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Philips DVP2851/55, Руководство по обслуживанию, Страница: 24 / 37

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Philips DVP2851/55 Скачать руководство пользователя страница 24

 

 

 

4-10 

No video picture, no sound. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Change C65,R20,U1 

No video picture, 

no sound.

 

 

Check if the reset circuit consisting
ofC65 normal (at a low level for
tens of milliseconds, then
constantly at 3.3V). 

Check the cable if that is 
used to connect TV and 
DVD Player, is normal

Check the power board

 

Crystal oscillator X3 and 

peripheral components 

are defected or eroded. 

No 

No 

No 

Yes 

Yes 

Trouble shooting chart 

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

Replace the cable

 

Yes 

Check if the

component of  vidio
output  circuit. 

Change the bad component 

Check if there is
27MHz signal
output in   

No 

Yes 

No 

Check U1 and Replace U1

 

Yes 

Содержание DVP2851/55

Страница 1: ...f Philips CLASS 1 LASER PRODUCT Service DVD Player Copyright 2011 Philips Consumer Electronics B V Eindhoven The Netherlands Published by Arya 1252 BU AVM Printed in The Netherlands Subject to modification 3141 785 39350 DVP2851 55 Specification 1 2 Safety Instruction Warning Notes 1 3 Mechanical and Dismantling Instruction 2 1 Software Upgrades 3 1 Trouble Shooting 4 1 Wiring Diagram 5 1 Electric...

Страница 2: ...ort USB HDD Hard Disc Drive an external power source may be needed Video Signal system PAL NTSC Multi Composite video output 1Vp p 75 Ohm Audio 2 channel analog output Audio Front L R 2Vrms 47k Ohm Digital output 0 5Vp p 75 Ohm Coaxial Sampling frequency MP3 22 05 kHz 24 kHz 32 kHz 44 1 kHz 48 kHz WMA 44 1 kHz 48 kHz Constant bit rate MP3 8 kbps 320 kbps WMA 32 kbps 192 kbps Main unit Dimensions W...

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 5 Verify this before you return the unit to the customer user ref UL standard no 1492 6 Switch the unit off and re...

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: ...WV J 5HSODFH WKH GHIHFWLYH ORDGHU ZLWK D QHZ ORDGHU 5HPRYH SDSHUFOLS IURP WKH ÀH IRLO DQG FRQQHFW LW WR WKH QHZ ORDGHU 5HPRYH VROGHU MRLQW RQ WKH 6 SURWHFWLRQ SRLQW 77 17 21 7KH ODVHU GLRGH RI WKLV ORDGHU LV SURWHFWHG DJDLQVW 6 E D VROGHU MRLQW ZKLFK VKRUWFLUFXLWV WKH ODVHUGLRGH WR JURXQG RU SURSHU IXQFWLRQDOLW RI WKH ORDGHU WKLV VROGHU MRLQW PXVW EH UHPRYH DIWHU FRQQHFWLRQ ORDGHU WR WKH VHW 2QO D...

Страница 6: ...ch off un used equipment or reduce heat x 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 x Use only original spare parts listed in the Service Manuals Not listed s...

Страница 7: ...llegato 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 spécia listes agréés seuls habilités à réparer votre appareil en panne GB Safety regulations require that the set be restored ...

Страница 8: ...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 Conductive...

Страница 9: ...sts 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 G...

Страница 10: ...1 10 PCB BOARD LOCATION VERSION VARIATIONS Type Versions DVP2851 Service Policy 55 MAIN BOARD M C M C LOADER M Tips Board in used POWER FRONT BOARD C Component Lever Repair M Module Lever Repair X Used ...

Страница 11: ...the Top Cover Figure 1 Figure 1 Step2 If it is necessary to dismantle Loader or Front Panel the Front door should be removed first Figure 2 Note Make sure to operate gently otherwise the guider would be damaged Figure 2 2 1 Please kindly note that dismantle the front door assembly carefully to avoid damage tray and the front door Detailed information please refer to the model set ...

Страница 12: ...ough the instruction as below Figure 3 Note Make sure to operate gently otherwise the guider would be damaged Figure 3 Step4 Dismantling Front Panel need release 2 snaps of Front Panel 2 snaps out from the set Figure 4 Figure 4 2 2 Detailed information please refer to the model set of bottom cabinet then gently pull the Panel ...

Страница 13: ...el set Step6 Dismantling Power Front Control Board remove 3 screws on the board Figure 5 Step7 Dismantling Main Board Remove 1 screw on the board Figure 5 Step5 Dismantling Loader disconnect the 3 connectors XP5 XP8 XP9 aiming in the below figure and remove 1 screw that connects the loader and the bottom cabinet Figure 5 ...

Страница 14: ... XX Main version 2 Burn the data onto a blank CDR SUB VER XX XX XX XX software version of application software A Procedure for software upgrade 8032 XX XX XX XX 1 Power on the set and insert the prepared Upgrade Servo XX XX XX XX software version of servo CDR RIS XX XX XX XX 2 The set will starts reading disc response with the DSP XX XX XX XX following display TV screen Region Code X Upgrade File ...

