Blinking 4 red, 8 yellow lights
An error code of 48 indicates a main power board failure. There is a short down the 3.3v or 5v switched supply.
recommend replace main power board.
part# 934C409001
see the following website:
http://www.shopjimmy.com/mitsubishi/wd-73c11?cat=59&q=WD-73C11&tv_models=Mitsubishi+WD-73C11
SOURCE: 4red and 8 yellow code flash
I cannot post URLs here. Please try go googling this: "WD-73738 error codes"
The first result looks promising
:-)
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