Philips MX3550D/37S, MX3600D/37, MX3700D/37S, MX3800D/22S, MX3800D/21H Service Manual

CLASS 1

LASER PRODUCT

Service

Service

Service

ServiceService

MX3550D/37S & MX3600D/37

©

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 KC-ET0227 Service Audio Printed in The Netherlands Subject to modification

GB

3139 785 30067

DVD Receiver

Version 1.3

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 & Repair Instructions ....................... 2

Disassembly Instructions & Service positions .............. 3

Block & Wiring Diagram ................................................ 4

Key/ Volume/ LED Board ............................................... 5

Tuner Board ................................................................... 6

DVD Module: KIT572SE .......................................... 7

KIT772SI ......................................... 7A

Main Board (Include Headphone Board) ...................... 8

Scart/ RGB Board ..........................................................9

Power Board ................................................................ 10

Mechanical Exploded View & Parts List ...................... 11

Document History ........................................................ 12

For repair information on the Subwoofer please refer to Service

Manual of Active Subwoofer SW3600 12NC: 3139 785 30069 and

SW3700/SW3800 12NC: 3139 785 30068

Service Manual

COMPACT

DIGITAL AUDIO

MX3700D/37S & MX3800D/21H/22S

1-2

LOCATION OF PC BOARDS

VERSION VARIATION:

POWER PCB

SCART/RGB

MAIN PCB

TUNER PCB

SERVO PCB

KEY PCB

PHONE
PCB

LED PCB

Type /Versions: MX3550D MX3600D MX3700D MX3800D

/37S /37 /37S /21H /22S /33S /35S

RDS function x

Progressive scan

Scart board x

RGB board x x x x x x

Power PCB (110V~127V/120V) x x x

Power PCB (220V~240V) x x x x

Features &
Board in used

Type /Versions: MX3550D MX3600D MX3700D MX3800D

/37S /37 /37S /21H /22S /33S /35S

SW3600/17S x x

SW3700/17S x

SW3800/00S xxx x

Subwoofer

SPECIFICATIONS

AMPLIFIER SECTION

Power Output

- Stereo mode (DIN)................................................2 x 50 W

- Surround mode (1 kHz)............................50 W RMS/channel

Total Harmonic Distortion...........10 % at rated power (1 kHz)

Frequency Response .........................180 Hz-14 kHz/±1 dB

Signal-to-Noise Ratio........................................> 65dB(CCIR)

Input Sensitivity...........................................................400 mV

DVD SECTION
Audio Performance :

Laser Type......................................................Semiconductor

Disc Diameter.........................................................12cm/8cm

Video S/N ratio...............................................65 dB/A - WTD

Audio DAC........................................................24 Bits/96 kHz

Frequency Response...........................4 Hz-20 kHz (44.1kHz)

............................................................. 4 Hz-22 kHz (48 kHz)

............................................................. 4 Hz-44 kHz (96 kHz)

Digital Output....................................SPDIF Coaxial & Optical

Distortion.........................................................0.5% (1kHz)

MP3 :

MP3 - CD bit rate......................32, 64, 96, 128, 192, 256(kbps)

MP3 - CD sampling frequencies..............32, 44.1, 48(KHz)

Recording format.......................................................JPEG

For /37 and /37S only

TUNER SECTION

Tuning Range................. FM 87.5 -108 MHz (100 kHz steps)

..........................................AM 530 - 1700 kHz (10 kHz steps)

26 dB Quieting Sensitivity......................................FM 20 dB

26 dB Quieting Sensitivity..............................AM 5000 uV/m

Image Rejection Ratio...........................................FM 25 dB

................................................................................AM 28 dB

IF Rejection Ratio..................................................FM 60 dB

................................................................................AM 24 dB

Signal-to-Noise Ratio..............................................FM 55 dB

................................................................................AM 35 dB

AM Suppression Ratio...........................................FM 30 dB

Harmonic Distortion...........................................FM Mono 3%

..........................................................................FM Stereo 3%

.....................................................................................AM 5%

Frequency Response.....................FM 180 Hz-10kHz/±6 dB

Stereo Separation.........................................FM 26 dB(1 kHz)

Stereo threshold..................................................FM 23.5 dB

MISCELLANEOUS / GENERAL SECTION

Power Supply Rating...........................................120V/60 Hz

Power Consumption.................................................. 250 W

Dimensions (w x h x d)............... 435 mm x 81 mm x 360mm

Weight...........................................................................5.1 kg

