Philips-MCB-146-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.0 MCB146 3141 785 32640 Micro Hi-Fi System -/05 Published by LX 0815 Service Audio Subject to modification Copyright 2008 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 transmi

2、tted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CONTENTS Technical specification .1-2 Version variation. .1-2 Service measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1. 2-2 Disassembly diagram. .

3、3-1 Block diagram .4-1 Wiring diagram .4-2 Main board Circuit diagram .5-1.5-3 Layout diagram .5-3.5-4 MCU board Circuit diagram .6-1 Layout diagram .6-2 Exploded view diagram .7-1 Mechanical parts list .7-2 Electrical parts list.8-1.8-2 RadioFans.CN 收音机爱 好者资料库 AMPLIFIER Output power .2 x 2W RMS Sig

4、nal-to-noise ratio. 60 dBA (IEC) Frequency response . 125 16000 Hz Impedance loudspeakers .8 CD PLAYER Frequency range . 125 16000 Hz Signal-to-noise ratio. 65 dBA TUNER FM wave range .87.5 108 MHz Sensitivity FM 26 dB sensitivity . 20 V Total harmonic distortion. 5% SPEAKERS Bass reflex system Dime

5、nsions (w x h x d) .134 x 230 x 152 (mm) GENERAL INFORMATION AC Power.220 230V / 50 Hz Dimensions (w x h x d) .148 x 233 x 216 (mm) Weight (with/without speakers) . . approx. 3.65 / 1.53 kg Power consumption Active . 15W Standby . 4W Specifications and external appearance are subject to change witho

6、ut notice. TECHNICAL SPECIFICATION 1 - 2 Type /Versions: Features Board in used: MCB146 Service policy DISPLAY BOARD MAIN BOARD * TIPS : C - Component Lever Repair. M - Module Lever Repair - Used /05/12/55 89/16/85/ Feature diffrence RDS & DAB VOLTAGE SELECTOR ECO STANDBY - DARK Type /Versions: MCB1

7、46 /05/12/55 89/16/85/ VERSION VARIATION 39/ 39/ C C RadioFans.CN 收音机爱 好者资料库 1-3 LF Generator e.g. PM5110 Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion mete e.g. Sound Technology ST170 L R DUT or Universal Test Cas

8、sette FeSBC420 4822 397 30071 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT CD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N and distortio

9、n meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz). RF Generator e.g.

10、 PM5326 Ri=50? Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT 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). Ri=50? Tuner FM MEASUREMENT SET

11、UP RadioFans.CN 收音机爱 好者资料库 1-4 SERVICE AIDS GBWARNING All ICs and many 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

12、 via a wrist wrap with resistance. Keep components and tools also at 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

13、!. Lead free Set remains closed! N Y Play a CD for at least 10 minutes Y playability ok ? N playability ok ? add Info for customer SET OK check playability N Y playability ok ? check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap load

14、ers (= access to CD drive possible) cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY 2 - 1 Exchange CDM 1- 4 For description - see following pages 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 8 (60

15、0 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance playing time for: Fingerprint10seconds 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) maximum at 01

16、:15 TR 19 (Fingerprint) TR 10 (1000 wedge) playback of all these tracks without audible disturbance playing time for: 1000 wedge10seconds Fingerprint10seconds Black dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time 2 CUSTOMER INFORMATION It is proposed to add an addendu

17、m 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 cleaning (method

18、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. 4 LIQUID LENS CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning

19、 must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent 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 t

20、he special lens cleaner. The direction of cleaning must be in the 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. INSTRUCTIONS ON CD PLAYABILIT

21、Y 2 - 2 DISASSEMBLY DIAGRAM VIEW 3 - 13 - 1 SET BLOCK DIAGRAM 4 - 14 - 1 MCU SET WIRING DIAGRAM 4 - 24- 2 5 - 15 - 1 CIRCUIT DIAGRAM - MAIN BOARD CD PART CIRCUIT DIAGRAM - MAIN BOARD AMP & POWER SUPPLY PART 5 - 25 - 2 CIRCUIT DIAGRAM - MAIN BOARD TUNER PART 5 - 35 - 3 5 - 35 - 3 LAYOUT DIAGARM - MAI

22、N BOARD COMPONENT SIDE VIEW 5 - 4 LAYOUT DIAGARM - MAIN BOARD COPPER SIDE VIEW 5 - 4 CIRCUIT DIAGRAM - MCU BOARD 6 - 16 - 1 LAYOUT DIAGARM - MCU BOARD 6 - 26 - 2 EXPLODED VIEW DIAGRAM 7 - 17 - 1 7 - 2 MECHANICAL PARTSLIST 81994000005398CD MECHANISM DA11B3VF 101996510013796LCD BRACKET 102996510008372

23、LCD LIGHT GUIDE 114994000003674CD DOOR SPRING 201996510008373FRONT CABINET 202996510013802REAR CABINET 203996510006656CD TRAY 204996510013803AC CORD BRACKET 205996510008374CD DOOR 206996500039787LASER COVER (FOR SANYO CD) 207996510013804DBB BUTTON COVER 208996510013807SOURCE BUTTON COVER 20999651001

