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11. ELECTRICAL MECHANISM
Z-8550A, 8560A
91
11-3-2. Main P.C. board (fuses and fuse resistors)
No. Part name Parts code Symptom when fuse blows
F
Fuse 8A
(Glass tube fuse 8A-250V)
J04502-001
[Err 790] is displayed when the sewing machine
starts.
R25 Fuse resistor 1/2W 0.22Ω J02754-001
Power does not turn on and green LED (1)
does not illuminate.
0162B