Philips-MCD-715-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.1 MCD715 3141 785 32111 DVD Micro theatre all versions Published by LX 0736 Service Audio Subject to modification Copyright 2007 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

2、transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Service Aids .1-1 Info. about lead-free soldering.1-1 Service Instruction .1-1 CD Playability Check .2-1.2-3 Disassembly digram.3-1.3-3 Software version check and upg

3、rading .4-1 Block diagram.5-1 Wiring diagram .6-1 Tuner Board circuit diagram.7-1 layout diagram.7-2 VFD Board circuit diagram.8-1 layout diagram.8-2 CPU Board circuit diagram.9-1 layout diagram.9-2.9-3 AMP Board circuit diagram.10-1 layout diagram .10-2.10-3 MPEG Board circuit diagram.11-1.11-6 lay

4、out diagram.11-7 Power Board circuit diagram.12-1.12-2 layout diagram.12-3 Exploded view diagram .13-1 Service partslist.14-1 Commercial partslist TABLE OF CONTENTS RadioFans.CN 收音机爱 好者资料库 1-1 Service Tools: Universal Torx driver holder .4822 395 91019 Torx bit T10 150mm .4822 395 50456 Torx driver

5、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 SERVICE AIDS GBWARNING All ICs and ma

6、ny other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at

7、 this potential. ESD CLASS 1 LASER PRODUCT GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used Safety components are marked by the symbol !. Lead free RadioFans.CN 收音机爱 好者资料库 Set remains closed! Standard re

8、pair procedure N Y Play a CD for at least 10 minutes Y playability ok ? N playability ok ? add Info for customer SET OK playability ok ? Y N check playability N Y playability ok ? check playability check playability EYE-Pattern ok ? N Y check EYE-Pattern replace CD Drive Laser current ok ? N Y check

9、 Laser current CD Drive offsets ok ? NY check CD Drive offsets clean the lens check playability return set Customer complaint CD related problem return set return set replace CD Drive return set replace CD Drive return set replace Signal Processor return set fast lens cleaning 1 2 3 4 5 6 7 For flap

10、 loaders (= access to CD drive possible) cleaning method 4 is recommended 1 - 7 For description - see following pages CD PLAYABILITY CHECK 2 -1 RadioFans.CN 收音机爱 好者资料库 1 PLAYABILITY CHECK For sets which are compatible with CD-RW discs use CD-RW Printed Audio Disc.7104 099 96611 TR 3 (Fingerprint) TR

11、 8 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance playing time for: Fingerprint ?10seconds Black dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable time For all other sets use CD-DA SBC 444A.4822 397 30245 TR 14 (600 Black dot) maxim

12、um at 01:15 TR 19 (Fingerprint) TR 10 (1000 wedge) playback of all these tracks without audible disturbance playing time for: 1000 wedge ?10seconds Fingerprint ?10seconds Black dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time 2 CUSTOMER INFORMATION It is proposed to ad

13、d an addendum sheet to the set which informs the customer that the set has been checked carefully - but no fault was found. The problem was obviously caused by a scratched, dirty or copy-protected CD. In case problems remain, the customer is requested to contact the workshop directly. The lens clean

14、ing (method 3) should be mentioned in the addendum sheet. The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations. 3 FAST LENS CLEANING (dry brush) Use lens cleaning CD SBC AC300.9082 100 00043 Insert the lens cleaning CD, press PL

15、AY and follow the voice guides instructions on the CD. 4 LIQUID LENS CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent B4-No2”, available with co

16、denumber 4822 389 10026. The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (dont press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direction of cleaning must be in the

17、way as indicated in the picture below. Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens. CD PLAYABILITY CHECK 2-2 5 EYE-PATTERN SIGNAL JITTER MEASUREMENT Measure the signal on the inpu

18、t of the Signal processor using an analog oscilloscope. Please find the exact measuring point in your Service Manual. See below examples of the signal. Amplitude should read at least 700mVpp using SBC444A. good bad If the oscilloscope shows a signal like the bad one, and/or the amplitude decreases w

19、ithin 1 minute - the CD drive has to be replaced. 6 CD DRIVE LASER CURRENT MEASUREMENT The laser current can be measured as a voltage drop on a resistor. The resistor is marked in every Service Manual. The value depends on the type of CD drive. typical valuemost probably defect VAMxxxx: 150-230mV?35

