Philips MC-V320/21M User manual

GB
CLASS 1
LASER PRODUCT
Service
Service
Service
Service
Service
MC-V320/21M
TABLE OF CONTENTS Page
Location of PCBs & Version Variations ......................1-2
Technical Specifications .............................................1-3
Measurement setup....................................................1-4
Service Aids, Safety Instruction, etc...........................1-5
Preparations & Controls .............................................1-7
Disassembly Instructions............................................... 2
Set Block diagram .........................................................3
Set Wiring diagram ........................................................4
Key Board ......................................................................5
Power Board ..................................................................6
Tuner Board ...................................................................7
MCU & VCD Board........................................................8
Diode & Connection Board............................................9
Main Board ..................................................................10
Set Mechanical Exploded View & Parts List ............... 11
©Copyright 2002 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by SL 0326Service AudioPrinted in The NetherlandsSubject to modification
Micro System
3140 785 32540
Version 1.0
ServiceManual

1-2
LOCATIONOFPRINTEDCIRCUITBOARDS
VERSION VARIATIONS
Type/Versions MC-V320
Features &
Board in used
RDS function
Aux Input
ECO Standby
Digital Coaxial Out x
Subwoofer Out
Line Out
Headphone Out
/21M
AC Voltage Selector x
Non-Cenelec Tuner
Cenelec Tuner x

x
MAIN BOARD
TUNERBOARD
POWER BOARD
MCU & VCD
BOARD

KEY
BOARD
DIODE 
BOARD

1-3
SPECIFICATIONS
GENERAL:
Mains voltage
: 120V / 230V ±15%
Switchable
Mains frequency
: 50/60Hz
Power consumption
: < 8W at Standby
(DEMO mode off)
: 45W at Active
Clock accuracy : < 4 seconds per day
Dimension centre unit : 155 x 220 x 270mm
TUNER:
FM
Tuning range
: 87.5-108MHz
IF frequency
: 10.7MHz ±20kHz
Aerial input : 75ΩCoaxial
Sensitivity at 26dB S/N
: < 22dBf
Selectivity at S9/300kHz : > 33dB
IF Rejection : > 60dB
Image Rejection : > 20dB
Distortion at RF=1mV, dev. 75kHz : < 3%
-3dB Limiting Point : < 23.5dB
Crosstalk at RF=1mV, dev. 40kHz : > 26dB
Modulation Hum : > 45dB
AM Suppression I/P: 48~82dBf : > 25dB
AM (MW)
Tuning range
: 531-1602kHz or
530-1700kHz
Grid
: 9kHz / 10kHz
IF frequency
: 450kHz ±1kHz
Aerial input
: Frame aerial 18.1µH
Sensitivity at 26dB S/N : < 3.25mV/M
Selectivity at S9/300kHz : > 15dB
AGC Figure of Merit : > 25dB
IF rejection : > 24dB
Image rejection : > 20dB
Distortion at RF=50mV, m=80% : < 5%
Mudulation Hum with REC or : > 40dB
Spurious Response Rejection : > 28dB
AMPLIFIER:
Output power (6Ω, 1kHz, 10% THD) : 2X18W
Frequency response within -3dB : 60Hz-14kHz
Digital Sound Control (DSC) : Optimal,Classic,Jazz,
Rock
DBB : ON/OFF
Incredible Surround (IS) : ON/OFF
Input sensitivity (±3dB) for Rated Output Power at 1kHz
Aux in : 500mV; Rs=600Ω
Tuner in : FM67.5kHz, AM80%Modulation
CD in : -6dB track
Tape in : 250nWb/m
Microphone in : 3.5mV; Rs=600Ω
Output sensitivity
Headphone output at 32Ω:15mW ±1dB
CASSETTE RECORDER:
Number of track : 2 Tracks (Stereo)
Tape speed : 4.76 cm/sec ±2%
Wow and flutter : < 0.4% DIN
Fast-wind/Rewind time C60 : 130 sec
Bias system : 80Hz - 10kHz
Rec/Pb freq. response within 8dB : 78kHz ±10kHz
Signal to Noise Ratio (A-weighted) : > 48dBA
Distortion 250nWb/m : < 5%
Channel Difference at overall : < 4dB
COMPACT DISC:
Frequency response within ±3dB : 63Hz - 14kHz
Output level (in Vrms) : 500mV, Zout = 100Ω
Signal/Noise ratio (A-weighted): > 62dBA
Distortion at 1kHz : < 0.02%
Channel unbalance at 1kHz : ≤2dB
Channel separation at 1kHz : > 30dB
Emphasis : 15/50 µS (switched
automatically by CD10)
THD Noise(1kHz) : 1.00%
Outband Attenuation : > 20dB for Frequency >
40kHz
VIDEO - CD :
Video bandwidth : 6MHz
Amplitude output : 1.0Vpp(+10/-15%)
S/N luminance : ≥45dB
Chroma/Luminance delay : ≤80ns
MP3 - CD :
Bit rates : 32K - 320Kps
Sampling rates : 32KHz/44.1KHz/48KHz

LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3) SBC429 4822 397 30184
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.g. 7122 707 89001
Tuner AM (MW,LW)
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50Ω
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
RF Generator
e.g. PM5326
S/N and distortion meter
e.g. Sound Technology ST1700B
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50Ω
Tuner FM
MEASUREMENT SETUP
1-4

1-5
SERVICE AIDS
Service Tools:
Universal Torx driver holder .................................. 4822 395 91019
Torx bit T10 150mm ............................................. 4822 395 50456
Torx driver set T6 - T20......................................... 4822 395 50145
Torx driver T10 extended ...................................... 4822 395 50423
Cassette:
SBC419 Test cassette CrO2................................. 4822 397 30069
SBC420 Test cassette Fe ..................................... 4822 397 30071
MTT150 Dolby level 200nWb/M............................ 4822 397 30271
Compact Disc:
SBC426/426A Test disc 5 + 5A ............................ 4822 397 30096
SBC442 Audio Burn-in Test disc 1kHz ................. 4822 397 30155
SBC429 Audio Signals disc .................................. 4822 397 30184
Dolby Pro-logic Test Disc...................................... 4822 395 10216
ESD Equipment:
Anti-static table mat - large 1200x650x1.25mm ... 4822 466 10953
Anti-static table mat - small 600x650x1.25mm..... 4822 466 10958
Anti-static wristband .............................................. 4822 395 10223
Connector box (1MΩ)............................................ 4822 320 11307
Extension cable
(to connect wristband to conn. box).................. 4822 320 11305
Connecting cable
(to connect table mat to conn. box) .................. 4822 320 11306
Earth cable (to connect product to mat or box) .... 4822 320 11308
Complete kit ESD3
(combining all above products)......................... 4822 320 10671
Wristband tester .................................................... 4822 344 13999
HANDLING CHIP COMPONENTS

1-6
GB
WARNING
All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.
F
ATTENTION
Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.
ESD
D
WARNUNG
Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.
NL
WAARSCHUWING
Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.
I
AVVERTIMENTO
Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.
“Pour votre sécurité, ces documents
doivent être utilisés par des spécia-
listesagréés,seulshabilitésàréparer
votre appareil en panne”.
GB
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.
NL
Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.
F
Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.
D
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.
I
Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.
"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."
CLASS 1
LASER PRODUCT
3122 110 03420
GB
Warning !
Invisible laser radiation when open.
Avoid direct exposure to beam.
S
Varning !
Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.
SF
Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!
DK Advarse !
Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.

