Philips PET940 Service Manual Download Page 18

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ROUT

LOUT

SPR-

HPLOUT

MODECON1

HPROUT

DE
CO

MODECON2

HPROUT

HPLOUT

SPR-

SPL+

HPLOUT

AUDIO5V

SPL-

+P5V

MODECON1

HPROUT

AOUT_R

AOUT_L

+P5V

-5V

NEROU

NELOUT

AUDIO_MUTE

TFTON

SPR-

SPL+

SPL-

+P5V

C134

470N

C134

470N

VD18
DTC124

R69

100

R69

100

PGND

GAIN0

GAIN1

LOUT+

LLINEIN

LHPIN

VDD

RIN

LOUT-

LIN

BYPASS

GND

PGND

PC-BEEP

SE/BTL

ROT-

HP/LINE

PVDD

VDD

RHPIN

ROUT+

SHTUDOWN

RLINEIN

GND

U23

TPA0212

U23

TPA0212

VD24

2SD601

VD24

2SD601

VD25

STZ6.2N

VD25

STZ6.2N

R97
100K

C119

100P

C119

100P

C116
1000P

R100

C109

470N

C109

470N

VD26

STZ6.2N

VD26

STZ6.2N

R68

10K

R68

10K

R77
1K

R95
10K

R70

100

R70

100

C120

47U/6V

C120

47U/6V

R67

10K

R67

10K

R101

R99

JS2

C128
220U/6V

R94
10K

C117
1000P

C118

100P

C118

100P

C102

10U/10V

C102

10U/10V

C81

10U/10V

C81

10U/10V

C133

470N

C133

470N

JS3

R42
0

R75

100K

R75

100K

R82

10K

R82

10K

R11
0

C124
0.1U

R92

4R7

R92

4R7

R74

100K

R74

100K

C114

47U/6V

C114

47U/6V

C82
0.1U

R72
10K

R65

3.9K

R65

3.9K

L17

601

L17

601

C79

10U/10V

C79

10U/10V

R98

R80

47K

R80

47K

C127

220U/6V

C127

220U/6V

C115

47U/6V

C115

47U/6V

R76

R71
10K

R93

4R7

R93

4R7

R78

R11
0

R96
100K

R79
1K

C80
0.1U

L18
601

C108

C135
1U

U22A

BA4558

U22A

BA4558

C125
0.1U

R66

3.9K

R66

3.9K

R64

3.3K

R64

3.3K

R81
10K

VD23

2SD601

VD23

2SD601

U22B

BA4558
U22B

BA4558

R63

3.3K

R63

3.3K

1SS355

C121

47U/6V

C121

47U/6V

8.0 ELECTRICAL DIAGRAM
MAIN BOARD CIRCUIT DIAGRAM (AUDIO)

Summary of Contents for PET940

Page 1: ...ck Diagram 6 Overall Wiring Diagram 7 Electrical Diagram 8 Component Layout 9 Service Part List 10 Revision List 11 Copyright 2005 Philips Consumer Electronics B V Eindhoven The Netherlands All rights reserved No part of this publication may by reproduced stored in a retrieval system or transmitted in any form or by any means electronics mechanical photocopying or otherwise without the prior permi...

Page 2: ...SUPPLY 9V Battery Charging Current 1 2A typical BATT SUPPLY 7 2V Power Off 0A Playback with TFT on 1 2A typical Playback without TFT on 600mA Battery time playback 2 5 hour Headphone out headphone output load 2x16 ohm Maximum output power 10mW Frequency response 20Hz 20kHz SNR A wght 80dB typical THD 0 2 20kHz 1 Left Right Channel Separation 32dB Left Right Channel Balance 1dB Supported disc type ...

Page 3: ...lay CD ROM for firmware upgrade Warning Do not unplug the AC adaptor during firmware upgrade to prevent flash corrupt of the set 5 Once upgrade is completed the player is reset automatically 6 Open the DVD door to remove the disc Procedure to change region code of your portable DVD player 1 Power on player and open the DVD door 2 Press SETUP by remote control 3 In Set Up Menu select Audio and pres...

Page 4: ... 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 spé...

Page 5: ... operates properly after replacement if it was subject to electrostatic discharge during replacement its life might be shortened When replacing use a conductive mat soldering iron with ground wire etc to protect the laser diode form damage by static electricity And also the LSI and IC are same as above Soldering iron with ground wire or ceramic type Ground conductive wrist strap for body Conductiv...

