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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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#1
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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. |
#2
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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. |
#3
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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. |
#4
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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 |
#5
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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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