Bumping to see if anyone has any suggestions what I should look into. Going to make a parts order in a day or two and want to be prepared for all possibilities. Thanks!!
Hello all. In my quest to learn to diagnose with symptoms or at least have an idea what area might be the culprit I have a new one I would like to present to the board.
I have been charged with working on my sister's 13" cocktail wg k4800. This monitor has seen some major hours of use over the...
After getting a new chassis from TNT I think I might have found a culprit. The new chassis as well as a backup one that I have wouldn't hold sync either. Found this in pinwiki:
No Video or Bad Video.
Even though a Vidiot board gets 10 flashes on the diagnostic LED, it can still have problems...
I MAY have found the culprit. While the kit called for a 330uf cap i noted that the monitor had a 2.2uf cap in c301 before the kit. I'm thinking that could well be the issue.
https://forums.arcade-museum.com/threads/sanity-check-k4800-c303.510691/post-4554340
Still won't hold synch after swapping ic301 and q301 and a cap kit and reflow for c315. Confirmed synch is going to only pin 3 on the synch header. Running out of ideas. Any clues?
And to clarify. The picture is 'synched' but rolls vertically.