DK Jnr retrace lines on half of screen

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   Hi all
I got a DK Jnr which I got from US, fired it up for the first time, works OK except for the monitor has retrace lines on half of the screen. I am really beginning to dislike CRTs!!

Can this fault be caused by chassis problems or is it going to be that the gun/yoke alignment is somehow out of whack? or something else?

Thanks
Phil

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
PhilT Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Member Joined: 17 Jul 2015 Location: Yorkshire Status: Offline Points: 10377 Feedback: 0	Post Options Post Reply Quote PhilT Report Post Thanks(0) Quote Reply Topic: DK Jnr retrace lines on half of screen Posted: 06 Nov 2019 at 11:46am
	Hi all I got a DK Jnr which I got from US, fired it up for the first time, works OK except for the monitor has retrace lines on half of the screen. I am really beginning to dislike CRTs!! Can this fault be caused by chassis problems or is it going to be that the gun/yoke alignment is somehow out of whack? or something else? Thanks Phil

tb2000 Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 18 Aug 2010 Location: West Country Status: Offline Points: 2287 Feedback: 5	Post Options Post Reply Quote tb2000 Report Post Thanks(0) Quote Reply Posted: 07 Nov 2019 at 12:44pm
	Got a pic of said fault?

Pinge Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 23 Jun 2017 Location: Sweden Status: Offline Points: 201 Feedback: 5	Post Options Post Reply Quote Pinge Report Post Thanks(0) Quote Reply Posted: 08 Nov 2019 at 4:47pm
	I guess a cap-kit will fix your problem. I have had a few Sanyos with different issues, a cap-kit has worked every time. If you have a couple of hours to spare take a look at Johns Arcade doing just that https://youtu.be/GQhY-l8nJvg

PhilT Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Member Joined: 17 Jul 2015 Location: Yorkshire Status: Offline Points: 10377 Feedback: 0	Post Options Post Reply Quote PhilT Report Post Thanks(0) Quote Reply Posted: 09 Nov 2019 at 10:19pm
	This is what it looks like

gunblade Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 25 Jul 2011 Status: Offline Points: 2363 Feedback: 5	Post Options Post Reply Quote gunblade Report Post Thanks(0) Quote Reply Posted: 10 Nov 2019 at 12:30am
	looks like low b+ and bad caps- although the convergence does not look too tasty, possible worry concerning the yoke replace the caps, check b+ is correct

PhilT Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Member Joined: 17 Jul 2015 Location: Yorkshire Status: Offline Points: 10377 Feedback: 0	Post Options Post Reply Quote PhilT Report Post Thanks(0) Quote Reply Posted: 10 Nov 2019 at 7:30pm
	thanks. I will take a look at that.