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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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Magnavox/Philips 19PR14-C222 TV sync issue
This old TV works fine in my kitchen. Recently it has failed to "sync" when
initially turned on. Sound is fine. Syncs when warm, after 5 minutes or so. All the solder joints "look" nice. Not responsive to pressure on components or the main board. "Chill Out" didn't find the right component. Can anyone point me to a schematice that might help or give me a better idea exactly which specific component is likely to be going bad/badly connected? Thank you. -- Remove -NOSPAM- to contact me. |
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#2
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Magnavox/Philips 19PR14-C222 TV sync issue
John:
What is the chassis number listed near the model number?? Certain chassis designs were subject to the symptom you described as a result of a dried up or faulty filter electrolytic near the VR... usually 100u @ 200V. Daniel Sofie Electronics Supply & Repair - - - - - - - "John Keiser" wrote in message news:7uadnYVeZNbbppXbnZ2dnUVZ_qKqnZ2d@hawaiiantel. net... This old TV works fine in my kitchen. Recently it has failed to "sync" when initially turned on. Sound is fine. Syncs when warm, after 5 minutes or so. All the solder joints "look" nice. Not responsive to pressure on components or the main board. "Chill Out" didn't find the right component. Can anyone point me to a schematice that might help or give me a better idea exactly which specific component is likely to be going bad/badly connected? Thank you. -- Remove -NOSPAM- to contact me. |
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#3
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Magnavox/Philips 19PR14-C222 TV sync issue
Chassis No. is 19X618-00AA
Is that likley one of the involved models? Thank you. -- Remove -NOSPAM- to contact me. |
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#4
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Magnavox/Philips 19PR14-C222 TV sync issue
I'm sure I can spot a 100u capacitor ...but I'm drawing a blank at the term
"VR".... could you elucidate? -- Remove -NOSPAM- to contact me. |
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#5
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Magnavox/Philips 19PR14-C222 TV sync issue
Dan,
C 432 [100u] was warm to the touch and slightly domed. Swapped with a good one. Back in business. Thank you very much, indeed! -- Remove -NOSPAM- to contact me. |
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#6
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Magnavox/Philips 19PR14-C222 TV sync issue
John...
glad that you got it fixed.... btw: .... VR = voltage regulator \and c432 is the filter cap for the regulated B+. Daniel - - - - - - - "John Keiser" wrote in message news:NbadnX5Qd53ZHZXbnZ2dnUVZ_oGlnZ2d@hawaiiantel. net... Dan, C 432 [100u] was warm to the touch and slightly domed. Swapped with a good one. Back in business. Thank you very much, indeed! -- Remove -NOSPAM- to contact me. |
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