Re: 60PA5500 dead as Dillinger - no picture, no sound
Done! Thank you Hamie!
Screen comes in and runs test pattern. Whole screen, red, then blue, then green, then alternating black and white in different patterns. Looks normal to me (though, admittedly, I don't know what "normal" looks like).
I'm assuming this to mean the YSUS and Control board are good? And now likely problem is with main control board and/or zsus?...
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Re: 60PA5500 dead as Dillinger - no picture, no sound
Thanks guys. I'm trying to keep up with the terminology (and failing). I appreciate your patience....Last edited by Cipher108; 07-23-2016, 07:46 AM.
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Re: 60PA5500 dead as Dillinger - no picture, no sound
There are two rows of pins, and a key coming of the power board (picture attached). The pins are in rows of nine (top and bottom). I disconnected the wiring harness to the main board, and measured the voltages supplied. They are (name, then measurement)
1) "17V" measured 17.3V
2) "GND" measured 0V (of course)
3) "5.1V" measured 5.1V
4) "Error Detect" measured 5.1V
5) "GND" measured 0V
6) "GND" measured 0V
7) "Stby"...Last edited by Cipher108; 07-22-2016, 04:52 PM.
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Re: 60PA5500 dead as Dillinger - no picture, no sound
Update, I now have sound but no picture. I tried measuring the input voltage to the main board, but my DMM is made for electrical work and not electronics. I sparked it once by touching two pins simultaneously.
I'm going to take that as it having power...
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Re: 60PA5500 dead as Dillinger - no picture, no sound
Thanks Moreno! When you say "the main board" Is that what I'm calling the "input board"?Last edited by Cipher108; 07-21-2016, 04:15 PM.
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Re: 60PA5500 dead as Dillinger - no picture, no sound
Attached pictures of the input board.
Oh, and about the sound: I did get it to give me some static, but no picture, only once. I think it's stuck on an input with nothing coming in. But I can't change the input to test again because I can't see the screen......
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60PA5500 dead as Dillinger - no picture, no sound
I have an LG 60PA5500-UG with no picture, and no sound (most of the time, I'll explain).
I've removed the back cover, and checked the three fuses in the power supply. I've also visually inspected for blown caps, but don't see any.
In line with other advice here, I've powered the unit down and restarted with only the zsus disconnected, then again with only the ysus disconnected. No change in state fit either.
Before the unit died (I think it's dead) the USB ports failed one by one. I'm down to one working (if I can ever make the tv work again). I'm...
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