1-3

VIDEO PERFORMANCES :

Video Decoding......................................................MPEG-2

Video DAC....................................................................10 Bits

Signal System........................................................PAL/NTSC

Video Format..........................................................4:3/16:9

Composite Video Output.....................................1.0Vp-p,75

Ω

S-Video Output.............................................Y - 1.0Vp-p,75Ω

..................................................................C - 0.286Vp-p,75Ω

IR REMOTE CONTROL

Effective Range.........................................................> 8 Meter

Number of Keys................................................................45

Battery (1.5V)............................................................AA x 2

SPEAKERS
Front Speakers / Surround speaker

System............................................................2-way shielded

Impedance/ ohm................................................................8Ω

Speaker drivers..................................3" full range, 1" piezo

Dimensions (w x h x d)................... 96 mm x 155 mm x 95 mm

Weight.............................................................. 0.45 Kg/each

Center Speaker

System............................................................2-way shielded

Impedance/ ohm................................................................8Ω

Speaker drivers...................................3" full range, 1 piezo

Dimensions (w x h x d)................250 mm x 94 mm x 80 mm

Weight............................................................... 0.92 Kg/each

For /21H, /22S, /33S, /35S only

TUNER SECTION

Tuning Range................. FM 87.5 -108 MHz (50 kHz steps)

.............................................MW531 - 1602 kHz (9 kHz steps)

26 dB Quieting Sensitivity......................................FM 20 dB

26 dB Quieting Sensitivity.............................MW 5000 uV/m

Image Rejection Ratio...........................................FM 25 dB

...............................................................................MW 28 dB

IF Rejection Ratio..................................................FM 60 dB

...............................................................................MW 24 dB

Signal-to-Noise Ratio..............................................FM 55 dB

...............................................................................MW 35 dB

AM Suppression Ratio...........................................FM 30 dB

Harmonic Distortion...........................................FM Mono 3%

..........................................................................FM Stereo 3%

....................................................................................MW 5%

Frequency Response.....................FM 180 Hz-10kHz/±6 dB

Stereo Separation.........................................FM 26 dB(1 kHz)

Stereo threshold..................................................FM 23.5 dB

MISCELLANEOUS / GENERAL SECTION

Power Supply Rating.................................220 - 240V/50 Hz

Power Consumption.................................................. 160 W

Dimensions (w x h x d)............... 435 mm x 81 mm x 360mm

Weight...........................................................................7.1 kg

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 (1M

Ω) ..........................................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 spécia­listes agréés, seuls habilités à réparer
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.

Hence in total, reprograming will be done by way of the

remote control. It should run as below :-

a) Put the player in stop mode. No disc loaded.

b) Press the following key on remote control:

For MX3550D/37S (USA)

<PLAY> <159> <111> <002> <08> <PLAY>

For MX3600D/37 (USA)

<PLAY> <159> <111> <002> <08> <PLAY>

For MX3700D/37S (USA)

<PLAY> <159> <111> <002> <08> <PLAY>

For MX3800D/21H (AP)

<PLAY> <159> <331> <002> <08> <PLAY>

For MX3800D/22S (Europe)

<PLAY> <159> <221> <002> <08> <PLAY>

For MX3800D/33S (Korea)

<PLAY> <159> <311> <002> <08> <PLAY>

For MX3800D/35S (China)

<PLAY> <159> <631> <002> <08> <PLAY>

∗ 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

1) System Reset

a) Press "SYSTEM" button on R/C. TV show "SETUP"

b) Select the menu using the "

" and " " button on R/C

c) Go feature setup page to do system reset

2) Region Code Change

2-1

System, Region code, Tuner, etc. setting procedure

After replacement / repair of the MPEG board, the customer

setting and the region code may lost. Changing the Region

code will put the player back in the state which it has left the

factory.

Region Code

1 USA

2EU

3 AP, Korea

4 Australia, NZ, Latam

5 RUSSIA, INDIA

6 CHINA

TV System

1 NTSC

2PAL

3AUTO

Menu/ Audio Subtitle (AS) Language

1 English

2 English

3 English

4 English

AFS

001 LX3000D/LX3500D

002

MX3550D/MX3600D/MX3700D/

MX3800D

oem derivative

08

.

region code = 1 digit

.

tv system = 1 digit

.

"as/menu lang" = 1 digit

.

