Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default The RCA CTC 185 chassis...dead!

Has anyone got these 25, & 27" chassis to work, & stay working after
they blow up for the first time? The ones I have seen, keep blowing up,

even after replacing the flyback, diodes in the SMPS, & totally
rebuilding
the SMPS. Got any tips? Thanks, Dani.

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Default The RCA CTC 185 chassis...dead!

Dani, not sure if you or anyone else here is aware of a great repair tip
database called www.repairworld.com it's a pay service but VERY reasonable.
Saved me many times.
And has payed for itself over and again.


"Dani" wrote in message
oups.com...
Has anyone got these 25, & 27" chassis to work, & stay working after
they blow up for the first time? The ones I have seen, keep blowing up,

even after replacing the flyback, diodes in the SMPS, & totally
rebuilding
the SMPS. Got any tips? Thanks, Dani.



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Default The RCA CTC 185 chassis...dead!

Is this one that needs the H drive transformer and the coil in the base
circuit to H out resoldered?
"Randy" wrote in message
...
Dani, not sure if you or anyone else here is aware of a great repair tip
database called www.repairworld.com it's a pay service but VERY

reasonable.
Saved me many times.
And has payed for itself over and again.


"Dani" wrote in message
oups.com...
Has anyone got these 25, & 27" chassis to work, & stay working after
they blow up for the first time? The ones I have seen, keep blowing up,

even after replacing the flyback, diodes in the SMPS, & totally
rebuilding
the SMPS. Got any tips? Thanks, Dani.





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Default The RCA CTC 185 chassis...dead!


Charlie East wrote:
Is this one that needs the H drive transformer and the coil in the base
circuit to H out resoldered?
"Randy" wrote in message
...
Dani, not sure if you or anyone else here is aware of a great repair tip
database called www.repairworld.com it's a pay service but VERY

reasonable.
Saved me many times.
And has payed for itself over and again.


"Dani" wrote in message
oups.com...
Has anyone got these 25, & 27" chassis to work, & stay working after
they blow up for the first time? The ones I have seen, keep blowing up,

even after replacing the flyback, diodes in the SMPS, & totally
rebuilding
the SMPS. Got any tips? Thanks, Dani.




I have the 19" version of the CTC185. Only had one problem with it
since I purchased it new almost seven years ago--the RF port snapped
off the tuner PCB. The tech who repaired the set (in my home)
resoldered the ground points around the tuner as well, which were a
major source of trouble in all RCA (Thomson) televisions with on-board
tuners. After the repair, however, my set has worked flawlessly on
cable the last six years or so (I had the repair done only a couple of
months after purchasing the set).

Why would the large-screen sets (25-27") using the same chassis as my
19" TV have so much more trouble with other things besides the tuner,
such as the flyback and power supply? I have a friend who owns an RCA
TV with a 25" CRT; he has apparently had no problems with it in perhaps
five years, despite the TV having fallen off a table a couple of years
ago and having been moved some 15 miles about a year and a half ago. I
don't know, however, if his TV has the CTC 185 chassis or not. It may
not (probably doesn't), considering his has the Guide Plus+ on-screen
program guide; my CTC185 doesn't have it either.

The Guide Plus+ feature seemed to me at its introduction, and still
seems to me today, to have been a feature included only in high-end
RCA/Thomson TVs; I don't think it lasted all that long, however, as I
haven't seen it in any of RCA's new sets, either its SDTV models or any
of its remaining flat-tube CRT sets and certainly not in recent RCA
high-definition FPs. Was Guide Plus+ just a glitzy flash-in-the-pan
feature RCA included in their sets just as a selling point for a couple
of model years? I would think so, since most digital cable services
such as Time Warner, et al. now include an on-screen program guide and
a flip bar (in their cable boxes; I don't know if this is available
with the company's HD service which connects directly to a HD FP set)
that shows the name and channel number of the station you are watching,
and a listing of channels and programs by time, channel, etc. With a
feature like this already available in the cable box, there is no need
for an on-screen channel guide in the TV itself.


Jeff Strieble, WB8NHV (email addy not shown to deter spammers)
Fairport Harbor, Ohio USA

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Default The RCA CTC 185 chassis...dead!

On 29 Oct 2006 09:18:56 -0800, "Dani" wrote:

Has anyone got these 25, & 27" chassis to work, & stay working after
they blow up for the first time? The ones I have seen, keep blowing up,

even after replacing the flyback, diodes in the SMPS, & totally
rebuilding
the SMPS. Got any tips? Thanks, Dani.


Watch out, some had bad coil. The one with ferrite core in a bobbin,
fitz wire winding. The one with 4 pins upright (snap in). Not sure
if it is NLA already.

Also, check EVERYTHING in the regulator chopper, diodes, caps, coils
before powering up again. I have done several CTC185.

Oh yes, there is few that had glue on the coil for the horizontal
driver circuit.

Cheers, Wizard
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