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Threshold 4000
Threshold 4000
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Old 8th June 2006, 06:43 AM   #1
R-K Rønningstad is offline R-K Rønningstad  Norway
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Default Threshold 4000

Please find attached some 4000 schematics; PSU, display etc

Rolv-Karsten
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File Type: pdf thresholduniversalpeakdisplay.pdf (32.3 KB, 597 views)
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Old 8th June 2006, 06:45 AM   #2
R-K Rønningstad is offline R-K Rønningstad  Norway
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Another
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Old 8th June 2006, 06:47 AM   #3
R-K Rønningstad is offline R-K Rønningstad  Norway
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Default 4000 psu

Power supply 4000
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File Type: pdf 4000powersupply.pdf (21.6 KB, 387 views)
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Old 8th June 2006, 06:48 AM   #4
R-K Rønningstad is offline R-K Rønningstad  Norway
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Another...
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Old 8th June 2006, 06:49 AM   #5
R-K Rønningstad is offline R-K Rønningstad  Norway
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And the transformer
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Old 8th June 2006, 06:51 AM   #6
R-K Rønningstad is offline R-K Rønningstad  Norway
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And finally the schematics for good measure
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Old 14th June 2006, 10:49 AM   #7
SkyChu is offline SkyChu  Taiwan
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Very Thank you!
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Sky Chu
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Old 1st July 2009, 04:05 PM   #8
Zero Cool is offline Zero Cool  United States
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Quote:
Originally posted by SkyChu
Very Thank you!

YES thank you! I have a 4000 on its way here now! from a secret lab location located somewhere up in the Hills of calif-forn-i-a!!!
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Old 1st July 2009, 08:15 PM   #9
Nelson Pass is offline Nelson Pass  United States
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Threshold 4000
Many thanks for the timely posting - one of my business partners
requested that information to repair an old 4000, and I didn't have
them.

Keep in mind that there are a couple of variations on the front end
circuit, but if you find that yours is different, it is likely the one
where the driver devices are a butt-load of to-92 devices in parallel.

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Old 2nd July 2009, 02:57 PM   #10
Zero Cool is offline Zero Cool  United States
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Quote:
Originally posted by Nelson Pass
Many thanks for the timely posting - one of my business partners
requested that information to repair an old 4000, and I didn't have
them.

Keep in mind that there are a couple of variations on the front end
circuit, but if you find that yours is different, it is likely the one
where the driver devices are a butt-load of to-92 devices in parallel.

Thanks for the heads up. I can't wait for it to arrive and I can dig in!
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