference level, not an
indication that there is no
output
0 Main Information Display: This
ten digit display shows messages
relating to the status, input source,
surround mode,
tuner, volume level or
other aspects of the unit's operation.
@ Auto Memo: This indicator flash-
es when the tuner is automatically
scanning for stations
and entering
them into the preset memory,
@) Memo: This indicator flashes
when the
Memo button is pressed
when entering presets and other
information into the tuner's memory.
E) Auto: This indicator signifies that
the Automatic Tuning mode is in use
for
FM broadcasts.
0 Tuned: This indicator lights when
an AM
or FM station is properly
tuned and locked.
(;) Tuner Frequency Indication:
When the tuner is in use, the main
Information Display will show the
preset channel number, if
any, the
frequency band
and the station fre-
quency. Indicators at the right side
of the display show
kHz when an LW
or MW station is tuned or MHz when
an FM station is tuned.
@ DISP: This indicator lights when
the
FL display has been turned
off using the Display button
ml to
remind you that the unit is still
turned
on.
G) P•Scan: This indicator flashes
when the stations programmed into
the tuner memory are being auto-
matically reviewed.
@ Mode Status: These indicators
display the currently selected
surround mode.
G, Signal Level Indication: This is
a visual indication of the strength of
a radio station signal. The more bars
visible, the stronger the station.
(
www.audiodna.sk

6
Rear Panel - Audio and System Connections
Q FM Antenna: Connect an indoor
or external FM antenna to these
terminals.
© AM Antenna: Connectthe AM
loop antenna supplied with the
receiver to these terminals. If an
external AM antenna is used, make
connections to the
AM and GND
terminals in accordance with the
instructions supplied with the
antenna.
(i Tape 1 Out: Connect these jacks
to the RECORD/INPUT jacks of an
audio recorder.
@ Tape 1 In: Connect these jacks to
the PLAY/OUT jacks
of an audio
recorder.
@ Tape 2 Out: Connect these jacks
to the RECORD/INPUT jacks of a
second audio recorder.
OTape 2 In: Connect these jacks to
the PLAY/OUT jacks
of a second
audio recorder.
@ CD IN: Connect these jacks to
the output of a compact disc player
or CD changer.
G) Front R: Connect these terminals
to the front right speaker.
O Front L: Connect these terminals
to the front left speaker.
tD Center: Connect these terminals
to the center speaker.
43 Surround R: Connect these ter-
minals to the right surround speaker.
(t Surround L: Connect these ter-
minals to the left surround speaker.
GI Pre-Outs: If external power
amplifiers are used for any channels,
connect these jacks to the inputs of
the amplifier.
tD Subwoofer Pre-Out: Connect
this jack to the line level input of a
powered subwoofer. If an external
subwoofer amplifier is used, connect
this jack
to the subwoofer amplifier
input.
@ Remote IR Out: This connection
permits the
IR sensor in the receiver
to serve other remote controlled
devices. Connect this jack to the
"IR
IN" jack on Harman Kardon or other
compatible equipment.
6) Remote IR In: If the AVR70's
front panel IR sensor is blocked due
to cabinet doors
or other obstruc-
tions, an external IR sensor may be
used. Connectthe output of the sen-
sor to this jack.
41!)0NLV
@ Unswitched AC Outlet: This out-
let may be used to power any AC
device. The power will remain on at
this outlet regardless of whether the
AVR?0
is on or off.
(j) Switched AC Outlet: This outlet
may
be used to power any device
that you wish to have on when the
unit is turned on.
NOTE: The power consumption of
the device
plugged into each of
these outlets should not exceed 120
watts.
@ Power Cable: Connect the AC
plug to a non-switched AC wall
output. 0
"Visual" lndlea
tors displaywhich i
being fed to the vie
@Test: This indic
the output levels
ar
the built in test sigr
@) Memo: This Ind
when the Memo bl
when enteringpre,
information Int¢ the
E) Auto: This indic
the Automatic TunlI
for FM broadcasts.
0 Tuned: This inc
an AM or
FM statio
tuned and locked.
www.audiodna.sk

Rear Panel - Video Connections
[i1 VCR 1 Audio In: Connect these
jacks
to the audio PLAY/OUT jacks
of a
VCR.
