CE Tech Tips — August 2021

CE Tech Tips — August 2021

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, 50PJ350-UB
Reason for Service
: Set starts for a second then shuts off.
Solution: Check/Replace R927 & R929, both 22 ohm/5W.

Reason for Service: Dead set, 2 blink error.
Solution: Found Q855 in power supply shorted. SD20N60.

Panasonic TV, TH58PX600U
Reason for Service: Dead set,10 blink error.
Solution: Replacing PA board fixed set. 

Samsung TV, PN51D550C1
Reason for Service: Six blink code when set plugged in,
but will not turn on.
Solution: Found bad Y main, then found shorted C5020
on Y main.  Replaced C5020.



Samsung TV, UN55FH6030FXZA
Reason for Service: Backlight flickers. Cleaned cable ends, no improvement.
Solution: Replacing power supply fixed set.

Sharp TV, LC-60LE600U
Reason for Service: Set will turn on with no picture, sound or backlights.
Solution: First check for bad solder to LED strips.

Vizio TV, VO47L FHDTV10A
Reason for Service: No backlights, audio okay.
Solution: Replaced following: C241, 470uF/35V in power supply, C2 & C3 both 680uF/35V on master inverter board plus 10A fuse F1, and C102 & C103, both 680uF/35V on slave inverter board.

Vizio TV, E401i-A2
Reason for Service
: No backlights.
Solution: Replacing LED driver board fixed set.


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