This is a 14 year old Memorex DVD/VCR Combo.
I got a new LG TV. I pulled the Memorex out to hook it up. it only has composite out, so I go composite to a little composite > HDMI device, then HDMI to the TV.
In VCR mode, it works fine. The display quality is what you would expect, but I can play tapes just fine
In DVD mode is where the issue started. In the main DVD screen, prior to it loading any DVD (or with no DVD even in) I am getting diagonal black lines scrolling diagonally across the screen. These continue even if I play a DVD.
So I took it back to my work bench and hooked it up to a little 5 inch display I have there for testing. It is also HDMI input and I use the exact same cables to hook everything up. I opened the device up, reseated the ribbon cables, powered the device on with the cover off, and viola, picture is clear. I put the cover back on, go hook it up the TV, and the lines are back
So I go back to the workbench, take the cover off, power it up, and it is working again. I then pull the plug out, plug it back in, power it on, and now it is getting lines. I pull the plug again, wait 5 min, plug it back in, it works again. Unplug it, plug it back in, still working. Unplug it, plug it back in, lines again. So the lines are intermittant.
On my little test display, I have on occasion gotten a perfect picture. I have also gotten lines. On the TV I have never gotten a perfect picture, always lines.
I took a look at the board that appears to the the DVD player, and it's just a few chips, and a whole bunch of caps. They all looked good to me, except for 2 that looked to have some sort of gunk on them. I didn't know if they blew up, or if it was just some sort of hot glue from the factory. I replaced both, went through my testing routine, and the results were unchanged.
Any ideas on what it could be? If there is a high degree of confidence that recapping the entire board will fix it, I can do that, but thats a lot of time for a little novelty project. I don't think it is anything to do with the main video output since the VCR mode works flawlessly and that uses the same composite output as DVD mode. I would also assume the power supply would not be at fault for the same reason but that is a guess. There is a small black 4 prong chip on the power supply that had some brown on it, but I think it was just gunk from the factory, I scraped it off and it looked normal underneath
Any ideas? I can post photos over the weekend if requested
I got a new LG TV. I pulled the Memorex out to hook it up. it only has composite out, so I go composite to a little composite > HDMI device, then HDMI to the TV.
In VCR mode, it works fine. The display quality is what you would expect, but I can play tapes just fine
In DVD mode is where the issue started. In the main DVD screen, prior to it loading any DVD (or with no DVD even in) I am getting diagonal black lines scrolling diagonally across the screen. These continue even if I play a DVD.
So I took it back to my work bench and hooked it up to a little 5 inch display I have there for testing. It is also HDMI input and I use the exact same cables to hook everything up. I opened the device up, reseated the ribbon cables, powered the device on with the cover off, and viola, picture is clear. I put the cover back on, go hook it up the TV, and the lines are back
So I go back to the workbench, take the cover off, power it up, and it is working again. I then pull the plug out, plug it back in, power it on, and now it is getting lines. I pull the plug again, wait 5 min, plug it back in, it works again. Unplug it, plug it back in, still working. Unplug it, plug it back in, lines again. So the lines are intermittant.
On my little test display, I have on occasion gotten a perfect picture. I have also gotten lines. On the TV I have never gotten a perfect picture, always lines.
I took a look at the board that appears to the the DVD player, and it's just a few chips, and a whole bunch of caps. They all looked good to me, except for 2 that looked to have some sort of gunk on them. I didn't know if they blew up, or if it was just some sort of hot glue from the factory. I replaced both, went through my testing routine, and the results were unchanged.
Any ideas on what it could be? If there is a high degree of confidence that recapping the entire board will fix it, I can do that, but thats a lot of time for a little novelty project. I don't think it is anything to do with the main video output since the VCR mode works flawlessly and that uses the same composite output as DVD mode. I would also assume the power supply would not be at fault for the same reason but that is a guess. There is a small black 4 prong chip on the power supply that had some brown on it, but I think it was just gunk from the factory, I scraped it off and it looked normal underneath
Any ideas? I can post photos over the weekend if requested
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