Brother Z-8550A, Service Manual

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11. ELECTRICAL MECHANISM
Z-8550A, 8560A
94
11-5. Troubleshooting
11-5-1. Troubleshooting procedure
Carry out troubleshooting by following the procedure given below.
1 Checking connectors
With the power turned off, check that all connectors are securely inserted while
referring to “11-4. Description of connectors”.
2
Diagnosis flowchart
Carry out diagnosis while following the steps in “11-5-2. Diagnosis flowchart” on the
next page, and if a problem No. is reached, continue to the next procedure.
3
Remedy
Refer to “11-5-3. Remedy” for the item that corresponds to the problem No. After
identifying the cause in the “Cause” column, carry out the necessary inspections,
repairs or adjustments, and replace any parts if a problem is found.
NOTE:
When replacing the fuses, be sure to use a fuse with the same material and rating.