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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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Philips TV
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Philips TV
"Gary Collins" wrote in message ... 15-20 year old TV (mod 2699-04) gave out with smoke from component resister R403 (small disk raised off the board). Does anyone know the specs for this resister? It maay be that something elso caused this resister to overhaeat, if anyone has a suggestion I would love to hear from you. thanks Gary Do you know what chassis it is? |
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Philips TV
Barney wrote: "Gary Collins" wrote in message ... 15-20 year old TV (mod 2699-04) gave out with smoke from component resister R403 (small disk raised off the board). Does anyone know the specs for this resister? It maay be that something elso caused this resister to overhaeat, if anyone has a suggestion I would love to hear from you. thanks Gary Do you know what chassis it is? thanks for responding. The chassis # is 26C9-04 and the model is PNH613 CH01 (built in 1987). The V across the resister is 115 and only drops to 85V with an R = ~100s ohms across it which draws a high current. I don't have a schematic to track down what's going on. |
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Philips TV
wrote in message oups.com... Barney wrote: "Gary Collins" wrote in message ... 15-20 year old TV (mod 2699-04) gave out with smoke from component resister R403 (small disk raised off the board). Does anyone know the specs for this resister? It maay be that something elso caused this resister to overhaeat, if anyone has a suggestion I would love to hear from you. thanks Gary Do you know what chassis it is? thanks for responding. The chassis # is 26C9-04 and the model is PNH613 CH01 (built in 1987). The V across the resister is 115 and only drops to 85V with an R = ~100s ohms across it which draws a high current. I don't have a schematic to track down what's going on. I'm sorry but I don't recognise the chassis (doesn't sound as if that is a chassis type). What are the symptons that you have with the set? |
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Philips TV
It is a special surge limiting resistor/thermistor.
nap part # 483511637005 They would commonly fail with no other problems. If you have a variac, simply jumper the R403 and start the tv ac line off at 60VAC and bring it up slowly to 120VAC to see if there are any other problems. Then try and turn the tv on and make sure there are no other problems. |
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Philips TV
Thank you, I jumpered R403, used a variac and everything worked fine.
I will now look for a replacement part so that it will be safe. Thanks again to all who replied. - Gary Collins |
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