I!] VCR 1Audio Out: Connect
these jacks
to the RECORD/IN audio
jacks of a
VCR.
DJ VCR 1 Video In: Connect this
jack to the composite video
PLAY/OUT jacks of a
VCR.
(D VCR 1 Video Out: Connect this
jack to the composite video
RECORD/IN jacks of a
VCR.
GI VCR 1 S Video Out: Connect this
jack to the "S" video RECORD/IN
jacks of a
VCR.
GI VCR 1 S Video In: Connect this
jack to the "S" video RECORD/IN
jacks of a
VCR.
Infonnation Display
00 VCR 2 Audio In: Connect these
jacks to the audio jacks PLAY/OUT
of a second
VCR.
GI VCR 2 Audio Out: Connect
these jacks to the audio RECORD/IN
jacks of a second
VCR.
D VCR 2 Video In: Connect this
jack
to the composite video
PLAY/OUT jacks of a second
VCR.
II VCR 2 Video Out: Connect this
jack
to the composite video
RECORD/IN jacks of a second
VCR.
13 TV Audio In: Connect the audio
outputs of a
TV, cable converter or
satellite receiver to these jacks.
[I TV Video In: Connect the com-
posite video output of a
TV, cable
converter or satellite receiver
to this
jack. The signals received at this
jack are also used to trigger the
"TV Auto-On" feature.
M:.00Tl.US[l2e/&llr!
[]
Ul
ml LO Audio In: Connect the audio
output of a laser disc player to these
jacks.
11] LO Video In: Connect the com-
posite video output of a laser disc
player to this jack.
[!] LO S Video In: Connect the "S"
video output of a laser disc player to
this jack.
Iii TV Monitor Video Out: Connect
this jack to the composite video
input of a
TV monitor or video pro-
jector to view the on screen control
menus and output of the receiver's
video switcher.
[!I TV Monitor S Video Out:
Connect this jack to the S video
input of a
TV monitor or video pro-
jector to view S video sources
selected
by the receiver's video
switcher.
I STEREO I
dB
kHz-
MHz
Jal" Indicator: These indica-
)lay which input source
is
d to the video monitor output
:This indicator flashes when
ut levels are being set using
in test signal generator.
0 Stereo: This indicator lights
when
an FM station is broadcasting
in stereo.
@ Volume Indication: The last two
indicators on the information display
indicate the volume level. Note that
□ dB is the reference level, not an
indication that there is no output.
0 Main Information Display: This
ten digitdisplay shows messages
relating to the status, input source.
surround mode,
tuner, volume level or
other aspects of the unit's operation.
@Auto Memo: This indicator flash-
es when the tuner is automatically
scanning for stations and entering
them into the preset memory.
10: This indicator flashes
e
Memo button is pressed
1terlng presets and other
ion into the tuner's memory.
,: This indicator signifies that
,matic Tuning mode is in use
,roadcasts.
id: This indicator lights when
1r FM station is properly
ld locked.
0 Tuner Frequency Indication:
When the tuner is in use, the main
Information Display will show the
preset channel number, if
any, the
frequency band and the station fre-
quency. Indicators at the right side
of the display show
kHz when an LW
or MW station is tuned or MHz when
an FM station is tuned.
@ DISP: This indicator lights when
the
FL display has been turned
off using the Display button
ml to
remind you that the unit is still
turned on.
(I) P•Scan: This indicator flashes
when the stations programmed into
the tuner memory are being auto-
matically reviewed.
(i) Mode Status: These indicators
display the currently selected
surround mode.
G) Signal Level Indication: This is
a visual indication of the strength of
a radio station signal. The more bars
visible, the stronger the station.
www.audiodna.sk

(
SERVICE PROCEDURE
1. Tracking point memory
This service procedure can be used for measurement of the tuner circuit.
With the POWER ON, press the "PRESET
LIP" button while pressing the "MEMO" button for at
least 3 seconds or more.
