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Philips MX2500D Service Manual
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Philips MX2500D Service Manual

Philips MX2500D Service Manual

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©
Copyright 2004 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 BB-ET0423 Service Audio Printed in The Netherlands Subject to modification
Version 1.0

TABLE OF CONTENTS

Specifications...............................................................................1-3
Measurement Setup ..................................................1-4
Service Aids ..............................................................1-5
ESD & Safety Instruction ...........................................1-6
Setting Procedure & Repair Instructions ..................... 2
Block & Wiring Diagram .............................................. 4
Key (Control / Standby / Vol) Board ............................ 5
Tuner Board ................................................................ 6
DVD loader .............................................................................. 7
Main Board .................................................................. 8
Exploded View ............................................................. 9
Power Board ................................................................. 10
MX2500D/
Page
CLASS 1
LASER PRODUCT
GB
78
3139 785 30760

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  • Page 1: Table Of Contents

    LASER PRODUCT © Copyright 2004 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.

  • Page 2: Location Of Pc Boards

    LOCATION OF PC BOARDS VERSION VARIATION: Type /Versions MX2500D Features & Board in used: Rotary Encoder (volume control) Aux Input Digital Output Line Output Progressive scan Power supply (110~230V)

  • Page 3: Specifications

    Frequency Response ....4 Hz - 20 kHz (44.1kHz) ............4 Hz - 22 kHz (48kHz) ............4 Hz - 44 KHz (96KHz) Digital Output ..................SPDIF (Sony Philips digital interface) Coaxial - PCM ..............IEC 60958 - Dolby Digital ......... IEC 60958, IEC 61937...

  • Page 4: Measurement Setup

    MEASUREMENT SETUP Tuner FM Bandpass LF Voltmeter 250Hz-15kHz e.g. PM2534 e.g. 7122 707 48001 RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Tuner AM (MW,LW) Bandpass LF Voltmeter...

  • Page 5: Service Aids

    SERVICE AIDS 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...
  • Page 6 WAARSCHUWING WARNING Alle IC’s en vele andere halfgeleiders zijn All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen susceptible to electrostatic discharges (ESD). (ESD). Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan drastically. de levensduur drastisch doen verminderen. When repairing, make sure that you are Zorg ervoor dat u tijdens reparatie via een connected with the same potential as the mass...
  • Page 7 Press "SYSTEM" on R/C button b) Press "1" "5" "9" button by using R/C. For MX2500D/78 (LATAM) : After replacement / repair of the MPEG board, the customer b) Select the menu using the " " and " " button on R/C c) TV Show "TUNER AREA"...
  • Page 8 REPAIR INSTRUCTIONS (1 of 2)
  • Page 9 REPAIR INSTRUCTIONS (2 of 2)

  • Page 10: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Dismantling of the DVD Module 1) Loosen 4 screws "A" to remove the DVD Module as shown in figure 4. Dismantling of the Front Panel Assembly 1) Open the DVD Tray by using the Open/Close Button 2) Return the set to its upright position and remove the Tray while the Set is ON and disconnect the mains supply after Cover as shown in Figure 3 and close the tray manually removing the Tray Cover.
  • Page 11 SERVICE POSITIONS Dismantling of the Tuner PCB 1) Loosen 10 screw " C " at the back panel as shown in figure Service position A 2) Loosen 6 screw " D " on the top of main board as shown in figure 8.

  • Page 12: Block & Wiring Diagram

    BLOCK DIAGRAM...
  • Page 13 WIRING DIAGRAM...