"AFS" = "architechture Feature Set" = 3 digits

This field is used to define the architecture / features sets for

each product.

.

"oem derivative" = 2 digit

This field is use to define the OEM set. This will affect the

background display.

3) Region code change timer reset

Press below key to reset the timer :

a) In DISC source, stop mode and no disc in tray.

b) Press R/C "Play -159-PLAY" to reset timer to 25

4) Tuner area change

a) Press the "OPEN/CLOSE" button to openthe set's door

b) Press "1" "5" "9" button by using R/C.

c) TV Show "TUNER AREA ADJUST"

d) Select the tuner area you want by using the "

" and

"

" button on R/C, then press "OK" to confirm. TV show

" TUNER AREA CHANGED"

If you didn't press it in five seconds, the system will remain

original status.

USA FM 87.5M 108M 100K

AM 530K 1700K 10K

APAC FM 87.5M 108M 50K

AM 531K 1602K 9K

EUROPE FM 87.5M 108M 50K

AM 531K 1602K 9K

LATAM FM 87.5M 108M 50K

AM 530K 1710K 10K

AUSTRALIA FM 87.5M 108M 50K

/ NZ AM 531K 1602K 9K

Note :-

(a) Please refer to the above different tuner area.

5. Video Out Change

a) Press "SYSTEM" on R/C button

b) Select the menu using the " " and " " button on R/C

c) Go picture setup page select Video out item.

6. Password Change

a) Press "SYSTEM" on R/C button

b) Select the menu using the " " and " " button on R/C

c) Go feature setup page select "PASSWORD". TV show

"ENTER CODE". Press 4 times of "STOP" button on R/C.

d) Select "PARENTAL" "8 ADULT" on TV.

e) Enter PASSWORD to "1234"

∗ "1234" is a default password supplied.

6. Check software version

a) Open the CD door.

b) Press "123" and "OK" on the remote control.

c) TV will show the version on screen.

7. 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"

∗

The latest upgraded is in version VER0410.

2-1

CAUTION !

This information is confidencial and may
not be distributed. Only a qualified service
person should reprogram the Region Code.

AREA BAND FREQUENCY (Hz) STEP(Hz)

2-2 2-2

Confirm Correct

REPAIR INSTRUCTION

2-3 2-3

REPAIR INSTRUCTION

3-1

DISASSEMBLY INSTRUCTIONS

1) Open the DVD Tray by using the Open/Close Button
while the Set is ON and disconnect the mains supply after
removing the Tray Cover.

Note: If this is not possible, the DVD Tray has to be open

manually.

Take a mini screw driver about 2mm diameter and make
a marking 24mm from the tip as shown in figure 2. place
the set on its side, insert the mini screw driver till the
marking and slide it towards the right as shown in figure
1 until the Tray moves out of the Front Panel.

Dismantling of the Front Panel Assembly

2) Return the set to its upright position and remove the Tray
Cover as shown in Figure 3 and close the tray manually
by pushing it back in.

3) Loosen 9 screws and remove the Top Cover by lifting the
rear portion upwards before sliding it out towards the rear.

-5 screws on the back

-2 screws each on the left & right side

4) Loosen 7 screws & lift up the top edge of Front Panel
assembly to free some catches before sliding it out
towards the front.

-4 screws on the bottom

-1 screw "C" on the inside as indicated in Figure 5.

-1 screw each on the left & right side

Figure 3

Figure 2

3-1

Marking just outside the slot
on the rear cabinet.

RepeatRepeat

Figure 1

24mm

2mm

Dismantling of the Main Board

1) Loosen 5 screws "B" on the top of main board as shown in figure5.

2) Loosen 9 screws "D" at the back panel as shown in figure 6.

3) Remove all connectors on the RGBScart and main board.

Figure 5

RGB Jack use for MX3600/37 ;
MX3700/37S

Scart Jack use for MX3800/22S only

Figure 7

E

Figure 6

D

F

Dismantling of the Tuner Board

1) Loosen 4 screws "E" on the bottom cover as shown in
figure 7.

3) Loosen 4 screws "F" at the top of the Power Board as
shown in figure 8

Figure 8

1) Loosen 4 screws "A" to remove the Servo Board from
the DVD Module as shown in figure 4

A

Figure 4

Note: Do not lost the limited
parts of the Servo board

Dismantling of the Servo Board

B

C

3-2

SERVICE POSITIONS

Service position A
Loosen 4 screws "K" to remove the DVD module as shown
below

Service position C

Service position B

Note: In some service positions the components or copper patterns of one board may risk touching its neighbouring pc
boards or metallic parts. To prevent such short-circuit use a piece of hard paper or other insulating material between them.