20、0mV MCDxx: 170-230mV?300mV DA1x: 210-250mV?350mV DA2x: 175-200mV?250mV Use SBC444A (CD-DA) for measurement. 7 CD DRIVE OFFSET MEASUREMENT The photodiodes of the CD-drive may have an offset. These offsets have to be compensated by the signal processor. High offsets can lead to poor playability of som

21、e CDs (skipping tracks). To measure the offset values, start the Service Test Program - section “Focus Test” without a CD. The offsets can be measured with a DC Millivoltmeter directly on the connector (see drawing below). Pin numbering varies from drive to drive. The values from diode A-D should re

22、ad 010mV. Diodes E and F are less critical. If one of the offsets is higher than 10mV the CD drive has to be replaced. Otherwise replace the Signal Processor. Sanyo DA12T3 CD Drive A A F C B E C D E VCC B VREF F D 9 10 11 12 13 14 15 16 1800 +5V_HF VrefCD10 A D E B C F GND8 E D A B C F Laser power c

23、ontrol 100n 2878 470n 2876 3821 1R 1K 3823 2880 33p +5V BC807-40 7879 3817 47R 3820 4R7 47R 3819 1n 2879 2877 47u 1 8 4 7811-A LM358D 3 2 10K 3822 47R 3818 2841 100n 47n 2869 +5V_HF LASER DIODE U 250mV -Laser damaged ! 4,6V 3V 3,3V 3,9V 2V 0,17V 0,17V Sanyo DA12T3 HF-Amplifier D3 D2 D1 Drive detecti

24、on 680R 3905 3903 3K3 BC847B 7877 47n 2818 1K5 3902 5 7 4 2 1 6 3 64 8 9 10 11 470R 3893 +3.3V 2K2 3908 10K 3923 BC847B 7878 BC847B 7876 4n7 2813 3896 100R 220u 2885 2881 560p 47n 2887 560R 3901 2883 470n 2817 4u7 3n3 2814 3898 220R 3895 27K 470n 2884 +3.3V 3909 820R 3907 100R 3920 33K 3897 2882 82p

25、 3K3 3904 2K7 3899 3906 470R +5V_HF HFIN VrefCD10 100p 28152816 22n LDON to 3826,3827 VREF GE VDDA1 VRIN VSSA1 ISLICE LDON D1 D2 D3 D4 HFIN HFREF IREF CD_DA: 0V / CD_RW: 3V ? (A-D) 800mVpp TB = 0.5?s/div EYE-PATTERN 1,8V 1,2V 2,4V 2,6V 0,65V CD PLAYABILITY CHECK 2-3 3 - 1 A. Remove bottom cover C. L

26、oosen screws ?15FM(4PCS),and then remove the fan A1. Loosen screws ?4PCS) B. Loosen screws ?10FA(10PCS),and D.Cut off 4PCS wire tic then remove top cover and rear shuck A1 B C D Disassembly diagram Page:56 E. Loosen screws ?6PT(3PCS), remove CPU board H?Loosen screws ?6PT(4PCS), remove decode card F

27、. Loosen screws ?8BA(1PC), remove AMP board G. Loosen screws ?10PWA(4PCS), remove mechanism core I. Loosen screws ?10BA(2PCS), remove bezel panel H I E G F Disassembly diagram Page:57 3 - 2 J. Loosen screws 2.?8BA(8PCS), remove VFD board K. Loosen screws 2.?8BA(3PCS), remove volume card L. Loosen sc

28、rews 2.?8BA(4PCS), remove USB, earphone socket J K L Disassembly diagram Page:58 3 - 3 4 - 14 - 1 SOFTWARE VERSION CHECK AND UPGRADING SET BLOCK DIAGRAM 5 - 15 - 1 TDA8947J TDA8947J PT2322 9228 24C02 PT2323 TUNER BLOCK IC:TEA5760 AUX R AUX R IN AUX L AUX LIN RED R OUT VIDEO V-OUT S-VIDEO S-V OUT COA

