Subject CHANGE OF THE POWER UNIT
Model Serial Number
Model name
OLD NEW
LC-70LE743E 204011112 ~ 209011552 209011553 ~
LC-70LE741E 204011112 ~ 210012470 210012471 ~
LC-70LE741S 205011112 ~ 210013078 210013079 ~
LC-70LE740E 203011112 ~ 210018666 210018667 ~
LC-70LE740RU 204011112 ~ 209012015 209012016 ~
General
Symptom
Cause
We inform you about the details of the change of the power unit.
The power of the TV set is not turned on. Or the heat sink in the power unit becomes a high temperature
when the TV set is working.
Defective (short-circuit) diode D7805 in the power unit.
Servicing If the above mentioned symptom happened on the TV set which is within the OLD serial number range,
please check for the diode D7805 on the power unit by using a tester. If it is defective, replace the defective
power unit with the NEW power unit RUNTKA933WJN2.
For the details, please refer to the next page of this technical report.
Parts Ref. Parts code
No.
Description
OLD Q’ty NEW Q’ty
Interchangeability
PRINTED WIRING BOARD ASSEMBLIES
- POWER Unit RUNTKA933WJN1 1 RUNTKA933WJN2 1 C
Interchangeability
A: Completely interchangeable
B: OLD parts can be used in place of NEW parts.
B: NEW parts cannot be used in place of OLD parts.
C: OLD parts cannot be used in place of NEW parts.
C: NEW parts can be used in place of OLD parts.
D: Not interchangeable