3-2

K

Dismantling of the Tuner PCB

1) Loosen 1 screw "G" and 3 solder points "H" to remove the
sheild cover.

2) With the Main Board already dismantle, remove the
Tuner board / sheild bracket assembly by unsolder the
wire connector and 6 points "H".

Figure 9

G

Figure 10

I

Figure 11

J

Figure 12

3) Separate the Tuner board by unsoldering 4 points "J".

H

4-1

BLOCK DIAGRAM

4-1

For /37 and /37S only

For /22S only

4-2

WIRING DIAGRAM

4-2

RGB PCB (For /37/37S only)

SCART PCB (For /22S only)

LVA0193C001

RB2001

KEY / VOLUME / LED BOARD

TABLE OF CONTENTS

FTD Display Pin Assignment........................................... 5-1

Pin Connection ................................................................ 5-1

IC Interbnal Block Diagram ............................................. 5-2

Circuit Diagram ................................................................5-3

PCB Layout Top View ......................................................5-4

PCB Layout Bottom View ................................................5-4

Electrical Parts List ..........................................................5-5

5-1

FTD DISPLAY PIN ASSIGNMENT

PIN CONNECTION

## Note ##

1. Fn: Filament pin

2. nG : Grid pin

3. Pn : Anode pin

4. NP : No Pin

5. NC : No Connection pin

PIN NO.

CONNECTION

1

F
1

2

F
2

3

N
P

4

1
G

5

2
G

6

3
G

7

4
G

8

5
G

9

6
G

1
0
7
G

1
1
8
G

1
2
9
G

1
3

10

G

1

4
11
G

1
5
N
C

1
6
N
C

1
7
P
1

1
8
P
2

1
9
P
3

2
0
P
4

2
1
P
5

2
2
P
6

2
3
P
7

2
4
P
8

2
5
P
9

2
6
P

10

2
7
P

11

2
8
P

12

2
9
P

13

3
0
P

14

3
1
P

15

3
2
P

16

3
3
N
P

3
4
F
2

3
5
F
2

5-1

a

b

hjk

f

g

m

e

rpn

c

d

(4G-11G)

3G 2G 1G

4G 5G 6G 7G

8G 9G

10G 11G

P1
P2
P3
P4
P5
P6
P7
P8

P9
P10
P11
P12
P13
P14
P15
P16

1G 2G 3G 4G 5G 6G 7G 8G

9G

10G 11G

Program

Sleep

DIGITAL

ProLogic

Stereo

L

C

R

SL

Sub

SR

a
b
h

j
k
f

g

m

e
r
p
n
c
d

a
b
h

j

k

f

g
m
e

r

p
n

c

d

a
b
h

j
k
f

g

m

e
r
p
n
c
d

a
b
h

j
k

f
g

m

e

r
p

n

c
d

a
b
h

j
k
f

g

m

e
r
p
n
c
d

a
b
h

j
k
f

g

m

e
r
p
n
c
d

a
b
h

j
k
f

g

m

e
r
p
n
c
d

a
b
h

j
k
f

g

m

e
r
p
n
c
d

Col

Dp

MHz
KHz

L

C

R

SL

Sub

SR

WDT TIME

OUT

8

STACK 1
STACK 2

EPROM/ROM

512 X 12 TO

2048 X 12

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

WATCHDOG

TIMER

CONFIGURATION WORD

OSCILLATOR/

TIMING &

CONTROL

GENERAL
PURPOSE
REGISTER

FILE

(SRAM)

24, 25, 72 or

73 Bytes

WDT/TMR0

PRESCALER

OPTION REG.

