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Re: Sony KDL-32NL140: Powers On w/ Backlights, Black Screen - Bad TCON?
i can tell at yours model there are the first generation of Bravia Video processing engin which had allot of such fault of video. the same chips are responsible on Audio signal. try to hear any sound from yours Tv at any input signal !!!!Comment
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Re: Sony KDL-32NL140: Powers On w/ Backlights, Black Screen - Bad TCON?
Bump.Comment
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Re: Sony KDL-32NL140: Powers On w/ Backlights, Black Screen - Bad TCON?
So the two wires marked "unreg 13v" on the power board run into the main board. From there, they are measured at 16.25VDC. This doesn't seem right to me. The two offending pins on the main board measure around 15VDC with everything unplugged on the board except the main power.
I don't know a lot about electricity or components but aren't these 2-3 extra volts bad?Comment
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Re: Sony KDL-32NL140: Powers On w/ Backlights, Black Screen - Bad TCON?
so you did asked and you answered question 15VDC are so much. why don't you go ahead to replace the MB before you are going to damage yours power board.
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Hello everyone,
I've recently been given a Sony 8k Z8H. It's got a white screen with two vertical black bars. At times it's given me the 5 blink Tcon code. Testing voltage on the Tcon I can see some low or missing voltage. I've done a basic visual check of cables and the COF. Not seeing anything obvious. The original Tcon seemed to have good caps until turning it over. On the bottom I found maybe 10 caps with both sides of the caps shorting to ground. I thought ok these caps and likely other components on the Tcon are shorted so let's try a replacement Tcon. I just received the... -
Hi,
i want to repair a Sony KD-75XF9005 TV that initially only showed a grey picture.
Backlight seems to work, Sound (Setup menu after reset) works.
If i dissconnect the left FFC cable from TCON to panel i have half a screen on the right. If left cable is connected always only the grey screen.
Interchanged the cables, its always only the right side that is working. Always grey if left side is connected.
With my small knowledge i would think at least the cables are good.
Can this happen because of a bad tcon board?
Or is it always a bad/shorted... -
This TV was showing a fine image and pulsing with a partial double image (offset vertically) every few seconds. I taped 8 clock pins on one ribbon cable from the Tcon to the panel. It stopped the double image, but some pulsing in intensity was still visible. I then taped another 8 clock pins on the same ribbon cable and the image is now ‘fixed’. Although I understand this results in some loss of resolution, presumably because the clock signal degrades as it passes horizontally across the screen.
I am wondering - do these symptoms and ‘fix’ mean that it’s a Tcon fault or... -
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 ?... -
Hi,
I have this problem with my Sony 55' AG9.
It flashes 4x.
I have found the service manual, and seems it is the TCON.
Before I buy a TCON can someone check the vid?
Thanks in advance!...
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