PREPARATIONS AND CONTROLS
1-7
Preparations
Rear connections
The type plate is located at the rear of the
system.
APower
Before connecting the AC power cord to the
wall outlet, ensure that the following are done;
– If your system is equipped with a Voltage
Selector, set theVOLTAGE SELECTOR to the
local power line voltage.
–All other connections have been made.
WARNING!
–For optimal performance, use only the
original power cable.
–Never make or change any connections
with the power switched on.
To avoid overheating of the system, a safety
circuit has been built in. Therefore, your
system may switch to Standby mode
automatically under extreme conditions. If
this happens, let the system cool down
before reusing it (not available for all versions).
BAntennas Connection
Connect the supplied AM loop antenna and FM
antenna to the respective terminals. Adjust the
position of the antenna for optimal reception.
AM Antenna
speaker
(right) speaker
(left)
AC power cord
AM loop 
antenna
FM wire antenna
A
BD
C
VIDEO
IN
Television
L
R
AUDIO
OUT
Preparations
●Position the antenna as far as possible from a TV,
VCR or other radiation source.
FM Antenna
●For better FM stereo reception, connect an
outdoor FM antenna to the FM AERIAL (FM
ANTENNA) terminal.
C
Speakers Connection
Front Speakers
Connect the speaker wires to the SPEAKERS
terminals, right speaker to "RIGHT" and left
speaker to "LEFT", colored (marked) wire to
"+" and black (unmarked) wire to "-".
●Fully insert the stripped portion of the speaker
wire into the terminal as shown.
Notes:
–For optimal sound performance, use the
supplied speakers.
– Do not connect more than one speaker to any
one pair of
+
/
-
speaker terminals.
– Do not connect speakers with an impedance
lower than the speakers supplied. Please refer to
the SPECIFICATIONS section of this manual.
D
Video Out Connection
Connect the VIDEO OUT (CVBS) terminal
at the rear of the system to the TV or VCR
VIDEO IN for viewing or recording.
Note:
–To avoid magnetic interference with the picture
on your TV, do not position the front speakers too
close to the TV.
Optional connection
The optional equipment and connecting cords
are not supplied. Refer to the operating
instructions of the connected equipment for
details.
Connecting other equipment to your
system
Connect the audio left and right OUT terminals
of a TV,VCR, Laser Disc player, DVD player or
CD Recorder to the AUX terminals.
Note:
–I
output (a single audio out terminal), connect it to
the AUX left terminal. Alternatively, you can use a
“single to double” cinch cable (the output sound
still remain mono).
Inserting batteries into the
Remote Control
Insert two batteries (Type R06 or AA) into the
remote control with the correct polarity as
indicated by the +and -symbols inside the
battery compartment.
CAUTION!
– Remove batteries if they are exhausted
or not to be used for a long time.
–Do not use old and new or different
types of batteries in combination.
– Batteries contain chemical substances, s o
they should be disposed off properly.