FLO will display "TRACKING". Frequencies will be memorized as
follows:
VERSION P1
FM 90.0
SCAN STEP
PS PS P7
P8 P9
P10 P11 P12~
P30
10 KHz 600.0
1000. 0 1400.0 520.0
+-
4-
+- +-
MW
9 KHz 603.0 999.0 1404.0 531.0
4-
+- +- +-
LW t t t
171. 0 207.0 270.0 152.0
531. 0
2. FLD segment luminous
This service procedure will illuminate all segments by the following steps :
With the POWER ON, press the "FM/AM(TUNER)" button while pressing the "MEMO" button
for at least three seconds
or more. This procedure takes 1 minute and 40 seconds to finish; at this
point the procedure is complete.
1. All segments will be illuminated for 5 seconds.
2. At the grid "1 G", segments are illuminated in the following order :
CD KHz -+ CV MHz -+ @ R -+ @ PEAK -+ @ L -+ @ MULTI -+ (j) MONO -+ @ MATRIX -+
®
HALL -+ ® P-SCAN -+ (1)) TAPE -+ @ COPY -+ @) VCR1 -+ @ SLEEP -+ ®) DISP -+ @ TX
3. At the grid "2G", to "11G", each one segment is illuminated individually.
4. At the grid "12G", segments are illuminated in the following order:
CD VISUAL-+ CV SIGNAL LEVEL-+ Q) CH-+@ SIGNAL BAR (LEFT SIDE)
@ SIGNAL BAR (2nd LEFT) -+@ SIGNAL BAR (CENTER) -+ (j) SIGNAL BAR (2nd RIGHT) -+
@
SIGNAL BAR (RIGHT SIDE) -+®STEREO-+ ® THX CINEMA-+ (1)) PRO.LOGIC-+
® MOVIE-+@) AUTO MEMO-+@ 3.LOGIC-+ ®) SIMUL'D-+ @SURROUND
3. Selector check mode
This service program automatically operates input selector and surround mode by the following
procedure. This service program continually repeats until power is shut off.
When the POWER ON, press the "SURROUND MODE+" button while pressing the "MEMO" button
3 seconds or more.
STEP INPUT DSP
FM MODE FREQUENCY COPY SWITCH NOTES
SELECTOR MODE BAND TAPE VCR1
1
FM STEREO AUTO 98.0 SOURCE SOURCE
2
FM
STEREO MONO LAST t t
3 CD STEREO AUTO LAST t t
4 TAPE1 P-LOGIC AUTO LAST TUNER SOURCE TUNER-ON
5 TAPE2 MOVIE AUTO LAST SOURCE TV
6
TV
3CH AUTO LAST t SOURCE
7 TV HALL AUTO LAST CD
LO
8
LO MATRIX AUTO LAST TAPE2 TV
9
VCR1
MATRIX AM/MW 1000/999 TUNER VCR2
10 VCR2 STEREO AUTO 98.0 TUNER SOURCE TUNER-ON
11
AUX STEREO AUTO LAST SOURCE AUX
4. All clear
This service program can clear all memorized operations and functions.
When the POWER ON, press the "CLEAR" button while pressing the "MEMO" button 3 seconds or
more.
FLO shows "CLEAR MEMO" and power will be OFF.
TEST EQUIPMENT REQUIRED
1) AM/FM Signal Generator
2) Video Signal Generator
3) Digital Multimeter
4) Distortion level meter
ALIGNMENT PROCEDURES
1. FM MONO. Distortion Adjustment
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
500 uV/m (54 dB/m)
Signal generator output to MONO 1
KHz/
98MHz
Distortion level
1 FM antenna terminal. (75
98MHz
Dev.40KHz 53.3% $ (P2) L201
Minimum
ohm) MONO
1KHz/ at TAPE-OUT
Dev. 75KHz 100%
~
I
I
2. FM Muting Level Adjustment
I
Tum variable resistor R212 and stop at position "TUNED" is not shown (not indicated), then again tum the
variable resistor R212 to the opposite revolution and stop at a position
'1TIJNED" is shown.
I
!
Step Input Signal Source Signal Source Signal Outpul Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
10 uV/m (20 dB/m)
Signal generator output to MONO 1
KHz/
98MHz
"TUNED"
1 FM antenna terminal. (75
98MHz
Dev.40KHz 53.3% & (P2) R212 indicate on FLD
ohm) MONO
1KHz/
Dev. 75KHz 100% 4D
-2 Over mentioned level AUTO SCAN Only Confirm "TUNED"
+3dB
indicate on FLD
3. FM STEREO Distortion Adjustment
Adjust the L channel with the RF signal modulated only L channel first and confirm the R channel with the RF signal
modulated only R channel.
