Johnson T8000PRO, Service Manual

Page: 28 / 49

28
No display on console
Possible causes:
1. Breaker is damaged.
2. ON/OFF switch is damaged.
3. Incline power board is damaged
4. 20-pin console cable is damaged
5. PCB is damaged
Fix:
1. Inspect the circuit breaker to see if it has tripped off.
(If it is tripped off….like diagram
B
, reset the breaker. And check which
part is short-circuited. Then replace the short-circuited part.)
A B
2. The switch is turned to the "ON" position.
( If the switch light isn't lit, replace the switch.)
2-1 Verify wire connection
AC1
&
AC2
on the MCB
.
(Please refer the” MCB WIRING” ……page 10)
3. Verify the MCB whether supply the +12VDC for console.
(Please refer the” MCB WIRING” ……page 15)
4. Replace 20-pin console cable .
5. Replace PCB