crt

Hi, I've been trying to repair a Sony PVM-14M4E which does not show any image on 50Hz inputs (any input type or port). I works perfectly fine with 60Hz input. I bought a cheap oscilloscope to try and diagnose further but I'm stuck. I see that the UPC1377C stops producing the V-Blank signal...

Hello, I was configuring the vertical position in the geometrics menu just now, when the TV suddenly turned itself off. When I turned it off and on again, the TV shut itself off, shortly after the screen was on and the high pitched noise could be heard. I found a service manual, which states...

Hello, I am the first owner of the monitor. I reached almost every repair store in my area, but no one even wanted to hear about troubleshooting an old CRT monitor. At this point, I have been trying to figure it out by myself, but I have no idea where to start or look for. I wish to know how...

Hi, I've gotten ahold of a 90s Magnavox RD0946 CRT TV that I am using to show a series of video animations for an art project. I have connected the tv to a raspberry Pi via composite so the videos are playing nicely, now the big idea would be to be able to use the remote (and eventually the...

I have two CRT TVs one Panisonic PV-M1323-A and a Sansui TDC2075-A My Panasonic works but has the issue as shown in the videos here and I'm guessing it's something screwy with the vhold but there's no knob or setting to adjust it so I tore it down and took images of the PCB Panasonic...

Hello, I'm brand new here, so please let me know if I'm posting incorrectly or in the wrong section. I need help diagnosing a sudden picture issue with my 1994 Panasonic CT 27SF31S. I've used it almost everyday for watching TV, watching videos, and gaming since I bought it, and I've never had...

How would I fix this. It also when there is not a tape inside shuts the set down.

Anyone know how to disconnect the connector circled in yellow from the PSU without damaging it? I've already discharged the CRT and any large caps on the board before anyone asks lol. It's an Apple Monitor Model M0401 made by Sony. I've got some buldging caps so I'm going to re-cap, it would...

Hi, I have been having this issue for while and can figure it out. Do you think it might be a cap that might be going bad or something else? Just so I am more clear with my headline. I shut my monitor off at night then in the morning I turn it on, but what happens is that when I turn it on it...

Hi everyone - first time newbie here! I've had an interest in electronics since I was a kid, but broke more stuff than I fixed. Now trying to make my interest of practical use... I've acquired a broadcast video monitor, probably 30-35 years old, and I'd like to have a bash at tracing the fault...