MadMungo Posted November 17, 2018 Share Posted November 17, 2018 Hey guys, Just bought an arcade machine and the monitor/picture has a fault. Don't know how to describe it so took a couple of pics. Adjustment of the various pots on the chassis makes no difference. Chassis is a SANWA PM1718 Just after a bit of advice. Looks as if it has been serviced previously as some of the caps look like they have been replaced. Gut is telling me to send it to joey for a service. Link to comment Share on other sites More sharing options...
0 rod71 Posted November 17, 2018 Share Posted November 17, 2018 Looks like convergence rings are slightly out of whack on the tube to me. Link to comment Share on other sites More sharing options...
0 ozfalcon Posted November 17, 2018 Share Posted November 17, 2018 Google: Partial vertical collapse. Or just: CRT vertical collapse. Link to comment Share on other sites More sharing options...
0 Johns-Arcade Posted November 17, 2018 Share Posted November 17, 2018 Looks like fold over to me, which is a sign of bad capacitors. Send the chassis to Joey for a rebuild. Regards, Johns-Arcade. Link to comment Share on other sites More sharing options...
0 MadMungo Posted November 17, 2018 Author Share Posted November 17, 2018 Looks like convergence rings are slightly out of whack on the tube to me. As far as I can see they haven't been touched as there is a stripe of white paint? that runs in a straight line down the rings and onto the neck, which I assume is there so if the rings moved you can tell. I will contact joey and see what he recommends. Link to comment Share on other sites More sharing options...
0 con Posted November 17, 2018 Share Posted November 17, 2018 convergance will never be perfect on crts i think its okay given the age of it. might wanna try reducing the brightness down abit. send the chassis to jomac for repair Link to comment Share on other sites More sharing options...
0 rod71 Posted November 17, 2018 Share Posted November 17, 2018 As far as I can see they haven't been touched as there is a stripe of white paint? that runs in a straight line down the rings and onto the neck, which I assume is there so if the rings moved you can tell. I will contact joey and see what he recommends. Yeah I just quickly looked at the cross hatch pic. The other guys are on the money :) Link to comment Share on other sites More sharing options...
0 MadMungo Posted December 17, 2018 Author Share Posted December 17, 2018 Just to let you guys know, Sent it to joey for a refurb. Got it and another chassis back a couple of weeks ago and put them both in there respective machines and they are as good as new, all probs fixed. Link to comment Share on other sites More sharing options...
0 Rat Posted December 17, 2018 Share Posted December 17, 2018 Awesome more CRT goodness to live another day :) Link to comment Share on other sites More sharing options...
Question
MadMungo
Hey guys,
Just bought an arcade machine and the monitor/picture has a fault. Don't know how to describe it so took a couple of pics.
Adjustment of the various pots on the chassis makes no difference.
Chassis is a SANWA PM1718
Just after a bit of advice. Looks as if it has been serviced previously as some of the caps look like they have been replaced.
Gut is telling me to send it to joey for a service.
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8 answers to this question
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