Sears TV, B+ to high!

[Dani]

Model # 774-15580, "Prima" Model # Q3250. BSC29-N1111 flyback was
arcing, replaced it, then R313 1.0 ohm fusible burnt open, almost
right away, after startup, & found vertical IC
N301 was bad, now the set5 works great, but the B+ while running is
143 volts dc, it's the
usual 90 vdc at standby. Is this normal, for this set? Thanks, Dani.

 

[b]

Model # 774-15580, "Prima" Model # Q3250. BSC29-N1111 flyback was
arcing, replaced it, then R313 1.0 ohm fusible burnt open, almost
right away, after startup, & found vertical IC
N301 was bad, now the set5 works great, but the B+ while running is
143 volts dc, it's the
usual 90 vdc at standby. Is this normal, for this set? Thanks, Dani.

if in doubt i would replace the caps in the power supply, as these can
often lead to excessive b+ if bad. try eserviceinfo.com and look for
the schematic.
-B