Philips DVD-723 Service manual

DVD-Video Player DVD723-743

DVD723 /001 /021 /051 DVD743 /001 /021 /051

Contents Page

1 Technical Specs and Connection Facilities 2 2 Safety Instructions, Warnings, Notes,

and Service Hints 4 3 Directions for Use 6 4 Mechanical- and Dismantling Instructions 19 5 Diagnostic Software, Trouble Shooting and Test

Instructions 22 6 Wiring-, Block Diagrams

Block Diagram 41

Wiring Diagram 42/43 7 Electrical Diagrams and Print-Layouts Diagram PWB

Power Supply Unit 44 45

AV Board: Video & SCART (Diagram A1) 46 49-52

AV Board: Audio (Diagram A2) 47 49-52

AV Board: Regulated Supply (Diagram A3) 48 49-52

Testpoint Overview 53

Front DVD723: Display (Diagram D) 54 55-57

Front DVD723: Standby (Diagram S) 58 58

Front DVD743: Display (Diagram D) 59 60-62

Front DVD743: Standby (Diagram S) 63 63

Switching 64

SCART 65 66-68 8 Alignments (Not Applicable) 69 9 Circuit Descriptions, List of Abbreviations,

and IC Data 69 10 Spare Parts List 74

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 MW 0263 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12240

EN 2 DVD 723-7431.

Technical Specifications and Connection Facilities

1. Technical Specifications and Connection Facilities

1.1 DVD723/0X1

PLAYBACK SYSTEM

DVD Video Video CD & SVCD CD (CD-Recordable and CD-Rewritable) MP3 CD

TV STANDARD (PAL/50Hz) (NTSC/60Hz)

Number of lines 625 525 Playback Multistandard (PAL/NTSC)

VIDEO PERFORMANCE

Video output 1 Vpp into 75 ohm RGB (SCART) output 0.7 Vpp into 75 ohm Black Level Shift On/Off Video Shift Left/Right

AUDIO FORMAT

Digital MPEG Compressed

Digital Dolby Digital 16, 20, 24 bits PCM fs, 44.1, 48, 96 kHz

MPEG MP3 MPEG Audio L3 Analogue Stereo Sound Dolby Surround-compatible downmix from Dolby Digital multi-channel sound 3D Sound for virtual 5.1 channel sound on 2 speakers

AUDIO PERFORMANCE

DA Converter 24 bits DVD fs 96 kHz 4 Hz - 44 kHz DVD/SVCD fs 48 kHz 4 Hz - 22 kHz SVCD/VCD/CD fs 44.1 kHz 4 Hz - 20 kHz Signal-Noise (1kHz) > 105 dB Dynamic Range (1kHz) > 100 dB Crosstalk (1kHz) > 105 dB Distortion and Noise (1kHz) > 90 dB MPEG MP3 MPEG Audio L3

CONNECTIONS

SCART Euroconnector S-Video Output Mini DIN, 4 pins Video Output Cinch (yellow) Audio L+R output Cinch (white/red) Audio Subwoofer Cinch (black) Digital Output 1 coaxial, 1 optical

IEC958 for CDDA / LPCM IEC1937 for MPEG1/2, Dolby Digital

CABINET

Dimensions (w x h x d) 435 x 75 x 302 mm Weight Approximately 2.8 Kg

* typical playing time for movie with 2 spoken languages and 3 subtitle languages

Specifications subject to change without prior notice

1.2 DVD743/0X1

PLAYBACK SYSTEM

DVD Video Video CD & SVCD CD (CD-Recordable and CD-Rewritable) MP3 CD

TV STANDARD (PAL/50Hz) (NTSC/60Hz)

Number of lines 625 525 Playback Multistandard (PAL/NTSC)

VIDEO PERFORMANCE

Video output 1 Vpp into 75 ohm RGB (SCART) output 0.7 Vpp into 75 ohm Black Level Shift On/Off Video Shift Left/Right

