Electric Problems - Olivetti JS-670 Service Manual

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Electric problems

Troubleshooting to each failure must be in the order of the numbered symptoms.
Problem
(1)
The feedshift sole-
noid does not oper-
ate.
Y108701-1
Causes
1. Broken solenoid coil.
2. Poor contact in the con-
nector terminals.
3. Defective engine PWB.
Check procedures/corrective measures
Check for continuity across the coil. If none, replace the solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U033 and check if the feedshift solenoid
operates. If not, replace the engine PWB.
Service Manual
3LC
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