Scored a CTC-86

[sampson159]

there was a shop aprox 1 block from us.they would wrap every picture tube on every set.offered a 49.00 crt replacement.we got more than half of them in our shop.they were in business about 4 to 5 years before they shut down.some of those had 4 to 5 wraps on the flyback.many good crts were ruined by this practice.

[zeno]

Crazy. We did some wraps & filament resistor jumps but only
the last resort. Best thing is it got the sets out of the
shop instead of abandoned...........

73 Zeno
LFOD !

Originally Posted by sampson159

there was a shop aprox 1 block from us.they would wrap every picture tube on every set.offered a 49.00 crt replacement.we got more than half of them in our shop.they were in business about 4 to 5 years before they shut down.some of those had 4 to 5 wraps on the flyback.many good crts were ruined by this practice.

[Zenith26kc20]

The vertical on the 86 is usually caused by bad 220K resistors on the vertical module. Change all of them. That set can produce an incredible picture when working right. We rarely saw those in here. If we did, it was vertical and tuner.

[TUD1]

Originally Posted by Zenith26kc20

The vertical on the 86 is usually caused by bad 220K resistors on the vertical module. Change all of them. That set can produce an incredible picture when working right. We rarely saw those in here. If we did, it was vertical and tuner.

Thanks for letting me know. I was thinking it was a shorted transistor.

[Zenith26kc20]

Boy do I remember the early cable boxes. More than the Oak had 60 volts on them. I got to the point where I would "scratch" the cable on the F connector to see if a small spark appeared. If not, the customer wondered why the tech would jump when connecting them.
Overall, the 86 and the 40 were just about my favorite solid state RCA TV's. I always liked working on the 86. Also, I never remember changing a tripler in any. Zenith ate the lions share of triplers. Especially the wonderful early selenium ones!

[zeno]

The CTC86 was a rare chassis to see. Always looked
good. Its the last RCA modular set. The 220K resistors
were also a common fail on the newer replacement "unitized"
chassis along with what looks like a vert out transistor
but RCA called it something else. The unitized kept us busy
with FBT's, audio, bridges & vert problems. The '86 seemed
to be very reliable but I thnks they built few of them.

73 Zeno
LFOD !