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Harmon-Kardon 330B

M

mcmason

Jan 1, 1970
0
I have a Harmon-Kardon 330B that I am using for a phono preamp and on
of the preamp channels is dead. Any help on locating schematics and/o
service manuals for this unit would be appreciated.

Regards,

Michae
 
D

David Farber

Jan 1, 1970
0
Subject: Harmon-Kardon 330B
From: mcmason [email protected]
Date: 11/25/2004 11:10 AM Pacific Standard Time
Message-id: <[email protected]>


I have a Harmon-Kardon 330B that I am using for a phono preamp and one
of the preamp channels is dead. Any help on locating schematics and/or
service manuals for this unit would be appreciated.

Regards,

Michael

Need to know the serial number. There are three different schematics. However
each one shows a two transistor amplifier for each channel. I would check the
esr of the capacitors in this circuit and also the dc voltages on the
transistors to make sure they are in their operating range. They are either
2SC458 or 2SC644.
 
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