AUDIO FORMAT

Digital MPEG Compressed

Digital Dolby Digital 16, 20, 24 bits PCM fs, 44.1, 48, 96 kHz

MPEG MP3 MPEG Audio L3 Analogue Stereo Sound Dolby Surround-compatible downmix from Dolby Digital multi-channel sound 3D Sound for virtual 5.1 channel sound on 2 speakers

AUDIO PERFORMANCE

DA Converter 24 bits DVD fs 96 kHz 4 Hz - 44 kHz DVD/SVCD fs 48 kHz 4 Hz - 22 kHz SVCD/VCD/CD fs 44.1 kHz 4 Hz - 20 kHz Signal-Noise (1kHz) > 110 dB Dynamic Range (1kHz) > 100 dB Crosstalk (1kHz) > 105 dB Distortion and Noise (1kHz) > 90 dB MPEG MP3 MPEG Audio L3

CONNECTIONS

SCART 2x Euroconnector S-Video Output Mini DIN, 4 pins Video Output Cinch (yellow) Audio L+R output 2x Cinch (white/red) Audio Subwoofer Cinch (black) Digital Output 1 coaxial, 1 optical

IEC958 for CDDA / LPCM IEC1937 for MPEG1/2, Dolby Digital

CABINET

Dimensions (w x h x d) 435 x 77.5 x 303.5 mm Weight Approximately 2.8 Kg

* typical playing time for movie with 2 spoken languages and 3 subtitle languages

Specifications subject to change without prior notice

Technical Specifications and Connection Facilities

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Safety Instructions, Warnings, Notes, and Service Hints

2. Safety Instructions, Warnings, Notes, and Service Hints

2.1 Safety Instructions

2.1.1 General Safety

Safety regulations require that during a repair:

• Connect the unit to the mains via an isolation transformer.

• Replace safety components, indicated by the symbol ,

only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.

Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points:

• Route the wires/cables correctly, and fix them with the mounted cable clamps.

• Check the insulation of the mains lead for external damage.

• Check the electrical DC resistance between the mains plug and the secondary side:

1. Unplug the mains cord, and connect a wire between

the two pins of the mains plug.

2. Set the mains switch to the 'on' position (keep the

mains cord unplugged!).

3. Measure the resistance value between the mains plug

and the front panel, controls, and chassis bottom.

4. Repair or correct unit when the resistance

measurement is less than 1 MΩ.

5. Verify this, before you return the unit to the customer/

user (ref. UL-standard no. 1492).

6. Switch the unit ‘off’, and remove the wire between the

two pins of the mains plug.

2.1.2 Laser Safety

This unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury).

2.2 Warnings

2.2.1 General

• All ICs and many other semiconductors are susceptible to

electrostatic discharges (ESD, "). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same potential. Available ESD protection equipment: – Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable) 4822 310 10671.

– Wristband tester 4822 344 13999.

• Be careful during measurements in the live voltage section. The primary side of the power supply (pos. 1005), including the heatsink, carries live mains voltage when you connect the player to the mains (even when the player is 'off'!). It is possible to touch copper tracks and/or components in this unshielded primary area, when you service the player. Service personnel must take precautions to prevent touching this area or components in this area. A 'lightning stroke' and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply.

• Never replace modules, or components, while the unit is ‘on’.

2.2.2 Laser

• The use of optical instruments with this product, will increase eye hazard.

• Only qualified service personnel may remove the cover or attempt to service this device, due to possible eye injury.

• Repair handling should take place as much as possible with a disc loaded inside the player.

• Text below is placed inside the unit, on the laser cover shield:

Laser Device Unit

Type : Semiconductor laser

GaAlAs

Wavelength : 650 nm (DVD)

: 780 nm (VCD/CD)

Output Power : 20 mW

(DVD+RW writing)

:0.8 mW

(DVD reading)

:0.3 mW

(VCD/CD reading)

Beam divergence : 60 degree

Figure 2-1

Note: Use of controls or adjustments or performance of

procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam.

CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÅLING ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES UNNGÅ EKSPONERING FOR STRÅLEN VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN VARO! AVATT AESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU

Figure 2-2

2.2.3 Notes

Dolby

Manufactered under licence from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. ©1992-1997 Dolby Laboratories, Inc. All rights reserved.

Figure 2-3

Trusurround

TRUSURROUND, SRS and symbol (fig 2-4) are trademarks of SRS Labs, Inc. TRUSURROUND technology is manufactured under licence frm SRS labs, Inc.

Figure 2-4

Safety Instructions, Warnings, Notes, and Service Hints

EN 5DVD 723-743 2.

2.3 Service Hints

2.3.1 Switched Mode Power Supply

The power supply unit has to be replaced in case of failure. The schematic provided in the manual is only for information and no service parts will be available.

2.3.2 DVD Module

This module can be repaired as follows:

1. The VAL6013/01 is a combination of loading mechanism and DVD-mechanism. Both are not repairable units and in case of failure, it has to be replaced with a new loader VAL6013/01.

Note: When replacing with a new VAL6013/01, two solder joints have to be removed after connecting the OPU flex foil to the mono board. The solder joints, which shortcircuits the laser diodes to ground, are for protection against ESD. Refer to figures 25 and 2-6 for location of solder joints.

2. The mono board has to be repaired down to component level. Repair handling of the monoboard requires a workshop with sophisticated desoldering tools.

VAL6013/01 Solder Joints

2.3.3 ComPair

For assistance with the repair process of the monoboard an electronic fault finding guidance has been developed. This program is called ComPair. This ComPair program is available on CDROM. The version of the CDROM for repair of the monoboard is V1.3 or higher and can be ordered with codenumber 4822 727

21637. This is an update CDROM, so when the ComPair CDROM is used for the first time, one has to install the ComPair Engine CDROM V1.2 first. The V1.2 CDROM can be ordered with code number 4822 727 21634 and has to registered after instalation. The procedure for registration is explained in the help file of the program and in the CDROM booklet. The cable to connect the monoboard with a PC can be ordered with codenumber: 3122 785 90017. All the hardware and software requirements of the systems, necessary for working with ComPair, are described on the CDROM.

2.3.4 Service Positions

Refer to dismantling instructions for dismounting of the board. Figures 2-7 to 2-8 shows the service position that are recommended during repair of the boards.

DVD723/0X1 model

Figure 2-5

VAL6013/01 Solder Joints

Figure 2-6

Figure 2-7

DVD743/0X1 model

Figure 2-8

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3. Directions for Use

Directions for Use

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Directions for Use

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Directions for Use

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Directions for Use

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Directions for Use

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Directions for Use

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Directions for Use

Mechanical- and Dismantling Instructions

4. Mechanical- and Dismantling Instructions

Dismantling Instructions

EN 19DVD 723-743 4.

260302

Remove 4 screws to remove loader.

CL 26532039-015.eps

When a disc is loaded, unlock the tray by pushing the slide inwards with

a screwdriver and pull tray outwards.

When it is not possible to open the tray with the EJECT button,

the tray can manually be opened.

When no disc is loaded, unlock the tray by moving the slide from left

Manually opening of tray

to right and pull tray outwards.

EN 20 DVD 723-7434.

Exploded View DVD723/0X1

Mechanical- and Dismantling Instructions

260302

CL 26532039_010.eps

Exploded View DVD743/0X1

Mechanical- and Dismantling Instructions

EN 21DVD 723-743 4.

260302

CL 26532039_011.eps

EN 22 DVD 723-7435.

Diagnostic Software, Trouble Shooting and Test Instructions

5. Diagnostic Software, Trouble Shooting and Test Instructions

5.1 Dealerscript

5.1.1 Purpose of Dealer Script

The dealer script can give a diagnosis on a standalone DVD player, no other equipment is needed to perform a number of hardware tests to check if the DVD player is faulty. The diagnosis is simply a "error" or "pass" message. No indication is given of faulty hardware modules. Only tests within the scope of the diagnostic software will be executed hence only faults within this scope can be detected.

