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