Philips MRD300/37 User manual

CLASS 1
LASER PRODUCT
Service
Service
Service
Service
Service
MRD300/37
©Copyright 2003 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 KC-ET0332 Service AudioPrinted in The Netherlands Subject to modification
GB
3139 785 30450
DVD Receiver
Version 1.0
TABLE OF CONTENTS Page
Location of PC Boards................................................1-2
Versions Variation & Package ....................................1-2
Specifications..............................................................1-3
Measurement Setup ...................................................1-4
Service Aids ................................................................1-5
ESD & Safety Instruction............................................1-6
Setting Procedure.......................................................2-1
Repair Instructions......................................................2-2
Disassembly Instructions & Service positions ..............3
Block & Wiring Diagram ................................................4
Control & Earphone & YUV & Key Board.....................5
Switch Power Board.....................................................6
Tuner Board...................................................................7
Main Board....................................................................8
Set Mechanical..............................................................9
5 DVD Loader..............................................................10
ServiceManual
COMPACT
DIGITAL AUDIO

1-2
LOCATION OF PC BOARDS
VERSION VARIATION:
/37
RDS function
Progressive scan x
YUV board x
Power PCB (120V) x
Type /Versions: MRD300
Features &
Board in used
TUNER PCB
MAIN PCB
SWITCH POWER PCB
YUV PCB
CONTROL
PCB
EARPHONE PCB

SPECIFICATIONS
AMPLIFIER SECTION
PowerOutput .........................................................2x50W
- Stereo mode (DIN)................................................2 x15 W
-Surroundmode(1kHz)............................10WRMS/channel
TotalHarmonicDistortion...........10%atratedpower(1kHz)
FrequencyResponse.........................180Hz-14kHz/±1dB
Signal-to-NoiseRatio........................................>65dB(CCIR)
InputSensitivity...........................................................400mV
TUNER SECTION
TuningRange.................FM87.5-108MHz(100kHzsteps)
..........................................AM530-1710kHz(10kHzsteps)
26dBQuietingSensitivity......................................FM20dB
26dBQuietingSensitivity..............................AM3162uV/m
ImageRejectionRatio...........................................FM25dB
................................................................................AM28dB
IFRejectionRatio..................................................FM60dB
................................................................................AM24dB
Signal-to-NoiseRatio..............................................FM60dB
................................................................................AM40dB
AMSuppressionRatio...........................................FM30dB
HarmonicDistortion...........................................FMMono3%
..........................................................................FMStereo3%
.....................................................................................AM5%
FrequencyResponse.....................FM180Hz-10kHz/±6dB
StereoSeparation.........................................FM26dB(1kHz)
Stereothreshold..................................................FM23.5dB
DVD SECTION
Audio Performance :
LaserType......................................................Semiconductor
DiscDiameter.........................................................12cm/8cm
VideoS/Nratio...............................................65dB/A-WTD
AudioDAC........................................................24Bits/96kHz
FrequencyResponse...........................4Hz-20kHz(44.1kHz)
.............................................................4Hz-22kHz(48kHz)
.............................................................4Hz-44kHz(96kHz)
DigitalOutput....................................SPDIFCoaxial&Optical
Distortion.........................................................0.5% (1kHz)
MP3 :
MP3-CDbitrate......................32,64,96,128,192,256(kbps)
MP3 - CD sampling frequencies..............32, 44.1, 48(KHz)
Recording format.......................................................JPEG
Video Performances :
VideoDecoding......................................................MPEG-2
VideoDAC....................................................................10Bits
SignalSystem........................................................PAL/NTSC
VideoFormat..........................................................4:3/16:9
CompositeVideoOutput.....................................1.0Vp-p,75Ω
S-VideoOutput.............................................Y-1.0Vp-p,75Ω
..................................................................C-0.286Vp-p,75Ω
MISCELLANEOUS / GENERAL SECTION
Power Supply Rating........................................120V/60 Hz
PowerConsumption..................................................160W
Dimensions(wxhxd)...............430mmx140mmx 420mm
Weight...........................................................................10kg
IR REMOTE CONTROL
EffectiveRange.........................................................>8Meter
NumberofKeys................................................................52
Battery (1.5V).........................................................AAA x 2
SPEAKERS
Front Speakers / Rear (Surround) speaker
System............................................................2-wayshielded
Impedance/ohm................................................................8Ω
Speakerdrivers.....................................................3"fullrange
Dimensions(wxhxd)...................94mmx155mmx88mm
Weight..............................................................0.5Kg/each
Center Speaker
System............................................................2-wayshielded
Impedance/ohm................................................................8Ω
Speakerdrivers.........................................2x3"woofer,piezo
Dimensions(wxhxd)...................250mmx95mmx88mm
Weight...............................................................0.87Kg/each
Passive Subwoofer
System............................................................2-wayshielded
Impedance/ohm................................................................8Ω
Speakerdrivers.........................................2x3"woofer,piezo
Dimensions(wxhxd)................200mmx319mmx345mm
Weight...............................................................5.2Kg/each
1-3