PREPARATIONS AND CONTROLS
1-8
2
3
1
8
6
4
5
7
9
0
!
@
#
⁄
º
ª
*
§
$
•
£
™
¡
)
(
$
&
*
^
%
¤
∞
27
24

PREPARATIONS AND CONTROLS
1-9
Controls
Controls on the system and
remote control
1Display
– shows the status of the system.
2PROG/ REV
for VCD/ CD/ MP3 ...... programmes tracks and
reviews the programme.
for TUNER ........................ programmes tuner
stations manually or
automatically.
for TAPE .............................. sets tape reverse mode
3CLOCK SET
for CLOCK ....................... set the clock function.
for VCD/ CD/ MP3 ...... starts or interrupts CD
playback
for TAPE .............................. starts the tape playback
4Mode Selection
VOLUME (-/+)
– adjusts the volume level.
–on the system only - adjusts the hour and minutes
for the clock/timer functions.
PRESET/ TIMER SET / (TITLE –/+)
for TUNER ........................ selects a preset radio
station.
for VCD/ CD/ MP3 ...... skips to the beginning of a
current track/ previous/
subsequent track
................................................. select next or previous
menu
for Timer ( only) to set timer under standby
SEARCH/ TUNE /(ALBUM –/+)
for TUNER ........................ Tune to a station
for VCD/ CD ................... fast searches back and
forward within a track.
for MP3 ............................... ALBUM select.
for TAPE .............................. fast rewind/ wind tape
STOP 9
for VCD/ CD/ MP3 ...... stops VCD/ CD/ MP3
playback or erase a VCD/
CD/ MP3 programme.
for TUNER ........................ stops programming
for TAPE .............................. stops tape playback/
recording.
REC ●............................... starts recording.
5SOURCE ●
– selects the respective sound source for CD/
TUNER/ TAPE /AUX.
–switches on the system.
6DISPLAY-BAND
for TUNER ........................ change the tuner radio
band.(FM/ MW)
for VCD/ CD/ MP3 ...... change the CD display
mode
for TAPE .............................. select tape direction
7iR SENSOR
–infrared sensor for remote control.
8STANDBY ON 2
–switches the system to standby.
9PHONES - connects to headphone.
0LEVEL (mic)
– to adjust the mixing level for karaoke or
microphone recording.
!MIC
–to connect microphone jack.
@
– open/ close the cassette door.
#CD OPEN
– open the CD door.
$INTERACTIVE SOUND controls:
DBB .................................... (Dynamic Bass Boost)
enhances the bass.
DSC ..................................... (Digital Sound Control)
selects sound
characteristics: CLASSIC/
JAZZ/ ROCK/ OPTIMAL.
%2
– to switch the system to Standby mode.
^DIGIT 0/-- – 9
(numbers consisting more than two or three figures
must be Press & hold 0/--.)
–to select a track number for CD/VCD/MP3-CD.
– to select tuner preset.
&MODE
REPEAT
– repeats a track/ CD programme/ entire CD.
SHUFFLE
–plays CD tracks in random order.
Controls
*
VOLUME (-/+)
– to increase or decrease the volume.
– adjusts the hour and minutes for the clock/ times
junctions.
(
DIGEST
– to scan through a VCD or a specific track.
)
A - B
– to playback a certain scene or passage of a CD/
VCD repeatedly.
¡
SLOWÖ
–to watch the VCD at a slower speed.
™
RESUME
– to continue playback again from where you have
stopped (for VCD with PBC switched off).
£
ECHO -/+
– to adjust the VCD echo level for karaoke after
inserted the microphone.
KEY CONTROL ( I È i )
– to change the VCD key tone level to suit your
vocal range.
I........................... to decrease the key tone level.
È.............................. to restore the key tone level to
original setting.
i............................. to increase the key tone level.
VOCAL
– to fade out the original vocal from a Karaoke
VCD or to switch between mono or stereo
mode during audio disc playback.
§
GOTO
– select time to begin playback within track.
VCD Operation (for VCD version 2.0 only)
PBC (PLAYBACK CONTROL)
– to switch on or off PBC mode.
RETURN
– to return to the previous MENU level during
playback (for VCD with PBC switched on).
•
TIMER ON / OFF
– activates/deactivates the timer function.
ª
Mode Selection
PLAY PAUSE
for CD/VCD/MP3-CD…to start or interrupt
playback.
for TAPE .................................... to start playback.
à/ á(ALBUM --
--
-/++
++
+)
for MP3-CD only ................ to select previous/next
Album
for CD/VCD .......................... to search backward/
forward.
for TUNER .............................. to tune to a lower or
higher radio frequency.
for TAPE .................................... to rewind or fast
forward.
STOP Ç
for CD/VCD/MP3-CD ..... to stop playback or to
clear a programme.
for TAPE .................................... to stop playback or
recording.
....................................................... to reset tape counter
number.
í/ ë(TITLE --
--
-/++
++
+)
for MP3-CD only ................ to select previous/next
Title.
for VCD only .......................... to select next or
previous MENU or
VCD track during
playback (for VCD with
PBC switched on).
for CD/VCD .......................... to skip to the previous
or next track.
for TUNER .............................. to select a preset radio
station.
º
PROGRAM
for CD/VCD/MP3-CD… to programme disc
tracks.
for TUNER .............................. to programme preset
radio stations manually
or automatically
⁄
VCD/ CD
24
25
27

1-10
Controls
Notes for remote control:
–First, select the source you wish to control
by pressing one of the source select keys on
the remote control (VCD/ CD orTUNER, for
example).
–Then select the desired function ( ,
,
for example).
–to select disc (this system can playback normal
CD/VCD/MP3-CD format disc).
–to select corresponding video output for NTSC
or PAL system of yourTV set (except Multi-
system TV).
TUNER
–to select tuners mode.
TAPE
–to select tape deck mode.
AUX / (CDR/DVD)
–to select a connected external source :
CDR/DVD or AUX (auxiliary) mode.
OSD (ON SCREEN DISPLAY)
–to switch on or off the on screen display on the
TV.
PREPARATIONS AND CONTROLS