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
500 uV/m (54 dB/m)
Signal generator output to L+R
1KHz/
98 MHz
IFCOIL
Distortion level
1 FM antenna terminal. (75
98MHz
Dev. 40KHz 53.3% (P2) in Minimum
ohm) PILOT 19KHz / FRONT END at TAPE-OUT
Dev.
6KHz8%
•
-L+R 1KHz/ Distortion level
Dev. 67.SKHz 90%
2 PILOT 19KHz/ R218 Minimum
Dev. 6.75KHz 9% G at TAPE-OUT
REMARK: Adjustment with R128 is not necessary when the distortion level is less than 0.5% with adjusting IF coil.
4. FM STEREO Separation Adjustment
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
Signal generator output to
same specification as Output level
FM STEREO distortion 98MHz
Minimum
1 FM antenna terminal. (75
98MHz
adjustment. (P2)
R211
at TAPE-OUT
ohm) Input only L channel.
channelR
-same specification as Output level
98MHz
FM STEREO distortion 98 MHz
R211
Similar as Reh
2 adjustment. (P2) at TAPE-OUT
Input only R channel.
channelL
7
www.audiodna.sk

SERVICE PROCEDURE
1. Tracking point memory
This service procedure can be used for measurement of the tuner circuit.
With the
POWER ON, press the "PRESET UP" button while pressing the "MEMO" button for at
least 3
seconds or more. FLO will display "TRACKING". Frequencies will be memorized as
follows:
VERSION
FM
SCAN STEP
P5 PS P7 PB
pg
PlO Pll
P12~
P30
10 KHz 600.0
1000.0 1400.0
520.0
+- +- +- +-
MW 9 KHz 603.0 999.0
1404.0
531.0
+-
+-
+- +-
LW t t t 171.0 207.0
270.0 152.0 531.0
2. FLD segment luminous
This service procedure will illuminate all segments by the following steps :
With
the POWER ON, press the "FM/AM(TUNER)" button while pressing the "MEMO" button
for at least three seconds or more. This procedure takes 1 minute and 40 seconds to finish; at this
point the procedure is complete.
1. All
segments will be illuminated for 5 seconds.
2. At
the grid "1G", segments are illuminated in the following order:
CD KHz-+ (2) MHz-+@ R-+@ PEAK-+@ L-+@ MULTI -+ (J) MONO-+@ MATRIX-+
® HALL -+ @ P-SCAN -+ 11) TAPE -+ @ COPY -+ @) VCRl -+ @ SLEEP -+ ® DISP -+ ® TX
3. At the grid "2G", to "11 G", each one segment is illuminated individually.
4. At the grid "12G", segments are illuminated in
the following order:
CD VISUAL-+ (2) SIGNAL LEVEL-+@ CH-+@ SIGNAL BAR (LEFT SIDE) -+
@
SIGNAL BAR (2nd LEFT) -+@ SIGNAL BAR (CENTER) -+ (J) SIGNAL BAR (2nd RIGHT) -+
@ SIGNAL BAR (RIGHT SIDE) -+@STEREO-+@ THX CINEMA-+ 11) PRO.LOGIC-+
@ MOVIE-+@) AUTO MEMO-+@ 3.LOGIC-+ ® SIMUL'D-+ ®SURROUND
3. Selector check mode
This service program automatically operates input selector and surround mode by the following
procedure.
This service program continually repeats until power is shut off.
When the POWER ON, press the "SURROUND MODE+" button while pressing the "MEMO" button
3
seconds or more.