Страница 15: ...ck the M5V power supply Check Replace U1 Check Replace the loader or the bad part Yes No Go Check the FFC connection between 24PIN and the loader 1 Whether the R12 is eroded or badly soldered 2 Whether peripheral components between U1 and xp5 are eroded or badly soldered Trouble shooting chart Motor no move ...

Страница 16: ...the power supply on the power board is normal Check Correct connection Whether the connection to K1 is broken Correct the connection Replace U1 No No Yes Yes Check if the XS2 on the front board to XP1on the decoder board is in good Whether there is 0V and 5V voltage difference on Pin 56 of U1 Trouble shooting chart ...

Страница 17: ...Check replace U501 Check whether U501 are eroded All output voltages on the power board is 0V or deviated Check whetherthere is 300V on C501 or C502 Check whether 100KHz oscillating signal on Pin4 of U501 Check if 5V short Check whether the components in the short circuit voltage are defected or eroded Yes Yes Yes Yes Trouble shooting chart Check whether F501 is blown ...

Страница 18: ... and peripheral components Replace the defective parts Check the connection between U1 Correct connection Replace U1 Yes Check whether the current of R12 is Less than 60mA for DVD and 65mA for CD Check if there is RFO signal on pin17 of XP5 The normal RFO signal is a clear reticulated wave Check whether the components between of U1 and xp5are eroded or defect Trouble shooting chart ...

Страница 19: ... and the loader Check the loaded circuit Replace loader Replace the bad spare parts Replace the bad xp5 Check whether the connection of xp5 are eroded or defect Yes Yes Yes Go Change U1 No Check whether the current of R12 is Less than 60mA for DVD and 65mA for CD No Check whether thecomponents between U1 and xp5are eroded or defect Trouble shooting chart ...

Страница 20: ...eck the U1 s pin 51 52 53arrive the XP1connect condition Correct connection PressXP1 or replace LED Yes Yes Yes No Check VCC M5V voltage on the power and front board Check there are STB SDA and SCK signals on XS2 on the front board 1 Check whether bad solder exists on pins of LED 2 Checkwhether the circuit connected to K1 K2 and K3 is broken 3 Check whether R303 R304 R305 on front board are open c...

Страница 21: ...es Check whether the muting resistance R132 is normal Checking the U927 leads the feet has no to break to open Correct connection Replace R134 Check the voltage on pin7 of U927 is OK Check whether the U1 or U927 powersupply normal No Yes Checkthe power supply voltages 5V to the operation amplifying Q753 is normal Yes Check U927 Replace U1 or U927 No Yes Trouble shooting chart ...

Страница 22: ...der board are normal Check X3 R79 R6 C26 and C27 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 normal Trouble shooting chart change U1 Yes No Check if the video signals on Pin 76 78 79 80 of U1 are normal ...

Страница 23: ...Use an oscilloscope to check if there is output waveform from the first pin IR of the remote censor after pressingbutton on the remote control REM1 PIN1 RCwaveform Check if there isIR signal on pin 54 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 IRwaveform Trouble shooting chart ...

Страница 24: ... connect TV and DVD Player is normal Check the power board Crystal oscillator X3 and peripheral components are defected or eroded No No No Yes Yes Trouble shooting chart Check whether all the voltages from the power board to the decoder board are normal Replace the cable Yes Check if the component of vidio output circuit Change the bad component Check if there is 27MHz signal output in No Yes No C...

Страница 25: ...IN 2 0 24PIN 0 5 XP1 XP9 XP8 XP5 1389W AUDIO VIDEO AMP LPF 1389W 2CH CVBS 14 1 XS301 14PIN 2 0 Front panel 4PIN 2 0 P1 R COAX L CVBS SP SP HOMESW SL SL GND OUTSW GND USB LED Light VCC_USB GND USB_DP USB_DM CLK STB DATA GND 5V IR Power_kO MIC 12V GND Wiring and Block Diagram for DVP2851 5 1 5 1 ...

Страница 26: ...2 1N4007 1A 1000V U502 PS2561L1 U502 PS2561L1 1 2 4 3 CY501 1000pF 250VAC CY501 1000pF 250VAC R507 11 3K 1 R507 11 3K 1 15uF 400V C502 15uF 400V C502 ZD501 BZX79C9V1 ZD501 BZX79C9V1 R505 12K 1 R505 12K 1 D509 SR360 3A 60V D509 SR360 3A 60V R509 100 R509 100 T501 BCK 2838 T501 BCK 2838 10 11 1 4 6 8 2 9 7 R510 10K R510 10K D501 1N4007 1A 1000V D501 1N4007 1A 1000V F501 10 ohm2W F501 10 ohm2W C511 0...

