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CRT (Makvision) image is a large bluish blob. Dead, or repairable?
grantspain:
if you got the right pin on the crt socket then your tube has a gun short
if you desolder the blue gun pin on the crt socket then there is no way you will get blue unless there is a short in the tube
Baldbull:
--- Quote from: grantspain on February 24, 2021, 04:28:41 pm ---if you got the right pin on the crt socket then your tube has a gun short
if you desolder the blue gun pin on the crt socket then there is no way you will get blue unless there is a short in the tube
--- End quote ---
Was afraid of that.. Could that explain the strange green/red that show on the sides after a minute or two?
So it is terminal. Bummer.
jennifer:
No, he is saying it needs a rejuvenation.
Baldbull:
Shouldn't I be able to confirm a short by measuring resistance between the tube pins?
Should I be getting continuity between any two pins? (I am..) I've got a pin I can't seem to identify.. has continuity with the heater, but isn't used by the board. No shorts w/ BK pin? now confused.
Looks like there some quick fixes to try here -> http://www.thegleam.com/ke5fx/crt/sencrt.pdf
jennifer:
A rejuvinator has a setting to clear shorts, as that is actually a common problem...However be warned it is not a guaranteed fix, the better the machine the better your chances and even then may shorten the life of the tube....Personally Jenn would use a Beltron but they are hard to find, and as a second choice wouldn't use anything smaller than the BK 467...*(opinion)