Weird problem with Sony KV-20FV12

[Eric H]

I would resolder the CRT socket on the board.
It could be losing some heater voltage even if you can't see them dimming, this was a fairly common problem, it happened to a Sony monitor I had.

[zeno]

The G-2 sounds too high. It will break loose.
May be the pix is still there cause the G-2 is high
& it is actually blacking out but you cant
see it.
If thats the case you may have a weak CRT.
If so there is a trick you can try.

73 Zeno

[old_coot88]

I was reading the wrong scale (senior moment) It's 700V on G2.
Anyhow I reflowed all the pins as suggested, and cleaned the CRT pins, and no go.
It's now in the fault state permanently, the typical look of a very weak CRT.
What had me buffaloed was the slow 'cycling' between the fault state and a nice bright 'brand new' pic. It's gotta be the jug. Still dunno how or why it was doing that.
Oh well, 15 years was a pretty fair life for the set.
Thanks for the feedback.