Quote:
Originally Posted by pac.attack76
So I'm testing sc448 with the same setting? Does output need to be installed during test?
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Yes on the same DMM setting (200 ohm scale), no on does it need to be installed, but it doesn't matter either way. You've confirmed the horiz output is not shorted, so on a resistance test of the diode, it will read "open" as if it's not even there.
The damper should also read open on your meter for resistance the way the horiz output did if it's good, or at least 100K ohms in circuit which is essentially open for this discussion.
If the diode reads short (I think you had something like an 8 ohm short to ground), then unsolder one end of the diode or remove it completely and test again. If it's reading that same 8 ohms out of circuit, then the diode is shorted and you need to replace it. If the diode reads open, something else is shorting the B+ to ground. Reinstall the diode and horiz out and we'll go further (retrace cap would be next).
John
06-29-2023, 08:48 AM
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