1-4
FM SECTION
DISC SECTION
AC MILLIVOL TME TER AUTO DISTORTION METER
OSCIL LOSCOPE
LOAD 4 OHM
AM-FM STEREO SIGNAL
GENERATOR
SIGNAL GENERATORAC
LOOP
AM LOOP ANT
DUT
INPUT OUTPUT
INPUT
OUTPUT
RL
AM SECTION
............
............
AC MILLIVOL TME TER AUTO DISTORTION METER
OSCIL LOSCOPE
LOAD 4 OHM
AM-FM STEREO SIGNAL
GENERATOR
SIGNAL GENERATORAC
DUT
INPUT OUTPUT
INPUT
OUTPUT
RL
............
............
AC MILLIVOL TME TER AUTO DISTORTION METER
OSCIL LOSCOPE
LOAD 4 OHM
DOLBY TEST METER
SIGNAL GENERATORAC
DUT
INPUT OUTPUT
INPUT
OUTPUT
............
............
AUX SECTION
.......
............
.......
............
.......
............
.......
............
AC MILLIVOL TME TER AUTO DISTORTION METER
OSCIL LOSCOPE
LOAD 4 OHM
DUT
INPUT
............
............
.......
............
.......
............
.......
............
.......
............
DVD TEST DISC
R L C SRSLSWR L C SRSLSW

1-5
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
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
Connectorbox (1MΩ) ..........................................4822 395 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
SERVICE AIDS
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.

1) System Reset
a) Press SETUP button on R/C. TV show setup menu
b) Select the menu using the 1/ 2 /3 /4 buttons on R/C
c) Go Preference setup page to do system reset
d) Press OK or SETUP to confirm or exit setup menu
System, Region code, Tuner, etc. setting procedure
2) Region Code Change
a) Put the player in stop mode and no disc loaded.
b) Press the following key on remote control:
<LANGUAGE> <2> <3> <7> <9> <2> <2> <2>
c) The current region code is displayed on OSD.
d) Then press 4to select the region code you want.
e) Press OK to confirm your selection.
*After the Region Code is changed it is necessary to reset
the system so that the new Region Code will be fully
effective. All customer setting will be lost.
*On top of the maximum number of times allowed for
changing the region code is changed to 25.
*When the counter reach 25, you will not be able to further
change the code until you reset the timer by the Region
Code timer reset procedure
4) Video out change
a) Press SETUP on R/C button
b) Select the menu using the 1/ 2 /3 /4 buttons on R/C
c) Go General setup page select Video out item
d) Press OK or SETUP to confirm or exit setup menu
5) Password Change
a) Press SETUP on R/C button
b) Select the menu using the 1/ 2 /3 /4 buttons on R/C
c) Go Preference setup page select PASSWORD, press 2to
select CHANGE, Press OK.
d) Press the old password (1234) button on R/C.
e) Using the numeric keys (0~9) to enter the new password
f) Press OK or SETUP to confirm or exit setup menu
6) Set Parental Control Level
a) Press SETUP on R/C button
b) Select the menu using the 1/ 2 /3 /4 buttons on R/C
c) Go Preference setup page select PARENAL, press 2to
select 8 ADULT
d) Enter PASSWORD (1234)
*1234 is the default password supplied.
e) Press OK or SETUP to confirm or exit setup menu
7) Checking on the Software version
a) In no disc mode, "NO DISC" will be shown on OSD
b) Press DISC NO, then press 1, 2, 3, OK on the remote
control
c) TV will show the current software version Number on
scree
.MCU 0.6
.VER 0721 1 US 0
8) Upgrading new software
a) Open the CD-door, then insert the CD-R program disc.
b) Close the CD-door.
c) TV will show:-
."disc loading"
."bank30.rom"
."writing" about 6 seconds.
."Done"
CAUTION !
This information is confidencial and may
not be distributed. Only a qualified service
personshouldreprogramtheRegion Code.
3) Tuner area change
a) Put the player in stop mode and no disc loaded.
b) Press the following key on remote control:
<SUBTITLE> <2> <3> <7> <9> <8> <8> <8>
c) The current region code is displayed on OSD.
d) Then press 4to select the region code you want.
e) Press OK to confirm your selection, the system will remain
original status if no any button is pressed within 5 seconds.
* Please refer to the above different tuner area.
2-1
AM 530K 1710K 10K
AM 531K 1620K 9K
AM 531K 1620K 9K
AM 530K 1710K 10K
N/Z AM 531K 1620K 9K
AREA BAND FREQUENCY (Hz) STEP (Hz)
USA FM 87.5M 108M 100K
APAC FM 87.5M 108M 50K
EUROPE FM 87.5M 108M 50K
LATAM FM 87.5M 108M 50K
AUSTRALIA FM 87.5M 108M 50K
2-1

