Sony LBT-V925CD User manual

3002751 3-786-912-51(1
SONY WUTIMIMIM 220772:
LBTV925CD
Stereo
Component System
Operating Instructions
vist:
LBT-V925CD
© 1989 by Sony Corporation

WARNING _
To prevent fire or shock hazard, do not expose the unit to
rain or moisture.
To avoid electrical shock, do not open the cabinet. Refer
servicing to qualified personnel only.
NOTICE FOR THE CUSTOMERS IN THE UNITED
KINGDOM
The mains lead plug of this apparatus is 2-pin type designed
to be connected only to other apparatus equipped with a
suitable socket outlet.
lf the plug cannot be used in this way, cut off the plug and fit
an appropriate one as follows:
IMPORTANT
The wires in this mains lead are coloured in accordance with
the following code:
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this
apparatus may not correspond with the coloured markings
identifying the terminals in your plug proceed as follows:
The wire which is coloured blue must be connected to the
terminal which is marked with the letter N or coloured black.
The wire which is coloured brown must be connected to the
terminal which is marked with the letter L or coloured red.
WARNING
To prevent shock hazard, do not insert the plug cut off from
the mains lead into a socket outlet. This plug cannot be used
and should be discarded.
i ~ ]
DANGER
Invisible laser radiation when open and interlock failed or
defeated. Avoid direct exposure to beam.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may result
in hazardous radiation exposure.
Laser component in this product is capable of emitting
radiation exceeding the limit for Class 1.
Note
This appliance conforms with EEC Directives 76/889 and
82/499 regarding interference suppression.
This Compact Disc player is‘
classified as a CLASS 1
LASER product.
The CLASS 1 LASER
PRODUCT label is located
on the rear exterior.
CLASS 1
LASER PRODUCT
Table of Contents
Getting Started
System COMPONENt COMPOSITION ou... eee eee eterna
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INStAIIATION ects hha ceed, dares
Connections
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Using Your Stereo
PLAYING A CISC: fo. seci. ap iyaieotettes doveares sa caesvaaaateveenest as cnenzege tinea
Playing repeatedly — Repeat play... eee eecescceeeeeeees
Playing in a random order — Shuffle play 0.0... eee
Playing in a desired order - Program play
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Keeping the program in memory
— Program bank FUNCTION .0.... eects e cee tece crete teeeeeeeee 25
Writing a comment about a disc - Disc memo function ..... 26
Giving a disc indexes as you want
— Custom index FUNCTION oo... cece eee eseereeerneceeeseteneeens 28
Broadcast reception
Tape playback
Tape recording
Recording from CD
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Using the preamplifiers sound manipulation features ....... 49
Adjusting the sound using the digital
PArAMEtriC CQUALIZET oe cee cece cee te tte tees eens enenetereeey 53
Using the digital presence surround effects ......... cee 55
Providing low-volume sound with a feeling of power
— Digital dynamic SOUN 0.0... eee cece ee tneee sees ceeneeeeeeeaes 57
Digital SOUNd MENU 0... eeeteeteeseteeeeaeeeeeseeseesatseeseteaesatseneees 58
Using the digital sound menu settings to adjust the
SOUNGsieheck aici livectescnstens teachetesanseess seceaane tees feat sbeiets 60
Storing your individual sound effect settings
Se LISOPIMOMONY: ssc.ciccecsceccshids celbval secs cauceyecodsedgevectedasesnnscs 61
Combining video images with sounds from other sources
and performing Video Editing ....... ccc seeeeeeeeteneeees 63
MiCrOPhONE MIXING .......:..cceceeceeceeeecescceceseaeenersnteceeeeeeenseteseeeers 64
Maintaining Your Stereo
MAINTENANCE oo. ce eee cece eee ecceeeaecneeeteeea ee ceeenaueeneeeeeeenseeseeneeees 65
Troubleshooting
Troubleshooting QUuide «0.2.0... ees ceereenetetesseeeeeeaareeteneeeee 66
Getting into the Details
SPe@cifiCAtiOMS .-:.:.<desssss.scccees bleed ceateddeedscescateastduvescveetedenseentens 67
Using the Remot Commander
How to use the remote control unit
(Preamplifier SCCtION) ..........ceeeeeeeeeeereeeeeneees Back cover