STEP INPUT DSP
FM MODE FREQUENCY COPY SWITCH NOTES
SELECTOR MODE BAND TAPE
VCR1
1 FM STEREO
AUTO 98.0 SOURCE SOURCE
2 FM
STEREO
MONO LAST t t
3 CD STEREO AUTO LAST t t
4 TAPE1 P-LOGIC AUTO LAST TUNER SOURCE TUNER-ON
5
TAPE2 MOVIE AUTO LAST
SOURCE TV
6 TV 3CH AUTO LAST t SOURCE
7 TV HALL AUTO LAST CD LD
8
LO MATRIX AUTO LAST TAPE2
TV
9 VCR1 MATRIX AM/MW 1000/999 TUNER VCR2
10
VCR2
STEREO AUTO 98.0 TUNER SOURCE TUNER-ON
11
AUX STEREO AUTO LAST SOURCE AUX
4. All clear
This service program can clear all memorized operations and functions.
When the POWER ON, press the "CLEAR" button while pressing the "MEMO" button 3 seconds or
more. FLO shows "CLEAR MEMO" and power will be OFF.
www.audiodna.sk

TEST EQUIPMENT REQUIRED
1) AM/FM Signal Generator
2) Video Signal Generator
3) Digital Multimeter
4) Distortion level meter
ALIGNMENT PROCEDURES
1. FM MONO. Distortion Adjustment
Step
Input Signal Source Signal
Source Signal Outpu~ Level Reception
Adjustment Adjustment
Connection
Frequency
and Modulation
Frequency
Point Value
!
500 uV/m (54 dB/m)
Signal generator output to MONO 1
KHz/
I 98 MHz Distortion level
1
FM antenna terminal. (75 98MHz
Dev.40KHz 53.3% • (P2)
L201 Minimum
ohm) MONO
1KHz/
I at TAPE-OUT
Dev. 75KHz 100% •
I
2. FM Muting Level Adjustment
Turn variable resistor R212 and stop at position "TUNED" is not shown not indicated), then again turn the
variable resistor
R212 to the opposite revolution and stop at a position'
TUNED" is shown.
Step
Input Signal Source Signal Source Signal Outpu Level
Reception Adjustment Adjustment
Connection
Frequency
and ModulatiOI
Frequency Point Value
10 uV/m (20 dB/m)
Signal generator output to MONO 1
KHz/
98 MHz "TUNED"
1
FM antenna terminal. (75 98MHz
Dev.40KHz 53.3% 0 (P2) R212 indicate on FLD
ohm) MONO
1KHz/
Dev. 75KHz 100% •
-2 Over mentioned level AUTO SCAN Only Confirm
"TUNED"
+3dB ' indicate on FLD
3. FM STEREO Distortion Adjustment
Adjust the L channel with the RF signal modulated only L channel first and confirm the Rchannel with the RF signal
modulated only R
channel.
Step
Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection
Frequency and Modulation Frequency Point Value
500 uV/m (54 dB/m)
Signal generator output to L+R
1KHz/
98MHz
IFCOIL Distortion level
1
FM antenna terminal. (75
98MHz
Dev. 40KHz 53.3% (P2)
in Minimum
ohm) PILOT 19KHz / FRONT END at TAPE-OUT
Dev.
6KHz8%
0
-L+R
1KHz/
Distortion level
2 Dev. 67.5KHz 90% R218 Minimum
PILOT 19KHz /
Dev. 6.75KHz 9% G atTAPE-OUT
REMARK: Adjustment with R128 is not necessary when the distortion level is less than 0.5% with adjusting IF coil.
4. FM STEREO Separation Adjustment
Step
Input Signal Source Signal
Source Signal Output Level
Reception
Adjustment Adjustment
Connection
Frequency
and Modulation Frequency
Point Value
Signal generator output to same specification as Output level
FM STEREO distortion 98MHz
Minimum
1
FM antenna terminal. (75 98 MHz
adjustment.
(P2)
R211
at TAPE-OUT
ohm) Input only L channel. channelR
-same specification as Output level
98 MHz
FM STEREO distortion 98 MHz
R211
Similar as Reh
2
adjustment.
(P2) at TAPE-OUT
Input only R channel.
channelL
7
www.audiodna.sk

8
5. AM IF Adjustment
Step
Input Signal Source
Signal
Source Signal Output Level
Reception
Adjustment
Adjustment
Connection Frequency
and Modulation
Frequency
Point
Value
Signal generator output to 999 KHz Output level
G) (Lor A)
1 transmission
'loop antenna. 1000 KHz 300 uV/m (50 dB/m) Tuning point LA06
Maximum
(':Standard required loop) • at TAPE-OUT
This adjustment is normally not necessary, because the coil LA06
is preset by the original supplier.
