Philips MDV460 Скачать руководство пользователя страница 20 | Manualshive

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Philips MDV460 Скачать руководство пользователя страница 20

4-10

No video picture, no sound.

Change EC9, D1and Q1.

No video picture,

no sound.

Check if the reset circuit
consisting ofEC9, D1 and Q1 is
normal (at a high level for tens
of milliseconds, then constantly
at 0V).

Check whether there is
27MHz signal output.

Check the loaded circuit

Crystal oscillator Y1 and

peripheral components

are defected or eroded.

No

No

No

Yes

Yes

Yes

27Mhz waveform

Check whether all the voltages
from the power board to the
decoder board are normal.

CVBS(R21 point) waveform

Check if there is 135MHz

signal output on R2.

Check whether
short-circuit or bad
solder on U2,U4

SDRAM(R2 PCLK) waveform

Check U1.

No

No

Reconnect the component in

Yes

Yes

Check if short-circuit and
bad solder exist on Pin
151

Yes

Trouble shooting chart

Go

No

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Содержание MDV460

Страница 1: ...9 1 TABLE OF CONTENTS Page 3139 785 32590 Version 1 0 MDV460 Service Manual PHILIPS GB Copyright 2007 Philips Consumer Electronics B V Eindhoven The Netherlands All rights reserved No part of this publication may be reproduced stored in aretrieval system or transmitted in any form or by any means electronic mechanical photocopying or otherwise without the prior permission of Philips CLASS 1 LASER ...

Страница 2: ...1 48 kHz Analogue Sound Stereo Dolby surround compatible downmix from Dolby Digital multi channel sound Audio performance DA converter 24bits 192KHz DVD fs 96kHz 4Hz 44kHz fs 48kHz 4Hz 22kHz SVCD fs 48kHz 4Hz 22kHz fs 44 1kHz 4Hz 20kHz CD VCD fs 44 1kHz 4Hz 20kHz Signal Noise 1kHz 90dB Dynamic Range 1kHz 80dB Cross talk 1kHz 70dB Distortion Noise 1kHz 65dB MPEG MP3 MPEG Audio L3 Connections YPbPr ...

Страница 3: ...wire between the two pins of the mains plug 2 Set the mains switch the on position keep the mains cord unplug 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 1M Ω 5 Verify this before you return the unit to the customer user ref UL standard no 1492 6 Switch the unit off and r...

Страница 4: ...ch 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 lighting 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 Laser The use of optical ins...

Страница 5: ...itch off un used 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 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 sta...

Страница 6: ...Remove 5 screws around the Top Cover then remove the Top Cover Figure 1 Step2 If it is necessary to dismantle Loader or Front Panel It should be remove the Front door assembly first Figure 2 Note Make sure to operate gently otherwise the guider would be damaged 2 1 Figure 2 Please kindly note that dismantle the front door assembly carefully to avoid damage tray and the front door assembly Figure 1...

Страница 7: ...n as below Figure 3 Note Make sure to operate gently otherwise the guider would be damaged Step4 Dismantling Loader disconnect the 3 connectors aiming in the below figure and remove 4 screws around the Loader Figure 4 2 2 Push the guider until the tray out Make sure to operate gently to avoid damage happening Figure 3 Figure 4 CON 1 CON 2 CON 3 ...

Страница 8: ...ng Instruction Step5 Dismantling Front Panel disconnect the 1 connector then release the snaps on the both sides of Front Panel and Bottom cabinet then gently pull the Panel out from the set Figure 5 Snap 1 Figure 6 Snap 2 Figure 7 Figure 5 CON 4 2 3 ...

Страница 9: ...ructions Dismantling Instruction Step6 Dismantling Main Board first disconnect the connector and then remove 4 screws Figure 8 Step7 Remove the 2 screws on Power Board to dismantle the Power Board Figure 9 2 4 Figure 9 Figure 8 CON 5 ...

Страница 10: ... Select Start to start upgrade 3 Press OK button to confirm then screen will display Firmware Upgrade Programming Please Wait Do not Switch the Player Off 4 The upgraded disc will automatically out when files coping complete then take out the disc 5 About 1 minute later the tray will automatically close when upgrading complete B Read out the software versions to confirm upgrading 1 Power on the se...

Страница 11: ...nals 2 If there are F F T and T signals output from U7 Check Replace the loader Yes Yes No Go Check whether laser voltage 2 3V for DVD 1 9V for CD on Collector of Q2 and Q3 Check the FFC connection between 24P and the loader 1 Whether voltage on pin 129 of U1 varies between 0 and 3 3V 3 3V for CD and 0V for DVD 2 Whether peripheral components are eroded or badly soldered Trouble shooting chart Mot...

Страница 12: ...upply on the power board is normal Check Correct connection Whether the connection to K301 is broken Correct the connection Replace U1 No No Yes Yes Check if the CON301 on the front board to CN5 on the decoder board is in good contact Whether there is 0V and 3 3V voltage difference on Pin 94 PCON of U1 Trouble shooting chart ...

