Re: Sony KDL-70W850B T-CON problem
I did install and did same thing with original board
I did install and did same thing with original board
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Re: Sony KDL-70W850B T-CON problem
Attached FilesComment
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Re: Sony KDL-70W850B T-CON problem
how many days / weeks your TV worked after you replace the mainboards ???Comment
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Re: Sony KDL-70W850B T-CON problem
Maybe check for bad solder joints on that connector there.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
Try unplug tv from power, unhook cable from powerboard to mainboard, leave unhooked, plug power cord back into powerboard, do backlights come on or do you get test patterns or anything?Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
Tv worked like a week before changin the main..but the tv ws doing a no normal working turn on on the first try and working fine once is turn off and wanted to turn back on it wont work just green and orange ligth...so now i change the main i got it to work, but now no backligth i can see the image with flash ligth.Comment
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Re: Sony KDL-70W850B T-CON problem
.Last edited by nomoresonys; 01-28-2021, 05:36 PM.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
And check the voltage between the legs of your main filter caps, be careful HIGH VOLTAGE.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
Not sure I follow, so the new mainboard never worked? If so you may have bought a bad one, see if your getting the bl-on and ps-on signals.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
Yes its working i tougth it wasnt working i find out when i did the update thats when i realize it was good....Comment
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Re: Sony KDL-70W850B T-CON problem
On the fuse on the inverter is good both ways i get 41.5v..i dont know it thats to high or to low.Comment
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Re: Sony KDL-70W850B T-CON problem
The tv off the big cap 167.5v....tv on 391.5v....Last edited by hmendez86; 01-28-2021, 09:44 PM.Comment
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Re: Sony KDL-70W850B T-CON problem
ok... try now ( wake up mainboards action to the backlight section ) :
with flash light control yours sony... open the menu setting and bring the backlight setting down to 1/3 ( if the high level 100 set it to 30 , if the high 50 set it to 20 ) then exit the menu plug the TV out from wall socket ( dont turn off with remote )....... leave it around 30 minutes off then plug it back to wall socket.Comment
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Re: Sony KDL-70W850B T-CON problem
So you could not update the original mainboard, just like you did with the new one?Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
This is the new main boardComment
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Re: Sony KDL-70W850B T-CON problem
Could update the original it shuts off about 10 after being turn on and then gives me green orange ligth and stays like that..Comment
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Re: Sony KDL-70W850B T-CON problem
Ok, did you try Diah's suggestion in post #34? I think it was to see if tv stayed on longer. You can try this reset: With tv on, hold down the up button on remote, press power on tv button board, tv should turn off then back on, when it turns back on release the buttons, see if tv works any different, try it with the new board, then maybe the old one too.Last edited by nomoresonys; 01-29-2021, 10:53 AM.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Re: Sony KDL-70W850B T-CON problem
Might need to do some testing on the led driver board but orange and green is usually a software issue as in needing an update/pairing.Last edited by nomoresonys; 01-29-2021, 11:02 AM.Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.Comment
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Hello again everyone,
This is my latest mission, to try getting this Sony tv back to normal working order…
I've only just got it today, when you power it up everything is as should be, in fact it works perfectly for a few minutes then the screen starts getting horizontal lines on & eventually the full screen goes back, I will upload photos of the problem & also some photos of the board etc. You might notice that I'm busy trying the tape method, I'm not sure exactly where the clock lines are so I'm just guessing & hoping for the best lol . I've already tried... -
The TV shows a black screen with no image.
TCON ribbon connectors were disconnected individually for image and there was no half image even.
Later both ribbons were disconnected and TCON voltages were tested.
12V, 3.3V, 1.8V were seen present but VONE signal reads 0V.
There is also a short to ground in this circled inductor.
Is this a TCON issue or something else ?... -
I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.
I have tried a Cold Reset as per the service manual.
I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.
I have looked all the way through the service manual and tried many online... -
Hello gurus, hope you can assist me...
I have a Sony KDL.40P3600, with an issue on the left side of the screen (pictures attached).
I think the problem is the panel, but before send it to trash, i would like to get a second opinion.
Thanks in advance. -
Hello
I this Sony mbx-266 it powers
on all the voltages are normal the strange part iOS the caps key num key works which shows the machine has booted but no video at all internal dp and the ext vga or hdmi.I have changed the bios but same issue. What do I check ??
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