6. AM Tracking Adjustment (MW)
Step
Input Signal Source Signal
Source Signal Output Level Reception Adjustment
Adjustment
Connection
Frequency and Modulation Frequency
Point
Value
Signal generator outputto
603KHz
603 KHz Output level
G)
Level 300 • 400 uV/m
G)
(Lor A)
1 transmission *loop antenna.
600KHz
Mod. 400 Hz 30%
600KHz
LA01
Maximum
(*:Standard required loop) • • at TAPE-OUT
-1404 KHz 1404KHz Output level
2
G) Level 300 • 400 uV/m G)
CA01
(LorR)
1400KHz Mod. 400 Hz 30% 1400KHz
Maximum
CD
CD
at TAPE-OUT
3 Repeat step 1 and 2 until level is
at maximum reading.
7. AM Tracking Adjustment (LW)
Step
Input Signal Source Signal
Source Signal Output Level
Reception
Adjustment Adjustment
Connection Frequency
and Modulation
Frequency Point Value
Signal generator output to Output level
Level 300 • 400 uV/m
(Lor A)
1 transmission *loop antenna. 171 KHz Mod. 400 Hz 30%
171 KHz LA03
Maximum
(*:Standard required loop) at TAPE-OUT
-
Outpu1 level
2 270 KHz Level 300 • 400 uV/m
270KHz CA08
(Lor A)
Mod. 400 Hz 30%
Maximum
atTAPE-OUT
3 Repeat step 1 and 2 until level is at maximum reading.
8. AM auto stop Adjustment
Step
Input Signal Source Signal
Source Signal Output Level Reception Adjustment Adjustment
Connection
Frequency and Modulation
Frequency
Point
Value
Signal generatoroutput to
999 KHz 999 KHz
• •
"TUNED"
1 transmission *loop antenna.
1000KHz
500 uV/m (54 dB/m)
1000KHz
RA11
indicate on FLO
(*:Standard required loop)
CD
•
-
2 1000uV/m (60 dB/m) AUTO SCAN Only Confirm
"TUNED"
indicate on FLO
REMARK: This adjustment is related tothe FM muling Level Adjustment. The FM muting Level re-adjustment is necessary
after this adjustment.
9. On Screen Display VCO Adjustment
Step
Input Signal Source
Measuring
Measuring equipment
Input selector
Adjustment Adjustment
and Connection position
Point
Value
Color bar or other standard
ICQX60
1 video signal.
26pinand
OCvoltmeter
LO
CX67 2.5V +-0.1V
Video signal generatoroutput GND. (Impedance> 10K ohmN)
to
LO video input.
REMARK: Connect the TV monitorto the monitor output terminal of th~ product.
10. Main amp Idling current adjustment
1) With the power OFF, set semi -fixed resistor R7 43
(Leh), R744 (Reh), R786 (Center ch) on the PC
board (PV04) to the center position.
2) Connect a digital voltmeter, set for the DC range,
on the emitter resistor [R759 (Leh), R760 (Reh),
R794 (Center ch)]
on the PC board (PV04).
3) After the above, adjust the idling current as follows:
Turn the power ON and adjust semi fixed resistor
R743 (Leh), R744 (Reh), R786 (Center ch) while
observing the digital multimeter indication.
The target value is 7.2 mV (20 mA).
All values are with no load on speaker terminals, volume
set to minimum and no input with the unit switched to the
CD position. Always allow the amplifier to stabilize for 1O
minutes orlonger prior to adjusting idle current.
11. Main amp DC offset adjustment
1) With the power OFF, connect a digital voltmeter, set
for the
DC range, to the speakerterminal.
2) After the above, adjust the DC offset as follows:
Turn the power
ON and adjust AN63 (Leh), RN64
(Reh), RN70 (Center ch} so that the output
is ±20
mV.
(
(
www.audiodna.sk

8
5. AM IF Adjustment
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
Signal generator output to
999 KHz Output level
•
(LorR)
1 transmission *loop antenna. 1000 KHz 300 uV/m
(50 dB/m) Tuning point LA06 Maximum
(*:Standard required loop) •
atTAPE-OUT
This adjustment is normally not necessary, because the coil LA06 is preset by the original supplier.