  • Page 14: Key (Control / Standby / Vol) Board

    FTD DISPLAY PIN ASSIGNMENT KEY (CONTROL / STANDBY / VOL) BOARD (2G - 10G) TABLE OF CONTENTS FTD Display Pin Assignment ........... 5-1 Pin Connection ..............5-1 Circuit Diagram ..............5-2 PCB Layout Top & Bottom View ........5-3 Electrical Parts List & Voltages ........5-4 PIN CONNECTION PIN NO.
  • Page 15 CIRCUIT DIAGRAM - KEY BOARD C201 R232 C202 R233 C204 R234 C205 R235 C206 R236 C207 R237 C208 R238 C228 C209 R239 C212 R240 C226 C214 R241 C227 C215 R242 C216 R243 C217 R244 C218 R245 C219 R246 C220 R247 C221 R248 C222...
  • Page 16 PCB LAYOUT - KEY BOARD (TOP) C214 C201 C221 C228 Q204 R247 R205 R213 R219 R226 R235 R241 R253 C215 C202 C222 IC201 Q205 R248 R207 R214 R221 R227 R236 R242 R254 C216 C205 C224 IC202 R201 R249 R255 R208 R215 R222 R231...
  • Page 17 ELECTRICAL PARTS LIST - KEY (CONTROL/STANDBY/VOL) BOARD MISCELLANEOUS DP2201 9965 000 18031 VFD 100x25mm VOLTAGES LD2201 9965 000 17400 LED 3 DIA RED ROUND SN2201 9965 000 23591 IRT RECEIV IRM-2038F4 TA2201 4822 276 13648 AI TACT SW SKHVBE3520 ALPS IC2201 (HT480051) TA2202 4822 276 13648...

  • Page 18: Tuner Board

    TUNER ADJUSTMENT TABLE Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter VARICAP ALIGNMENT 108MHz 6.5V ±1.2V check 87.5 - 108MHz (50kHz grid) 87.5MHz check 1.0V ±0.5V 1602KHz check 7.8V ± 0.2V T005 1.1V ± 0.5V 531KHz 530-1710kHz (10kHz grid) TUNER BOARD ( 21L / 21L / 37S ) check...
  • Page 19 CIRCUIT DIAGRAM - TUNER BOARD ANT001 A1 R004 C002 R005 C005 R006 C007 R010 C006 R011 C008 R015 C009 R016 R017 R018 R019 C010 R020 C011 R021 C012 R023 C013 R024 C014 R025 C015 R026 C016 R027 C019 R028 C020 R029 C021 R030...
  • Page 20 PCB LAYOUT - TUNER BOARD (TOP) ANT001 C025 D002 IF003 JWP8 T001 VD001 C005 C030 D003 JWP2 JWP9 T002 VD002 C006 C035 D004 JWP3 T003 VD003 C007 C047 D005 JWP4 L001 T005 VD004 C009 CN001 IC001 JWP5 Q001 T006 VR001 C019 CN002 IF001...
  • Page 21 PCB LAYOUT - TUNER BOARD (BOTTOM) C013 C023 C037 C048 R005 R019 R028 C014 C026 C038 C050 R006 R020 R029 C001 C015 C029 C039 C052 R007 R021 R030 C002 C016 C031 C040 IC001 R010 R023 R031 C008 C020 C032 C041 Q003 R011 R024...
  • Page 22 ELECTRICAL PARTS LIST - TUNER BOARD MISCELLANEOUS ANT001 9965 000 24668 RF JACK MALE TYPE 75 OHM VOLTAGES CN002 9965 000 25150 CONNECTOR S2B-XH-A 2P IF001 9965 000 24669 CER FILTER 10.7MHz IC001 (TEA5757H) IF002 9965 000 24670 CER FILTER 10.7MHz IF003 9965 000 24671 CER FILTER CDA10.7MG-18A...

  • Page 23: Dvd Loader

    DVD LOADER (For Information only) It is not recommended for component repair on this module but to replace the module when it becomes defective. Therefore no service parts list is published in this chapter. The only service part available for replacement is: DVD MECH.