Page 6: ...xists the fault must be located and corrected Repeat the above test with the DVD VIDEO PLAYER power plug reversed NEVER RETURN A DVD VIDEO PLAYER TO THE CUSTOMER WITHOUT TAKING NECESSARY CORRECTIVE ACTION READING SHOULD NOT EXCEED 0 3V DVD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal Voltmeter Hook up for Leakage Current Check 0 15uF 150V AC 1500 10W 5000 per volt or more sensitivity...

Page 7: ...next track or fast search backward forward Power remote sensor charging indicator 11 MAIN UNIT CONTROL POWER IR CHR Confirm selection OK Switch the power on off POWER OPEN AVOUT 1 2 Open the disc door to insert or remove disc Audio Video output Headphones jacks OPTION MENU Access additional functions Display MENU page 4 Start pause resume play back USB port Insert USB plug 14 RESET IReset the play...

Page 8: ...additional functions VOL Volume control Numeric keypad Up down left right navigation key Start pause resume playback MENU Display MENU page 15 OK Confirm seletion Mute player volume AUDIO Audio language selector ZOOM Enlarge video image 14 13 Skip to next chapter track or title 5 6 DISPLAY Adjust the display value of the system Skip to previous chapter track or title 3 2 2 5 3 4 1 6 7 8 9 10 11 12...

Page 9: ... board as Fig 5 6 Then remove TFT LCD and speakers 7 Base view as Fig 7 Remove screws to remove the base cover discreteness Fig 7 4 Broken connections to remove IF board as Fig 4 Remove speaker grill 2 Remove screws to remove the top cover discreteness as Fig 2 Fig 2 Fig 3 Fig 4 3 Remove screws to remove display frame shade top as Fig 3 ...

Page 10: ...ig 12 13 Remove screws to remove hinge right and hinge left then separate diplay frame disc reteness and middle cabinet discreteness 10 Remove main board as Fig 10 11 Remove screws to remove function board as Fig 11 9 Broken connections to remove loading ass y as Fig 9 Fig 8 Fig 9 Fig 10 Fig 11 Fig 12 Fig 13 ...

Page 11: ...n set to customer yes start set OK Check if the power and play button OK replace connector and switch unit replace MAIN BOARD go to other SYMPTOM no yes yes no replace DVD drive SYMPTOM NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL OUTPUT start Check operation of the DVD drive Does the DVD drive work yes no Replace the main board or the connector ...

Page 12: ...nnector harness broken Replace broken harness yes Remove the LCD cover and plate of the LCD unit to check the connector of the FL harness Is the connector OK no Repair connector Replace FL inverter or LCD no yes Is the connector broken Replace LCD harness or main board yes Remove the LCD cover and plate of the LCD unit to check the connection of the harness to the LCD unit no Is the connection OK ...

Page 13: ...re the connection of the DVD drive and main board Not OK Pick up lens light up OK Insert a DVD disc and turn on the power What is the reaction of the DVD drive The DVD drive works but the initializing operation of the optical pick up lens does not start the optical pick up lens operates twice or abnormal noise sound Replace DVD drive or main board DVD drive does not work The operation of the DVD p...

Page 14: ...tall a good battery does the LED lights up orange while the AC adapter is connected and does the DVD drive operate OK NOTE For this check use a battery which is not fully charged because the LED does not light when the battery is fully charged Before this check make sure other function work correctly no SYMPTOM NO SOUND COMES FROM THE HEADPHONES start Replace main board yes Insert a good headphone...

Page 15: ... TPC8212 S 8232 110 240V 50 60Hz BATTERY KHM252G PU mechanism DRIVER SA5954 16M FlashROM EN25B16 64M SDRAM HY57V641620ETP 7 C TC4W53 TFT MONITOR AUDIO AMP AZ4558 DC DC MP1540 L R DRIVER 5 5V 5 5V 5V 3 3V 1 8V TFT POWER 5V AT1313 TPA6011 AUDIO OUT PHONE OUT SPEAKER LOUT SPEAKER ROUT USB 5V 15V 10V VIDEO OUT AUDIO 5V 5V CHG BQ24103 ...

