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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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CTC 175-A Part Help Needed
I have an RCA 20" CTC-A, no video, or sound. It has OSD so I figured it is
worth resoldering the tuner. While cleaning the coating of thick dust off the chassis board. The degaussing thermistor fell off the leads. It is listed as RT4201K, how do I look up a replacement one? The only markings on it are 100-01A and A1745, and I'm not getting anywhere with the CTC part number. Thanks, George |
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CTC 175-A Part Help Needed
george just sand off the coating and resolder if it not broken
"George S" wrote in message ... I have an RCA 20" CTC-A, no video, or sound. It has OSD so I figured it is worth resoldering the tuner. While cleaning the coating of thick dust off the chassis board. The degaussing thermistor fell off the leads. It is listed as RT4201K, how do I look up a replacement one? The only markings on it are 100-01A and A1745, and I'm not getting anywhere with the CTC part number. Thanks, George |
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CTC 175-A Part Help Needed
On Thu, 18 Dec 2003 18:16:59 -0500, "Jonesy" wrote:
george just sand off the coating and resolder if it not broken "George S" wrote in message This is degaussing posistor. Yeah they always drop out of that wires when older and solder joint broke from thermal cyclings. Those dull grey discs cracks loudly if solder iron is too hot. I use about 550F, almost barely melts the solder for this job. Use some flux too. Helps lot for good solder joint along with buffing with fine sandpaper prior to soldering. If you do crack it, go to the tv shop and ask for deguassing posistor for a 20" tv with solder leads. They may sell you one for 5 or 10 or so. I like those that is dipped in ceramic coating, more durable. FYI: I saw a new RCA ITC008 chassis, surprised me when TV DEGAUSSED when I turned it off. Now that is overkill, degaussed twice! Oh, liked the new design without painful gemstar and simplified signal routings through ICs, and a small black box for posistor instead of naked disc. Compare that ITC008 to horrid ATC113 on signal routings. :-P Cheers, Wizard |
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CTC 175-A Part Help Needed
Does the ohm reading matter that much on these when cold? Mine only reads
about 6 ohms cold. I saw a universal one in the MCM catalog that was 25ohms cold, and 125 ohms at 20 degrees C. George "Jonesy" wrote in message news:0AqEb.10567$WQ3.9620@lakeread05... george just sand off the coating and resolder if it not broken "George S" wrote in message ... I have an RCA 20" CTC-A, no video, or sound. It has OSD so I figured it is worth resoldering the tuner. While cleaning the coating of thick dust off the chassis board. The degaussing thermistor fell off the leads. It is listed as RT4201K, how do I look up a replacement one? The only markings on it are 100-01A and A1745, and I'm not getting anywhere with the CTC part number. Thanks, George |
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