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Help - K200A-4 [message #29036]

Mon, 19 June 2023 16:36

JDinPA17603
Messages: 69
Registered: May 2018
Location: Lancaster, PA

Member

Currently have A4 on bench.
AC input is 122.8 volts AC
DC main rails are +42.13 and -42.17 volts DC
PC502 positive regulator board output 32.5 volts DC
PC602 negative regulator board output -32.3 volts DC
Schematic for the amp show +/- 23 volts off regulators.
Both regulator boards have been rebuilt - total component replacement.
All parts have been verified for value and installation.
Can anyone do a check on an A series amp with the 502 and 602 boards and check to see what readings they get? This difference between actual and schematics is driving me buggy.
Thanks in advance.
John

Old Us Navy Vietnam Vet
Playing for my own enjoyment and irritation of the neighbors.

[Updated on: Wed, 21 June 2023 13:17]

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[Message index]

		Help - K200A-4 By: JDinPA17603 on Mon, 19 June 2023 16:36
		Re: Help - K200A-4 By: stevem on Sun, 25 June 2023 07:57
		Re: Help - K200A-4 By: JDinPA17603 on Tue, 27 June 2023 18:09

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