Nucleus

Display Nucleus Nucleus Description

Countdown Number Name

6 6 PapChksFl Calculate and verify checksum of FLASH memory

5 12 PapI2cDisp 4 13 PapS2bEcho Checks the I2C interface to the basic engine 3 11 PapI2cNvram Checks the I2C interface with the NVRAM 2 15 PapNvramWrR Pattern test of all locations in the NVRAM 1 16 CompSdramWrR Pattern test of all locations in the SDRAM(s)

5.1.2 Contents of Dealer Script

The dealer script executes all diagnostic nuclei that do not need any user interaction and are meaningful on a standalone DVD player. The nuclei called in the dealer script are the following (the number after each nucleus name corresponds with the number being on the local display when the nucleus is executed during the dealer script):

Checks the I2C interface with the slave processor on the display board

CL 16532162_026.eps

Figure 5-1

080102

Dealer Script

Press 2 keys simultaneously

Connect to mains.

During the test, the following display is shown: the counter counts down from the number of nuclei to be run before the test finishes. Example:

SET O.K.?

YES

To exit DEALER SCRIPT, disconnect from mains

CL 16532162_027.eps

Figure 5-2

090102

Diagnostic Software, Trouble Shooting and Test Instructions

EN 23DVD 723-743 5.

5.2 Player Script

5.2.1 Purpose of Player Script

The Player script will give the opportunity to perform a test that will determine which of the DVD player's modules are faulty, to read the error log and error bits and to perform an endurance loop test. To successfully perform the tests, the DVD player must be connected to a TV set to check the output of a number of nuclei. For DVDv2b a multi-channel amplifier, a set of 6 speakers and an external video source are necessary to test. To be able to check results of certain nuclei, the player script expects some interaction of the user (i.e. to approve a test picture or a test sound). Some nuclei (e.g. nuclei that test functionality of the Basic Engine module) require that the DVD player itself is opened, to enable the user to observe moving parts and approve their movement visually. Only tests within the scope of the diagnostic software will be executed hence only faults within this scope can be detected.

5.2.2 Contents of Player Script

The player script contains all nuclei that are useful on a DVD player that is connected to a TV set and help to determine which module of the DVD player is faulty, as well as to read out the contents of the error logs.

5.2.3 Structure of Player Script

The player script consists of a set of nuclei testing the three hardware modules in the DVD player: the Display PWB, the Digital PWB, and the Basic Engine. Nuclei run by the player test need some user interaction. In the next paragraph this interaction is described. The player test is done in two phases:

1. Interactive tests: this part of the player test depends strongly on user interaction and input to determine nucleus results and to progress through the full test. Reading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player.

2. The loop test: this part of the player test will loop through the list of nuclei indefinitely, till the player is reset. The list of nuclei is as follows:

• PapChksFlash

• PapI2cNvram

• CompSdramWrR

• PapS2bEcho

• PapI2cDisp

At the beginning of the tests, the DSW version number will be indicated on the local display of the DVD. The display will look like the following:

Press the OPEN/CLOSE key to proceed to the next test.

5.2.4 Survey

Press 2 keys simultaneously <OPEN/CLOSE> + <STOP>

Connect to main

INTERACTIVE TESTS

DISPLAY PCB

DISPLAY TEST

LED TEST

KEYBOARD TEST

REMOTE CONTROL

P50 LOOP BACK TEST

DispDisplay (30a)

DispLed (29)

DispKeyb (27)

DispRc (28)

DispP50 (60)

MONO PCB

DIGITAL PART

PICTURE TEST

SOUND 1 TEST SCART DVD TEST

SCART LOOP TEST

SOUND 2 TEST

VideoColDencOn (23a)

AudioPinkNoiseOn (20a) VideoScartSwDvd (55a)

VideoScartSwPass (55b)

AudioSineOn (21a)