2-2
REPAIR INSTRUCTIONS
2-2
PILIPS MRD300 REPAIR CHART
MAIN UNIT REPAIR CHART
ABCDEFGHI J
ALL FUNCTION
NO WORKING VFD DISPLAY NO SHOW
AND KEY FUNCTION
DVD
NO SOUND POWER SUPPLY NO WORKING AUDIO OUTPUT NO SOUND AUX/TV IN NO SOUND TUNER NO SOUND EAR HEAD PHONE NO SOUND AUDIO LINE NO OUTPUPT DIGITAL LINE NO SOUND
A
ALL FUNCTION
NO WORKING
CHECK ALL SYSTEM
ALL CABLE IS LOOSE
NO
OR BAD INT
PANEL STANDBY LED
SHOW WORKING
NO
RE-INSERT AND FIX
THE CABLE
YES
OR NOT
CHECK BACK POWER
PCB F901 BAD CAUSE
YES CHANGE F901 BAD
DAMAGE
CHECK CN900 12V
+5V RIGHT
YES
CHECK REPAIR
CONTROL PCB IC206
YES
STANDBY CIRCUIT
REPAIR BETWEEN
NO RB906 TO CN 900 AND
CN201 CIRCUIT
CN201 PIN13(PVCC)
CHECK IC902 PIN3=+5V
CHECK IC904 PIN 3=3.3V
CHECK REPAIR
NO
CHECKALL VOLTAGE
CIRCUIT
CORRECT
REPAIR MAIN PCB
BETWEEN IC100 TO
IC107/IC108 CIRCUIT
SHECK IC100 pin2
NO pin3(osc frequency 27MHz)
pin51(121MHz)
3.3V AND 5VGIVE NO
WORK
SWITCH POWER
SUPPLY CIRCUIT(see B)
B
rb201 and rb202CABLE
LOOSE OR BAD INT
CHECK CONTROL PCB
RB201 pin5=+5V
NO
RE-INSERT AND FIX
THE CABLE
YES
PCB POWER SUPPLY
NO
CIRCUIT
YES
CHECK IC100
IC400
NO
CHECK +5V POWER
CHECK TEST CN201
pin4/DATA
SCHECK VFD CONTROL PCB SECTION BAD CAUSE
CHECK TEST CN201
pin6=-24v pin7,8=AC2V
pin5=5V pin2/CE pin3/CLK
YES
SUPPLY CIRCUIT
VFD DISPLAY
NO SHOW
AND KEY FUNCTION
YESYES
DAMAGE
NO