  • Page 24: Exploded View

    Exploded View...
  • Page 25 ES6628F INTERNAL IC DIAGRAM DVD/CD Motor Motor Driver Video ES6603 TV Display RF Amp 8/16-MB Speakers Audio DAC DRAM Audio DAC Microphone In ES6628 Vibratto-II EEPROM MAIN BOARD S/ PDIF A/V Receiver ROM/Flash VFD Driver VFD Panel I/R remote AM5868S INTERNAL IC DIAGRAM MUTE BIAS VINTK...
  • Page 26 VOLTAGES IC201 (ES6628) IC405 (M62446FP) PIN NO 1 PIN NO 1 Voltage 3.3 1.77 1.77 1.77 Voltage PIN NO 21 PIN NO 21 Voltage 3.3 2.8 3.1 0.2 3.3 1.3 1.3 3.3 1.4 1.3 1.3 1.2 1.3 Voltage PIN NO 41 PIN NO 41 Voltage Voltage...
  • Page 27 CIRCUIT DIAGRAM (1)- MAIN BOARD C201 C801 IC801 R801 C202 C802 IC802 R802 C203 C803 JK801 R803 C204 C804 JK802-A A8 R804 C205 C805 JK802-B B8 R805 C206 C806 JK805 R806 C207 C807 L187 R807 C208 C808 L201 R808 C209 C809 L202 R809...
  • Page 28 CIRCUIT DIAGRAM (2)- MAIN BOARD C301 C515 C5005 E6 L502 R481 R5045 C302 C516 C5006 E6 L503 R482 R5046 C303 C517 C5007 E5 L504 R483 R5047 C304 C518 C5008 E5 L505 R484 R5048 C311 C519 C5009 E5 L506 R485 R5049 C312 C520 C5010 E6...
  • Page 29 PCB LAYOUT - MAIN BOARD (TOP) C201 C261 C314 C412 C440 C474 C509 C546 C595 C834 C970 C5011 CN801 IC201 IC953 L957 R208 R249 R320 R411 R439 R472 R522 R802 R831 R5007 ZD802 C202 C262 C315 C413 C441 C475 C510 C547 C598 C835...
  • Page 30 PCB LAYOUT - MAIN BOARD (BOTTOM) C214 C239 C267 C504 C569 C821 C972 C2012 C4007 C5052 C5084 L808 R221 R529 R958 R5011 C215 C241 C272 C523 C570 C824 C974 C2013 C4009 C5059 D951 L809 R231 R530 R959 R5012 C217 C244 C273 C524 C573...
  • Page 31 ELECTRICAL PARTS LIST - MAIN BOARD ELECTRICAL PARTS LIST - MAIN BOARD MISCELLANEOUS C837 9965 000 23594 CHIP INDUC 1uH 10% L5041 9965 000 23594 CHIP INDUC 1uH 10% R534 9965 000 23608 CHIP RES 22 OHM 1/2W 5% ZD801 9965 000 19431 CHIP ZENER 7.5V 5% 0.5W CF5041 9965 000 23595 RESONATOR 2P 600kHz...
  • Page 32 ELECTRICAL PARTS LIST - MAIN BOARD TRANSISTORS & INTEGRATED CIRCUITS IC407 9965 000 15886 IC 8 PIN RC4558D IC408 9965 000 15886 IC 8 PIN RC4558D IC409 9965 000 15886 IC 8 PIN RC4558D IC501 9965 000 23618 IC 24PIN TDA8921TH HSOP24 IC502 9965 000 23618 IC 24PIN TDA8921TH HSOP24...
  • Page 33 MECHANICAL EXPLODED VIEW...
  • Page 34 MECHANICAL & ACCESSORIES PARTS LIST - MAIN UNIT SCREW LISTS - MAIN UNIT 9965 000 24683 MAIN+PH JACK+PH BKT+RGB PCBA D3 x 8 9965 000 24684 CONTROL PCB ASSY M3 x 6 9965 000 24658 RADIO (TUNER) PCB ASSY D3 x 10 9965 000 23639 VOLUME KNOB 9965 000 23640...

  • Page 35: Power Board

    10-1 POWER BOARD (For Information only) It is not recommended for component repair on this board but to replace the board when it becomes defective. Therefore no service parts list is published in this chapter. The only service part available for replacement is: SW PWR SUP ASSY INPUT 110 ~ 230V ..
  • Page 36 10-2 10-2 CIRCUIT DIAGRAM - POWER BOARD (/78)
  • Page 37 10-3 10-3 PCB LAYOUT - POWER BOARD (/78)

This manual is also suitable for:

Mx2500d/78

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