Minolta Di 620 Manual page 288

19) C0F24 : AIDC Sensor UN6 Contamination Correction Failure
AIDC Sensor UN6
C0F24
Step
1 Are PJ10A, CN27, CN21, and CN64
plugged securely into PWB-A?
2 Is the photosensor/LED of the AIDC Sen-
sor contaminated?
Relevant Electrical Parts
Check Item
Master Board PWB-A
Result
NO Plug them in securely.
YES Clean UN6 and run the F5 operation.
NO Change UN6 or PWB-A and run the F5
operation.
T-73
1155C23TAA
Action