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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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Magavox PTV705 blows HOT instantly
Hi. Magnavox PTV705, blows Q802 HOT instantly. Have checked, good H drive to
base from proc chip, with HOT removed and HV cable detached to avoid crt problems. Anyway, done up with HOT removed and HV isolated, I can fire up for 1 second. During this time I have good base signal to HOT base connector. If I put in new transistor, makes a not pretty noise, then is instantly shorted. Have found no obvious bad parts near the area. Any ideas? Thanks in advance, Danny |