29、XIAL OPTICAL GREEN GR OUT BLUE B OUT MEPG2 BLOCK MECHANISM DVD STBY&MUTE CONTROL VFD PT16311 REM 1 GND 2 Vcc 3 REM-SENSOR +5V +5V +5V +22V GND DVD +12V AC POWER BLOCK STANDBY +5V DVD ON/OFF TUNER POWER TUNER IN DVD MR DVD ML D-FL D-FR SL SR CEN SW SW CEN SL SR FL FR FL FR SW CEN SL SR CPU SDA SCL FR

30、 FL SL SR CEN SW KEY CONTROL FR SR CEN SW SL FL STANDBY MUTE SUR-MUTE MUTE SUR-MUTE FM AUX LIN AUX R IN TL072 +12V -12V +12V -12V SW 6 - 1 6 - 1 SET WIRING DIAGRAM VCC A6 RFIN1 B6 FREQIN C1 RFIN2 C6 RFGND C5 LOOPSW A2 CPOUT A1 LO1 A3 LO2 A4 VccVCO A5 SWPORT B1 BUSEN C2 VREFDIG E3 CLOCK E2 DATA E1 DG

31、ND D3 VDD D1 DGND D2 INTX B2 TMUTE D6 VAFR E6 VAFL E5 MPXOUT E4 AGND B5 TIFcentre D5 IC1 TEA5760UK C8 47pF C7 27pF C6 100pF L1 120nH C10 103 C13 104 C16 103 R15 10K R18 100K C11 103 L7 39nH SW1 BUS_ENABLE R19 10R C17 103 C15 103 SCL SDA INTX C12 104 R22 330 C18 47uF +5V3.0V 3.0V MPX C5 224 C4 224 Q2

32、 9014 Q3 9014 R4 4.7K R5 4.7K R3 1M R1 47 R13 1K R14 1K C1 22uF C2 224 C3 224 R2 1M +5V LOUT ROUT DZ1 3.6V R6 4.7K C19 47uF/6.3V ROUT LOUT SGND +5V SCL SDA SGND 1 2 3 4 5 6 7 8 CN1 8P L5 600R L4 600R RFIN R8 68k CLOCK X1 32.768K R12 1M C20 12pF C21 39pF C14 10pF C9 104 R11 10M R16 10K CLOCK 3.0V L8

33、10uH Q1 8050 1A 1 GND 2 2A 3 2Y 4 VCC 5 1Y 6 IC274HC2G04 C22 22uF C23 100pF C24 22uF C25 223 CIRCUIT DIAGRAM - TUNER BOARD 7 - 17 - 1 LAYOUT DIAGRAM - TUNER BOARD 7 - 27 - 2 8 - 18 - 1 CIRCUIT DIAGRAM - VFD BOARD R25447K R255 33K R25633K R25733K R25833K K4 K3 K2 K1 D205 4148 D2074148 S1 S2 S3 S4 S5

34、S6 S7 S8 S9 S1 S2 S3 S4 S5 S6 S7 KS2 +5V S1 S2 C217 104P R229 0.5/0.5 C203104P C200 104 SW200 STANDBY VF1 1 VF1 2 S1 3 S2 4 S3 5 S4 6 S5 7 S6 8 S7 9 S8 10 G1 11 G2 12 G3 13 G4 14 G5 15 G6 16 NC 17 NC 18 NC 19 NC 20 G7 21 G8 22 G9 23 G10 24 G11 25 G12 26 S9 27 S10 28 S11 29 S12 30 S13 31 S14 32 S15 3

35、3 S16 34 VF2 35 VF2 36 VFD200 NE-1300CD-3.G S10 S11 S12 S13 S14 S15 S16 G12 G11 G10 G1 G2 G3 G4 G5 G6 G7 G8 G9 G2 G3 G4 G5 G6 G7 G8 G9 S12 S11 G11 G10 S8 G1 S10 S9 G12 -28V VF2-1 VF1-1 D2064148 S3KS3 R228 0.5/0.5W C201 104 KS3 R2594K7 R23110K R23210K K1 K2 K3 K4 KS2 +5V SW204 SOURCE SW203 PRERET- SW

