DPP-FP50
SECTION 4
TROUBLESHOOTING
4-1. ELECTRICAL TROUBLESHOOTING
SymptomCheck point
Power supplyPower cannot be1. MAIN board: Check of CN203, F302, IC201, IC404, IC410, Q205, Q207,
turned on.Q417 and peripheral circuits.
? Is 5.0 V output to TP456?
? Is 3.3 V output to TP428?
? IsnOt F302 shorted?
2. BGA board: IC101, IC102, IC103 and peripheral circuits
? Is 3.3 V output to TP104?
? Is 1.6 V output to TP101?
Memory cardMemory Stick cannot be1. MSSD board: Check of CN601, CN602, IC601 to IC603, peripheral circuits
recognized.and harnesses.
? Is 3.3 V input to 9-pin of CN602?
2. BGA board: Check of CN103, IC104, Q102, Q103 and peripheral circuits.
? When the Memory Stick is inserted, is 12-pin (MS detection) of CN103 in
the L state?
3. Check if the image in the Memory Stick is applicable file format (JPEG,
BMP, TIF).
4. Check if the Memory Stick has no problem.
SD card cannot be1. MSSD board: Check of CN601, CN603, IC601 to IC603, peripheral circuits
recognized.and harnesses.
? When SD is inserted, is 3.3 V input to 4-pin of CN603?
2. BGA board: Check of CN103, IC104, Q104, Q105 and peripheral circuits.
? When SD is inserted, is 10-pin (SD detection) of CN103 in the L state?
3. Check if the image in the SD card is applicable file format (JPEG, BMP, TIF).
4. Check if the SD card has no problem.
Compact flash cannot be1. MAIN board: Check of CN301, IC301 to IC309 and peripheral circuits.
recognized.? Is 5 V output from 8-pin of IC304 (3.3 V is input to 1-pin)?
2. Check if the image in the compact flash is applicable file format (JPEG,
BMP, TIF).
3. Check if the compact flash has no problem.
ExternalPictBridge-capable1. Check the communication by OUSBTest�in the service mode.
connectioncamera cannot be2. MAIN board: Check of CN201, CN203 to IC304, peripheral circuits and
recognized.harnesses
? Is 5 V output from 5-pin of IC304? (Is 3.3 V input to 4-pin?)
? Check of FB201 and L201.
3. BGA board: Check of CN102, IC104 and peripheral circuits.
? Check of R102, R104, R105 and R140.
4. USBA board: Check of CN801 and peripheral circuits.
Personal computer cannot1. Check the communication by OUSBTest�in the service mode.
be recognized.2. MAIN board: Check of CN202, CN203 and peripheral circuits.
? Is 5 V output to TP201 when PC is connected.
? Check of L203 and Q201.
3. BGA board: Check of CN102, IC103 and peripheral circuits.
? Check of R107, R108, R141 and R142.
VIDEO OUT cannot be1. MAIN board: Check of CN203, IC405, J401 and peripheral circuits.
output.2. BGA board: Check of CN102, IC104 and peripheral circuits.
? Check of R120 and R121.
14 |