Philips HTS-3357 Service Manual

1 - 1

HTS3357/12/05

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-ET741 Service Audio Printed in The Netherlands Subject to modificatio

DVD Hometheatre System

Version 1.1

TABLE OF CONTENTS

Chapter

Location of PC Boards ................................................1-2

Versions Variation & Package ....................................1-2

Specifications .............................................................. 1-3

Service Aids ................................................................1-4

ESD & Safety Instruction ............................................1-5

Lead-free solding Information ....................................1-6

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

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

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

Scart

Board

..................................................................... 5

Control Board ................................................................. 6

Main Board ..................................................................... 7

Power Board .................................................................. 8

Mechanical Exploded View & Parts...............................9

Service Manual

Service

Tfswjdf

3139 785 32711

LOCATION OF PCB BOARDS

CONTROL PCB

MP3 PCB USB PCB

POWER PCB

SCART PCB

MAIN PCB

STANDBY PCB

Type/Versions

Features & Board in used

HTS3357

/05

Main (Output Power-600W)

Composite Video Out

Power Voltage (230V)

AC Cord (Fix)

/12

1 - 2

VERSION VARIATION:

Speci cations

1 - 3

AMPLIFIER

Total output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 W RMS

Frequency Response ...... ......... .......... 150 Hz – 18 kHz / ±3 dB

Signal-to

Input Sensitivity

- AUX In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV

- TV In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mV

- MP3 Line-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV

RADIO

Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 87.5–108 MHz (50kHz)

......................................................... MW 531–1602 kHz (9kHz)

26 dB Quieting Sensitivity . . . . . . . . . . . . . . . . FM 22 dBf, MW 5000µV/m

IF Rejection Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 60 dB, MW 24 dB

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 50 dB, MW 30 dB

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

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

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

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

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

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

Stereo Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 23.5 dB

DISC

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

Disc Diametre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12cm / 8cm

Video Decoding . .. . .. .. .. . MPEG-1 / MPEG-2 / DivX 3/4/5/6, Ultra

Video DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Bits

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

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

Video S/N .... ....... ....... ....... ....... ....... ................ 56 dB (minimum)

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

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

S-Video Output . . . . . . . . . . . . . . Y - 1.0 Vp-p, 75Ω C - 0.286 Vp-p, 75Ω

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

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

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

PCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEC 60958

Dolby Digital ...... .................... ......... ....... IEC 60958, IEC 61937

DTS .... ....... ....... ....... ....... ....................... IEC 60958, IEC 61937

-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB (A-weighted)

REAR SPEAKERS

System . . . . . . . . . . . . . . ............................................ Full range satellite

Impedance . . . . . . . . . . . . . . .............................................................. 3 Ω

Speaker drivers ...... ...................................3” full range speaker

Frequency response . . . . . . . . . . . . . . ..........................120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . ............95 x 1184 x 73.7 (mm) (w x h x d)

Weight .... ....... ........................................................5.99 kg/each

CENTRE SPEAKER

System . . . . . . . . . . . . . . ...................................................2-way satellite

Impedance . . . . . . . . . . . . . . .............................................................. 6 Ω

Speaker drivers ...... ....... 2 x 2.5” full range speaker+ 2” tweeter

Frequency response . . . . . . . . . . . . . . ..........................120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . ...............435 x 93.5 x 67 (mm) (w x h x d)

Weight .... ....... .................................................................1.34 kg

SUBWOOFER

Impedance . . . . . . . . . . . . . . .............................................................. 6 Ω

Speaker drivers ...... .................................... 203 mm (8”) woofer

Frequency response . . . . . . . . . . . . . . ............................40 Hz – 120 Hz

Dimensions . . . . . . . . . . . . . . ........159.5 x 355.5 x 370 (mm) (w x h x d)

Weight .... ....... .................................................................4.75 kg

Speci cations subject to change without prior notice.