2-3
REPAIR INSTRUCTIONS
2-3
C
DVD
NO VIDEO
CHECK JK301 OK
DVD
NO READING
OR BAD
CHECK CN805 CN806
TO DVD LOADER CABLE
LOOSEOR BAD INT
CHECK IC900 pin3=8V
IC905 pin3=3.3V
YES
CHECK SPIN-M
SLED-M IS RUN
YES
NO
IC903 IC901 pin1=5V
CHECK pickup if light up
Can't OPEN CLES
NO
CHECK Q808 Q807
OK
check IC100 OF IC804
TO CN805
SHECK CN805 PIN1
NO
RF OUT
Q803,Q804 TO CN805
DVD
NO SOUND
CHECK L300~L304
CHECK IC100 AND
ITS AROUND PART
CHAGE JK301
CHECK
BAD
ZD300~ZD309
BAD
OK
0K
CN300
RE-INSERT AND FIX
THE CABLE
NO
CHECK
NO
IC900/IC903/IC901
IC905
CHECK CN802 TO
CHECK CN802 pin1,2
YES
CHECK OPEN-M
YES
DVD LOADER CABLE
LOOSEOR BAD INT
CHECK IC801 pin1,pin7
BAD
NO
RE-INSERT AND FIX
THE CABLE
is HI or LO
NO
is HI or LO
CHECK IC801/pin4,5
The disc changer can't run
CHECK CN803
CHECK CN803 pin1,2
YES
CHECK OPEN-M
YES
DVD LOADER CABLE
LOOSEOR BAD INT
is HI or LO
CHECK IC800 pin1,pin7
BAD
NO
RE-INSERT AND FIX
THE CABLE
CHECK IC800 pin4,5 NO
is HI or LO is HI or LO
YES
CHECK IC800
YES
CHECK CN803
YES
CHECK
YES
CN802
Can't LOAD UP DOWIN
CHECK CN804 TO
CHECK CN804 pin1,2
YES
loda up down-M
YES
DVD LOADER CABLE
LOOSEOR BAD INT
CHECK IC802 pin1,pin7
BAD
NO
RE-INSERT AND FIX
THE CABLE
is HI or LO
NO
is HI or LO
CHECK IC802/pin4,5
CHECK
YES
CN802
YES
YES
CHECK IC803 pin20,21 (11.0582MHz) CIRCUIT
YES
CHECK IC805
OK
CHECK LOADER
OK
CHECK LOADER
OK
CIRCUIT
CIRCUIT
CN805
pin2,5,6,7,9,10,11,12
CIRCUIT
CHECK LOADER

REPAIR INSTRUCTIONS
2-4 2-4
D
ALL VOITAGE
NO OUTPUT
CHECK F901
BAD CAUSE DAMAGE
YES
NO
Check RL901
working or not
Check T903 pin3
approx if +28v Voltage
CHECK D905 AND
Check BR901
no
+30V Voltage
No Output
and RT901
its conjoint part
E
Check IC402,IC502,IC503
Pin4,7,12,15 Voltage=30V
Check IC500 their Voltage
correct is 3.3V 2.5V
YES
Check RL901 and
its conn circuti
YES Check T903,IC903,IC904,
SN901,D902.D906,D907,
NO
D905and their conjoint part
YES
Repair Between IC1000
IC402 IC502 IC503 to
Check IC100 and its Check Between IC500 to
Check CN500 and its
conjoint part
IC100 Circuit
NO
conjoint part
Audio Output
No Sound
YES
POWER SUPPLY
NO WORKING
+6V Voltage
No Output
+12V Voltage
No Output
-24V Voltage
No Output
CHECK D906 AND
its conjoint part
CHECK D907 AND
its conjoint part
CHECK D908 AND
its conjoint part
yes
Check repair in 3.3V 2.5V
net its conjoint part NO
NO
and IC403 circuit
Repair Between IC503
L/R channel
No Sound to JK500 and IC500
RS/center channel
No Sound
LS/SUB channel
No Sound
circuit
Repair Between IC502
to JK500 and IC500
circuit
Repair Between IC402
to JK500 and IC500
circuit
F
Check JK400
loose bad INT
Check IC 401 pin16=+7V
pin7=-7V offirm correct
NO
Aux/Tv in
No Sound
Check +7v and -7v
give circuit NO
Check Repair Between
IC401 to JK300 and IC403
Check Repair IC403 to
IC100 tata
NO
YES
Circuit

