Well, I finally had time to swap some cards around. Found a few interesting things out.<\/p>\n
Of the three CRT amplifier cards in my Ampro, 2 of them are Rev X1, and one of them is Rev B. Guess which was the ‘bad blue’? Yup, Rev B. <\/p>\n
The new cards that Curt sent are both Rev X1 and seem to match my existing cards. <\/p>\n
Along the way I manage to give myself a good zap when my finger slipped off the G2 control onto the pins on the back, effectively shorting the G2 control through my finger. Lesson learned.<\/p>\n
I started by swapping the cards back, the Blue was again sort of funky. So I went ahead and tried the two new cards. <\/p>\n
I didn’t check carefully before swapping things, but I believe my blue had settled down after the original swap I had done several weeks ago. However, now it seems to be unrelated to the CRT amplifier card(s) since I’ve tried three different ones now. <\/p>\n
The ‘sparkly’ effect I had when adjusting the G2 control seems to have worked itself out. I have pretty stable G2 adjustment at this point — except for the blue. <\/p>\n
Blue seems to never completely cut-off, it hits a point where it jumps up in brightness, and as you turn it down, it hits a low point where the tube is always sort of ‘floating’.<\/p>\n
Running regular video material through it seems to give me a more stable ‘black’ — but with all three tubes cut -off, I still have an image that sort of ‘wavers’ on the blue. Almost like there is noise on the line.<\/p>\n
I tried giving all the connections a good ‘jiggle’ to make sure they were solid and I wasn’t having issues with dirty contacts. Still no dice.<\/p>\n
The random ‘blue’ lines are long gone now. This was the big problem as it was showing up in the projected image.<\/p>\n
Of course my convergence is totally screwed (again). Oh yeah, and I posted an ECP vs. Ampro comparison photo in the gallery — check it out.<\/p>\n","protected":false},"excerpt":{"rendered":"
Well, I finally had time to swap some cards around. Found a few interesting things out. Of the three CRT amplifier cards in my Ampro, 2 of them are Rev X1, and one of them is Rev B. Guess which was the ‘bad blue’? Yup, Rev B. The new cards that Curt sent are both … Continue reading “Zapped!”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-ampro-journal"],"_links":{"self":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19"}],"version-history":[{"count":0,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions"}],"wp:attachment":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}