Re: Insignia No AV, Demonic sound coming from panel possibly
I fully disassembled the TV and found the edge of the front glass. The noise appears to be originating from the Plasma panel it's self, not from any of the individual components.
k0nsol
Member
Last Activity: 02-23-2019, 11:39 PM
Joined: 09-15-2012
Location: Kingwood
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Re: Insignia No AV, Demonic sound coming from panel possibly
Lost cause?Leave a comment:
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Re: Insignia No AV, Demonic sound coming from panel possibly
It sounds like it's coming from the panel it's self. both speakers are completely disconnected.Leave a comment:
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Re: Insignia No AV, Demonic sound coming from panel possibly
Any thoughts? I'm thinking since the input/main board's data line isn't connected, and I'm having the same symptoms, that the control board is the culpritLeave a comment:
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Re: Insignia No AV, Demonic sound coming from panel possibly
If by main bd, you mean the input board, I have one pin labeled "STBY", which does have 5v at the "off" state.Leave a comment:
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Re: Insignia No AV, Demonic sound coming from panel possibly
Also, to answer TVTimmy, The screen doesn't display anything or power on. No image or backlight.Leave a comment:
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Re: Insignia No AV, Demonic sound coming from panel possibly
Hi All,
The model is a NS-P502Q-10A. I've attached pictures of the TV as well.
Shorting pin 3/4 did not display a picture. One interesting thing I found was that with the power (and control/data cable) disconnected, the TV did not make any noise. When connecting only the power cable from the PSU to the input board, the TV powered up/on and continued making the noise. Additionally, the input board needs to be connected to power, and power only for the IR to work.
The IR works normally....Leave a comment:
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Insignia No AV, Demonic sound coming from panel possibly
Hi All!
I've recently been trying to get into TV repair (mainly for the fun of it/side hobby), and to better my lack of component level repairs. I work IT and am contently given broken electronics, usually which I try to fix for fun. In the past, I've thrown parts at the TV based until It works. Usually I'd sell it at a major loss after that, as a man can only have so many TVs.
I saved a Insignia NS-p502Q-10A from the curb earlier this week, and think I've diagnosed it down to a short to ground on the input board. I checked all the outputs on the power supply, and... -
Re: Sony XBR49X800D ghosting on bottom of screen
What do you mean by this? Google didn't shed any light on an "FFC". By this do you mean the cables that go from the LCD panel it's self to the buffer board?...Leave a comment:
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Re: Sony XBR49X800D ghosting on bottom of screen
The TCON was replaced, but it didn't change anything
. I'm thinking it's probably the panel as suggested....
Leave a comment:
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Re: Sony XBR49X800D ghosting on bottom of screen
I re-tested. Definitely no picture.Leave a comment:
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Sony XBR49X800D ghosting on bottom of screen
Good afternoon!
I have a Sony XBR49X800D that is ghosting on the bottom half of the screen. The top half is perfectly fine.
I've replaced the TCON, and all three cables (one from the main board to the TCON, and both ribbon cables from the TCON to the LCD Panel), but the issue still remains.
If I remove one of the ribbon cables, half the screen (left or right) goes white, but the bottom half still has issues.
Would this be a panel or main board issue?... -
Re: High-low whine Toshiba 37cv510
No sir,
I'm actually pretty new to working on LCDs. I did find one thing, The whine stops all together when I disconnect the main board from the power supply. I have a multimeter and I can measure voltage with it. Is there a FAQ or sticky to point where I should look to check?Leave a comment:
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Re: High-low whine Toshiba 37cv510
Should I replace the main board?Leave a comment:
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Re: High-low whine Toshiba 37cv510
Do you think this sounds like a cap issue?Leave a comment:
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Re: High-low whine Toshiba 37cv510
Its a possibility. I replaced a bunch of the smaller ones, I didn't have any 35v 150uf so I replaced it with a 35v 220uf. I still have 3 35v 1000uf I couldn't find. Radioshack has them, but I know I'm supposed to stay away from them. I still can't get any response from it.Leave a comment:
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Re: High-low whine Toshiba 37cv510
plugged in and not turned on.Leave a comment:
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High-low whine Toshiba 37cv510
I couldn't find a single thing on this TV online. I can't get it to power on.
I pulled the back cover off and and can hear a fluctuating high- low whine coming from the highlighted area. None of the caps look bad ( i know looks can be deceiving)
I picked up this beauty for a whopping $20. I wanted to consult the experts before I replaced all the caps on the board. I'm still new at working with caps, I plan on ordering an ESR meter sometime soon.
thank you!...
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Re: Samsung 216bw blues
So I swapped everything around. The monitor with the back light issue now has vertices lines, but no backlight issue. I'm guessing that if should try and find two TCON boards.
attached is the boards...Leave a comment:
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Samsung 216bw blues
So,
I have three Samsung 216bw monitors. Two of which have slight issues.
Monitor #1:
There is a glow from the center of the screen. Fresh caps. If I pull up an all black picture i can visable see the center of my screen white (as if a flashlight is being pointed at it. it starts from the bottom and goes about 3/4 up the screen.
Monitor #2:
Verticle lines... Verticle lines everywhere. Transparent, but seem to be in columns. I read about replacing a fuse/jumping it some where but I'm pretty new to LCD repair.
([url]http://www.avsforum.com/t/1127410/thin-vertical-lines-cover-screen-on-samsung-lcd[/url])...
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