Hey finally getting around to ordering me an "A" board for my tcp50g20. WOW not cheap! My board is a tnph0834 1a. I am finding lots of boards from different model numbers, say for example a TCP54G25. Mostly refurbished boards, no new ones. Will these work as long as the part number matches?
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Re: Panasonic "A" board replacement
No, you must use the 50", non-3D board. You should be able to use V20 or S20 for example, but not VT20 or GT25, or 54" board.
You also need to use the board with the right inputs - some have 2 HDMI, 3 HDMI, 4 HDMI, built in satellite, or VGA port, etc. That's important.Last edited by tom66; 04-28-2014, 09:21 AM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Panasonic "A" board replacement
http://www.ebay.com/itm/Panasonic-TC...item3cd8ae3fb3
You'd get away with the50g25, IC8502 has different firmware between the 2 but same panel and boards otherwise so probably some extra feature I am guessing.
The GT25 happens to be just a STD FHD but the board is a different number and wider so would not fit in your cradle. That's the model I used as a donor for my SC boards .
Considering what a SC board goes for now, $120 for a main is probably fair game.Last edited by tw2005; 04-28-2014, 10:18 AM.Comment
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Re: Panasonic "A" board replacement
I am finding lots tnph0834 AC and AE boards. Supposed to be for the G20. Any idea on these, or do i need to stick with the 1A board I have?Comment
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Re: Panasonic "A" board replacement
Let me check my parts shelve,it sounds familiar, I might have one. Give me an hour. I will inbox youProud owner of dozens of broken TV's and many,many,many boards.
Our website and passion:http://hollenhundshepherds.com/Comment
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Re: Panasonic "A" board replacement
Darn, I only have a couple G10's,S30's and U50's. thought I had a G20 but guess not
Proud owner of dozens of broken TV's and many,many,many boards.
Our website and passion:http://hollenhundshepherds.com/Comment
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Re: Panasonic "A" board replacement
thanks for looking!Comment
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Re: Panasonic "A" board replacement
Got the A board in yesterday and installed last. Works like a champ! Thanks for the help!Comment
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Re: Panasonic "A" board replacement
hey everyone. me again. Tv worked fine for about four months, now I'm getting a 10 blink code. Wondering if I may have gotten a "weak board", or maybe I have a bad P board. Either way, I'm trying to decide weather to junk it or order a new board. Opinions?Comment
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Re: Panasonic "A" board replacement
Hmm, I have a bad feeling it just blew a SC board. They can trigger SOS4 and 10 blink. Could check SC2 for short but might not be since you have 10 blink.
test q661 and see if shorted as that one seems to fail short .
You could disconnect sc2,ss11, p35 and the 3 white ribbons from the A board.
Turn tv on and see if it stays on, no picture. If so that would pass the PSU and A, SC would be prime suspect then I feel. If still 10 blink, probably A board.
Don't reconnect those power leads after shutdown, leave for 5mins so you do not spike the boards especially P35Comment
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Re: Panasonic "A" board replacement
No, I have a vague recollection that happens , you're not meant to run it that long and I think I made that mistake too when I first started working on mine.
Use the manual to locate the P5V and P15v lines that enter sc20 in the schematic and measure the resistance to a gnd point on the sc. Disconnect SC20 or you'll be measuring the A board side as well.
Did you check q661 as I sugested?Comment
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I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow
This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board
After all of... -
I have a Panasonic TC-P54VT25 that will power on and prime the display but there is no image at all.
The panel is primed as there is a slight glow from the entire panel. This means the problem should be logic related. The service manual also confirms this and recommends replacing the A or the D board.
I have tried to get the TV to display the test sequence but I have been unable to and I don't even know if this TV has a test sequence or not. I tried following tom66's instructions in post #3 on this thread https://www.badcaps.net/forum/showthread.php?t=26790. There was... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
i have a 2020 macbook pro 13" A2251 with 820-09149 logic board so i found an issue with chip labeled U6903 according to schem. boardview using flexBV software, so i removed it from the board and the issue im having is that the chip says "07A08FI ELC180" on top of it but when searching for a replacement chip, i can find tons of identical looking chips that also have "ELC180" printed on them but the first set of digits is never the same so im trying to find out if i need this exact chip with these same numbers as mine and if not which ones are compatible as a replacement?... -
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