Subject LOUD HUM NOISE FROM INVERTER UNIT
Models LC-26P50E
General We would like to inform you of service information for the above mentioned model.
Phenomenon Loud hum noise is heard from inverter unit. The hum noise disappears when the back light level
is adjusted to maximum.
Cause The hum noise is generated from transformer T7501 with insufficient varnish impregnation
amount.
Servicing If such hum noise appears, replace the transformer T7501 with new one.
T7501 is located on the inverter unit RUNTKA151WJZZ. Refer to the service manual.
Parts Ref No. Description Parts code Price
code
T7501 Transformer 9JG0034113955 AY