“OPTION”

“SLEEP”

“CODE

PROTECT”

“OSC

SELECT”

DIRECT ADDRESS

TMR0

FROM W

FROM W

“TRIS 5”

“TRIS 6”

“TRIS 7”

FSR

TRISA PORTA

TRISB

PORTC

TRISC

PORTB

FROM W

T0CKI

PIN

9-11

9-11

12

12

8

W

4

4

4

DATA BUS

8

8

8

8

8

8

8

ALU

STATUS

FROM W

CLKOUT

8

9

6

5

5-7

OSC1 OSC2 MCLR

LITERALS

PC

“DISABLE”

2

RA<3:0> RB<7:0>

RC<7:0>

(28-Pin

Devices Only)

DIRECT RAM

ADDRESS

Serial

Data

interface

LED

Driver

OSC

Timming

Generator

Segment

Driver/

Grid

Driver/

Key Scan

Output

Dimming

Circuit

Grid

Driver

Control

Genaral

Input

Register

Key Matrix

Memory

Genaral

Input

Register

SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8

SG9/KS9
SG10/KS10
SG11/KS11
SG12/KS12
SG13/GR16
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9

GR1
GR2
GR3
GR4
GR5
GR6
GR7
GR8

VEEGNDVDDK1

LED 5

LED 4

LED 1

SW 1

D

IN

D

OUT

CLK
STB

V

DD

OSC

R

SW 2
SW 3
SW 4

LED 2
LED 3

K2 K3 K4

CF745 INTERNAL BLOCK DIAGRAM PT6311 INTERNAL BLOCK DIAGRAM

5-2

5-2

5-3 5-3

12 34

12 34

A

B

C

D

A

B

C

D

C201 A1
C202 A1
C203 A1
C204 C3
C205 C3
C207 B1
C208 B1
C209 B1
C212 D3
C213 D3
C214 A4
C215 A4
C295 D3
C991 D2
C992 D1
C993 D1
C994 D1
D201 C2
D202 C2
D203 C3
D204 B4
D985 D2
DP251 A2
IC251 B2
IC981 D2
LD20 C4
Q202 C2
Q203 C2
Q204 C3
R201 A1
R202 A1
R203 A1
R204 B1
R205 B1
R206 B1
R213 A1
R214 A2
R216 C3
R223 A4
R224 A4
R227 C3
R228 B1
R229 B1
R230 B1
R231 C1
R232 B4
R234 C2
R236 C2
R238 D1
R239 D1
R240 D1
R241 A1

R242 D3
R244 B3
R225 D3
R245 C3
R246 C3
R250 C2
R251 C2
R984 D1
R987 D1
R988 C2
R989 D2
R991 D2
R992 D2
R993 D2
R994 D2
R995 D2
RB201 B4
RB202 D3
RB203A C3
RB203B C4
RB204A C3
RB204B C4
SN201 C3
TA201 C4
TA202 C4
TA203 C1
TA204 C2
TA205 B2
TA206 C2
TA207 C2
TA208 C2
TA209 C2
TA210 C2
TA211 B4
TA212 A4
XL981 D1
ZD201 D3
ZD202 C3
ZD203 C3

