Got a lg 42pj350 it has the clicking from the ps. I ordered the repair kit but it still clicking. Sounds like 3 clicks from the relays! I have isolated it to the ps board. Disconnected all other board. What should I look for now.
LG 42pj350 clicking still after repair kit
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Re: LG 42pj350 clicking still after repair kit
There's a Youtube repair on this supply
https://www.youtube.com/watch?v=rv6qvNcDtHUWilling to help but I'm no expert. -
Re: LG 42pj350 clicking still after repair kit
I just did a 50PK550 for this problem. Turned out to be bad solder on T901. I would check that if I were you, and the transformer next to it.Comment
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by SiskoHi all!!
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Channel: Troubleshooting Audio Equipment
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by B0r1sPSU - BN44-00878A
Symptoms:
The TV turned itself off, and I haven't been able to turn it back on. The standby voltage was unstable and lower than it should be.
A weak clicking sound was coming from the transformer.
Video with clicking sound:https://www.youtube.com/watch?v=lAduhjNtqCA
Progress:
After the transformer, I measured four Schottky diodes. DM862C and DM864C diodes readings were 003 in both directions. After detaching them from the circuit and measuring them, DM864C was the shorted one. These Schottky diodes are SB550.I... -
by stormy90Hello!
TL;DR: Replaced blown Q801, Q802 and fuse, but it didn't fix the problem.
I'm trying to repair this TV, since it developed clicking symptom. I disconnected Y-SUS and Z-SUS boards, but PSU was still clicking, so then I was sure problem lies in PSU. When you plug it in, you can hear 2 clicks from relay and then one click when it shuts down. I found two shorted mosfets Q801, Q802 and blown fuse F801. I replaced those elements, but it's still doing the same.
After some research, I found out resistors R108-113 need to be checked and sure one was showing... -
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I opened it looking for some problem, it was not touched before for sure and the board is very clena, no spot of corrosion at all from what I can see. Voltage on multimeter of the board off the case it's the same, 5V 0.42A. But then I noticed this "clicking sound" come from the board ( I attached here the audio file).
Looking on google I found this:... -
Bolstered by the guidance provided in this thread - https://www.badcaps.net/forum/showth...61#post1003961, I ordered a replacement Power Supply Board and read through the 'training' manual linked in the thread in preparation to install the new board (and solve the faulty startup process). I have two questions:
1) My 42PJ350 was produced in Mexico and the ID plate *does not* have the Vs/Va voltages stated below the mains voltage. The line below the 'Power' is 'Manufactured' with no space/line between to provide the configuration voltages. Is there a known fixed voltage... - Loading...
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