2-5 2-5
REPAIR INSTRUCTIONS
G
Tuner
No Output
Check
CN701pin 11=5V
NO
NO
Check T105
OK
YES
VT section circuit
see F
Ceck IC152 data From
pin5/CL,pin6/DO
NO
Check Repair Between
RB101 to main pcb IC400
NO
and IC400 Circuit
Check tuner vt From c161
NO low Frequency=1.5-2.0v
High Frequency=8.0-9.0V
RB101pin3/ce,pin4DI,
A:Repair AM osc stion(T003)or
(Between IC101Pin30 to IC152 pin13 circuit)
Check IC152 osc input
VT No Change
NO
CCheck AM IF
(T102/CF103)
Check IC101audio ooutput
IC101 pin16 to RB101 pin13(R-CH)
IC101pin17 to RB101pin15(L-CH)
NO
pin13=-AM input
pin14--FM input
H
Check Between RB501 to
CN400 Cable loose or INT
Check Between
IC412 to IC410 and
NO
RE-INSERT AND FIX
THE CABLE
YES
Check IC403 and
its around
NO
Check IC412 circuit
Ear Head phone
No sound
YES
pin12=12V
Check CN702 pin1,3
its audio output
B:Repair FM osc section
(Between EF001 Pin8 to IC152 pin14 circuit)
Check IC152
OK
Check main pcb of Tuner input Circuit
(Between IC401pin4 and pin11)
OK
yes
Check FM IF output
Q101,Q102
NO FM function
IC408 Circuit
I
Check IC403 to IC404
IC405,IC406 Circuit
Check IC404,IC405
IC406 to IC407 Circuit
OK
Check Q402,Q405,Q404
Audio Line
No sound
YES
Circuit
J
At DVD mode Check
Q288"C"=5V
Check Between cn300 to
Av pcb cn300 and IC100
OK
Check IC100 circuit
Digital Line
No sound
ok

3-1
DISASSEMBLY INSTRUCTIONS
1) OpentheDVDTraybyusingtheOpen/CloseButtonwhile
the Set is ON and disconnect the mains supply after
removing the Tray Cover. (Figure 1)
Note: Ifthisis notpossible,theDVD Trayhastobeopen
manually.
Take a mini screw driver about 2mm diameter and make
a marking 24mm from the tip as shown in figure 2.
2)Remove thetraycover asshown inFigure1 andclose the
tray manually by pushing it back in.
3) Loosen 9 screws and remove the Top Cover by lifting the
rearportionupwardsbeforeslidingitout towardstherear.
-5screws on the back
-2screws each on the left & right side
4) Loosen 16 screws & lift up the top edge of Front Panel
assembly to free some catches before sliding it out
towards the front.
-3screws on the bottom in figure 3 (A)
- 1 screw each on the left & right side in figure 3 (A)
- 11 screws in figure 4 (B) & (C)
Dismantling of the Key Board Assembly
3-1
Dismantling of the Main Board (include servo & amplifier & MPEG)
1) At first, Should loosen 8 screws (D) on the back panel as shown in figure 6.
2) Loosen 5 screws (E) on the back panel as shown in figure 6.
3) Loosen 6 screws (F) on main board as shown in figure 5.
4) Remove the space support on main board (G) as shown in figure 5.
5) Remove connector at main board.
Figure 1
Figure 3
A
BFigure 4
C
Dismantling of the Tuner Board & YUV Board
1) Loosen 3 screws (J) on the back panel and tuner board as shown in figure 6.
2) Loosen 4 screws (H) on the back panel as shown in figure 6.
D
E
J
H
Figure 6
Figure 5
F
G
24mm
2mm
Figure 2
IMPORTANT!
To avoidoflaser diodedamageduringrepairing, please
make sure short circuit the protect point first.

3-2
3-2
Figure 7
Figure 8
Dismantling of the Power board.
1) Loosen 4 screws (K) on power board as shown in figure 7.
2) Remove 2 spacer support in power board.
Dismantling of the Main Board & Power Board on the Bracket
1) Loosen 3 screws (M) as shown in figure 9.
2) Loosen 5 screws (B) as shown in figure 4.
Dismantling of the DVD Moudle
1) Loosen 7 screws (L) as shown in figure 8.
L
KM
Figure 9