TROUBLESHOOTING
Troubleshooting
WARNING
Under no circumstances should you try to repair the system yourself, as this will invalidate the
warranty. Do not open the system as there is a risk of electric shock.
If a fault occurs, first check the points listed below before taking the system for repair. If you
are unable to remedy a problem by following these hints, consult your dealer or service center.
Problem Solution
CD OPERATION
“NO DISC”is displayed. – Insert a disc.
– Check if the disc is inserted upside down.
–Wait until the moisture condensation at the lens
has cleared.
– Replace or clean the disc, see “Maintenance”.
– Use a finalised CD-RW or CD-R.
No picture onTV screen. – Connect the cable betwen the system and TV.
No colour on TV. – Change the system to the respective PAL or
NTSC setting.
Cannot adjust the TV system to – Remove the MP-3 CD from disc tray
PA L or NTSC.
Maintenance
Cleaning the Cabinet
●Use a soft cloth slightly moistened with a mild
detergent solution. Do not use a solution
containing alcohol, spirits, ammonia or abrasives.
Cleaning Discs
●When a disc becomes dirty,
clean it with a cleaning cloth.
Wipe the disc from the centre
out.
●Do not use solvents such as
benzene, thinner, commercially
available cleaners, or antistatic
spray intended for analogue records.
Cleaning the disc lens
●After prolonged use, dirt or dust may
accumulate at the disc lens.To ensure good
playback quality, clean the disc lens with Philips
CD Lens Cleaner or any commercially available
cleaner. Follow the instructions supplied with
cleaner.
Cleaning the Heads and the Ta pe Paths
●To ensure good recording and playback quality,
clean the heads
A, the capstan(s) B, and
pressure roller(s) Cafter every 50 hours of
tape operation.
Caution: Do not rotate the heads during
cleaning.
●Use a cotton swab slightly moistened with
cleaning fluid or alcohol.
●You can also clean the heads by playing a
cleaning tape once.
AABC
Demagnetising the heads
●Use a demagnetising tape available at your
dealer.
Troubleshooting
RADIO RECEPTION
Radio reception is poor. – If the signal is too weak, adjust the antenna or
connect an external antenna for better reception.
– Increase the distance between the Micro HiFi
System and your TV or VCR.
TAPE OPERATION / RECORDING
Recording or playback cannot be made.–Clean deck parts, see “Maintenance”.
–Use only normal (IEC I) tape for recording.
“CHECK TAPE”is displayed. – Apply a piece of adhesive tape over the missing
tab space.
The tape deck door cannot open. – Remove and reconnect the AC power plug and
switch on the system again.
GENERAL
The system does not react when buttons – Remove and reconnect the AC power plug and
are pressed. switch on the system again.
Sound cannot be heard or is of poor –Adjust the volume.
quality. –Disconnect the headphones.
– Check that the speakers are connected correctly.
– Check if the stripped speaker wire is clamped.
The left and right sound outputs are – Check the speaker connections and location.
reversed.
The remote control does not function – Select the source (CD or TUNER, for example)
properly. before pressing the function button ( ,, ).
– Reduce the distance between the remote control
and the system.
–Insert the battery with its polarities
(+/– signs) aligned as indicated.
– Replace the battery.
–Point the remote control directly toward
IR sensor on the front of the system.
The timer is not working. – Set the clock correctly.
– Press TIMER ON / OFF to switch on the timer.
–If a recording is in progress, stop the recording.
The Clock/Timer setting is erased. –Power has been interrupted or the power cord
has been disconnected. Reset the clock/timer.
1-11

1-12
TROUBLESHOOTING

2-1 2-1
DISASSEMBLY INSTRUCTIONS
A. To remove Brand Rim Left & Right
B. To remove Top Cabinet
C. To remove Bottom Cabinet
D. To remove Tape Deck
E. To remove Left & Right Metal Side Bars
F. To remove CD Bracket
G. To remove Rear Cabinet
H. To remove CD MCU Board
I. To remove CD Tray Cover
J. To remove Connection Board & CD Deck
K. To remove CD Door & Key Board
L. To remove Main Board
M. To remove Power Board
N. To remove Tuner Board
O. To remove Diode Board
A2
E2 (x2)
B2 (x4)
B1 (x4)
D1 (x4)
E1 (x2)
A1
F1 (x2)
F2 (x1)
C1 (x4)
C1 (x4)
G5 (x2) Only for /21
G1 (x3)
G2 (x2)
G3 (x2)
G4 (x2)
L1 (x2) L2 (x1)
H1 (x4)
I1 (x4)
K1 (x4)
M1 (x4)
N1 (x1)
J1 (x1)
O1 (x2)

2-2 2-2

3-1 3-1
SET BLOCK DIAGRAM
L
TO POWER
RSUPPLY
TO CASS DECK
PRE-AMP
NJM4556AM
VCC SW
D602 D603
VL:8V
VH:16V
+ CD 8V
+12V KA7812
CD-
L
CD-
R
TDA T468D
FUNCTION IC
POWER
AMP
AN17830A
SPK
HEADPHONE OUT
MCU
TMP87EP26F
AM
RF
AM IF
IC 101
TA2149BN
FM
IF PLL
TC
9257F
FM
OSC
FM RF
TA 8142AP
P/B-R
85KHZ
+6V L7806
REC-R
BA316N
CASSETT
DECK
OSC
DSP
TC9462F
RF
TA2153FN
DRIVE IC
TA2092N
CD
DECK
POWER
SUPPLY
AM OSC
AUX
TU-
R
AM ANT
TU-L
P/B-L
REC-L
LCD DRIVE IC
HT1622 LCD
STP16
N106
VIDEO
ES3207FP
MPEG
ES3210FP
DRAM
256Kx16
EPROM
27C020
VOLTAGE
REGULATOR
NTC
RES
FAN

