Tech Tips – December 2015

CE Professional Tech Tip Sharing

December 2015

**NOTICE**

Due the danger and complexity of electronics repair, the following shared
technical tips are intended for professional reference only. Please refer to
manufacturer’s recommendations as Encompass does not guarantee the accuracy,
reliability or safety of this information.

Hitachi Plasma TV, 42HDS52A

Reason for Service: 
Blacks look reddish, may have many vertical lines,
easier noticed on dark scenes

Solution: Replaced logic
board assembly, part number FPF29R-LGC0057.

Hitachi TV, 53FDX20B

Reason for Service: No sync on main picture, but PIP picture is okay

Solution: Replaced IX04.

LG Plasma, 50PJ350.UB

Reason for Service: Set tries to power up with a click, then shuts back off

Solution: Check R927 and
R929 in the power supply.  22ohm,
5W.  Replace with correct resistors,
#EBC606600801.

Magnavox LCD TV, 26MD255V/17

Reason for Service: Channels change automatically, intermittently

Solution: Found a leaky
surface mount cap on the button PCB at the top of the set.

Mitsubishi TV, WS55413

Reason for Service: No horizontal deflection

Solution: Found bad solder
on Q5A01; resoldering fixed the set.

Panasonic TV, PT51HX43G

Reason for Service: No picture, but showing retrace lines

Solution: Replacing Q944 and
Q945 fixed the set.

RCA TV, ITC008

Reason for Service: Shuts down, cycles on and off, no video or audio

Solution: Replaced a bad 5V
regulator, IP031.  Used a NTE960 for
replacement.

Samsung LCD TV, LTN1535

Reason for Service: Dead

Solution: Found C109 bad,
replacing fixed the set.  1000uF/16V

Sharp LCD TV, LC-26D4UJ

Reason for Service: No sound, or it comes and goes

Solution:  Replaced TA2024 and installed PSPKIT663WJZZ Kit. This
fixed the heat sink problem.

Sony TV, DA4

Reason for Service: HV comes up for a second, then shuts down

Solution: Replacing C6556
fixed the set.

Vizio TV, L32

Reason for Service: No or garbled audio.

Solution: Replaced audio IC
TDA8946AJ.