– 20 –
IC101-V12 (1ST)
PUSH SHUTTER
HALFWAY
HIGH
→
LOW
IC101-AB23
(PW_ON)
PUSH S3502
HIGH
→
LOW
YES
5. TROUBLESHOOTING GUIDE
POWER LOSS INOPERTIVE
PUSH POWER KEY
IC181-D1
(AL 3.2 V)
CHECK F5001, IC181
IC181-D3
(RTC_RESET)
CHECK IC181
IC181-E1
OSCILLATION
(RTC_CKOUT)
IC101-AD21, AD20
(PON, PON2)
CHECK IC181,
X1801, R1813,
C1816, C1817
CHECK IC101, IC501
CHECK PWA BLOCK
CHECK IC101,
X1102, R1121, R1122,
C1121, C1122
PUSH SHUTTER
BUTTON
TAKING INOPERATIVE
LOW
LOW
NO
LOW
NO
NO
HIGH
HIGH
YES
HIGH
X1102-1, 3
OSCILLATION
CHECK IC101, IC121
LOW
CHECK S3502,
RB104, CN102,
CN541
HIGH
HIGH
→
LOW
CHECK IC101, IC121
CHECK STA BLOCK
CHECK R1037,
S3501, CN102,
CN541
YES
LOW
NO
CHECK S3501,
D1001, R1030,
CN102, CN541
CHECK S3501,
CN102, CN541
HIGH
LOW
HIGH
→
LOW
FLASH OFF MODE
SHOOTING
POSSIBLE
CHECK S3501,
D1001, R1036,
CN102, CN541
HIGH
HIGH
→
LOW
CHECK DMA BLOCK
CL191 (VDD1.1) = 1.1 V
CL251 (VDD3) = 3.25 V
CL259 (VDD1.8) = 1.8 V
YES
IC101-AC13 (2ND)
PUSH SHUTTER
HIGH
→
LOW