4-1
BLOCK DIAGRAM
4-1
ESS6628
AC3/DTS Deckde
TV ENCODE
Servo DSP
78E52B ESS6603
5 DISK Cortrol DVD Servo AFE Dtat Sheet
u-com
5disk
FR
FL
C
SR
SL
SUB
WM8772
6CH AUDIO D/A FILTER
LT/RT
LO/RO
FL
FR
C
SL
SR
SUB
FL
FR
C
SL
SR
SUB
FL
FR
C
SL
SR
SUB
PT2259
LO
RO
LO
RO TP2258
LT
RT
2CH AUDIO A/D
A/D TATA
2CH VOL
EARPHONE
LINE PUT
TUNER FM
AM
LA1837
PLL:LA72131
AUDIO INPUT
SELECT
CD4052 AUX
TV
OUTPUT PCB
Y
PB
PR
COAXIAL
OPTICAL POWER BOARD
PANNEL BOARD
PIC16C54C
PT6311
VFD
memory
flash 8M
sdram 64M
EXPAND I/O PORT
74LS374*2
TDA308
TDA505
TDA505TDA505
CVBS
S-V

4-2 4-2
WIRING DIAGRAM
SUBSL SR C FL FR
CN801CN804 CN803 CN800CN802 CN806 CN805
CN300
CN702
JK301 JK400 JK500
CN701
CN902
CN900
CN500
CN201
CN400
FM ANTAM ANT
SUB
SL SR
CFL FR
TV
AUX TV
AUDIO OUT
AC120V /60Hz IN
MAIN PCB
POWER PCB
CONTROL PCB
KEY PCB
VFD
RB108
CON2
CON1
RB201 RB501
TUNER PCB
CN902

CONTROL / EARPHONE / YUV / KEY
BOARD
TABLE OF CONTENTS
FTD Display Pin Assignment ..........................................5-1
Pin Connection................................................................5-1
Circuit Diagram................................................................5-2
PCB Layout Top View ......................................................5-3
PCB Layout Top & Bottom View......................................5-4
Parts List..........................................................................5-5
5-1 5-1
FTD DISPLAY PIN ASSIGNMENT
Pin Connection
Pin No. 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
Connection F2 F2 NP NP P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 NX
Pin No. 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Connection NX NX NX NX NX NX 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NP NP F1 F1
Note:
Fn: Filament pin nG: Grid pin Pn: Anode pin NP: No pin NX: No extended pin
a
b
h j k
f
g m
e r p n c
d
( 2G- 11G )
Dp
Col
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
1G
1G
2G
2G
3G
3G
4G
4G
5G
5G
6G
6G
7G
7G
8G
8G
9G
9G
10G
10G
12G
12G
11G
11G
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
h
j
a
b
k
f
g
m
c
P12
P13
P14
P15
P16
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
e
r
p
n
d
CD
PRESET TRK
V

