Sanyo VPC-HD700 Service Manual
Also see for VPC-HD700BR: Safety manualInstruction manualInstruction manualInstruction manual
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– 23 –5. TROUBLESHOOTING GUIDEPOWER LOSS INOPERTIVEPUSH THE POWERSW FOR A WHILEIC301-44(SCAN OUT2)PULSE INPUTCHECK S3003IC302-7 5.3 V(BOOST 5.3 V) CHECK IC501IC301-9, 38, 62(VDD)IC301-56(RESET)CHECK IC302CHECK IC302, RB312IC301-52(BAT OFF) CHECK RB312IC301-58OSCILLATION CHECK X3002CHECK IC301PUSH SHUTTERBUTTONIC301-23, 24(KEY_1st, KEY_2nd)LEVEL INPUTCHECK SW UNITIC501-26, 32 (PON)Q5010-2 (PON2)IC501-30 (PAON1, 2)CHECK IC301, IC101,PWA BLOCKSERIALCOMMUNICATIONCHECK IC301,CP1 DMA BLOCKCHECK CP1 DMABLOCKTAKING INOPERATIVENOYESLOWLOWLOWNONOYESHIGHHIGHHIGHYESYESHIGHOKNOLOWNGNO PICTUREMAIN CLOCK FOR SYSTEM OPERATIONNO OPERATION IF ABSENTX1102CHECK OSCILLATIONIC301-67, 66(ASIC_SO, ASIC_SI)CHECK SOLDERINGOF MEMORYEACH PININCORRECT HANDSHAKINGBETWEEN 8-BIT CPU AND ASICCHECK EACH INTERFACEOKOKNGNG |
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