Page 16: ... GND B CB GND Y G GND CPH1 STHL OEH OEV CKV STVL GND SPL SPL SPR SPR GND TFT5V TFT5V U1 XS4 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 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 GND AVDD BOUT GOUT ROUT GND TFT3V3 CPH CPH2 CPH3 GND STHL OEH MOD LNR COM COM OEV UND CKV STVL GND VGH VGL TFT3V3 GND XS2 1 2 3 4 5 6 1 2 3 4 5 6 KEYAD1 KEYAD0 POWERKEY G...

Page 17: ...113 10U 16V C113 10U 16V C12 0 1U C12 0 1U R14 33 R14 33 Y1 27M Y1 27M R28 10K R28 10K C14 10U 10V C14 10U 10V C32 150P C32 150P RFE 5 RFF 6 AVDD18 7 AVDD33 8 XTALI 9 XTALO 10 AGND 11 V20 12 REXT 14 MDI1 15 MDI2 16 LDO1 17 LDO2 18 AVDD33 19 DMO 20 FMO 21 TRAY_OPEN 22 TRAY_CLOSE 23 TRO 24 FOO 25 FG GPIO2 26 USB_DP 27 USB_DM 28 USB_V33 29 USB_GND 30 PAD_VRT 31 USB_V18 32 GPIO3 INT 33 GPIO4 34 SF_CS_...

Page 18: ...R101 1K R99 1K R99 1K 1 2 3 4 5 6 JS2 HP JS2 HP C128 220U 6V C128 220U 6V R94 10K R94 10K C117 1000P C117 1000P C118 100P C118 100P C102 10U 10V C102 10U 10V C81 10U 10V C81 10U 10V C133 470N C133 470N 1 2 3 4 5 6 JS3 HP JS3 HP R42 0 R42 0 R75 100K R75 100K R82 10K R82 10K R11 0 R11 0 C124 0 1U C124 0 1U R92 4R7 R92 4R7 R74 100K R74 100K C114 47U 6V C114 47U 6V C82 0 1U C82 0 1U R72 10K R72 10K R6...

Page 19: ...D20 2SD601 1 2 3 VD22 STZ6 2N VD22 STZ6 2N R86 1K R86 1K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 J11 15x1 J11 15x1 1 2 3 VD21 STZ6 2N VD21 STZ6 2N 8 1 7 2 6 3 5 4 RN3 33 4 RN3 33 4 R85 0 R85 0 C129 22P C129 22P 1 2 3 VD19 2SD601 VD19 2SD601 1 2 3 7 J2 J2 L27 601 L27 601 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 J10 15x1 J10 15x1 1 2 3 VD30 STZ6 2N VD30 STZ6 2N C130 NC C130 NC 8 1 7 2 6 3 5 4 RN2...

Page 20: ...1 10K R121 10K R118 10K R118 10K R116 1K R116 1K 1 2 3 VD28 DTC144 VD28 DTC144 1 2 JP4 JP JP4 JP 1 2 3 4 13 14 15 16 5 6 7 8 9 10 11 12 U29 MC9S08QG4 U29 MC9S08QG4 R107 10K R107 10K R127 47K R127 47K R122 10K R122 10K R106 10K R106 10K 2 2 1 1 3 3 4 4 SW3 SWRST SW3 SWRST 1 2 3 VD27 2SD601 VD27 2SD601 R117 4 7K R117 4 7K 1 2 JP3 JP JP3 JP R104 10K R104 10K 1 2 JP2 JP JP2 JP R109 0 R109 0 1 2 JP1 JP...

Page 21: ...1 I21 MARK I21 MARK 1 I8 DRILL I8 DRILL 1 I9 DRILL I9 DRILL 1 I13 DRILLS I13 DRILLS 1 I10 DRILL I10 DRILL 1 I19 MARK I19 MARK 1 I16 MARK I16 MARK 1 I17 MARK I17 MARK 1 I14 DRILLS I14 DRILLS 1 I22 MARK I22 MARK 1 I1 DRILL I1 DRILL 1 I20 MARK I20 MARK 1 I2 DRILL I2 DRILL 1 I11 DRILLS I11 DRILLS 1 I3 DRILL I3 DRILL 8 0 ELECTRICAL DIAGRAM MAIN BOARD CIRCUIT DIAGRAM DRILL ...

