Hi guys hope you are all well
Hoping there are some Panasonic specialists about I have the above model
Tx-l55wt50b I have looked for a schematic of the power supply and couldn’t find one even the service manuals only cover everything else but the psu.
Anyway I got the tv and it was making a loud buzzing noise from the back opened it up and found that IC571 / 2A fuse / a couple of zeners on the back had blown
Power supply CT31004 U84PA-E0011754B
Replaced IC571
Replaced fuse with a temp 2A wire
I had zeners in place but probably wrong as when I plugged it in all that happens is the red light flashes 3 times pause 3 times pause and so on.....
Position ZD571 was a G5 zener I think I found an equivalent?
Position ZD572 Empty had a zener there that was short
Position ZD552 Found to be shorted too
Can anyone point me in the right direction of the values/ Equivalent or a manual for the power supply
Thanks in advance
Gary
Hoping there are some Panasonic specialists about I have the above model
Tx-l55wt50b I have looked for a schematic of the power supply and couldn’t find one even the service manuals only cover everything else but the psu.
Anyway I got the tv and it was making a loud buzzing noise from the back opened it up and found that IC571 / 2A fuse / a couple of zeners on the back had blown
Power supply CT31004 U84PA-E0011754B
Replaced IC571
Replaced fuse with a temp 2A wire
I had zeners in place but probably wrong as when I plugged it in all that happens is the red light flashes 3 times pause 3 times pause and so on.....
Position ZD571 was a G5 zener I think I found an equivalent?
Position ZD572 Empty had a zener there that was short
Position ZD552 Found to be shorted too
Can anyone point me in the right direction of the values/ Equivalent or a manual for the power supply
Thanks in advance
Gary
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