6. AM Tracking Adjustment (MW)
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
Signal generator output to 603 KHz 603 KHz Output level
• Level 300 -400 uV/m •
(LorR)
1 transmission *loop antenna. 600 KHz Mod. 400
Hz 30% 600 KHz LA01 Maximum
(*:Standard required loop) e •
atTAPE-OUT
-1404 KHz 1404 KHz Output level
2 • Level 300 -400 uV/m • CA01
(LorR)
1400 KHz Mod. 400
Hz 30% 1400 KHz Maximum
e e
atTAPE-OUT
3 Repeat step 1 and 2 until level is at maximum reading.
7. AM Tracking Adjustment (LW)
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
Signal generator output to
Output level
Level 300 -400 uV/m
(LorR)
1 transmission *loop antenna.
171 KHz Mod. 400
Hz 30%
171 KHz LA03 Maximum
(*:Standard required loop)
atTAPE-OUT
-Output level
2 270 KHz Level 300 -400 uV/m 270 KHz
CAOB
(Lor R)
Mod. 400 Hz 30% Maximum
at TAPE-OUT
3 Repeat step 1 and 2 until level is at maximum reading.
8. AM auto stop Adjustment
Step Input Signal Source Signal Source Signal Output Level Reception Adjustment Adjustment
Connection Frequency and Modulation Frequency Point Value
Signal generator output to
999 KHz 999 KHz
• • "TUNED"
1 transmission *loop antenna. 1000 KHz 500 uV/m (54 dB/m) 1000 KHz
RA11
indicate on FLD
(*:Standard required loop) e e
-
2 1000 uV/m
(60 dB/m) AUTO SCAN Only Confirm "TUNED"
indicate on FLD
REMARK: This adjustment is related to the FM muting Level Adjustment. The FM muting Level re-adjustment is necessary
after this adjustment.
9. On Screen Display VCO A~justment
Step Input Signal Source Measuring Measuring equipment Input selector Adjustment Adjustment
and Connection position Point Value
Color bar orother standard IC QX60
1 video signal. 26pin and DC voltmeter LD CX67 2.5V +-0.1V
Video signal generator output GND. (Impedance> 10K
ohmN)
to LD video input.
REMARK: Connect the TV monitor to the monitor output terminal of thE; product.
www.audiodna.sk

10. Main amp idling current adjustment
1) With the power OFF, set semi -fixed resistor R743
(Leh), R744 (Reh), R786 (Center ch} on the PC
board (PV04} to the center position.
2) Connect a digital voltmeter, set for the
DC range,
on the emitter resistor [R759 (Leh), R760
(Reh},
R794 (Center ch)] on the PC board (PV04).
3) After the above, adjust the idling current as follows:
Turn the power
ON and adjust semi -fixed resistor
R743 (Leh}, R744 (Reh}, R786 (Center
ch) while
observing the digital multimeter indication.
The target value is 7.2
mV (20 mA).
All values are with no load on speaker terminals, volume
set to minimum and
no input with the unit switched to the
CD position. Always allow the amplifier to stabilize for 10
minutes or longer prior to adjusting idle current.
11. Main amp DC offset adjustment
1) With the power OFF, connect a digital voltmeter, set
for the
DC range, to the speaker terminal.
2) After the above, adjust the DC offset as follows:
Turn the power
ON and adjust RN63 (Leh), RN64
(Reh}, RN70 (Center
ch) so that the output is ±20
mV.
(
(
www.audiodna.sk

ALIGNMENT AND TEST POINTS
RN70
~
RN64
~
RN63
~
R794 R760 R759
lo
0
ol
I0 0 0 I
jo
0
o!
