Service Call 101-195
D146/D147/D148/D149/D150 5-14 SM
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC142-00 D White level detection error
The white level cannot be adjusted to the second target level
within the target during auto gain control.
§ SBU defective
§ LED defective
§ IDB (LED driver) defective
§ IPU defective
§ Power/signal harness defective
§ Scanner drive error
§ Condensation in scanner unit
§ Mirrors or lenses dirty or positioned incorrectly
§ White plate dirty or installed incorrectly
1. Turn the power off/on.
2. Perform the following operations:
§ Reconnect the power/signal harness.
§ Reattach/clean the mirrors/lenses.
§ Reattach/clean the white plate.
3. Replace the following parts:
§ Replace the SBU board.
§ Replace the LED board.
§ Replace the IDB board.
§ Replace the IPU board.
§ Replace the SIO board.
§ Replace the power/signal harness.
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