modessitt
Volunteer: Encyclopedia Submission Moderator
I need the horizontal and vertical yoke measurements, please.
I had a game came in with a bad D9200. The chassis had two big burn spots - one on the main chassis between the yoke connector and flyback, and another on the neckboard that went right through the board. After several different orders from Mouser that didn't fix anything (keep finding new bad parts), my boss decided to go with the quick repair route and just ordered a new replacement chassis from WG.
Got the new chassis in, and nothing. I can hear it turn on, but I get no neck glow and nothing on the screen. I think the B+ is too high and it's in shutdown, but WG has gone home for the day and my own personal working D9200 is in a game at my parents house right now, and I won't be able to get to it until this weekend. I wanted to deliver this game tomorrow.
I noticed the yoke has a dark spot on the top middle, and I want to make sure the yoke isn't bad - and caused a problem with my chassis if it is. Right now, the yoke is measuring:
Horizontal - 1.0 ohms
Vertical - 3.4 ohms
Seems awfully low on at least one of those. Still, I know VGA tubes can have different values than you'd expect on a CGA tube.
Also, even if the video card in the game were bad, wouldn't I still expect to see a "No Video Signal" box on the screen when powered up?
I had a game came in with a bad D9200. The chassis had two big burn spots - one on the main chassis between the yoke connector and flyback, and another on the neckboard that went right through the board. After several different orders from Mouser that didn't fix anything (keep finding new bad parts), my boss decided to go with the quick repair route and just ordered a new replacement chassis from WG.
Got the new chassis in, and nothing. I can hear it turn on, but I get no neck glow and nothing on the screen. I think the B+ is too high and it's in shutdown, but WG has gone home for the day and my own personal working D9200 is in a game at my parents house right now, and I won't be able to get to it until this weekend. I wanted to deliver this game tomorrow.
I noticed the yoke has a dark spot on the top middle, and I want to make sure the yoke isn't bad - and caused a problem with my chassis if it is. Right now, the yoke is measuring:
Horizontal - 1.0 ohms
Vertical - 3.4 ohms
Seems awfully low on at least one of those. Still, I know VGA tubes can have different values than you'd expect on a CGA tube.
Also, even if the video card in the game were bad, wouldn't I still expect to see a "No Video Signal" box on the screen when powered up?