4-1 4-1
SET WIRING DIAGRAM

5-1
KEY BOARD
TABLE OF CONTENTS
IC Block Diagram........................................................................ 8-1
Circuit Diagram...........................................................................8-2
Layout Diagram-Component ...................................................... 8-3
Layout Diagram-SMD................................................................. 8-3
Electrical parts list ......................................................................8-4
5-1
Block Diagram
Pin Assignment
HT1622
2 January 10, 2001
S E G 1 2
N C
S E G 8
S E G 9
S E G 1 0
S E G 1 1
N C
S E G 1 9
S E G 1 8
S E G 1 7
S E G 1 6
S E G 1 5
S E G 1 4
S E G 1 3
N C
N C
N C
N C
S E G 7
5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 5 2 5 3 5 4 5 5
2 3 2 0 2 1 2 2 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2
4 1
5 1
3 7
3 8
3 9
4 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
5 0
3 3
3 4
3 5
3 6
0 6  $
   $ "  3 . 2
S E G 2 3 S E G 2 4 S E G 2 5 S E G 2 6 S E G 2 7 S E G 2 8 S E G 2 9 S E G 3 0 S E G 3 1
N C
S E G 2 0 S E G 2 1 S E G 2 2
C S
B Z
N C
R D
W R
D A T A
VSS
O S C I
V D D
V L C D
I R Q
N C
B Z
T 1
T 2
C O M 1
N C
T 3
C O M 0
C O M 5 C O M 2 C O M 3 C O M 4 C O M 6 C O M 7 S E G 0 S E G 1 S E G 2 S E G 3 S E G 4 S E G 5 S E G 6
1
1 1
2
3
4
5
6
7
8
9
1 0
1 2
1 3
1 4
1 5
1 8
1 9
1 6
1 7
W a t c d o g T i m e r
and
T i m e B a s e G e n e r a t o r
D i s p l a y R A M
L C D D r i v e r /
B i a s C i r c u i t
C o n t r o l
and
T i m i n g
C i r c u i t
D A T A
W R
O S C I
C S
R D
C O M 0
C O M 7
S E G 0
S E G 3 1
T o n e F r e q u e n c y
G e n e r a t o r
B Z
B Z
I R Q
V S S
V D D
V L C D

CIRCUIT DIAGRAM - FRONT BOARD
5-2 5-2

LAYOUT DIAGRAM - FRONT BOARD
COMPONENT SIDE
5-3 5-3
LAYOUT DIAGRAM - FRONT BOARD
SMD SIDE

5-4 5-4
ELECTRICAL PARTSLIST - KEY BOARD
- MISCELLANEOUS -
CN901 9965 000 18230 CONN 16P H P=1.0
LCD901 9965 000 18252 LCD MC320
LED901 9965 000 19727 LED RED
LED902 9965 000 19727 LED RED
LED903 9965 000 18304 LED BT-H203D-31 RED
LED904 9965 000 18304 LED BT-H203D-31 RED
LED905 9965 000 18304 LED BT-H203D-31 RED
LED906 9965 000 18304 LED BT-H203D-31 RED
SW901 4822 276 13775 SWITCH
SW902 4822 276 13775 SWITCH
SW903 4822 276 13775 SWITCH
SW904 4822 276 13775 SWITCH
SW905 4822 276 13775 SWITCH
SW906 4822 276 13775 SWITCH
SW907 4822 276 13775 SWITCH
SW908 4822 276 13775 SWITCH
SW909 4822 276 13775 SWITCH
SW910 4822 276 13775 SWITCH
SW911 4822 276 13775 SWITCH
SW912 4822 276 13775 SWITCH
SW913 4822 276 13775 SWITCH
- DIODES -
D901 4822 130 30621 1N4148
D903 4822 130 30621 1N4148
D904 4822 130 30621 1N4148
- IC & TRANSISTORS -
IC901 9965 000 18251 IC HT1622-64-QFP
IC902 9965 000 14545 SENSOR RECEIVER
Note: Only these parts mentioned in the list are
normal service parts.