Olivetti ECR 7900 Service Manual page 35

Trouble shooting
- Start up the Diagnostic software and check whether winding motor is properly working or
not.
CHECK
- If Winding motor does not work, start up Diagnostic software again and
check the following voltage when the test report is printing on a receipt.
Note)
When a printer is not working, the power supply of the winding motor should be OFF status / 0V.
Therefore make sure the following voltage should be checked during the printing in the diagnostic
checking.
Check voltage (DC +7.6V) at point (1)
If it output properly - - - Replace the motor
If it does not output properly - - - Check Power supply circuit (p. 9-11)
Check voltage (DC +5.0V) at point (2)
If it output properly - - - Replace the motor or Main board
If it does not output properly - - - Replace the Main Board
Y108540-8 ECR 7900 Service Manual
- - -See 4-1. DIAGNOSTIC SOFTWARE
29