CE Tech Tips — February 2023

CE Tech Tips — February 2023

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: Weak or washed out color when OSD color adjusted.
Solution: Found and replaced shorted ZD-306.

Reason for Service: Bottom half of picture is black.
Solution: Replacing lower buffer fixed set. 

Samsung UN60EH6000F
Reason for Service
: Backlights come for just a second, then go back off.
Solution: Replacing power board fixed set. Saw some bad caps on power board.

Samsung TV, LN52B530P7FXZA
Reason for Service: Sound okay, but no picture.
Solution: Replace C1804, (box cap) on IP board. 684k/400V.


Sharp TV, LC60C8470U
Reason for Service: Error code, two long, two short.
Solution: Found bad 4 pin regulator Q7120 under heat sink. Replacing fixed set.

Sony TV, KDS60A2000
Reason for Service: Dead set, five blink code.
Solution: Replacing ballast fixed set.

Vizio TV, M471I-A2
Reason for Service: Dead set.
Solution: Found and replaced shorted diode in power supply. D950.

Vizio TV, E320-A0
Reason for Service: Dead set.
Solution: Found open SM 5A fuse on mother board, and one of three ceramic caps near fuse was shorted to ground. Removed cap.

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