24、3808PLAY BUTTON COVER 210996510013810STOP BUTTON COVER 211996510013805VOL COSMETI COVER 212996510013806VOL BUTTON COVER 213994000001295DAMPER GEAR ASSY 214996510013809PROGRAM/REPEAT BUTTON 215996510008376CASS DOOR BOGUS 216996510006662POWER BUTTON 217996510013811PRESET BUTTON 218996510013812DISPLAY

25、LENS D001996510013795LCD DISPLAY J00199400000448716P FFC 1MM L=170MM J00299651001380011P FFC.1.25mm L=100mm J005996510013801FM ANT BALANCE CABLE 1x2+1m J00899651000684115P FFC 1mm L260mm J011! 996510000859AC CORD BS APP 2M (to UK) T001! 996510006839TRANSFORMER EI48 230V ACCESSORIES J012996510000910F

26、M ANT SMF-01T-1.3 L=1.1M M002996510013799DAB MODULE VERICE SPK996510013798SPK BOX ASSY (inclu.L&R) 6996510013797REMOTE CONTROL Note:Only these parts mentioned in the list are normal service parts. CORD! 996510000909AC CORD VDE APP 2M (to Switzerland) ELECTRICAL PARTSLIST MAIN BOARD ASSEMBLY D2996510

27、000323SMD DIODE BAS316 D6994000003938RECTIFIER DIODE RL-202 D7994000003938RECTIFIER DIODE RL-202 D8994000003938RECTIFIER DIODE RL-202 D9994000003938RECTIFIER DIODE RL-202 IC1996510006827IC (SANYO) LA6541NHL-TE-L-E IC2996500039806IC ET2314 (SOP28) IC3996510006828IC (SANYO) LA9242M-MPB-E IC49965100068

28、29IC (SANYO) LC78602RE-8616 Q1996510000315SMD TRANSISTORS BC807-25 Q10996510010910TRANSISTOR ST8050C Q11994000004145TRANSISTORS B772Y (160-320) Q12996510010292SMD TRANSISTORS MMBT3904 Q13996510000315SMD TRANSISTORS BC807-25 Q14996510003996TRANSISTORS KTA1273 Q15996510010910TRANSISTOR ST8050C Q199965

29、10010910TRANSISTOR ST8050C Q2996510008369TRANSISTORS MMBT8050D (SOT23) Q21996510010292SMD TRANSISTORS MMBT3904 Q22994000004145TRANSISTORS B772Y (160-320) Q25996510010292SMD TRANSISTORS MMBT3904 Q3996510008369TRANSISTORS MMBT8050D (SOT23) Q4996510008369TRANSISTORS MMBT8050D (SOT23) Q5996510010292SMD

30、TRANSISTORS MMBT3904 Q5996510010910TRANSISTOR ST8050C Q6996510000315SMD TRANSISTORS BC807-25 Q7996510010292SMD TRANSISTORS MMBT3904 Q9994000004145TRANSISTORS B772Y (160-320) U101994000003636IC D8227 DIP U2994000000253IC (SAMSUNG) KA7808 U201994000000253IC (SAMSUNG) KA7808 U202994000002839IC LM1117S-

31、3.3 U203996510013793IC NCP803SN293T1G U204996510013794IC XC6210A122 1.2V U33994000001357IC LM78L05-AC X1994000004551CRYSTAL 16.9344MHZ +-20PPM S001994000003093CD DOOR SWITCH 1P1T DTS-03 J44996500042462FXDIND BEAD 100MHz 80R CON3996510005450SPK JACK PT-22V11A F1! 994000000586GLASS FUSE W/LEAD 3.15A/2

32、50V JACK1994000004369PHONE JACK TC38-063-05-0 JACK2996510000889PHONE JACK TC38-060-01 RING L2996500042462FXDIND BEAD 100MHz 80R L22996510000885CHOKE COIL 47UH W/PLASTIC TUBE L23996510000885CHOKE COIL 47UH W/PLASTIC TUBE L3996500042462FXDIND BEAD 100MHz 80R 8 - 1 ELECTRICAL PARTSLIST MCU BOARD ASSEMB

33、LY D41996500042438LED LAMP 2x5x7mm (WHITE) RE1994000004367OPTIC SENSER FM-6038TM2-5AN SW1996500042444TACT SWITCH 6x6mm 4.3mm SW10996500042444TACT SWITCH 6x6mm 4.3mm SW11996500042444TACT SWITCH 6x6mm 4.3mm SW12996500042444TACT SWITCH 6x6mm 4.3mm SW13996500042444TACT SWITCH 6x6mm 4.3mm SW2996500042444

34、TACT SWITCH 6x6mm 4.3mm SW3996500042444TACT SWITCH 6x6mm 4.3mm SW4996500042444TACT SWITCH 6x6mm 4.3mm SW5996500042444TACT SWITCH 6x6mm 4.3mm SW6996500042444TACT SWITCH 6x6mm 4.3mm SW7996500042444TACT SWITCH 6x6mm 4.3mm SW8996500042444TACT SWITCH 6x6mm 4.3mm SW9996500042444TACT SWITCH 6x6mm 4.3mm XT1996500039820CRYSTAL 10MHz 49/US XT2996500042441XTAL 32.768KHZ -20PPM Note:Only these parts mentioned in the list are normal service parts. 8 - 2