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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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Zenith 35" T.V.!!
M # Z35X21D, rebuilt PWM power supply:
Replaced CX3416 100uf, CX 3413 22uf, CX3424 2200 uf, both regulators, unit works fine in every way, but regulator heatsink get very hot. Touch it for 3-4 seconds...ouch. But the unit runs all day, just afraid it will overheat & "blow" again. Did I miss anything to cause overheating? Horizontal output is cool enough. Rono. |
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#2
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Check the load circuits for those specific regulators, may have something
causing increase current demand. "Rono" wrote in message ... M # Z35X21D, rebuilt PWM power supply: Replaced CX3416 100uf, CX 3413 22uf, CX3424 2200 uf, both regulators, unit works fine in every way, but regulator heatsink get very hot. Touch it for 3-4 seconds...ouch. But the unit runs all day, just afraid it will overheat & "blow" again. Did I miss anything to cause overheating? Horizontal output is cool enough. Rono. |
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#3
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If it's not already home, send it home. They do run very hot. That's why this repair is rather common. David, on the Illinois prairie. |
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