0V
0V
0V
0V

4.9V

4.9V
0V
5V
5V
0V
0V
0V
0V

5.1V 2.8V

0V0V0V

5.1V

5.1V

5.1V

5.1V

-20.4V

-20.4V

-20.4V

-15.6V

-15.6V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

0V

0V

-11.6V

-7.3V

-20.4V

-21.9V

-20.0V

-12.7V

-14.5V

-0.8V

-14.5V

-21.5V

-20.0V

-20.0V

-14.5V

-12.7V

-21.9V

-21.5V

-15.5V

-15.5V

-21.6V

-20V

-14.6V

-10.9V

-21.9V

-21.9V

-21.9V

-16.4V

-20.1V

-16.4V

-14.6V

-20.1V

-22.1V

-20.1V

-9.1V

-12.9V

-20.4V

-20.4V

5V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

-20.4V

5V

5V

0V

5V

5V

0V

0V

4.4V

0V

CIRCUIT DIAGRAM

1

A

B

A

B

23 45

12 3 45

1

A

B

A

B

23 45

12 3 45

RB206B A4
SN201 A1
TA201 A1
TA202 B1
TA203 A3
TA204 A3
TA205 A4
TA206 A3
TA207 A3

C992 B3
C993 B3

JW225 B5
JW226 A5
JW227 A5
JW228 A3
JW229 A5
JW230 B5
JW231 A4
JW232 A1
JW233 B1

TA208 A4
TA209 A5
TA210 B5
TA211 A4
TA212 A5
XL981 A3
ZD201 A5
ZD202 A1
ZD203 A1

RB201 A3
RB202 B5
RB204B A1
RB203B A1
RB203A A1
RB204A A1
RB205A A4
RB205B A4
RB206A A4

JW234 A3
Q204 B3
R201 A1
R202 A1
R203 A1
R204 B3
R205 B3
R206 B3
R213 A1

R214 B2
R216 A1
R223 A3
R224 A3
R225 B2
R227 A1
R228 A2
R229 A2
R230 A2

R231 A2
R232 A4
R236 A3
R238 A1
R239 A1
R240 A1
R241 A2
R242 A5
R244 A1

R245 B2
R246 B3
R988 A2
R989 A2
R991 A3
R992 A2
R993 A2
R994 A2
R995 A3

C201 B1
C202 A1
C203 B1
C204 A1
C205 A1
C207 A2
C208 A2
C209 A2
C212 A5

C213 A5
C214 A3
C215 A4
C295 A5
C994 A3
D201 B2
D202 B2
D203 B2
D204 A4

JW207 B2
JW208 A2
JW209 A2
JW210 A2
JW211 A3
JW212 A3
JW213 A3
JW214 A3
JW215 B3

JW216 A3
JW217 B3
JW218 B3
JW219 B3
JW220 B3
JW221 A3
JW222 A4
JW223 A4
JW224 A5

Q202 B3
IC251 A2

Q203 A3
R234 B3

R248 A3
R249 A3

R984 B2
R987 B3

D985 A2
DP251 B2
LD201 A1
JW201 B1
JW202 B1
JW203 A1
JW204 B1
JW205 A2
JW206 A2

5-4 5-4

PCB LAYOUT TOP VIEW

PCB LAYOUT BOTTOM VIEW

ELECTRICAL PARTS LIST - KEY, VOLUME & LED BOARDS

MISCELLANEOUS

SN201 9965 000 13071 IRT SENSOR IRM-2038F4 W/GND

TA201 4822 276 13648 TACT SWITCH

TA202 4822 276 13648 TACT SWITCH

TA203 4822 276 13648 TACT SWITCH

TA204 4822 276 13648 TACT SWITCH

TA205 4822 276 13648 TACT SWITCH

TA206 4822 276 13648 TACT SWITCH

TA207 4822 276 13648 TACT SWITCH

TA208 4822 276 13648 TACT SWITCH

TA209 4822 276 13648 TACT SWITCH

TA210 4822 276 13648 TACT SWITCH

TA211 9965 000 12539 ROTARY ENCODER EC16B24-204

TA212 9965 000 12539 ROTARY ENCODER EC16B24-204

XL981 9965 000 12540 CRYSTAL 4,00MHZ

CAPACITORS

C201 9965 000 14169 100uF 10V 20%

C202 4822 122 30103 22nF 80% 63V

C203 9965 000 12543 100uF 25V 20%

C204 9965 000 14169 100uF 10V 20%

C205 2038 554 00065 100nF +80/-20% Y5V 50V

C207 9965 000 12545 15pF 50V 5%

C208 9965 000 12545 15pF 50V 5%

C209 9965 000 12545 15pF 50V 5%

C212 9965 000 14169 100uF 10V 20%

C213 4822 122 30103 22nF 80% 63V

C214 9965 000 14171 27pF 50V 5%

C215 9965 000 14171 27pF 50V 5%

C217 9965 000 16685 6800pF 50V 10%

C295 5322 122 32331 1nF 10% 100V

C991 9965 000 12474 10uF /16V 20%

C992 9965 000 14150 15pF 50V 5%

C993 9965 000 14150 15pF 50V 5%

C994 9965 000 14172 47pF 50V 5%

RESISTORS

R201 4822 050 21003 10K 1% 0,6W

R202 4822 050 21003 10K 1% 0,6W

R203 4822 050 21003 10K 1% 0,6W

R204 4822 050 21001 100R 1% 0,6W

R205 4822 050 21001 100R 1% 0,6W

R206 4822 050 21001 100R 1% 0,6W

R213 9965 000 09725 4,7K 1/6W 5% CF

R214 9965 000 09727 56K 1/6W 5% CF

R216 4822 050 21001 100R 1% 0,6W

R223 4822 050 21003 10K 1% 0,6W

R224 4822 050 21003 10K 1% 0,6W

R225 9965 000 12549 220R 1/6W 5% CF

R227 4822 050 23302 3,3K 1% 0,6W

