Toshiba E-STUDIO2508A - 8.3.11 Scanning system related service call

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ERROR CODE AND TROUBLESHOOTING
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8.3.11 Scanning system related service call
[C260] Peak detection error (e-STUDIO206L/256/306/356/456/506)
Classification Error content
Scanning system related service
call
Peak detection error
Proce
dure
Check item Result Measure Next Step
1 Flat cable connecting the
SLG board and the CCD
board
1. Check if the harness at the SLG board side is
inserted into the slot of the connector properly.
2. Check if the lock of the connector at the SLG
board side is locked properly.
If normal,
go to 2.
2 Is the exposure lamp lit?
(Output check: 03-267)
Yes It is lit. 3
No It is not lit. 4
3 Shading correction plate 1. Check if there is any scratch or stain on the shading
correction plate.
2. Check if the shading correction plate is any scratch or dirty.
Mirror 1. Check if the mirror is tilted.
- Check that the lens is reflected in the mirror looking at
carriage-1 from an upper position.
- Check that the mirror is secured at the leaf spring.
Exposure lamp 1. Check if the exposure lamp is correctly lit.
2. Check if the harness is connected properly to the connector
of the inverter board or the LED board.
3. When the carriage is driven, check if the harness interferes
with it or parts are caught in it.
CCD board / Lens unit 1. Check if the connector of the CCD board is connected
properly.
2. Check if the CCD board is installed properly. (Check that the
lens unit is not tilted or the screw is securely tighten.)
SLG board 1. Check if the connector of the SLG board is connected
properly.
2. Check if the mounted parts on the SLG board are damaged
or abnormal.
3. Check if 10 V is output from the power supply for CCD.
4 SLG board 1. Check if the supply cable is connected properly to the
connector.
2. Check if the mounted parts on the SLG board are damaged
or abnormal.
Inverter board / LED board 1. Check if the harness of the exposure lamp is connected to
the inverter board or LED board properly.
2. Check if the supply harness to the inverter board is
connected properly.
3. Check if the mounted parts on the inverter board or the LED
board are damaged or abnormal.
Exposure lamp 1. Check if the harness of the exposure lamp is connected to
the inverter board or LED board properly.
2. Check if the exposure lamp is scratched or damaged.
Supply harness 1. Check if wiring of the supply harness (CN127) is abnormal.
2. Check if the harness is scratched or open circuited.