5-2 5-2
CIRCUIT DIAGRAM - CONTROL & EARPHONE & YUV & KEY BOARD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
DP202
ZD202
6V
C217
100UF
C224
104
C218
100UF/50V
SW1
1SW2
2SW3
3SW4
4DOUT
5DIN
6NC
7CLK
8STB
9K1
10 K2
11 K3
12 K4
13
VDD
14 SG1/K S1 15 SG2/K S2 16 SG3/K S3 17 SG4/K S4 18 SG5/K S5 19 SG6/K S6 20 SG7/K S7 21 SG8/K S8 22 SG9/K S9 23 SG10/KS10 24 SG11/KS11 25 SG12 26
SG13 27
SG14 28
SG15 29
SG16 30
SG17/GR12 31
SG18/GR11 32
VDD 33
VEE 34
SG19/GR10 35
SG20/GR9 36
GR8 37
GR7 38
GR6 39
GR5 40 GR4 41 GR3 42 GR2 43 GR1 44
VDD 45
LED5 46 LED4 47 LED3 48 LED2 49 LED1 50
GND 51
OSC 52
IC205
PT6311
R22856K
RR249
10K
R26710K
TA225
TA221
TA213
D208
1N4148
D211
1N4148
D209
1N4148
R248
10K R247
10K
R250 10K
1
2
3
SN202
C219
100UF
C225
104
TA222
TA216
TA223
TA217
TA219
TA220
R260 100
R273
560 R257 100
R258 100
R259 100
C228 15PC229 15P
C227 15P
R271 10K
POWER 1
SOURCE 2
GND 3
RESET 4
GND 5
PLAY 6 OPEN 7
F1 8 IR 9
F2
10 LOADER 11 OFF 12 F3 13 VDD 14 XIN 15 XOUT 16 PCON 17 MUTE 18
IC206
MCU2116
TA224
R241
10K
Q205
A733
Q204
A733 Q206 A733
R243
10K R245 10K
R251 10K
R252 10K
R253 10K
R254 10K
R255 10K
C232 10UF
D210
1N4148
XL202 4M R274
100K
C23422P
C233 22P
C223 100UF
C226
104
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RB201
R268
22K
R266 10K
R272
560
LD207 Q207
C945
Q203
A733
R230
10K
R224 10K
R225 10K
R226 10K
LD206LD202 LD203 LD204LD205
R231560 R232560 R233560 R235560
R234 560
TA214 TA215 TA218
D207
1N4148
TA212 TA211 TA207
R275
100
R276 100
L281 10UH
VOL202
C231
100 C230
100
R269 10K
R270
10K
A
1
2
3
4
1
2
3
4
BCDEF
ABCDEF
C217 D2
C218 E2
C219 F1
C223 A4
C224 D1
C225 F1
C226 A4
C227 C2
C228 C2
C229 C2
C230 C2
C231 B1
C232 A3
C233 A4
C234 A4
D207 D4
D208 D3
D209 D4
D210 A3
D211 D4
DP202 F2
IC205 E2
IC206 A3
L281 A1
LD202 D1
LD203 D1
LD204 E1
LD205 D1
LD206 E1
LD207 B2
Q203 A2
Q204 C4
Q205 C4
Q206 C4
Q207 B2
R224 A2
R225 A2
R226 A2
R228 D2
R230 A2
R231 D2
R232 D2
R233 D2
R234 D1
R235 E1
R241 C3
R243 C3
R245 C3
R247 C3
R248 C3
R249 C3
R250 C3
R251 A3
R252 A3
R253 A3
R254 A3
R255 A3
R257 C2
R258 C2
R259 C2
R260 F1
R266 E1
R267 E1
R268 E1
R269 B1
R270 B2
R271 C2
R272 C2
R273 A2
R274 A4
R275 A4
R276 A4
RA224 A3
RB201 A1
SN202 F1
TA207 C4
TA211 C4
TA212 C4
TA213 C4
TA214 C4
TA215 C4
TA216 C4
TA217 C4
TA218 C4
TA219 D3
TA220 D4
TA221 D4
TA222 A2
TA223 A3
TA224 A3
TA225 A2
XL202 A4
ZD202 E1

5-3
PCB LAYOUT - CONTROL & EARPHONE & YUV BOARD
5-3
1
ABCDEF
2
1
2
ABCDEF
C216 E2
C217 E2
C217 E1
C218 E2
C218 E1
C219 B1
C220 E2
C223 F1
C224 E1
C225 C1
C226 F1
C227 D1
C227 D2
C228 D1
C229 D1
C230 F1
C231 F1
C232 F2
C233 E1
C234 F1
C235 B1
C280 E2
C288 E2
C289 E2
D207 C1
D208 C1 
D209 C1
D210 E1
D211 C1
DP202 C1
FB203 E2
FB204 E2
FB205 E2
IC205 D1
IC206 F1
JK202 D2
JK502 E2
JW216 C2
JW218 B1
JW229 B2
JW230 A2
JW233 A2
JW234 C2
JW235 C2
JW236 C2
JW237 C2
JW238 C2
JW239 D2
JW240 C2
JW241 B1
JW242 B2
JW243 C2
JW244 D2
JW245 E1
JW246 F1
JW247 F2
JW248 E1
JW249 C1
JW250 C2
JW251 D2
JW252 C2
JW253 D2
JW254 D2
JW255 D1
JW256 E2
JW257 E2
JW258 E2
JW259 E1
JW260 E2
JW261 D1
JW262 F1
JW263 E2
JW264 B2
JW265 F1
JW266 F1
JW267 B1
JW268 E2
L281 E1
LD202 B1
LD203 A1
LD204 A1
LD205 A1
LD206 B1
LD207 A1
Q203 B1
Q204 C1
Q205 C1
Q206 C1
Q207 E1
Q288 D2
R230 B1
R231 B1
R232 B1
R233 B1
R234 B1
R235 D2
R237 D2
R238 D2
R239 D2
R241 C2
R242 C2
R243 C2
R244 C2
R245 C2
R246 C1
R247 C1
R248 C1
R249 C1
R250 C1
R251 E1
R252 E1
R253 E1
R255 E1
R256 D1
R257 D1
R258 D1
R259 D1
R260 B1
R266 D1
R267 D1
R268 D1
R269 E2
R270 E2
R271 E2
R272 E2
R273 B1
R274 F1
R275 E1
R276 F1
R283 E2
R284 E2
R285 E2
R286 E2
R287 E2
R288 E2
RB102 E2 
RB201 E1
RB501 E2
SN202 C1
TA207 A2
TA211 A2
TA212 A2
TA215 B1
TA219 B2
TA233 A2
TA225 A1
XL202 F1
ZD202 D1

