Altec Lansing Supply - Please Help Identify - diyAudio
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Old 4th April 2012, 05:48 PM   #1
eric914 is offline eric914  United States
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Join Date: Jan 2012
Default Altec Lansing Supply - Please Help Identify

I picked up 4 of these about 10 years ago and an using one to supply a L25D amp. The back of the board says 'Altec Lansing' ALS-512 PS. With no load the power supply reads 80-0-80 on the main. It turns on when i momentarily short the two terminals on the lower left hand side but only stays powered up for about a minute. I haven't reverse engineered the circuit yet. Was hoping someone might recognize it and have a diagram.
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Old 5th April 2012, 10:25 PM   #2
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It looks like a typical mains transformer powered supply. The blue component looks like a relay switching the mains input - that's likely to be what's shutting it down. Figure out how the relay is driven, or just bypass it if you need the power supply as-is.
"Audio grade" components simply means that they failed at a more critical job.
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