Quote:
Originally Posted by bigboss80
I took other measurements, I'll have to find something wrong ��, so, on + of C824, according to the diagram, 24 V should be coming, but I find 16.3 V. Then, continuing with D807 in parallel with C820, I find 3.8 V. I tested D807 disassembled and the multimeter is fine. If I read the diagram correctly, D807 and C820 go to pin 9 of the flyback .
The 24 V line that goes to C824 comes from pin 7 of this thing that I don't know what it is, I have to locate it on the board.
https://drive.google.com/file/d/1MI5...w?usp=drivesdk |
That's the vertical output IC. They tend to run very hot, and they tend to dry up capacitors close to them physically on the PCB. If you are getting weird readings around there, you should suspect caps in that area.
However, that usually leads to vertical failure, and not a dim picture (in my experience)
This might mean that you are dealing with multiple issues. There might be bad caps in the vertical, but there might also be something wrong with whatever is that 24V source.
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"as soon as I put the white image and the decoder that uses the charge on the screen, the image is clearer, then once it goes to full screen it becomes gray, I also noticed that the white writing on the colored background is white, even the red overlay menus of the decoder when they are small are much brighter and more vivid, however, putting the menus in full screen turns off the brightness, as if it lacked power to keep the image bright at full screen, yet the voltages are correct"
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Oh, I think this would be very helpful to figure out what is going on. I wish I was as good as the older guys on this forum. Hopefully one of them will chime in to make a suggestion as it sounds very solvable now.