Sharp VL-A10U Service Manual page 37

6-5-2. Troubleshooting for the camera section
No picture
No color
No auto white balance function
No auto focus function
No power zoom function
Normal
6-5-3. Charging mode troubles
Start
Is ADP-DET "H"? *1
"L"
Is CHG-ON "L" or "H"? *2
"H"
Is BAT DET "OV" ?
NO
Is BAT DET CK voltage more
than 2.8V or less than 5.9V.
YES
Is the output voltage of Q2901,
1pin more than 7V.
YES
Is Q2905 collect voltage
indicating.
more than 3V
Check the D2913 ,
R2921~R2923 and CP901.
*1: Inputting DC power and set the ADP DET "L".
*2: Inputting charging mode as CHG ON "H".
"H"
Check the circuit of SYSCON.
"L"
Check the circuit of SYSCON.
YES
Check Q2911, R2914, R2915
and battery terminal unit.
NO
Battery is defective.
NO
Check the AC adapter.
Check Q2905, IC2901 and around the circuits.
less than 3V
û
Check the lens drive circuit (IC551) and main signal
YES
line.
û
Check IC201 (DSP), and their peripherals.
YES
û
YES Check IC706 (camera CPU part of I chip -computer),
IC551 (Lens driver) and its peripherals.
û
Check IC706 (camera CPU part of I chip -computer),
YES
IC551 (Lens driver) and their peripherals.
û
YES Check IC706 (camera CPU part of I chip -computer),
IC551 (Lens driver) and their peripherals.
37
VL-A10U/UC/UA/UW/T/K
VL-AH30U/UC/T