JRC JMR-92 Series Field Service Manual page 588

2: Start up the Display Unit
Switch on both AC and DC circuit breakers at the PSU.
The system is turned on automatically only after the first time turning on the main switch. And
after a few seconds, the system of the power is down and up automatically. This is a normal
behavior. Go on to next step.
When the system will not boot up, check the ship's main and the main switch of PSU and
press the power button on the trackball operation unit.
Turn on the main switch.
4-367
Main Switch
Main Breaker
Power Button
Chapter 4 Replacement procedure