CE Tech Tips — July 2018

**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 TV,  60SDX88B
Reason for Service:  Shutdown
Solution: Check all: QH01,  C655,  IP05,  IP06,  DP05 and DP39.

LG TV, 42-LG50-UA
Reason for Service: Backlight not working, sound okay
Solution: Replaced master inverter, and F1, 3/4 amp fuse.

Panasonic Plasma, TC50PX14
Reason for Service: 10 flash error code, indicating A board.  Too expensive to replace.
Solution:  Found a shorted SM zener on the backside of the A board.  D5573

Samsung TV,  LN32A330J1
Reason for Service:  White picture, solarized
Solution:  The T-Con in this set used a AS15G chip; replacing it fixed the set.

Samsung TV, HP-T4254
Reason for Service: Set runs for hour or so then shuts down
Solution:  QX801 & QX802 in the power supply module had cold solder.  Resoldered anything else that looked bad.

Samsung TV,  UN55C8000
Reason for Service: Intermittently won’t start
Solution: Found bad solder connection on LM891.

Sony TV,  KP57HW40
Reason for Service:  Dead, relay clicks with 6 blink error code
Solution:  Found shorted D5002 on G board.  Sony #871906089

Toshiba TV, power supply PE0071G-1
Reason for Service:  Dead with light blinking
Solution: Repaired power supply by replacing Q880.  STRW6765

Vizio TV,  E321VL
Reason for Service:  Dead, no logo
Solution: Replaced EEprom and two caps.  CE25 & CE26.  100uF/16V.