Troubleshooting - Toshiba GSC-R60 Service Manual

4. Troubleshooting

No. Condition
1 The power does not
turn on.
2 Not operational by
battery
3 Not operational by AC
adapter
4 No image displayed on
the LCD monitor
5 No image displayed
under the photography
mode
6 LCD back light does
not turn on.
7 Screen is too
bright/dark under the
photography mode
8 Unable to zoom
Analysis
Fuse F3201 disconnected
(Short circuit in LAN system)
Fuse F4201 disconnected
(Short circuit in system power supply)
Fuse F4301 disconnected
(Short circuit in 5V power supply system)
Fuse F4302 disconnected
(Short circuit in SDRAM power supply system)
Fuse F4303 disconnected
(Short circuit in HDD3.3V power supply system)
Fuse F4402 disconnected
(Short circuit in CCD-8V power supply system)
Fuse F4403 disconnected
(Short circuit in CCD13V power supply system)
Fuse F4401 disconnected
(Short circuit in U3V power supply system)
Fuse F4502 disconnected
(Short circuit in U3V power supply system)
Fuse F4501 disconnected
(Short circuit in battery charge system)
Fuse F4601 disconnected
(Short circuit in battery system)
Fuse F4701 disconnected
(Short circuit in system 3.3V)
Fuse F4802 disconnected
(Short circuit in motor system 5V)
Fuse F4801 disconnected
(Short circuit in 1.2V, 1.5V system)
Fuse F4902 disconnected
(Short circuit in CCD3.5V system)
Fuse F4901 disconnected
(Short circuit in LCD back light system)
Fuse F7001 disconnected
(Short circuit in cradle 10V system)
Fuse F6501 disconnected
(Short circuit in JACK board 10V system)
MAIN board defect
MAIN board defect
Cradle defect
Wiring defect in hinge
MAIN board defect
FPC-HEAD defect
CCD defect
AD converter defect
CCD board defect
Lens defect (iris)
MAIN board defect
Wiring defect in hinge
MAIN board defect
Lens defect
Lens adjustment data defect
FPC-ZOOM defect
MAIN board defect
25
Solution
Replace MAIN PCB ASSY (U001)
Replace Cradle (YR01)
Replace JACK PCB ASSY (UA02)
Replace MAIN PCB ASSY (U001)
Replace MAIN PCB ASSY (U001)
Replace cradle (Y540)
Replace LCD (HA54)
Replace MAIN PCB ASSY (U001)
Replace Lens Module ASSY
(HA52)
Replace MAIN PCB ASSY (U001)
Replace LCD ASSY (HA54)
Replace MAIN PCB ASSY (U001)
Replace Lens Module ASSY
Perform AE readjustment
Replace MAIN PCB ASSY (U001)
Replace Zoom Cover ASSY
(AA05)
Replace MAIN PCB ASSY (U001)