Tag - tv repair

CE Tech Tips — June 2020

**NOTICE**
Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.

LG TV, 47LE5500
Reason for Service: Set seems to start with white LCDs flashing, backlight comes on but no audio or video.
Solution: Replacing main board fixed set.

LG Plasma TV, 60PK750
Reason for Service: Set powers up normally with two clicks when you turn it on, but if you turn it off and back on again, set won’t come on. Red LED blinking.
Solution: Replace cable between main and power board.  EAD60958306

Polaroid TV, FLM323B
Reason for Service: Dead set.
Solution: Replace all caps in power supply and under heatsinks.

Samsung TV, LN32D430G3DXZA
Reason for Service:  Backlights not coming on, audio okay.
Solution: Power supply had some distressed areas from excessive heat; replaced entire module.  BN44-00438B

Samsung TV, HL67A750A1FXZA
Reason for Service: Set shuts down and 3 LEDs blink in the front.
Solution: Replacing LED driver board fixed set.

Sony TV, KDL55HX729
Reason for Service: Won’t power up, 2 blink error code.
Solution: Check and replace as necessary:  Q6602 & Q6603 on secondary power board and R6540 on main power board.  0.1 ohm/2W

Vizio TV, GV47LFHDTV10A
Reason for Service: At turn on, relay clicks and then clicks again in a few seconds. All yellow LEDs on set front are on, and you can only turn off by unplugging set.
Solution: Check for open 1.5A fuse on main board or check U5.  AMC1117

 

 

 

 


CE Tech Tips — May 2020

**NOTICE**
Due to the danger and complexity of electronic equipment repair, the following technical tip is 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, 53FDX20B
Reason for Service: Raster pulls in on bright scenes.
Solution: Found open connection at T703 and repaired.

JVC TV, LT-42E478
Reason for Service: At power on, Power light comes on
for a few seconds and blinks, but set doesn’t come on.
Must unplug before trying again.
Solution: Found shorted cap on T-Con board. C333, 330pF

 LG TV, 55LM4600
Reason for Service: Backlights on, no video, blue screen.
Solution: Replacing T-Con fixed set.

Samsung TV, HL67A750A1FXZA
Reason for Service : Dead, might be intermittent.
Solution: Found and replaced 8 bad caps in power supply.

 Samsung TV, LN46A500T1FXZA
Reason for Service: Colors wrong, kind of negative looking.
Solution: Replaced T-Con or U7 on T-Con, AS19-H1G. 

Sony TV, KDL-52XBR9
Reason for Service: Picture comes on, then goes off; does this three times before shutting down for good. 10 Blink error code.
Solution: Main board had to be replaced.

Toshiba TV, 57HX93
Reason for Service: Dead set.
Solution: Found and replaced 2 bad caps on sub power board.

Vizio TV, E461-A1
Reason for Service: No picture, backlight or sound, but LED turns white at turn on.
Solution: Replacing EEPROM fixed the set.