my magnavox 47mf437b137 lcd tv the screen went black i have no sound but the sound of like a bird chirping
Hello JA Customer I have been fixing Tv and Electronics since I was 5 years old With better than 20 years experience and 17 years in business
Do you get the chirping as soon as you plug it in ??
or after you turn it on?
after turn it on
so you have a yellow standby light
no the light stays green as normal
then you turn it on the light goes green and it chirps and changes back to yellow?
or does the light flash with the chirp?
light always green chirps as soon as turned on
it sounds like you have a shorted out power supply
do you have any repair abilities or expereince?
yes plenty would it b the 2 caps
it might have been originally but I think its gone and destroyed the SCR Fets
check them with your meter bet they are dead shorted
if i replace them will it work or do i need new power supply
well lets see what a power supply cost
how do i find a power supply
seems to be out of stock in alot of places
must not b the only one with this problem haha
cant find any USED or PULLS they woukld be around $ 90.00
but that is new one
and it seems to be the only option
you can try changing the blown fets and the caps
it might work it might not
i have 50% repair rate on those
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20 years experience in TV Repair TV Production and Engineering