MAIN UNIT

Power Supply Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220~240 V; 50 Hz

Power Consumption . .. .. .. ... .. ... .. .. .. ... .. ... .. .. .. ... .. ... .. .. .. ... .. .. 100 W

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 340.4 x 48.5 x 435 (mm) (w x h x d)

Weight .... ....... ....... ....... ....... ................................. ....... ....4.04 kg

FRONT AND REAR SPEAKERS

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full range

Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ω

Speaker drivers ...... ......... .................... ......3” full range speaker

Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 95.6 x 198.3 x 75 (mm) (w x h x d)

Weight .... ....... ....... ....... ....... ................................. .. 0.62 kg/each

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

SERVICE AIDS

HANDLING CHIP COMPONENTS

1 - 4

1 - 5

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.

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.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used.

Safety components are marked by the symbol

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast.

De Veiligheidsonderdelen zijn aangeduid met het symbol

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.

Less composants de sécurité sont marqués

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.

Sicherheitsbauteile sind durch das Symbol

markiert.

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.

Componenty di sicurezza sono marcati con

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

Warning !

Invisible laser radiation when open. Avoid direct exposure to beam.

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

Varoitus !

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina näkymättömälle laserisäteilylle. Älä katso säteeseen!

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.

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

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.

Advarse !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion. Undgå udsaettelse for stråling.

"Pour votre sécurité, ces documents doivent être utilisés par des spécialistes agréés, seuls habilités à réparer votre appareil en panne".

ESD PROTECTION EQUIPMENT

Complete Kit ESD3 (small tablemat, wristband,

connection box, estention cable and earth cable ....... 4822 310 10671

Wristband tester ................................................................. 4822 344 13999

1 - 6

Pb(Lead) Free Solder

When soldering , be sure to use the pb free solder.

INDENTIFICATION:

Regardless of special logo (not always indicated)

one must treat all sets from 1 Jan 2005onwards, according next rules:

Important note: In fact also products of year 2004 must be treated in this way as long as you avoid mixing solderalloys (leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

• Use only lead-free solder alloy Philips SAC305 with

order code 0622 149 00106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not easy to store and to handle.

• Use only adequate solder tools applicable for lead-

free solder alloy. The solder tool must be able – To reach at least a solder-temperature of 400?C, – To stabilize the adjusted temperature at the solder-

tip

– To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature around

360?C – 380?C is reached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400?C otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips switch off unused equipment, or reduce heat.

• Mix of lead-free solder alloy / parts with leaded solder

alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with new solder alloy (SAC305).

• Use only original spare-parts listed in the Service-

Manuals. Not listed standard-material (commodities) has to be purchased at external companies.

• Special information for BGA-ICs: – Always use the 12nc-recognizable soldering

temperature profile of the specific BGA (for desoldering always use the lead-free temperature profile, in case of doubt)

– Lead free BGA-ICs will be delivered in so-called ‘dry-

packaging’ (sealed pack including a silica gel pack) to protect the IC against moisture. After opening,

dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS-website. Do not re-use BGAs at all.

• For sets produced before 1.1.2005 (except products

of 2004), containing leaded solder-alloy and components, all needed spare-parts will be available till the end of the service-period. For repair of such sets nothing changes.

• On our website www.atyourservice.ce.Philips.com

you find more information to:

• BGA-de-/soldering (+ baking instructions)

• Heating-profiles of BGAs and other ICs used in Philips-sets

You will find this and more technical information within the “magazine”, chapter “workshop news”.

For additional questions please contact your local repair-helpdesk.

2 - 1 2 - 1

REPAIR INSTRUCTION (Part One)

MAIN UNIT REPAIR CHART 1/3

All function

No working

Check all system

all cable is loose

or bad INT

Panel stanby LED

show working or Not

Re-insert and fix

the cable

Check back power PCB F901 bad cause damage

Change F901

Check CN905 2pin

BK5V if right

Check repair control PCB Standby circuit

Check +5V power

supply circuit

Check RB901 1pin

+5V=5V

Check repair switch

power circuit ( See B)

Check all Voltage

3.3V and 1.8V give circuit

VCC=5V

VD33=3.3V

VD18=1.8V

Check IC208 Pin234 OSC

frequency 27MHz)

