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Taking voltage measurements for troubleshooting
Taking voltage measurements for troubleshooting
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Old 12th November 2019, 11:17 PM   #41
sci85 is offline sci85  United States
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Hmm, this looks like it might just be a tough save regardless. Finding a suitable STK-1060 replacement might not be doable. I'll do some digging but my initial search did not turn up any exact replacements that seem reputable.

Also, I went back and reread the thread and noticed I left out a couple of tests.

Quote:
No, just measure ohm over C513. If it has failed (shorted), you get the same problems. But..
C513 measured 0 ohms. I checked C613 and it shows OL. You were right on that one too.

I'll poke around a little more but it looks like this one might just be a goner. Oh well, I 'll keep it around for parts I suppose.

Appreciate all the help guys. I learned a ton~
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Old 13th November 2019, 08:37 AM   #42
MarsBravo is offline MarsBravo  Netherlands
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Let me know what replacements you spot. I'll (try) to crosscheck them.
Dispose of shorted caps: these are no caps.
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Old 13th November 2019, 09:52 PM   #43
sci85 is offline sci85  United States
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Well I've been searching high and low and the only one I can find is
2SB716 --> KSA992 for Q507. It's the closest I can find. The only diff as mentioned is the collector dissipation rating of 500mW vs 750mW on the original. All the other ones I can find have even lower collector dissipation figures. Not even sure what this measurement tells me.

Anyway, that's the closest I can get other than finding some NOS stuff or questionable Chinese clones...Bummer.
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Old 13th November 2019, 10:38 PM   #44
MarsBravo is offline MarsBravo  Netherlands
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I've to hunt for both dataheets (oh my outdated library), so pm me and I'll do the P-calculus.
Now, I'm listening Dvorak's New World on radio, so first things first!
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