Philips MCB146, Service Manual

Page 1: ...y 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 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...

Page 2: ...AL 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 15 W Standby 4 W Specifications and external appearance are subject to change without 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 Lev...

Page 3: ...15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion 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 Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50 Bandpass 250Hz 15kHz e g 71...

Page 4: ...ng 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 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 ...

Page 5: ...T 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 loaders 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 ...

Page 6: ...viously 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 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 synthet...

Page 7: ...DISASSEMBLY DIAGRAM VIEW 3 1 3 1 ...

Page 8: ...SET BLOCK DIAGRAM 4 1 4 1 ...

Page 9: ...MCU SET WIRING DIAGRAM 4 2 4 2 ...

Page 10: ...5 1 5 1 CIRCUIT DIAGRAM MAIN BOARD CD PART ...

Page 11: ...CIRCUIT DIAGRAM MAIN BOARD AMP POWER SUPPLY PART 5 2 5 2 ...

Page 12: ...CIRCUIT DIAGRAM MAIN BOARD TUNER PART 5 3 5 3 ...

Page 13: ...5 3 5 3 LAYOUT DIAGARM MAIN BOARD COMPONENT SIDE VIEW ...

Page 14: ...5 4 LAYOUT DIAGARM MAIN BOARD COPPER SIDE VIEW 5 4 ...

Page 15: ...CIRCUIT DIAGRAM MCU BOARD 6 1 6 1 ...

Page 16: ...LAYOUT DIAGARM MCU BOARD 6 2 6 2 ...

Page 17: ...EXPLODED VIEW DIAGRAM 7 1 7 1 ...

Page 18: ...213 994000001295 DAMPER GEAR ASS Y 214 996510013809 PROGRAM REPEAT BUTTON 215 996510008376 CASS DOOR BOGUS 216 996510006662 POWER BUTTON 217 996510013811 PRESET BUTTON 218 996510013812 DISPLAY LENS D001 996510013795 LCD DISPLAY J001 994000004487 16P FFC 1MM L 170MM J002 996510013800 11P FFC 1 25mm L 100mm J005 996510013801 FM ANT BALANCE CABLE 1x2 1m J008 996510006841 15P FFC 1mm L260mm J011 99651...

Page 19: ...510010292 SMD TRANSISTORS MMBT3904 Q3 996510008369 TRANSISTORS MMBT8050D SOT23 Q4 996510008369 TRANSISTORS MMBT8050D SOT23 Q5 996510010292 SMD TRANSISTORS MMBT3904 Q5 996510010910 TRANSISTOR ST8050C Q6 996510000315 SMD TRANSISTORS BC807 25 Q7 996510010292 SMD TRANSISTORS MMBT3904 Q9 994000004145 TRANSISTORS B772Y 160 320 U101 994000003636 IC D8227 DIP U2 994000000253 IC SAMSUNG KA7808 U201 9940000...

Page 20: ...42444 TACT SWITCH 6x6mm 4 3mm SW2 996500042444 TACT SWITCH 6x6mm 4 3mm SW3 996500042444 TACT SWITCH 6x6mm 4 3mm SW4 996500042444 TACT SWITCH 6x6mm 4 3mm SW5 996500042444 TACT SWITCH 6x6mm 4 3mm SW6 996500042444 TACT SWITCH 6x6mm 4 3mm SW7 996500042444 TACT SWITCH 6x6mm 4 3mm SW8 996500042444 TACT SWITCH 6x6mm 4 3mm SW9 996500042444 TACT SWITCH 6x6mm 4 3mm XT1 996500039820 CRYSTAL 10MHz 49 US XT2 9...