All codes
Service call
SC173
Lamp regulator adjustment error
BScanner / optics
Level B — stop, power-cycle may clear
First check
Regulator cannot be trimmed. Lamp then regulator.
What it means
Lamp regulator adjustment error. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- Regulator cannot be trimmed. Lamp then regulator.
On-site steps
Parts to have on the truck
- Lamp regulator
- Exposure lamp
Related codes
Confirm the subcode and part number in the FSM for this serial. Raicoh is a field companion, not a replacement for the book.