Страница 13: ... whether U1 are eroded All output voltages on the power board is 0V or deviated Check whether there is 300V on C1 and C2 Check whether 100KHz oscillating signal on Pin6 of U1 Check if 5V 12V and 12V are short Check whether the components in the short circuit voltage are defected or eroded Yes Yes Yes Yes U1 PIN 3 RC waveform Check whether F1 is blown Trouble shooting chart ...

Страница 14: ...connection between 24P and the loader Check U1 and peripheral components Re solder or replace the defective parts Check the connection between U1 Correct connection Replace U1 or loader Yes Check whether there is laser voltage 2 3V for DVD and 1 9V for CD on Collector of Q2 Q3 Check if there is RFO signal on pin10 of CN2 The normal RFO signal is a clear reticulated wave Check U1 U7 and peripheral ...

Страница 15: ...components Check whether there is voltage variance on pin 182 of U1 check if bad solder exist on U1 and peripheral components Replace the bad spare parts Check Q2 whether in good condition Yes Yes Yes Go Correct connection Change U1 or the loader No No Yes Check laser voltage 2 3V output on Collector of Q2 if pin181 of U1is at low level No Trouble shooting chart Check whether pins of U1 and periph...

Страница 16: ... s pin 131 132 133 arrive the CN5 connect condition Correct connection Replace U301 or LED Yes Yes Yes No Check VCC 5v voltage on the power and front board Check there are CS DATA and CLK signals on CON301 on the front board 1 Check whether bad solder exists on U301 and pins of LED 2 Check whether the circuit connected to K302 K303 K304 K305 K306and K301 is broken 3 Check whether R300 R301 and R30...

Страница 17: ...ting transistor Q17 Q18 are normal Checking the U14 leads the feet has no to break to open Correct connection Replace U1 if the clock signal AOUT0 ABCK and ALRCK output by U1 are normal Check whether the U1 or U14 powersupply normal No Yes Check the power supply voltages 12V and 12V to the decode board are normal Yes Check U14 Replace U1 or U14 No Yes SACLK waveform SBCLK waveform SSLRCK waveform ...

Страница 18: ...board are normal Check Y1 R13 C38 and C39 Check other of power supply electric circuit Correct the connection Check whether the video filter network circuit is normal Yes Yes No No No Check whether the 27MHz output signal is normal change U1 Yes No Trouble shooting chart Check if the video signals on Pin 147 149 151 152 154 of U1 are normal ...

Страница 19: ... an oscilloscope to check if there is output waveform from the first pin IR of the remote censor after pressing button on the remote control REM301 PIN1 RC waveform Check if there is IR signal on pin 134 of U1 Check if the power supply voltage to the remote censor is normal Go No No No Yes Yes Yes Correct connection Yes Change U1 IR waveform Trouble shooting chart ...

Страница 20: ... Crystal oscillator Y1 and peripheral components are defected or eroded No No No Yes Yes Yes 27Mhz waveform Check whether all the voltages from the power board to the decoder board are normal CVBS R21 point waveform Check if there is 135MHz signal output on R2 Check whether short circuit or bad solder on U2 U4 SDRAM R2 PCLK waveform Check U1 No No Reconnect the component in Yes Yes Check if short ...

Страница 21: ...MP LPF LOAD 16M SDRAM RF_D SWITCH BOARD OUTSW TCL TDM 1 KHM313 RF_E CLK CD DVD DV33 IR EEPROM VCC RFA5V VR_DVD LED DRIVE ET6202 12V ZR36962D LED Display GND Y GND 7 COAX SL RF_A RF_B MD C GND 5 MOTOR DRIVER AM5888S 5V CS LOAD RF_C NC C GND 1 5V 1 Key matrix 1 TACT NC C GND 12V SL 7 2 VIDEO LPF DRIVE 1 AC IN LED 5V 1 SP FACT CN1 CN5 CN3 CN4 CN2 CN6 CN7 CON301 CON302 CON2 CON301 CON1 U1 U4 U5 U7 U2 ...

Страница 22: ... GRID1 KEY2 KS1 KS2 KS3 IR 5V DV33 K305 K303 C300 100P C301 100P C302 100P U301 ET6202 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 OSC DI O CLK STB KEY1 KEY2 VDD SEG1 KS1 SEG2 KS2 SEG3 KS3 SEG4 KS4 SEG5 KS5 SEG6 KS6 SEG7 KS7 GND GRID1 GRID2 GND GRID3 GRID4 GND VDD SEG14 GRID5 SEG13 GRID6 SEG12 GRID7 SEG10 KS10 SEG9 KS9 SEG8 KS8 C306 0 1u CE300 100uF D303 1N4148 C315 ...

