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ctc169pg chassis Model P46732BA - HOT shorts when powered off.
I am working on a CTC169 PTV that when you turn off the set, the HOT
shorts. The first time that I noticed this, I found an open C4402. Now, it has happened again, I can't find any defective part. Before, the HOT shorted when I turned the power off on the set, it ran about two or three hours i guess. Has any had this problem with this chassis before? What do you think would cause this to happen? please note: B+ is good at 143Vdc. Originally, I changed all primary supply parts, caps, reg. ic, chopper transistor & HOT. |
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#2
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ctc169pg chassis Model P46732BA - HOT shorts when powered off.
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#3
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ctc169pg chassis Model P46732BA - HOT shorts when powered off.
On Feb 12, 9:53 pm, Ken wrote:
wrote: I am working on a CTC169 PTV that when you turn off the set, the HOT shorts. The first time that I noticed this, I found an open C4402. Now, it has happened again, I can't find any defective part. Before, the HOT shorted when I turned the power off on the set, it ran about two or three hours i guess. Has any had this problem with this chassis before? What do you think would cause this to happen? please note: B+ is good at 143Vdc. Originally, I changed all primary supply parts, caps, reg. ic, chopper transistor & HOT. Is the damper diode good? Checks okay! |
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