Wednesday, May 30, 2018

Repairing LG 60PB5600-UA 60PB6650-UA no image problem - bad EBR77186101 only hint

Just posted a video yesterday discussing a unique manifestation of otherwise common problem we've seen and documented in LG buffer board EBR77186101 found in LG 60PB5600-UA, LG 60PB6650-UA and possibly others:


Presently we do test and service the buffer boards through the LG YSUS board EBR77185601 repair service listing or through the whole LG EBR77185601 / EBR77186101 / EBR77186201 trio exchange service.


Only the capacitor that tends to go bad was bad; the other two were not.

Also, the other two have different values, even though they are in parallel; must be because they are designed to suppress different harmonics.

Also, just a reminder that this is the first time we've seen ONLY the buffer board fail; 99% of the time we've seen a problem with those sets it's because of a failed YSUS board.

Note the capacitor from the buffer is now included in the repair kit for YSUS EBR77185601 .

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