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

Subject: Harmon-Kardon 330B
From: mcmason
Date: 11/25/2004 11:10 AM Pacific Standard Time
Message-id:


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


--
mcmason



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.


--
David Farber
David Farber's Service Center
L.A., CA