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using a brightner on it make the CRT produce an OK pic, good enough to continue trouble shooting anyway. There is something odd going on with the tint, does not really seem to phase shift from magenta to green like my oher sets (including my porta color). I have a service manual coming so hope to gain some insights into how to trouble shoot the chroma. The upside is the HV section seems fine, fly runs cooler than most other color sets. Still have to hunt down the hum bar and contrast issue (maybe just the weak crt on contrast). there is no bias adj on the CRT either.
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