OLYMPUS C-770 UZ REPAIR PROCEDURE V1
C-770Ultra Zoom
D. REPAIR PROCEDURE
[1] TROUBLESHOOTING GUIDE .................................................................................. D-2
POWER LOSS INOPERATIVE ............................................................................................ D-2
TAKING INOPERATIVE ....................................................................................................... D-2
D-1
Ver. 1
[1] TROUBLESHOOTING GUIDE
D. REPAIR PROCEDURE
C-770Ultra Zoom
POWER LOSS INOPERTIVE
IC652-7 (TB1)
(BOOST 4.4 V)
HIGH
IC652-6, 8 (TB1)
(VDD, AL3.2 V)
HIGH
IC301-52 (SCAN IN 4)
PULSE INPUT
YES
IC301-9
(RESET)
HIGH
IC301-13
(BAT OFF)
HIGH
IC301-7
4MHz OSCILLATION
YES
IC301-10
32.768kHz
OSCILLATION
YES
LOW
LOW
LOW
LOW
CHECK PW1, ST1
CHECK IC652 (TB1)
CHECK PFC include
NO
POWER SW, CN302,
D3002, RB302, RB306
CHECK IC652, RB651
CHECK RB651 (TB1)
NO
NO
CHECK X3001
CHECK X3002,
R3013, C3014, C3015
(TB1)
TAKING INOPERATIVE
PUSH SHUTTER
BUTTON
IC301-54, 53
(SCAN IN 2, 3)
PULSE INPUT
YES
IC301-34, 35
(P ON, P(A) ON)
HIGH
CN301-28, 50
HIGH
YES
SERIAL
COMMUNICATION
OK
CHECK CA1
NO
D3002, D3003, RB302, RB306
LOW
CHECK IC301, PW1
NO
NG
CHECK PFC include
SHUTTER SW, CN301,
CHECK IC301
CHECK IC301
CHECK IC301
D-2
Ver. 1
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