{"id":51,"date":"2007-05-21T20:01:10","date_gmt":"2007-05-22T00:01:10","guid":{"rendered":"http:\/\/www.jrtwine.com\/blog\/?p=51"},"modified":"2016-02-02T09:27:02","modified_gmt":"2016-02-02T05:27:02","slug":"punch-out-vertical-foldoveroverdraw","status":"publish","type":"post","link":"https:\/\/jrtwine.com\/blog\/punch-out-vertical-foldoveroverdraw\/","title":{"rendered":"Punch-Out vertical foldover\/overdraw"},"content":{"rendered":"

The Punch-out that I recently obtained has a monitor issue (a monitors<\/em><\/strong> issue, really). Both displays are bring drawn starting ~2″ from the bottom of the monitor, and the upper few inches are being overdrawn on the same horizontal plane. <\/p>\n

In other words, the beam is scanning left\/right correctly but is starting too low and is not going high enough (vertically) to complete drawing the image correctly – the beam stops going up and keeps trying to draw the rest of the screen on the same horizontal line, causing a higher-intensity line to be seen (images below, apologies for their quality – I guess I shoulda taken off the Plexiglas first).<\/p>\n

\"Top<\/a> \"Bottom<\/a><\/p>\n

The overdraw is visible in the image, but it is not obvious from the images that the bottom of the image is ~2″ higher than it should be. The overdraw looks like a classic capacitor problem to me, although I admit that I am not that familiar with the “starting too high” problem and I am guessing that the two are related. At least, the two things being related kinda makes sense in my mind…<\/p>\n

I have cap kits from The Real Bob RobertsTM<\/small><\/sup><\/a> (highly recommended<\/strong> for all kinds of arcade-related parts, BTW!) for the monitors and will be capping<\/strong><\/em> them shortly. <\/p>\n

More to follow…<\/p>\n","protected":false},"excerpt":{"rendered":"

The Punch-out that I recently obtained has a monitor issue (a monitors issue, really). Both displays are bring drawn starting ~2″ from the bottom of the monitor, and the upper few inches are being overdrawn on the same horizontal plane. In other words, the beam is scanning left\/right correctly but is starting too low and […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,17,7],"tags":[20,21,26],"class_list":["post-51","post","type-post","status-publish","format-standard","hentry","category-repair-logs","category-nintendo","category-repair-logs-2","tag-arcade","tag-repair","tag-repair-log"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t