R228 4822 050 21003 10K 1% 0,6W

R229 4822 050 21003 10K 1% 0,6W

R230 4822 050 21003 10K 1% 0,6W

R231 4822 050 21003 10K 1% 0,6W

R232 4822 050 21003 10K 1% 0,6W

R234 4822 051 20223 22K 5% 0,1W

R236 4822 050 22203 22K 1% 0,6W

R238 9965 000 12515 2,2K 1/6W 5% CF

R239 9965 000 12515 2,2K 1/6W 5% CF

R240 9965 000 12515 2,2K 1/6W 5% CF

R241 4822 050 21003 10K 1% 0,6W

R242 4822 050 21502 1,5K 1% 0,6W

R244 9965 000 12630 1,2K 1/6W 5%

R245 4822 050 24703 47K 1% 0,6W

R246 4822 050 21003 10K 1% 0,6W

R248 4822 051 20008 0R JUMPER 0805

R249 4822 051 20008 0R JUMPER 0805

R250 4822 117 10837 100K 1% 0,1W

R251 4822 117 10837 100K 1% 0,1W

R984 9965 000 12484 10K 1/10W 5%

R987 4822 050 21001 100R 1% 0,6W

R988 4822 050 23302 3,3K 1% 0,6W

R989 4822 050 21003 10K 1% 0,6W

R991 4822 050 21003 10K 1% 0,6W

R992 4822 050 21003 10K 1% 0,6W

R993 4822 050 21003 10K 1% 0,6W

R994 4822 050 21003 10K 1% 0,6W

R995 4822 050 21003 10K 1% 0,6W

DIODES

D201 4822 130 30621 1N4148

D202 4822 130 30621 1N4148

D203 4822 130 30621 1N4148

D204 4822 130 30621 1N4148

D985 4822 130 30621 1N4148

DP251 9965 000 12538 VFD DISPLAY

LD201 9965 000 14174 LED 3DIA RED HI-LIGHT

ZD201 4822 130 34233 BZX79-B5V1

ZD202 4822 130 34233 BZX79-B5V1

ZD203 4822 130 34233 BZX79-B5V1

TRANSISTORS & INTEGRATED CIRCUITS

IC251 9965 000 12550 PT6311(PTC)

IC981 9965 000 14173 CF745

Q202 9965 000 14175 2SA733Q,P

Q203 9965 000 14175 2SA733Q,P

Q204 4822 130 41198 2SC945P

Note: Only the parts mentioned in this list are normal service spare

parts.

5-5

TUNER BOARD

TABLE OF CONTENTS

Tuner Adjustment Table..................................................................6-1

Block Diagram ................................................................................ 6-2

Circuit Diagram...............................................................................6-3

PCB Layout Top View.....................................................................6-4

PCB Layout Bottom View ...............................................................6-5

Electrical Parts List.........................................................................6-6

TUNER ADJUSTMENT TABLE

6-1

6-1

Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter

VARICAP ALIGNMENT

AM IF

AM RF

3)

108MHz

87.5MHz

5130
check

6.5V ±1.2V

1.5V ±0.5V

T102

FM

87.5 - 108MHz
(50kHz grid)

1602KHz

531KHz

TC002

T003

AM

531 - 1602kHz
(9kHz grid)

1.1V ±0.2V

FM

576kHz576kHz

1557kHz

T002

1557kHz TC001

MW

AM

1

4

4

FM - IF

T105

FM

10.7MHz, 50mV

continuous wave

2F

C

1)

If sensitivity of frequency counter is too low adjust to max. channel separation

(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)

2)

RC network serves for damping the IF-filter while
adjusting the other one.

3)

For AM RF adjustments the original frame antenna has to be used!

max.

symmetric

f

o

max.

symmetric

f

o

B

∆f = ±30kHz
V

RF

as low as

possible

200P

short circuit
to block AFC

23

IC 101

R220

100nF

24

IC 101

450kHz

Connect pin 29 of

IC 101 (AM Osc.)

with short wire to
ground (pin 28)

AM AFC

MW

∆f = ±15kHz
V

RF

= 3mV

Use Service Testprogram. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.

1700KHz

530KHz

TC002

T003

AM

530-1700kHz
(10kHz grid)

FM - RF

7.8V ±0.2V

108MHz

87.5MHz

MAX

A

mod=1kHz

∆f= ±22.5kHz

108MHz

87.5MHz

580kHz

1650kHz

T002

TC001

MW

580kHz

1650kHz

( 22S / 30S / 21R /
21H )

( 21L / 21L / 37S )

8.0V 0.2V

±

±

1.1V 0.2V

Max

fo

Symmetric