MONO PCB(SERVO)

& BASIC ENGINE

VERSION NUMBER

TRAY TEST

SLEDGE TEST

DISC MOTOR TEST

FOCUS TEST

RADIAL TEST

BeVer (37)

BeTrayOut/In (43a/b)

BeSledgeOut/In (41a/b)

BeDiscMotorOn (39a/b)

BeFocusOn (38a/b)

BeRadialOn (40a/b)

JUMP TEST

Figure 5-3

CL 16532162_028.eps

080102

TRAY TEST

ERROR LOG & BITS

Pressing the PLAY key will proceed to the slave S/W version display, which is shown on the local display of the DVD player. The display will look like the following:

CL 16532162_029.eps

080102

Figure 5-4

LOOP TEST

To exit player test, disconnect from mains

BeGroovesIn/Mid/Out (42a/b/c)

BeTrayOut/In (43a/b)

LogReadErr (31) LogReadbits (32)

= Dealer script exclusive of test2

CL 16532162_030.eps

Figure 5-5

090102

EN 24 DVD 723-7435.

5.3 Display PCB

5.3.1 Display Test

The display test is performed by nucleus DispDisplay. By putting a serie of test patterns on the local display, the local display is tested. To step through all different patterns, the user must either press OPEN/CLOSE (pattern is ok) or STOP (pattern was incorrect) to proceed to the next pattern. The display of patterns is continued in a cyclic manner, shown in Fig. 5-6, until the user presses PLAY. If the user presses PLAY before all display patterns are tested, the DispDisplay nucleus will return FALSE (display test unsuccessful).

If OK, press OPEN/CLOSE

If NOK, press STOP

Diagnostic Software, Trouble Shooting and Test Instructions

KEY ID KE

0 PLAY/PAUSE 1 STOP 2 OPEN/CLOSE 3 STANDBY 4 NEXT 5 PREVIOUS 7 SMART PICTURE 8 NAVIGATION -UP

9 NAVIGATION -DOWN A NAVIGATION - LEFT B NAVIGATION - RIGHT C DISC MENU DOK E SOUND

CL 26532039_027.eps

203020

If OK, press OPEN/CLOSE

press PLAY to continue

If NOK, press STOP

CL 16532162_031.eps

Figure 5-6

5.3.2 LED Test

The LED(s) on the DVD player is (are) tested by nucleus DispLed. The user must check if the LED(s) is (are) lighted; if it is, press OPEN/CLOSE, if it is not, press STOP. By pressing PLAY the script will proceed to the next test. If the user presses PLAY before OPEN/CLOSE or STOP, the DispLed nucleus will return TRUE (LED test successful).

5.3.3 Keyboard Test

The keyboard of the DVD player is tested by nucleus DispKeyb. The user is expected to press all keys on the local keyboard once. The code of the key pressed is shown on the local display (1 hexadecimal digit) immediately followed by a (hexadecimal) number indicating how many times that key has been pressed. Example of the local display during this test:

080102

Figure 5-8

If any keys are detected more than once (due to hardware error), the key-code is displayed twice (or more), with the second digit increased by 1. If the user does not press all keys minimally once (in any order), the DispKeys nucleus will return FALSE and cause an error in the overall result of the player script. The user can leave the keyboard test by pressing the PLAY key on the local display of the DVD player for at least one full second. The result of the keyboard test is shown on local display as follows:

CL 16532162_033.eps

080102

Figure 5-9

CL 16532162_034.eps

080102

Figure 5-10

Figure 5-7

The key-codes displayed on the local display will scroll from right to left when the display gets full, the text "K" will remain on display.

CL 196532162_032.eps

080102

Pressing PLAY on the local keyboard again will proceed to the next text.

5.3.4 Remote Control Test

The remote control of the DVD player is tested by nucleus DispRc. The user must press any key on the remote control just once. The codes of the key pressed will be shown on the local display in hexadecimal format. Example:

Figure 5-11

CL 16532162_035.eps

140102

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