This is a CRT I sold a few months ago and it's came back with this weird issue. It's intermittent, but not a thermal fault, or tap sensitive - just completely random. The right side of the picture completely blanks out (picture is not shifted). The on screen display is unaffected though, so not a fault in the line section. Anyone seen anything like before in a CRT?
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you have regulator R at the horizontal section to move the Picture left and right, move the picture if it moved left and right only at the displayed screen. then you have crack, if the picture moved to the right black side. then the IC or cap. -
Thanks Diah, I'll check this when I get it back on the bench tomorrow.
When the TV is working normally (most of the time) the width and horizontal potentiometers operate correctly. The TV only goes into this fault mode occasionally and only for a few minutes.Comment
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Your fault is not in the horrz. deflection circuit, that part is working, if it was not, the green menu bar would also be shifted, it is likely with the video signal processing, try a different source and see if that corrects the problem.Comment
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R_J the test of regulator R at the horizontal section i mentioned just to know where will the display move.... this Sony are modern CRT with digital SW for HORZ. menu will pass away as they are step .png photo or sign will display on screen.
in short words its like CRT PC MonitorComment
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Hi, well today I turn it on and the fault is there instantly. I tried width control and horizontal center controls. Both controls do adjust the overall position and width of the entire screen, including the blank area. I left the TV in the fault state for around 15 minutes, then the TV lost line sync completely. The vertical sync is ok. Could my problem lie within the TDA8304, or the TDA3505 possibly?Comment
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Hello, Last week I bought the 50" Sony X80j tv everything was working fine, untill I plugged the tv in a ups power supply 650va the tv remote control became unresponsive and the TV became laggy after a while the picture quality isn't the same as before the tv seems less brighter and the picture is somehow blurry, people's faces don't look as natural as before, there is a mini orange-pink tint to the edge of people's faces especially in NETFLIX Dolby Vision like in One Piece ep1 Alvida skin tone, my intention was to protect the tv but something went wrong I checked the ups with a multimeter,... -
Hello,
could anyone please tell me what is likely to be causing the CRT picture quality issues as shown in the attachments and what it'd take to fix it if that is possible?
The picture has a greenish tinge, colour scan lines are separated and there can be shimmering and the bottom can be missing at first. It has slowly gotten worse over time.
It is worst when first turned on and slowly improves but not resolves over a period of approximately 90 minutes. Warmer room temperatures possibly have a positive influence.... -
5.5 year old 85 inch Sony Bravia X950G started showing gray horizontal lines across the bottom of the screen and the picture shifts slightly vertically when it happens. The lines sometimes get bigger/smaller vertically and bounce back. See the video for the problem. It seems to be happening after it warms up after an hour or so. Happens regardless of source. Right now there's nothing but power cable connected and it's happening. We did hook up a new Nintendo Switch to our HDMI switching receiver today, and played for a while with no issues, but this problem didn't occur til a few hours later while...
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This tv is not even 3 years old. its a sony XBR-75X900H, it was like a flashbang went off suddenly, tv faded to black and no picture. backlight is on. tried to do the power cycle, factory reset. i get beeps from remote if i tap up/down but no picture. how can i determine if its the panel or a board? i have replaced boards before im just not sure what the issue is here. sony said nothing they can do and only suggested to find a local repair shop. please guide me here -
Hey Guys,
So a few months ago my Sony XBR 49x900e TV screen stopped displaying the picture but the backlight comes on and I still get sound when I use the remote and navigate to certain apps. I haven't checked anything with the meter yet but started with ordering some replacement boards. I've tried replacing the BMKS board (used from ebay) and also completed the firmware upgrade based on Nicks TV repairs youtube video. I've also replaced the TCON (twice) and PIB.
All of these changes have resulted in the same issue with no picture. I've also tried disconnecting the ribbons...
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