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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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Westinghouse TV Problem
Flat screen Westinghouse TV. No model number yet. About 32" model.
Less than 2 years old. Sound OK. Picture for only 5 seconds or so then no picture until turned off and then on again and picture again lasts about 5 seconds. And on and on. Just started this a few days ago. No problems until now. Worth some time to try to fix or just dump and go on? Where to buy a sevice manual if they still sell such things? Thanks Bob AZ |
#2
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Westinghouse TV Problem
Bob AZ wrote:
Flat screen Westinghouse TV. No model number yet. About 32" model. Fla screen *CRT* or LCD/Plasma? Less than 2 years old. Sound OK. Picture for only 5 seconds or so then no picture until turned off and then on again and picture again lasts about 5 seconds. And on and on. Just started this a few days ago. No problems until now. If LCD, have you checked the backlights? Worth some time to try to fix or just dump and go on? Where to buy a sevice manual if they still sell such things? |
#3
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Westinghouse TV Problem
"D Yuniskis" wrote in message ... Bob AZ wrote: Flat screen Westinghouse TV. No model number yet. About 32" model. Fla screen *CRT* or LCD/Plasma? Less than 2 years old. Sound OK. Picture for only 5 seconds or so then no picture until turned off and then on again and picture again lasts about 5 seconds. And on and on. Just started this a few days ago. No problems until now. If LCD, have you checked the backlights? Worth some time to try to fix or just dump and go on? Where to buy a sevice manual if they still sell such things? LCD / plasma, check power supply caps. Failing that, if LCD, try unplugging the backlight inverter. Many TVs will run happily with a (faulty) inverter disconnected, but obviously, you won't actually see a picture, unless you shine a strong light at the screen at an angle. You will, however, normally still hear sound, which proves that the set is staying on ok. Arfa |
#4
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Westinghouse TV Problem
Agree on the faulty power supply caps. I also had a Korea made TV. Remove
the main board and examine cap solder joints for overheating or caps that show discoloration. IIRC the caps are often physically close to transformers. Ca****cher LCD / plasma, check power supply caps. Failing that, if LCD, try unplugging the backlight inverter. Many TVs will run happily with a (faulty) inverter disconnected, but obviously, you won't actually see a picture, unless you shine a strong light at the screen at an angle. You will, however, normally still hear sound, which proves that the set is staying on ok. Arfa |
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