System Component
Composition .
The LBT-V925CD comprises the following components.
Components Model name
Tuner ST-V925E
Preamplifier TA-V925EE
Power amplifier TA-V925NE
CD player CDP-V925E
Cassette deck TC-V925E
Turntable PS-V901
Speaker system APM-181ES
For the operation of PS-V901 turntable and APM-181ES
speaker system, see the operating instruction of those
equipments.
Precautions
On safety
« Operate the unit only on 240V AC, 50 Hz.
¢ The stereo system is not disconnected from the AC power
source as long as it is connected to the wall outlet, even if
the stereo system itself has been turned off.
e Unplug the stereo system from the wall outlet if it is not to
be used for an extended period of time. To disconnect the
cord, pull it out by grasping the plug. Never pull the cord
itself.
e The nameplate indicating operating voltage, power
consumption, etc. is located at the rear.
e Should any solid object or liquid fall into the component,
unplug the stereo system and have the component
checked by qualified personnel before operating it any
further.
If you have any question or problem concerning your stereo
system, please consult your nearest Sony dealer.
Features
Preamplifier
Digital drive preamplifier for creating vibrant sound
The preamplifier features a Digital Parametric Equalizer,
Digital Presence Surround, and Digital Dynamic Sound.
Enabling you to mold the musical sound to your individual
taste. Also, you can easily adjust the music to your taste by
selecting from various patterns (up to 200) which combine
these three functions and are stored in the preamplifier’s
preset memory.
Digital parametric equalizer for sound control
This function employs digital processing to enable you to
adjust the quality of the sound by raising and lowering the
levels of specific frequency ranges.
Digital presence surround which allows you to select
the surround system to match the music genre
This function features three types of surround — music,
movie, and simulated — to allow you to match the surround
system with the genre of the sound source and reproduce
the sound as if you were actually experiencing it in a concert
hall or movie theater. In addition, the amount of
reverberation can be varied in order to reproduce sound with
a sense of presence as if it were being listened to ina
concert hall.
Digital dynamic sound for providing low-volume sound
with a feeling of power
When listening at low volume levels, this function raises the
level of hard to hear sounds and provides the sound witha
good overall balance.
Abundant input and output jacks for handling digital
transmission and a wide variety of AV equipment
This preamplifier is provided with optical inputs for
connecting up to 2 digital components such as CD players
and DAT decks, and video inputs for connecting up to 3
video components such as VTRs and video disc players.
Power Amplifier
Independent power amplifier
The power amplifier and the preamplifier are designed as
independent units in the amplifier section to ensure high-
quality digital sound.
80W + 80W high-power output
Plenty of speaker-driving power with power to spare.

Features .
CD Player
Tuner
Custom file function for facilitating disc management
With this feature, you can file music programs, disc names,
and indexes, enabling you to recall programs at any time.
1-20 numeric buttons and > 20 button for quick tune
selection
With these buttons, you can directly specify the number of a
desired tune or track.
Music calendar for providing playback status
information at a glance
The track number of the currently playing tune or
programmed tune can be seen at a glance.
Time edit function for facilitating tape-making
With this function, you can automatically create a music
program which optimally matches the tunes on a CD with the
tape recording time.
Optical digital transmission system for producing high
sound quality
This CD player employs a digital transmission system which
uses optical fiber cables to maintain sound purity.
Cassette Deck
The Dolby HX PRO* system which improves the linearity of
the tape’s high-range response during recording.
B and C type Dolby NR* system to reduce tape hiss noise.
Synchro start function for facilitating recording from
compact disc
This function allows recording from compact disc to be
started and stopped by only operating the cassette deck.
Fade edit recording function for making tapes without
abrupt mid-tune breaks
When recording from compact disc, this function
automatically fades out the tune at the end of the tape and
re-records interrupted tunes.
Preamplifier-processed sound recording
Sound can be recorded after it is processed by the equalizer,
surround system, and/or dynamic sound system.
CCLA function for automatically determining the
recording level
The recording level is computer adjusted to optimally match
the tape.
‘ Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories
Licensing Corporation. HX Pro originated by Bang &
Olufsen.
“DOLBY”, the double-D symbo! DN] and “‘HX PRO” are
trademarks of Dolby Laboratories Licensing Corporation.
A quartz locked digital synthesizer system allows precise
tuning. A total of 30 FM/AM stations can be preset in 3
memory pages (A, B and C).
Others
e Demo mode for automatically demonstrating various
system functions.
« Remote control unit for providing free and unrestricted
control of the system.

Matic lifela
Cod cst-melemiacieclitcticeyal
¢ To prevent internal heat build-up, place the unit ina
location with good air circulation. Do not place it ona soft
surface, such as a rug that would block the ventilation
holes on the bottom.
e Do not install the unit in a focation:
— near heat sources
— subject to direct sunlight, mechanical vibration or shock
— exposed to rain, moisture, dirt or dust.
Installing Batteries
1
Install two R6 (size AA) batteries in the supplied remote
commander for remote control operation.
Battery life
About half a year of normal operation can be expected when
using the Sony SUM-3 (NS) batteries.
When the batteries are exhausted, the commander will not
operate the unit. In this case, replace the batteries with new
ones.
To avoid battery leakage
When the commander is not to be used for a long period of
time, remove the batteries to avoid damage caused by
battery leakage and corrosion.