Repair main pcb between

IC202 IC206 IC208and IC602

circuit

YES

BAD

YES

WORK

CHECK

CORRECT

YES

Power Supply

No working

All Voltage

No Output

Check F901

Bad Cause Damage

Check BK5V +5V

Working or Not

YES

+39V Voltage

No Output

Check Repair IC901 IC902

And Its conn circuit

-27V Voltage No Output

+12V Voltage

No Output

+5V Voltage

No Output

Check Q901 Q909 IC901

And Its Conjoint Part

Check Q912 IC902

And Its Conjoint Part

Check Q912 IC902

And Its Conjoint Part

Check Q912 IC902 And Its Conjoint Part

All Function

No Sound

Check POWER IC

Voltage +39V

Yes

See Contents B

CheckQ306 D304 ZD303

And Its conn parts

Yes

Check Q305 C Voltage 3.3V

All Function

No Working

Power Supply

No Working

All Function

No Sound

Ipod input No Sound

Audio line IN

No Output

Wireless

No Output

DVD Audio

No Sound

MP3 In

No Sound

COAXIAL In

No Sound

Tuner No Sound

No Svideo Output

HDMI No Output

BK5V Voltage

No Output

Check Q912 IC902

And Its Conjoint Part

CheckQ501 Q502 IC505

And Its conn parts

LOW

CheckQ902 ZD905 IC505

And Its conn parts

Check Q902 C

Voltage 3.3V

Check IC505 51PIN

HIGH(3.3V) OR LOW(0V)

Check IC501 IC502 IC503 IC504

And Its Conjoint Part

No CVBS Output

No Y Pr Pb output

R S

NO SCART OUTPUT KARAOKE In

No Sound

MAIN UNIT REPAIR CHART 2/3

INT

DVD Audio

No Sound

Check CN801 to

DVD loader Cable Loose

Check Open/Close

Working or Not

Check CN802 CN803

to DVD Loader Cable loose

or Bad INT

Check IC801

And Its conjoint parts

or Bad INT

Re-Insert and fix

the cable

YES

Yes

Determine Picture Output

Yes or No

Check IC208 And

Their Conjoint Parts

Check Q801 Q802 Q803

Q804 And Their Conjoint Parts

COAXIAL In

No Sound

INT

Check JK702 Pin5

INT OR NO

REPAIR ok

Check And Repair

FB202 FB203

Check IC201 IC208And

Its Conjoint Parts

Check IC201 Pin6 pin 23

approx +5.0V

Yes or No

Ipod input

No Sound

Check DOCK TO

HTS3540 Cable INT or No

Check ipod input pcb

JK101CN101 INT OR NO

Change this Cable

Change this TWO

CheckCN101 JK101

Check DOCK

INT

Check CN101 5PIN

Voltage Correct is 5.0V

And Its Conjoint parts

AUX/TV IN

No Output

Check JK302

Check IC304 IC305 Pin7

INT or No

approx -5.6V Pin16 approx +5.6V

Check ZD301ZD302

Check FB307 FB308

Change this jk

Check IC306

And Its Conjoint parts

Check IC306 Pin1 Pin3 6 13

Voltage Correct is 5.0V

Yes

Yes or No

FB309 Q904

See C

Check JK2

Check IC304 IC305 Pin7

INT or No

approx -5.6V Pin16 approx +5.6V

Check ZD301ZD302

Check FB307 FB308

Change this jk

Check IC306

And Its Conjoint parts

yes

Check IC306 Pin1 Pin3 6 13

Voltage Correct is 5.0V

Yes

INT

Yes or No

FB309 Q904

See C

yes

Wireless

No Output

OK or No

Check JK401 IC505

And Its conjoint parts

CheckJK401

Pin1 approx +5V

See B

See C

Check IC403 PIN8 +12V

And Its Conjoint Parts

Check IC505 PIN29--32

And Its Conjoint Parts

Check IC701

Its Conjoint Parts

NO SCART OUTPUT

AUDIO

VIDEO

Repair IC505

And Its Conjoint Parts

Check IC208 PIN137 PIN138

pin139 Its Conjoint Parts

Check IC208 PIN134

Its Conjoint Parts

Check SCART OUTPUT

REPAIR INSTRUCTION (Part Two)

