Mulja tv repair portal
Equipment Repairs => PLASMA TV forum => Topic started by: yellowpinky on March 26, 2012,08:13:04
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Hello group,
When switched on the led flashes then the relay clicks.
No sound or picture.
I disconnected the upper buffer board (LJ92-01491A)(LJ41-05121A)
and the bottom half lit up (low brightness)but no picture.
Sound is ok, so must be tuned in.
I removed the Y-Sus board (LJ92-01490A)(LJ41-05120A)
and found C5715,C5709,C5300 680uf 25v domed.
These were replaced but no improvement.
I have checked the FET's are ok and checked for dry joints.
Any help would be good.
Many thanks Ian Harrison.
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Hi Ian,
Has the buffer board got FET's fitted to it?
If yes they are likely to have failed
Try taking the buffer out and carry out a resistance check between earth and all the socket connections to the screen ribbons(it takes a while!)
If your buffer is faulty, it is likely to have been taken out by the Ysus
Hope this helps
Brian