Re: LG 60pz950u no display
still working, green lights always worked normal even when there was no picture.
jgrise
Member
Last Activity: 01-07-2017, 01:34 PM
Joined: 12-04-2015
Location: Gainesville Georgia
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Re: LG 60pz950u no display
Replaced the top buffer board and now the black horizontal line at the top of the screen is gone. Still working like new since mainboard reflow.Leave a comment:
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Re: LG 60pz950u no display
Update, Mainboard fault due to poor solder connection. Hamie's idea to try reflow the board in the oven before replacing. Placed board on pizza cooking board [non metallic] and placed in the center of the oven. Set temp to 385 deg f and closed the door. Once temp reached 385 I set timer for 10 min. After 10 min. shut off oven and open the door. Do not remove the board until it cools [10-15 min.] Install and hope for the best. My TV has been running flawless for 2 days. Something I noticed that may help others, prior to the repair the green LED for the...Leave a comment:
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Re: LG 60pz950u no display
First off, thank you very much for your help Hamie. This forum has been a great source of information, your knowledge on plasms is a huge asset to the forum. Just so I understand this, removing the ribbon disconnects the video source and jumping the connections starts a test which confirms the ysus and zsus are able to charge the panel proving no faults in any other board. I uploaded pics of front and back of main board. I did notice a few areas on the back of the board that look suspect. Are there common fault areas on these boards? If I am able to repair...Leave a comment:
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Re: LG 60pz950u no display
Any way to repair the main board or is it trash. Where is the best place to buy one you can trust ?Leave a comment:
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Re: LG 60pz950u no display
Goes through test, all screen color look good. horizontal and vertical test look good. Still noticed the thin black horizontal line about 3-4 inches from the top.Leave a comment:
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Re: LG 60pz950u no display
vy voltage is -180, I will perform the other test and report back.Leave a comment:
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Re: LG 60pz950u no display
Thanks for your help, if you need pics let me know. Do you think the oily stain on the heat sink is a clue ?...Leave a comment:
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Re: LG 60pz950u no display
Reading other posts jepree has a 50pz550 with no display, are tv internals are very similar. The main difference is I do have a glow on my screen, a flickering led on the control panel and a constant led on the main board. I have been checking voltage on the control board that Hamie has jepree checking above the arrow. My voltages are also in the 3 volt range, I also hear a faint humming from the z and y sustain boards.Leave a comment:
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Re: LG 60pz950u no display
My VZB is 110 and my VSC is 150. As per the information label all the voltages are dead that I have tested. All the boards show no signs of discoloration like pics of the same model from other posts. There is an unusual oily appearance to the lower part of the black heat sink on the zsus board, not sure if that is evidence of a problem. I have looked at the solder joints on both the z and y sus boards and noticed the circular cracking on several joints. Is it possible they could be the cause. I had mentioned I am not sure about sound output. Any suggestions...Leave a comment:
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Re: LG 60pz950u no display
I did notice that two of the fuses on the psb have 333 vdc on them. Is this normal ?Leave a comment:
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Re: LG 60pz950u no display
I don't see any test points for vy or ve voltage on z or y sustain boards. Any other ideas would be appreciated.Leave a comment:
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Re: LG 60pz950u no display
thanks for your help. I will look at the zsus board this eve for the voltage check points.Leave a comment:
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Re: LG 60pz950u no display
Which board do I check the voltage on ?Leave a comment:
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LG 60pz950u no display
Hello everybody, this is my first post. Forums like this are in my opinion the best part about the internet. It is much appreciated that experts in this field take time away to offer there expertise. I have been a master automotive tech for 30 years. I am a member of many automotive forums and enjoy helping people very much. Because of my passion to fix things it has made me a very good tech but it is also a curse in some ways" I don't like to throw something away that has broken " which brings me to this plasma tv. The tv is about 4 years old and up the day the display went out it never...Last edited by jgrise; 12-06-2015, 01:07 PM. Reason: Needs to be posted in tv and video troubleshooting -
Re: LG 60PZ950 purple and green color artifacts
I failed to mention that there is a faint blue glow yo the entire screen.Leave a comment:
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Re: LG 60PZ950 purple and green color artifacts
I have the same tv, while fast forwarding the dvr all images on the screen went away including the volume bar, channel or any other info display. I checked all power supply voltages and they are correct. The tv powers up normal and stays on. When the fault occurred there was no warning, no noise, no previous issues of any kind. Any ideas would be appreciated.Leave a comment:
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Re: New Members - please post your introductions here
hello, my name is John. I am a master automotive technician and glad to join the forum.Leave a comment:
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