check the EHT transistor hasent gone open
or short.

"Silver Surfer" wrote in message
news:eJ4_c.112160$Fg5.85519@attbi_s53...
My Zenith Model SG2037W has lost its picture. Sound is fine. Don't see
any
glow from the neck of the picture tube. There is a burn mark on one of
the
wires leading to the circuit board mounted to the neck of the picture
tube.
The burn is evidently because the wire was lying against the high voltage
lead which has a corresponding burn mark. Does anyone have a schematic of
this set they could lend me?