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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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RCA Model P46733AT CTC178LA Side Pin Out
No side pin on picture pull light box out found Q4801F Side Pin Chopper
Shorted. It burn the circuit board black. Found a Resistor plus U4001 Side pin IC Bad. Replace all parts power up Q4801 Gets HOT in 5-10 Seconds. Any ideas??? Thanks |
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#2
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You didn't replace the output related pin parts, blue box capacitor and
diode combination. In the 178 chassis those usually destroy the pin output transistor and further back. You will need to replace at a minimum the pin output transistor again. Mr. Lee wrote: No side pin on picture pull light box out found Q4801F Side Pin Chopper Shorted. It burn the circuit board black. Found a Resistor plus U4001 Side pin IC Bad. Replace all parts power up Q4801 Gets HOT in 5-10 Seconds. Any ideas??? Thanks |
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