(Oe) gl arsreyt(e) gts
Notes on Connection
e Connect the AC power cord last. Make sure the power e Fully insert cable connectors into jacks. Loose connections
switch is off. may cause hum or noise.
e Cord plugs and jacks are color coded. Red plugs and jacks
are for the right channel (R) and white ones are for the left
channel (L).
AU BUS connecting cord
Cj
CG)
ST-V925E
TA-V925EE
CDP-V925E
To disconnect
TC-V925E
TA-V925NE
© Connecting the left and right speakers
Right speaker \ Left speaker
TA-V925NE
G @
Second speaker system

3] Connecting the FM antenna (4 ) Connecting the AM antenna
If necessary,
attach to a wall
Supplied AM loop antenna
For better reception
For better reception Extend a 6- to 15-meter insulated wire out of doors.
{EC standard
socket connector
et
@ Connecting the CD player
DIGITAL IN automatically detects and adjusts to the sampling frequency
(32 kHz, 44.1 kHz or 48 kHz) of the digital source connected.
moat,
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Remove the protecting
Plug.
A-V925EE oS 2)
3
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J
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(ws) s) foal
>-SDp-VO25E
Supplied optical cord
Nee a eet he
Notes on the digital optical cord
e Do not bend the cord. Be careful especially while e Insert the protection plugs in the jacks if the cord is not
connecting the cord. connected.
e Make a Circle of more than 15 cm (6 in.) in diameter when e Make sure that the plugs and the jacks are clean.
storing
the
cord.
7

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@ Connecting speakers for surround sound
Right speaker TA-V925NE Left speaker
Be sure to connect both left and right speakers. Sound does not come out from the surround speakers when only
one speaker is connected.
@® Connecting the AC power
PS-V901
ST-V925E
TA-V925EE
CDP-V925E
TC-V925E
ae
TA-V925NE || |S Qdio9
oh i OOOO Ep"
rene, tO @ wall outlet
The unswitched socket outlet remains live, independent CAUTION
of the power switch setting, at all times when the unit is Do not connect any electrical home applicance, such as
connected to an AC power supply. an electric iron, fan, TV or other high-wattage appliance
Be sure to connect the AC power cord of another audio to the AC OUTLET.
component whose power consumption is less than 200
watts.
/f you operate your tuner with the CD player turned on:
Noise may interfere with radio reception. Therefore, always turn off the power to the CD player when it is not in use.
10

Parts Identification
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a) fol fe NI | fol fb] | NOG
11
POWER switch
PRESET STATIONS buttons
SHIFT buttons
Display window
TUNING knob
PRESET/FREQUENCY switch
NEMORY SCAN button
AUTO (automatic) TUNING button
NEMORY button
BAND selector
Remote control sensor
i 4G |
Preamplifier
YVeBeRRONRBeEBA BAR BB
POWER switch
CLEAR button
Function buttons and indicators
Display window
VOLUME control
BALANCE control
MIC (microphone) LEVEL control
MIC (microphone) input jack
USER MEMORY buttons
Digital CONTROL MODE buttons
Digital Parametric EQUALIZER curve operation buttons
DIGITAL DYNAMIC SOUND selector and indicators
DIGITAL PRESENCE SURROUND selector and indicatos
DIGITAL EFFECT switch and indicator
EQUALIZER RECORDING switch and indicator
DISPLAY button
11

Audio Adjustment
SPEAKERS
Selectings the Speaker System Al
This amplifier provides for two speaker systems — system A
and system B ~ which can be selected separately or
simultaneously using the SPEAKERS selector.
To drive speaker system A: Set to A.
To drive speaker system B: Set to B.
To drive both speaker systems A and B: Set toA + B
For private listening with headphone connected to the
HEADPHONES jack: Set to OFF.
Note: Speaker systems A and B are series connected. No
sound will be heard if SPEAKERS selector is set to A + B
when only one speaker system is connected.
14
PEAK POWER METER
=e METER RANGE
SPEAKERS eat Te
a= OPERATION
LEFT BALANCE ,RIGHT
a
aac
Volume Adjustment B |
Turn the VOLUME control clockwise to increase the volume.
Turn it counterclockwise to decrease the volume.
Before turning ON the power, turn the VOLUME control fully
counterclockwise to avoid damage to the speakers.
Balance Adjustment
Adjust the BALANCE contro! to correct stereo imaging when
the speaker position is not symmetrical.