Subject POWER UNIT FAILURE (Short-circuit BD7000)
Model
POWER UNIT
MODEL POWER UNIT
PARTS CODE
AFFECTED S/N RANGE
OF POWER UNIT
LC-46D65E
LC-46D65RU
LC-52D65E
LC-52D65RU
LC-46DH65E
LC-46DH65S
LC-52DH65E
LC-52DH65S
LC-46DH77E
LC-46DH77S
LC-46DH77RU
LC-52DH77E
LC-52DH77S
LC-52DH77RU
RDENCA308WJQZ
A90W0838024551 ~ A90W0839054290
General
Cause
No power
Power unit failure due to short-circuit Bridge diode BD7000
Servicing
Refer to
If the bridge diode BD7000 in the power unit RDENCA308WJQZ is short-circuit, replace the diode BD7000, fuse
F7000 and F7001 with new one. Only if any of pin of the diode is short-circuit, perform this countermeasure.
By using the tester, check each pins of the bridge diode BD7000 with mounted condition.
For how to check, use the diode check function or check if the resistance of each pin is a few ohms or less.
Follow the next pages of this technical report.
Service Manual
Parts
REF# DESCRIPTION PARTS CODE Q’ty
BD7000 Bridge Diode (D15XB60-7000) 9NKA0123610020 1
