Troubleshooting; Electrical Troubleshooting - Sony DPP-FP90 Service Manual

3-1. ELECTRICAL TROUBLESHOOTING

Symptom
Power supply Power cannot be
turned on.
Memory card Memory Stick or Memory
Stick Duo cannot be
recognized.
SD card or miniSD card
cannot be recognized.
CF card cannot be
recognized.
External PictBridge-capable
connection camera cannot be
recognized.
Personal computer cannot
be recognized.
LCD of main unit cannot
Indication and
be displayed.
operation
Key operation
There is no response to
the key operation on the
operation panel.
There is response to
the key operation, but
printing cannot be made.
Printed image is abnormal.
DPP-FP90

3. TROUBLESHOOTING

Check point
1. MAIN board;Confirmation of F202, Q206, IC210, Q222, and circuit in surrounding
•5V in TP229.
•3.3V in TP236.
•1.6V in TP249.
•Disconnection of F202
•IC103, IC204, and circuit in surrounding
1.MAIN board:CN501, Q507 and confirmation of surrounding circuit and FFC
2.MSSD board:Confirmation of CN701 and CN702.
3.3V per nine pin of CN702.
Is four pin of CN501 (MS detection) "L"?
3.Confirmation of image in MS
4.Confirmation whether there is in MS problem
1.MAIN board:CN501, Q508, and confirmation of surrounding circuit and FFC
2.MSSD board:Confirmation of CN701 and CN703.
3.3V per 11 and 12 pin of CN703.
Is 18 pin of CN501 (SD detection) "L"?
3.Confirmation of image in SD
4.Confirmation whether there is in SD problem
1.MAIN board:CN505, IC501, and surrounding circuit
3.3V per 6 pin of IC501
2.Is CL501 (CF detection) "L"?
3.Confirmation of image in CF
4.Confirmation whether there is in CF problem
1.MAIN board:LF402, IC406,407, IC103, and the surrounding circuit
5V in TP405
Confirmation of IC404
2.Confirmation of the camera cable of PictBrige
1. MAIN board:LF401, IC406,407, IC103, and the surrounding circuit
Have 5V gone out to TP403 whenPC is connected?
2.Confirmation of the PC cable
1.MAIN board:CN504, Q510, IC103, and the surrounding circuit
10 to 16V in CN504 36 pin
2.LCD board:CN601, CN602, and the surrounding circuit
1.Operation is confirmed in the button test of the service mode.
2.KEY board: Each SW and FFC soldering confirmation
3.MAIN board:CN203, IC209, IC204, IC103, and the surrounding circuit
1.MAIN board:CN206, IC211, IC210, IC204, and the surrounding circuit
2.Does not F201 cut?
3.Whether abnormality is found in the mechanism deck
1.MAIN board:CN204, CN205, and the surrounding circuit
2.Whether abnormality is found in the mechanism deck
1.Prints with Mechanic Test of the service mode and confirms it
2.MAIN board:CN208, IC204, and the surrounding circuit
3.Whether abnormality is found in the mechanism deck
3-1