CE Tech Tips — January 2016

Emerson TV, LC320EM9
Reason for Service: Set comes on to start screen then shuts down
Solution: R1943 & 1944 had changed value, and D1940 was shorted.  Replacing these fixed the set.  Used ECG502 for the diode.

Hitachi TV, 50V500A
Reason for Service: Intermittently dead
Solution: Check R964 for bad or cracked solder.

Hitachi TV, 51UWX20B
Reason for Service: The horizontal is out of sync
Solution: Replacing I401 fixed the set.

Mitsubishi TV, CS35305
Reason for Service: Set has sound but no HV.  Replaced the HOT; did not fix the set.
Solution: Check C9119 on pin 4 of IC9010 on the power board.  4.7uF/50V  

Panasonic TV, PT51HX43G P8
Reason for Service: Set powers up with a dark screen and has sound. After a while, you start to get a raster.
Solution: Replaced C509 on the D board.

Polaroid TV, FLM373B
Reason for Service: Set comes on, then goes to a blue screen
Solution: Found two bad caps in power supply, C112 and C113, 1000uF/16V.

RCA TV, ATC010 chassis.
Reason for Service: Shuts down, might be intermittent
Solution: Found R835 had increased in value. Replaced with 120k ohm.  Fixed the set.

Samsung TV, LNT2354H
Reason for Service: Dead set
Solution: This uses power supply BN44-00158A. Found and replaced bad DZB803 in the power supply.  22V/1W

Samsung TV, LN55B650T1F
Reason for Service: Dead set
Solution: CM807 was bad on the power supply board. 1000uF/25V.  Be sure to check and replace CM811 and CM841 and 1000uF/25V.

Sharp LCD TV, LC-26D4UJ
Reason for Service: No sound, comes and goes
Solution:  Replace TA2024 and install PSPKIT663WJZZ kit; this fixes the heat sink problem.