2 - 2 2 - 2

REPAIR INSTRUCTION (Part Three)

MAIN UNIT REPAIR CHART 3/3

Tuner No Sound

Output

Check CN301 Pin9= +9V

Check CN301Q901 ZD904

And Its Conjoint Parts

Check SW Power

See B

Yes

Check CN1 to CN301

Cable Loose or INT

Check CN1 Pin2/Clock

Pin3/Data,Pin4/CE

Affirm Correct

Yes

Check IC102 IC108

And Its Conjoint Parts

Check IC1 And

Its Conjoint Parts

Check VT Valtage

Low Freq=0.8--1.8V

Hi Freq=8.0--9.0V

Check IC1 OSC Input

Pin5---AM OSC

VT No Change

Pin3---FM OSC

Repair FM osc Section

And Its Conjoint Parts

No AMNo FM

L6 or DT4

Repair AM osc Section

And Its Conjoint Parts

L12 or DT5

Check Repair CN302 IC301

And Its Conjoint Parts

Check CN1 L12 CF3

And Its Conjoint Parts

Check CN302 IC301

And Its Conjoint Parts

Check CF2 And

Its Conjoint Parts

L6 DT4

And Its Conjoint Parts

AM Function No Sound

FM Function No Sound

Check IC1 X1 C39

And Its Conjount Parts

Check Main Pcb Of Tuner Input Circuit

HDMI No Output

Yes

Insert And Pull out HDMI

cable

See C

CheckQ610 Q611 Q609

And Conjoint Parts

Check IC602 3.3V And 1.8V

Check Q203 Q204

And Conjoint Parts

Check C300

CheckC300

And Conjoint Parts

Check IC602 PIN72:ASPDIF

CheckIC602 IC208

And Conjoint Parts

PIN77:ALCK

No Svideo output

Check JK701 Pin1 Pin3

Video signal

Yes

Check IC208 PIN133 PIN140

To JK701 Conjoint Parts

No CVBS output

Check JK701 Pin5

Video signal

Yes

Check IC208 PIN134

To JK701 Conjoint Parts

No Y Pr Pb output

Check JK702 Pin12 Pin4

Pin5 Video signal

Yes

Check IC208 PIN137 PIN138

pin139 To JK702 Conjoint Parts

Check IC403 PIN8 +12V

And Its Conjoint Parts

Check IC505 PIN29--32

And Its Conjoint Parts

Check IC701

Its Conjoint Parts

NO SCART OUTPUT

AUDIO

VIDEO

Repair IC505

And Its Conjoint Parts

Check IC208 PIN137 PIN138

pin139 Its Conjoint Parts

Check IC208 PIN134

Its Conjoint Parts

Check SCART OUTPUT

2 - 3 2 - 3

3 - 1 3 - 1

DISASSEMBLY INSTRUCTIONS

Dismantling of the Front Panel Assembly

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  gure 2 . Place the set on its side, insert the mini screw driver till the marking and slide it towards the right as shown in  gure 1 until the Tray moves out of the Front Panel.

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 5 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear.

- 3 screws on the back

- 1 screws each on the left & right side

4) Loosen 5 screws & lift up the top edge of Front Panel assembly to free some catches before sliding it out towards the front.

- 3 screws on the bottom

- 1 screw each on the left & right side

24mm

mm2

Figure 3

Figure 2

Dismantling of the Main PCB

2) Loosen 3 screw “ A “ on the top of main board as shown in  g ure 4.

1) Loosen 7 screw “B” at the back panel as shown in  gure 5.

Figure 4

Figure 5

Dismantling of the SCART Board

1) Loosen 3 screws “C” at the back pancle as shown in  gure5

PULL

Figure 1

+ 21 hidden pages