Panasonic LH-55RM1MX, Service Manual, Page: 21 / 53

SECTION 1 SERVICE INFORMATION
4. 1. Troubleshooting flow
4. 1. 1. No power
No power (LED “Off”)
Check the AC input and
the power is “ON”?
Yes
Power board CN924 Pin
2/3 output=5.2V?
Yes
Use RC or Key to turn on
the PD
No
Replace the Main board
No
No
Yes
Power “On”
Replace the Power board
1. RC can turn on the PD and Key can’t,
replace the key board.
2. Key can turn on the PD and RC can’t,
replace the RC.
INF-12