Philips MCM238 free download

File name Philips-MCM238 audiosys.pdf

MCM238 Service AIDS & CD playability ...1-1...1-4 Specifications ...2 Connection & Controls ...3 Disassembly Instructions ...4 Block & Wiring diagrams ...5 C-MUSIC & USB BOARD ...6 KEY & USB JACK BOARD ...7 POWER & AMP JACK BOARD ...8 EXPLODE DIAGRAM ...9 SERVICE PARTLIST ...10 FACTORY PARTLIST ...11 3141 785 32000 1-1 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 GB WARNING ESD 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 via a wrist wrap with resistance. Keep components and tools also at this potential. 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 ! CLASS 1 LASER PRODUCT . Lead free 1-2 CD PLAYABILITY CHECK Customer complaint "CD related problem" Set remains closed! check playability 1 playability ok ? Y N "fast" lens cleaning check playability 3 For flap loaders (= access to CD drive possible) cleaning method 4 is recommended Standard repair procedure playability ok ? Y N clean the lens 4 check playability Play a CD for at least 10 minutes check playability playability ok ? N Y playability ok ? Y N check "EYE-Pattern" 5 return set add Info for customer "SET OK" 2 EYE-Pattern ok ? Y N replace CD Drive return set check Laser current 6 return set 1 - 7 For description - see following pages Laser current ok ? Y N replace CD Drive check CD Drive offsets 7 return set Y CD Drive offsets ok ? N replace Signal Processor replace CD Drive return set return set 1-3 CD PLAYABILITY CHECK 1 PLAYABILITY CHECK LIQUID LENS CLEANING 4 Before touching the lens it is advised to clean the surface of the lens