This is the first repair I've attempted on this chassis. The
customer said it "shut off" while they were watching it. The PS whines
when the set is plugged in. I put in a sub HOT (2SD1887, just for diags)
and powered the set with a series light bulb. The PS just pulses and the
waveform on the HOT collector is very distorted. The HOT base components
are properly soldered (no glue).
My Dick Smith flyback checker only hits two on the scale. All the
fly secondary diodes/loads check OK. I'm ready to order up a flyback and
RCA HOT. Anybody see any flaws in my procedures or have any suggestions
before I spend the bucks? I live in SW Washington State and usually
order from Pacific Coast Parts in Portland, but they don't have the fly.
I've heard of Tritronics but never ordered from them. Are their prices
reasonable or should I try somewhere else. I'm open for suggestions. Thanks!

Ray

Flyback, H-output, Check the soldering around the H-drive circuit.
"Ray Carlsen" wrote in message
...
This is the first repair I've attempted on this chassis. The customer
said it "shut off" while they were watching it. The PS whines when the set
is plugged in. I put in a sub HOT (2SD1887, just for diags) and powered
the set with a series light bulb. The PS just pulses and the waveform on
the HOT collector is very distorted. The HOT base components are properly
soldered (no glue).
My Dick Smith flyback checker only hits two on the scale. All the fly
secondary diodes/loads check OK. I'm ready to order up a flyback and RCA
HOT. Anybody see any flaws in my procedures or have any suggestions before
I spend the bucks? I live in SW Washington State and usually order from
Pacific Coast Parts in Portland, but they don't have the fly. I've heard
of Tritronics but never ordered from them. Are their prices reasonable or
should I try somewhere else. I'm open for suggestions. Thanks!

Ray

Didn't the ATC113 chassis line suffer from the same connection problems
to the coil on the base of the HOT like the ctc203?

On 8 Aug 2005 17:04:44 -0700, "
wrote:

Didn't the ATC113 chassis line suffer from the same connection problems
to the coil on the base of the HOT like the ctc203?


YES! Not as common, I occasionally see one. The common failures is
fly either way for 32" and 36" for CTC203/ATC113. In 32" and 36" I
mentioned especially for that two chassis types, if there's no glue on
coil, HOT blown, caps & diodes, solder joints in horizontal
drive/HOT/fly checks out ok, replace fly & HOT.

The glue on coil:

CTC203: L14401
ATC113: LL02

By the way, check that pin amp transistor is mounted on heatsink
properly for CTC203/ATC113. They're commonly found sloppily
installed. 3 out of 5 had this.

Cheers, Wizard