Halli SX 100 Problem found, Need help with cause
On Nov 12, 5:11*pm, tchrme wrote:
Partial success on this stubborn problem and it would have to be my
favorite rcvr too. I traced the thunderstorm crashing sounds down to
the 2nd converter subchassis. After I pulled it again, I replaced all
the caps and the resistors since it is such a pain to access. I
powered it up on test leads to the main chassis and still heard the
frying thunderstorms. A 22k resistor that I replaced was starting to
overheat and turned brown. I checked the one I took out and it too was
burned looking. So.... I need help on what would cause the overheated
resistor (R24). I can email a schematic to anyone who can help me out
on this. I double checked all wiring and parts were replaced one at a
time. Help. *Thanks ahead of time. 73 Mike KF6KXG
Based on you other posts, I don't think you found the source of the
problem, only another symptom. If the noise stopped when you pulled
the tube/tubes, Did you try pulling them to stop the resistor
overheating? Replace the tube/tubes with a different set, one at
time. Watch the resistor for overheating, again.
If you have indeed replaced all other components, the one you have not
commented on are the tubes. Sounds like a grid to plate short
somewhere.
I have no familiarity with that receiver.
Paul, KD7HB
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