I have one from a pn64e533. I replaced the 3BR2565JF and the two 18n50 (used 22n60 that I had on hand). I now have standby, vs, va, and 15 volt rails. When I reinstall it the relay just clicks. Swapped it out with a good power supply and the tv works. What do I have to do now to repair it?
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post photo of front/back, then the connectors output list and their values -
I have all the voltages until I hook up all connectors then the relay just clicks on and off repeatedly.Attached FilesComment
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i don't see the pinout, can't you make a list of them?Comment
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I did test it on the workbench first. The vs is 220. Tha va is 55. I also have the 15 volt rail.Comment
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220 are much low,,, since u replaced 3BR2565JF i would check all smt parts around itComment
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Maybe, it's 64 inch.
Some information is lacking, what else other than the 3BR and the other two mosfets was checked.
Are all components on the backside near where the 3BR was soldered fine?
No ceramic cap exploded?
Was a power up test without the main board done with the other boards connected?Comment
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It is a Pn64e533, a 64inch. If you connect ANYTHING to the power supply, the relay just clicks at 2 times a second. I don't understand how the voltages can be close to spot on when ps on to gnd and vs on to 5v are wired up. I only replaced thr 3BR2565JF and the two 18n50 mosfets. I removed the two I substituted for them(22n60) with originals. Still had same symptoms.Comment
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Thanks for your advice. You are wrong and confused, but thanks anyway.Comment
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Has anybody figured this problem out?Comment
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Hello,
I have been reading a few threads on here regarding Panasonic plasma tv's. I've found one thread which explains the same problem as mine, unfortunately the thread has not been completed.
I got a free tv (TH-50PX8EA) from a friend which shows no screen. When plugged in only one red light shows up and when pushing the ON button, the red LED turns of and will only turn on again when pressing the ON button again.
When plugging in the TV i hear two relays click fast and after a few seconds the third relay clicks.
I have measured the voltage in the VSUS line, which...06-18-2024, 12:58 PM -
I got this TV a little over a year ago from a coworker from my previous job. It’s a Samsung 46” TV, model number LN46b530p7f.
Problem:
Backlight cycles On and Off.
Basically, when the TV is turned On, there is a relay click heard from the TV PS board. The relay cycles On and Off 4 times in about 2-3 second intervals. Each of those 4 times, the backlights also cycle On and Off with the relay. The screen TFT isn’t cracked/damaged and appears to work - I can see a “no signal” image when the backlights turn On briefly – though the image is a bit dull/dark.... -
Hello
The red and green LEDs both light up and you can hear the relay click. (no picture, no backlight, no sound)
2-3 seconds later the relay will click again and only the red LED will stay on.
I would be very grateful for any advice or a little help.
circuit diagram?
Thanks very much -
Hi, I'm seeing one 9V relay having temperature 40C on its 9V (primary) side. Does that seem right? I switched 2 relays on that board and the temperature was the same (on the same position), so I'm sure it's not a faulty relay. I measured voltage on that relay and it was 9.5V DC, so that looks good. I don't see any other relay on that board having that kind of temperature and they have 9V on them too.
I thought maybe the transistor that is switching this relay keeps switching on/off, so I also checked for AC and there was almost none: 0.3V using mV range. No steady frequency was shown, but... -
Hi everyone!
I have this board that suddenly stopped supplying power to an output that drives an interchanger cleaner motor.
I checked while the board was in place with all wires attached and there's no AC voltage on the corresponding plug X5
This X5 is driven by fuse F8 (tested OK) which comes from the second orange relay
To make sure there are no charcoaled contacts inside the relay, I got a 24VDC power supply and got it ready to manually power up the coil side of these relays.
I respected the polarity, positive to cathode of protecting diode
So provided all...
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