Страница 23: ...6 2 6 2 Front Board Print Layout Bottom Side for MDV460 37 Switch Board Print Layout Bottom Side for MDV460 37 ...

Страница 24: ...4 47uF 25V C1 22uF 400V D3 1N4007 C11 0 1uF 50V R3 1 4W120K C5 152 1KV C6 47uF 25V R12 1 6W33 R5 1 6W5 6K 1 U2 PC123X92 1 2 4 3 F1 T2AL 250ac C2 22uF 400V D6 IN4148 R10 1 6W100 D5 IN4148 C14 NU U3 TL431 2 1 3 C10 0 1uF 50V U1 TNY276 8 1 5 6 4 7 3 2 S EN UV S S Drain S NC BP M RV1 10K471 R11 1 6W22 D7 FR102 D8 IN4007 R7 1 6W5 1k 1 L6 C9 10uF 50V T1 EEL22 8 11 6 4 7 3 1 9 5 2 12 10 R9 1 6W10k D2 1N4...

Страница 25: ...6 4 6 4 Power Board Print Layout Bottom Side for MDV436 37 ...

Страница 26: ...8 10nF CN109 DOWN_LOAD_I F 1 2 3 4 C2 10nF EC9 10uF 16V R19 75R 1 FB5 500Z Y1 27 000MHz Third overtone R39 0R R37 2K JP3 BOOTSEL1 NM C15 10nF R10 392 Ohm 1 C28 10nF R1 4 7K R42 1K NM FB6 500Z C49 0 1uF R20 75R 1 R34 10K C5 0 1uF C11 10nF C32 1nF R7 15 4K 1 FB1 500Z R17 4 7R JP2 BOOTSEL1 NM EC1 47uF 16V R36 100R R21 75R 1 C35 1nF C4 0 1uF C16 100pF C48 10nF C33 27nF C20 10nF C45 22pF NM U5 24LC02 1...

Страница 27: ..._D SPDL_S SPDL_S TRACK_S MD_CD FOCUS_S TRACK_S LD_CD OPEN REGO1 REGO2 DRVSB CLOSE RF RF_F TR_B2 TR_B2 TR_B1 RF_A RF_E GND DSPVCC33 DSPVCC33 M5V DSPVCC33 DSPVCC33 RFA5V DSPVCC33 GND M5V DSPVCC18 M5V DSPVCC33 RFA5V CN2 SF HD6B 0 5mm 24P TOP 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 25 26 27 28 F F T T C D CD DVD RF A B F GND PD VC VCC E NC VR CD VR DVD LD CD MD HFM NC LD DVD GND...

Страница 28: ... 12V 12V 12V RFA5V DSPVCC33 12V C97 33pF R118 NM 120K 1 R26 4 7K 1 R113 NM 120K 1 R114 NM 120K 1 C91 200pF R59 39K 1 120K 1 Q13 9012H R57 4 7K 1 R87 39K 1 120K 1 R62 6 8K Q15 9012H C98 33pF Q14 9012H R55 4 7K 1 EC28 22uF Q17 BT3904 C96 33pF D3 LL4148 R28 4 7K 1 R111 NM 120K 1 R60 39K 1 120K 1 R112 NM 120K 1 C99 0 1uF R115 NM 120K 1 R116 NM 120K 1 R15 10R R63 470R D5 LL4148 R58 4 7K 1 R88 39K 1 120...

Страница 29: ...F CVBS_C LED PCON M5V P12V RCA_CVBS_OUT V_OUT Y_OUT P5V FPC_CLK FPC_DOUT FPC_CLK Y_R_V CVBS_G_Y IRRCV STBY_KEY C_B_U FPC_STB S PDIF_OUT LMAIN OUT LED PCON RMAIN OUT CVBS_C D5V M5V DSPVCC33 DSPVCC33 12V 12V DSPVCC33 DSPVCC33 RFA5V SERVO33 DSPVCC33 DSPVCC18 D5V 1 7 CN1 CON7 2 5mm 1 2 3 4 5 6 7 C41 100pF C47 NM C79 100pF R106 220R L3 1uH R82 10K C105 100pF NM R89 22K C80 100pF R99 NM R101 39R FB34 50...

Страница 30: ...6 9 6 9 Main Board Print Layout Top Side for MDV460 37 6 9 ...

Страница 31: ...6 10 6 10 Main Board Print Layout Bottom Side for MDV460 37 ...

Страница 32: ...7 1 MDV436 37 Mechanical Exploded View Remark Ass y1 is the assembled compoient for location 1 2 3 5 6 7 ...

Страница 33: ...MDV460 37 AVCAB 996510001114 AUDIO CABLE 1500MM RC 996510001221 REMOTE CONTROL VCAB 996510001113 VIDEO CABLE 1500MM Note Only the parts mentioned in this list are normal service spare parts ...

Страница 34: ...REVISION LIST Version 1 0 Initial release 9 1 ...

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