Страница 27: ...5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 R320 2 2K NC R320 2 2K NC ESD2 LVE16Y1R0 ESD2 LVE16Y1R0 R318 470 R318 470 Q2 BT3904 Q2 BT3904 R329 4 7K R329 4 7K R319 4 7K R319 4 7K C309 0 1u C309 0 1u K2 PLAYER PAUSE K2 PLAYER PAUSE REM1 IR1 REM1 IR1 IR 1 GND 2 VCC 3 C25 5 6pF 50V NPO NC C25 5 6pF 50V NPO NC C310 0 1u C310 0 1u R325 2 2K R325 2 2K C26 5 6pF 50V NPO NC C26 5 6pF 50V NPO NC K3 OPEN...

Страница 28: ...D C762 100pF 50V NP0 C762 100pF 50V NP0 R754 10K R754 10K C753 0 1uF 16V Y5V C753 0 1uF 16V Y5V R85 220 R85 220 C761 0 1uF 50V Y5V C761 0 1uF 50V Y5V R87 4 7K R87 4 7K R757 0 R757 0 R84 220 R84 220 C82 NC 100pF 50V NP0 C82 NC 100pF 50V NP0 R753 2 2K R753 2 2K 100uF 16V CE761 100uF 16V CE761 C81 NC 100pF 50V NP0 C81 NC 100pF 50V NP0 R88 1K R88 1K C84 0 1uF 50V Y5V C84 0 1uF 50V Y5V Q753 PNP_3CA8550...

Страница 29: ...USB_VRT 45 PAD_GPIO20 69 PAD_VR_DVD 6 MOTOR_TRB2 29 GPIO33 68 GPIO10 67 SPDIF GPIO12 66 DVDD33 65 GPIO32 64 GPIO31 63 GPIO30 62 GPIO7 60 GPIO8 59 GPIO9 58 DVDD33 57 GPIO29 61 GPIO3 56 GND_I 55 GND 108 AVDD33_1 107 AVDD12_2 106 RFF 105 RFE 104 RFD 103 RFIN OPOUT GPI36 98 PAD_RFIP 97 AVDD12_1 96 ADACVDD1 93 ALF CENTER GPIO 92 ALS GPIO 91 AL GPIO1 90 ARF LFE GPIO 86 AVCM 89 AR GPIO0 88 ARS GPIO 87 AV...

Страница 30: ...P11 R96 10K R96 10K C442 1000pF 50V X7R C442 1000pF 50V X7R C100 0 1uF C100 0 1uF R133 1k R133 1k R102 10k R102 10k R132 47k R132 47k C102 1000pF 50V X7R C102 1000pF 50V X7R C443 1000pF 50V X7R C443 1000pF 50V X7R R109 5 1k R109 5 1k C106 1uF 16V Y5V C106 1uF 16V Y5V R130 100 R130 100 C441 NC 47pF 50V NP0 C441 NC 47pF 50V NP0 R125 470 R125 470 TP2 TP2 100uF 16V CE365 100uF 16V CE365 TP7 TP7 P2 RCA...

Страница 31: ... L17 0 1 8uH 25mA 1 2 D928 PESD5V0S1BA 30K 35pF D928 PESD5V0S1BA 30K 35pF 2 1 L16 0 1 8uH 25mA L16 0 1 8uH 25mA 1 2 D926 PESD5V0S1BA 30K 35pF D926 PESD5V0S1BA 30K 35pF 2 1 D929 PESD5V0S1BA 30K 35pF D929 PESD5V0S1BA 30K 35pF 2 1 P1 RCA VIDEO OUT P1 RCA VIDEO OUT 1 2 3 4 5 6 P442 RCA 7h P442 RCA 7h 1 2 3 4 5 6 7 8 9 L15 0 1 8uH 25mA L15 0 1 8uH 25mA 1 2 R882 75 1 R882 75 1 C882 100pF 50V NP0 C882 10...

Страница 32: ...O USB_DMO M5V VCC_USB 3 USB_DP 4 AKIN1 4 USB_CON 3 USB_DM 4 MIC 3 USB_DPO 4 USB_DMO 4 Q221 PNP_PBSS5320T Q221 PNP_PBSS5320T D12 ESD_8KV D12 ESD_8KV R221 180 R221 180 C49 1uF 16V Y5V C49 1uF 16V Y5V TP15 TP15 R222 180 R222 180 D11 ESD_8KV D11 ESD_8KV C221 100pF 50V NP0 C221 100pF 50V NP0 C479 3300pF 50V X7R C479 3300pF 50V X7R R477 100 R477 100 F221 PTC 1 5A 6V F221 PTC 1 5A 6V TP14 TP14 Main Board...

Страница 33: ...Power Front Control Board print layout bottom side for DVP2851 55 6 8 6 8 ...

Страница 34: ...Main Board print layout bottom side for DVP2851 55 6 9 6 9 ...

Страница 35: ...Main Board print layout top side for DVP2851 55 6 10 6 10 ...

Страница 36: ...Exploded View for DVP2851 7 1 7 1 ...

Страница 37: ...8 1 Revision List Version 1 0 γ Initial Release for DVP2851 55 ...

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