Re: LG 60PA6500 - Pixelated garbage vertical lines only
To close out the story of my TV, it's now been e-cycled. About a week after my last update, one of my friends (former neighbor for years) showed up with a 65" TCL Roku TV because she heard our TV quit. Over the years I've helped her out with car maintenance and repair. She's been a really good friend to my sister-in-law. She just wanted to thank us for being good friends. I wasn't the LG OLED I was going to buy a day later, but as a gift from a dear friend it's hanging on the wall instead of my dead plasma.
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Mr.Stowell
Member
Last Activity: 04-01-2021, 10:35 PM
Joined: 09-13-2020
Location: Vancouver WA
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Thank you for the recommendations Biruslapio. I'll see if I have time to get to the tests this week. My daughter and son-in-law just had their first baby Monday and will be moving into our place next week so my wife can help out. Therefore I have the 'to-do' list before they get here.
I think I've got an old extension cord with the ground broken off that I can create a floating ground with. I'm no electrician or EE, but isn't that the general idea, to remove ground and leave hot+neutral?Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
I am no longer getting the green glow of the panel when I plug in the power. I've got Y-SUS and Z-SUS, and X (power) connected.
Added the power to input board and used the remote to power on, red light flashes twice and no glow. Push power button and the PS clicks off, standby turns red. No hum from Y or Z boards like I used to hear when power was on.Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Thanks for the suggestion.
XSUS and YSUS power cables connected to power supply board and 2-pin VA to X boards disconnected. Still have the power disconnected to input board.
Va: 55.4 - stable
Vs: 204.6 - 205.1
5v: 4.99-5
17v: 17.14
Connect power back to X boards and Va freaks out again.
Decided to disconnect the ribbon cables feeding X boards and plug back in Va power.
Va: 54.5 - 55.5. But at least it's now in a small range.
Additional...Last edited by Mr.Stowell; 10-17-2020, 05:57 PM.Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Newest Update:
I picked up a different logic board that looks physically sound. While waiting for it, I tried the Auto_Gen test on that bad controller with LVDS power and ribbon cable disconnected and was able to get the TV to run the test patterns for about an hour. Watched a bit of Netflix that night and powered off. Next day tried to turn on and back to no picture. Couldn't get Auto_Gen test either. So now the latest board is here and in the TV, but I decided to check all my voltages before hooking up inputs and trying...Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Wow! I didn't notice those were blown. I didn't look that closely before I swapped the board. That picture was taken with the TV working before I hung it back on the wall.
For comparison, I've attached a clear picture of my original control board....Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Update on TV: I did order a used logic board that arrived Monday since it was just over $16. It happened to be a rev 1.0 board and mine was a 1.1 but the part numbers matched so I figured I'd give it a shot. The TV fired up and I had a picture. Awesome! So I finished dusting off the back cover, put it back together, and hung it back up on the wall. Used it for maybe 30 minutes just checking out stuff. Tuesday I suppose my 15-year old worked it out for a couple hours of Netflix and my daughter had an assignment to suffer through...Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Gonna try picking up a logic board and see what happens. Thanks for the feedback.Leave a comment:
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Re: LG 60PA6500 - Pixelated garbage vertical lines only
Yes, the Auto_Gen test was run with the LVDS cable disconnected. The screen is black with the cable disconnected and Auto_Gen not jumpered.
I noticed today when double checking with Auto_Gen jumped the set comes on for about 3-5 seconds and then shuts down. w/out the jumper it stays on with a black screen. I plugged my iPad into HDMI one and get sound and a black screen. Not even getting the vertical garbage anymore.Leave a comment:
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LG 60PA6500 - Pixelated garbage vertical lines only
A couple weeks ago my son comes and says "Dad, the TV shut off". Well I go turn it on, no picture. Fine. He's supposed to be doing schools stuff so I'll get to it eventually. Fast forward a couple weeks. I've checked power supply voltages (all match up with sticker), pulled boards and cables to visually verify no burnt spots or bad solder joints, had a friend come check MosFETs (mostly good but not sure there isn't one weird one on the YSUS board), etc. Can't track it down.
Current state: Putting TV in test mode (jumping pins on controller EXT_AUTO_GEN) will display the... -
Re: New Members - please post your introductions here
A quick introduction: I've always loved all things audio/video. Started out in my youth with the audio bug and it's just grown. Nothing extravagant, just like good quality at a fair price. Still have the 27" RCA TV my wife and I bought in 1989 serving up VHS and DVD!
Been through a 55" Mitsubishi big box of a rear-projection TV that had a Wii remote thrown into it twice! Jumped to a 60" LG Plasma 8 years ago when the Mitsubishi was killed by a power surge. Now the Plasma is dead and I'm making the repair/replace...Leave a comment:
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