36、202 PRERET+ SW201 OPEN SW207 PRE SW206 PLAY SW205 PROGRAM KS2 K1 K2 K3 K4 KS3 S13 S14 S15 S16 R208 4.7K LED200 ECO-POWER REM 1 GND 2 Vcc 3 S200 REMOTE REM GND +5V R26047 C219 47uF USB LED USB LED +5V 1 2 10 9 7 6 3 4 5 B200 BZ1 L201 200UH C232 470/16V R2261K R227 1K R203 100 C233 104 C235 220U/35V D

37、208 FR104 R205 100 R204 100 DZ200 6.2V/1W D204 4148 C234 473M +5V ECO-power -28V VF2-1 VF1-1 G 1 B 2 A 3 ENCODER800 ENCODER LED501 ?LED LED701 LED LED702 LED LED703 LED R700 220 R701 220 R702 220 R501 1K +5V 1 2 3 CN202 1 2 CN501 2P/2.0 1 2 3 4 CN208 TO-USB SW208 DSC SW209 NES VOL BLOCK D209 4148 DS

38、-STB1 DS-DAT DS-CLK DS-STB1 DS-DAT DS-CLK REM +5V ECO-POWER GND 1 2 3 4 5 6 7 CN? 7P R210 15 R211 10K R224 X R206 0 R207 0 C202 104 C204 104 C205 47uF D201 4001 1 2 ROTA ROTB VGND 1 2 3 4 CN201 COM4 1 L 2 4 3 R 5 6 7 8 9 10 11 J201 PHONE3.5 RO-H LO-H GND-H MU-H MCD715-10A1 SW1 1 SW2 2 SW3 3 SW4 4 DO

39、UT 5 DIN 6 IC 7 CLK 8 STB 9 KEY1 10 KEY2 11 KEY3 12 KEY4 13 Vdd 14 S1/KS1 15 S2/KS2 16 S3/KS3 17 S4/KS4 18 S5/KS5 19 S6/KS6 20 S7/KS7 21 S8/KS8 22 S9/KS9 23 S10/KS10 24 S11/KS11 25 S12/KS12 26 S13 27 S14 28 S15 29 S16 30 S17/G12 31 S18/G11 32 Vdd 33 VEE 34 S19/G10 35 S20/G9 36 G8 37 G7 38 G6 39 G5 4

40、0 G4 41 G3 42 G2 43 G1 44 Vdd 45 LED5 46 LED4(BBE) 47 LED3(POWER) 48 LED2(FANCT) 49 LED1(7507RST) 50 Vss 51 OSC 52 IC203 uPD16311 Q208 8050 Q209 8050 LED2 LED3 LED4 K4 K3 1 2 3 CN001 3P vbus 5 D- 2 D+ 3 GND 4 GND 1 J1001 USB HOST 1 2 3 4 CN401 4P/2.0USB BLOCK UGND MCD715-02A1 MCD715-05A1 MCD715-07A1

41、 MCD715-08A1 MCD715-02A1 8 - 28 - 2 LAYOUT DIAGRAM - VFD BOARD L1 1 L2 2 L3 3 L4 4 FL-IN 5 FR-IN 6 CEN-IN 7 SW-IN 8 SL-IN 9 SR-IN 10 MIXO 11 VCC 12 REF 13 GND 14 SDA 15 SCL 16 SR-OUT 17 SL-OUT 18 SW-OUT 19 CEN-OUT 20 FR-OUT 21 FL-OUT 22 LPF-O 23 LPF-I 24 R4 25 R3 26 R2 27 R1 28 IC104 PT2323 R1090 27

42、0 R1089 270 R1088 270 R1087 270 R1086 270 R1085 270 C1076 683J C1079 223J R1055 24K R1054 24K C1029 4.7uF/50V C10304.7uF/50V C10314.7uF/50V C1022 4.7uF/50V C10214.7uF/50V C10204.7uF/50V C10194.7uF/50V C10184.7uF/50V C10174.7uF/50V C10164.7uF/50V C10154.7uF/50V C10144.7uF/50V C1040 10uF/25V C1051 100uF/16V C1053 104P R1047100 R1082 20K R1081 20K C1028 4.7uF/50V C1027 4.7uF/50V C1026 4.7uF/50V C1025 4.7uF/50V C1024 4.7uF/50V C1023 4.7uF/5