R786
R744 R743
~ ~
~
IDL. ADJ
IDL. ADJ
IDL, ADJ
(
PL04
PI04
AIOI
JIOI
RAIi
~
R218
~
CX67
L201
@
R21 I ~
~
OSD ADJ
30 16
R906
[;]
~
QX60 I
~
I 15
LA03
LAOS
CAOS~
R212
@@
~
CA01@I@ ILAOI
9
www.audiodna.sk

ALIGNMENT AND TEST POINTS
RN70
~
R794
I0 0
oi
E
R786
[iJ
IDL. ADJ
PL04 F
CX67
@
OSD ADJ 30;;.:_ ___ ....;l..:..G
f OX60 I
I 15
www.audiodna.sk

RN64
~
RN63
~
R760 R759
I0 0 0 I
lo
0
ol
R744 R743
~
[j]
IDL. ADJ
IDL, ADJ
PI04
AIOI
JIOI
RAIi
~
R218
~
L201
R211
~
~
R906
[;J
~
LA03
LAOG
CA080
R212
@@
~
CA01@] (g ILAOI
9
www.audiodna.sk

10
CIRCUIT DESCRIPTION
1. SURROUND CIRCUIT
This model incorporates a surround processor circuit that provides 6 types of the surround sound. Fig. 1-1 is a block
diagram of the surround processor circuit.
The microprocessor transfers the data to the parameter control ( Serial data, Serial clock, Request Ready ) to operate the
circuits in each mode.
L
R
Q608
AK5340
Q601 (LC83016E)
PROGRAM ROM SUB ROUTINE
--- 1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -I
I
INPUT
DATA
I DE-
I emphasis
I
I
I
AUTO
INPUT
Balance
Adaptive
MATRIX L,.....!:::::::::;:r===;r-;=:::L:-,
L _________________ _
-----------
0603
DRAM
64k x 4bit
C
s
Q602 (LC83017JE)
DE-
Correlate R
Q607
QV06
LC78213
( Block diagram of the surround processor circuit. )
Fig.
1-1
(1) Stereo
Set to this mode to listen to ordinary stereo sound.
The rear
L/R and center outputs will be muted.
0706 TC9215P
SOURCEL
OUTPUT
SOURCER
OUTPUT
Fig. 1-2
(2) Dolby pro logic
Q601 ( LC8316E ) is a Dolby pro logic decoder IC.
When
an audio signal recorded using the Dolby pro
logic system is sent to this IC, the left, right, center
and surround components are separated. The
surround signal component is delayed by the digital
delay circuit by 15-30
ms and is sent to the modified
B-type
decoder Q601 where noise reduction pro-
cessing is performed.
(3) Movie, 3CH Logic Hall, Matrix
The Movie mode provides the feeling of presence
you get from a 35-mm movie in a movie theater.
3CH Logic mode is used to improve the sound field
center by applying directivity enhancement provided
by the Dolby Pro Logic Surround decoder.
Hall mode provides a sound-field effect of medium-
sized circular hall with rich reverberations.
Matrix mode is effective for playing sports broad-
casts or outdoor live concerts. It provides a surround
mode with a wide surround effect.
All the connections
of the circuits are the same in
these modes. Q601, controlled by the microproces-
sor, processes the audio signals to produce various
sound effects and creates surround components to
use them as signals
to drive the surround channel.
2. CENTER MODE
With Dolby pro logic, three center modes depend on the
use of a center speaker
as follows :
NORMAL : Bass frequencies are serit only to the
Left and Right Front channels. Select
this mode when the Center Speaker is
smaller than the Left and Right speakers.
WIDE : Bass frequencies are sent to the Left,
Center and Right speakers. Select this
mode when the Center speaker is
approximately the same size as the Left
and Right speakers.
PHANTOM : Center channel information is sent to the
Left and Right speakers. Select this
mode when you do not have a center
channel speaker.
QV04
LC78212
MASTER
VOLUME
AMP
FRONT L
AMP
FRONTR
AMP
IIJ CENTER
SUB
240
WOOFER
22
AMP
SURROUND
210
L
9
AMP
SURROUND
100
R
3. TEST TONE GENERATOR
The test tone generator generates a test tone ( noise ) to
check the balance of sound output from each speaker in
the Dolby pro logic mode. ( This circuit is produced under
license of the Dolby Laboratories Licensing Corp. )
0601 LC83016E
NOISE
OUTPUT
GENERATOR
DATA
l
I
LEVEL
I
CALC.
( Flow of noise signals within the system. )
Fig. 3
L
R
C
SR
r
:.·.
C
i
\
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