Page 22: ...n C002 100n IN 1 GND 3 OUT 2 N3 BA03 N3 BA03 CB7 10U 16V CB7 10U 16V IN 1 GND 3 OUT 2 N4 BA05 N4 BA05 CB11 100N CB11 100N R001 1K R001 1K R27 4K7 R27 4K7 L9 33UH L9 33UH R82 51K R82 51K CB13 100N CB13 100N 1 2 3 4 5 6 7 8 U28 LM317L U28 LM317L R104 10K R104 10K R31 10 R31 10 R85 100K R85 100K R195 7K5 R195 7K5 R101 SLITE100MF R101 SLITE100MF IN 1 GND 3 OUT 2 U35 BA05 U35 BA05 C139 10U 16V C139 10U...

Page 23: ...TC144 VD35 DTC144 4 4 5 5 1 1 2 2 3 3 U33 APS1006 U33 APS1006 R140 560 R140 560 R52 47K R52 47K C97 10U 10V C97 10U 10V R44 56K R44 56K C107 10U 16V C107 10U 16V C84 10U 10V C84 10U 10V 1 2 3 4 5 6 7 8 9 J5 53261 0790 J5 53261 0790 R46 10K R46 10K C108 10U 16V C108 10U 16V R59 7 5K R59 7 5K VD15 B240A VD15 B240A R56 6 2K R56 6 2K R144 10 R144 10 L29 601 L29 601 C103 100U 16V C103 100U 16V D5 LED D...

Page 24: ...R 15 VCOM 16 VCOM 17 OEV 18 U D 19 CKV 20 STVL 21 STVR 22 VGH 23 VGL 24 VCC 25 GND 26 XS2 HEADER 26 SMD0 5 BOTTOM XS2 HEADER 26 SMD0 5 BOTTOM R30 75R R30 75R R16 100K R16 100K CE8 10UF 25V CE8 10UF 25V C9 22UF 16V C9 22UF 16V R20 7 5k R20 7 5k L21 10uH L21 10uH CE2 10uF 16v CE2 10uF 16v L20 10uH 2 3A L20 10uH 2 3A C48 C54 10uF C48 C54 10uF R34 470R R34 470R L18 FB L18 FB 1 3 2 VD7 709 VD7 709 CE6 ...

Page 25: ...MAIN BOARD DIAGRAM 9 0 COMPONENT LAYOUT ...

Page 26: ...9 0 COMPONENT LAYOUT IF BOARD DIAGRAM BACKLIGHT BOARD DIAGRAM BATTERY PROTECTION BOARD DIAGRAM FUNCTION BOARD DIAGRAM ...

Page 27: ... Description Photo Pos No PET940 05 PET940 12 996510015992 MAIN PCBA 12 PET940 93 996510015952 MAIN PCBA 93 PET940 98 996510015951 MAIN PCBA 98 100 PET940 ALL 996510015993 IF PCBA 110 PET940 ALL 996510015953 FUNCTION KEY PCBA 120 PET940 ALL 996510015939 BATTERY ASSY 130 ...

Page 28: ...00 PET940 ALL 996510010520 LOADER ASSY 210 PET940 ALL 996510002948 SPEAKER 220 PET940 ALL 996510015941 FFC 24PIN LE240 MAIN BOARD TO IF BOARD 230 PET940 ALL 996500038677 FFC 24PIN LE130 USING ON MAIN BOARD 240 PET940 ALL 996510015942 TOP COVER 300 PET940 ALL 996510015943 DISPLAY FRAME 310 PET940 ALL 996510015944 MIDDLE CABINET 320 ...

Page 29: ...ice Description Photo Pos No PET940 ALL 996510015945 BASE COVER 330 PET940 ALL 996510015946 SPEAKER GRILL 340 PET940 ALL 996510015947 LENS 350 PET940 ALL 996510015948 HINGE ADORN PANEL 360 PET940 ALL 996510015949 HINGE RIGHT 370 PET940 ALL 996510015950 HINGE LEFT 380 ...

Page 30: ...on Photo Pos No PET940 12 PET940 98 996500038689 AC ADAPTER 12 ACAPT PET940 05 996510001289 AC ADAPTER 05 ACAPT PET940 93 996500039077 AC ADAPTER 93 ACAPT PET940 ALL 994000001912 AV CABLE AVCABLE PET940 ALL 996510010528 CAR ADAPTER CARAPT PET940 ALL 996510001287 REMOTE CONTROL RC ...

Page 31: ...11 0 REVISION LIST Version 1 0 3141 785 32700 Initial release PET940 05 12 93 98 ...

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