OLYMPUS C-960 Zoom Repair Procedure V2
D. REPAIR PROCEDURE
D. REPAIR PROCEDURE
[1] TROUBLESHOOTING GUIDE.................................................................................. D-2
POWER LOSS INOPERATIVE ............................................................................... D-2
TAKING INOPERATIVE .......................................................................................... D-2
NO PICTURE ......................................................................................................... D-2
SERVER_DIS
D-1
Ver.2
[ 1 ] TROUBLESHOOTING GUIDE
D. REPAIR PROCEDURE
POWER LOSS INOPERTIVE
BARRIER SW
OPEN
IC301-7 (SCAN IN 3)
PULSE INPUT
YES
IC302-7 (UNREG)
HIGH
IC301-81
(VDD)
HIGH
IC301-81
(RESET)
HIGH
IC301-20
(BAT OFF)
HIGH
IC301-79
OSCILLATION
YES
IC301-83
OSCILLATION
YES
CLOSED
CHECK POWER SW,
NO
LOW
LOW
LOW
CHECK IC302, R3051
LOW
NO
NO
BARRIER SW ON NORMAL
CN303, R3021,
D3003
CHECK ST1, CA1
CHECK IC302
CHECK R3052
CHECK X3001
CHECK X3002,
R3004, C3001,
C3002
TAKING INOPERATIVE
PUSH SUTTER
BUTTON
IC301-6, 7
(SCAN IN 2, 3)
PULSE INPUT
YES
CN301-7, 8
(P ON, P(A) ON)
HIGH
IC301-96, 97, 98
HIGH
YES
SERIAL
COMMUNICATION
OK
CHECK CA1
NO
LOW
NO
NG
CHECK S3029,
R3021, R3022,
D3022, D3038
CHECK IC301, ST1
CHECK
IC301, CA1, ST1
CHECK IC301,
R3001, R3003,
Q3001, CA1
CHECK IC301
NO PICTURE
CLK (96MHz)
INPUT TO
IC102-69 (CLK IN 1)
NO
CLK (48 MHz)
INPUT TO
IC101-132 (CLK IN 1)
OK
IC101-61 (ZAS)
OK
IC101-52
(ZBREQ)
OK
IC101-56
(ZBGRNT)
OK
IC101-118, 119
(IRL1, 2)
OK
CHECK SOLDERING OF
EACH CPU AND
MEMORY PIN
MAIN CLOCK FOR SYSTEM OPERATION
YES
NO OPERATION IF ABSENT
CHECK X1101 OSCILLATOR AND IC111
NG
BASIC CPU BLOCK
CHECK IC102-44
ALWAYS APPEARS WHEN CPU, ETC. IS ACCESSED
NG
CHECK IF CPU IS READKING PROGRAM, AND
CHECK ADDRESS AND DATA BUS OF IC121
REQUEST FOR USE OF DATA BUS FROM
NG
ASIC TO CPU NO DMA TRANSMISSION
IF ABSENT
RECEIVES ZBREQ SIGNAL AND GIVES PERMISSION
NG
TO ASIC FOR USE OF DATA BUS
NO DMA TRANSMISSION IF ABSENT
INCORRECT HANDSHAKING BETWEEN 8-BIT
NG
CPU AND RS-232C
CHECK EACH INTERFACE
SERVER_DIS
D-2
Ver.2
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