Sanyo VPC-J1 Service Manual

Also see for Xacti VPC-J1: Instruction manual

Contents

– 17 –5. TROUBLESHOOTING GUIDEPOWER LOSS INOPERTIVETURN THE SELECTDIALIC301-2(SCAN OUT2)PULSE INPUTCHECKCN306-3~8IC302-7 4.7 V(BOOST 4.7 V)CHECK CP1, IC954,Q9512IC301-10(VDD)IC301-36(RESET)CHECK IC302CHECK IC302, R3004IC301-43(BAT OFF) CHECK R3003IC301-40OSCILLATION CHECK X3001IC301-37OSCILLATION CHECK X3002CHECK IC301PUSH SHUTTERBUTTONIC301-54, 55(SCAN IN 4, 5)PULSE INPUTCHECK UNITCONTROL PANEL,D3012, R3024, R3025CN301-5, 6(P ON, P(A) ON)CHECK IC301,RB301, PW1SERIALCOMMUNICATIONCHECK IC301,CP1 DMA BLOCKCHECK CP1 DMABLOCKTAKING INOPERATIVENOYESLOWLOWLOWNONONOYESHIGHHIGHHIGHYESYESYESHIGHOKNOLOWNGNO PICTUREMAIN CLOCK FOR SYSTEM OPERATIONNO OPERATION IF ABSENTCHECK X1101 OSCILLATOR AND IC111CLK (98 MHz)INPUT TOIC101-5 (CLK IN 1)CLK (48 MHz)INPUT TOIC101-6 (CLK IN 2)CHECK IC111 etc.IC301-15, 16(ASIC_SO, ASIC_SI)CHECK SOLDERINGOF MEMORYEACH PININCORRECT HANDSHAKINGBETWEEN 8-BIT CPU AND ASICCHECK EACH INTERFACEOKOKOKNGNGNG