PCB LAYOUT TOP & BOTTOM VIEW- KEY BOARD
A
A
B
A
B
BCDEF
ABCDEF
JW203 B1
JW204 E1
JW205 F1
TA213 D1
TA214 C1
TA216 C1
TA217 D1
TA218 D1
TA220 D1
TA221 D1
TA222 E1
TA224 C1
CON1 A1
JW201 A1
JW202 B1
5-4 5-4
PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Voltage 3.5 9.78 3.5 3.5 0 4.96 4.94 9.77 9.76 1.4 0.94 0 0.05 8.67 8.68 4.27 4.27 4.26 4.26 3.19
PIN NO 21 22 23 24 25 26 27 28 29 30
Voltage 3.19 2.8 3.24 0.33 0.02 3.59 3.59 2.58 3.58 1.7
PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Voltage 2.5 0.17 0.17 4.2 4.96 4.18 0.05 0.05 0.05 4.95 0.01 4.95 0.01 2.4 4.95 1.05 1.05 3.47 0 2.45
IC101 (LA1837)
IC152 (LC72131M)
VOLTAGES

5-5 5-5
MISCELLANEOUS
ELECTRICAL PARTS LIST - CONTROL & EARPHONE & YUV & KEY BOARDS
DP202 9965 000 15923 VFD VA92.2X9mm HNAA12SM33
FB203 9965 000 12470 BEAD FERITE 100 OHM/ AT 100MHz
FB204 9965 000 12470 BEAD FERITE 100 OHM/ AT 100MHz
FB205 9965 000 12470 BEAD FERITE 100 OHM/ AT 100MHz
JK202 9965 000 20273 TDSK JACK DLT1111
JK203 9965 000 15924 RCA-414 JACK
JK502 9965 000 15925 PHONE JACK D6.4 9 PIN
L281 9965 000 15931 INDUCTOR 100uH 10%
LD202 9965 000 21187 LED 3DIA GREEN ROUND LEAD 10mm
LD203 9965 000 21187 LED 3DIA GREEN ROUND LEAD 10mm
LD204 9965 000 21187 LED 3DIA GREEN ROUND LEAD 10mm
LD205 9965 000 21187 LED 3DIA GREEN ROUND LEAD 10mm
LD206 9965 000 21187 LED 3DIA GREEN ROUND LEAD 10mm
LD207 9965 000 19404 LED 3DIA RED ROUND LEAD 10mm
TA207 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA211 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA212 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA213 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA214 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA215 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA216 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA217 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA218 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA219 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA220 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA221 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA222 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA223 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA224 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
TA225 4822 276 13648 AI TACT SW SKHVBE3520 ALPS
SN201 9965 000 15935 IRT SENSOR RIM B38F
VOL202 9965 000 12539 ROTARY ENCODER EC16B24204
XL202 9965 000 15932 CRYSTAL 4.5MHz HC-49/S
DIODES
D207 4822 130 30621 1N4148
D208 4822 130 30621 1N4148
D209 4822 130 30621 1N4148
D210 4822 130 30621 1N4148
D211 4822 130 30621 1N4148
ZD202 9965 000 12554 ZENER 3.8-4.0V 0.5W
TRANSISTORS & INTEGRATED CIRCUITS
Q203 4822 130 63876 2SA733R
Q204 4822 130 63876 2SA733R
Q205 4822 130 63876 2SA733R
Q206 4822 130 63876 2SA733R
Q207 4822 130 41198 2SC945P
Q288 4822 130 41198 2SC945P
IC205 9965 000 12550 PT6311(PTC)
IC206 9965 000 15934 IC CTM8B56EN
Note : Only the parts mentioned in this list are normal service spare parts.