Harman Kardon locked in Tape1/Copy and Tape2 mode

samcan

Member

Join Date: Aug 2012

Posts: 20

Country: U.S.A.
#1

Harman Kardon locked in Tape1/Copy and Tape2 mode

08-24-2012, 06:48 PM

My Harman Kardon 3400 decided to lock into:
"Tape1/Copy" and "Tape2" mode.
I hadn't started to trouble shoot, when I found this site and could use some direction.

First I am trying to get the photos taken and attached properly.

Any assistance would be greatly appreciated.
Attached Files

Last edited by samcan; 08-24-2012, 06:52 PM.
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samcan

Member

Join Date: Aug 2012

Posts: 20

Country: U.S.A.
#2

08-25-2012, 04:36 AM

Re: Harman Kardon locked in Tape1/Copy and Tape2 mode

Could it be Q809 holding both Q801 and Q802 on?

Or is IC 802 bad?

With all the "logic" going on I do not know how to isolate, should I just start to replace until see progress?
Attached Files

Harman Kardon Schematic.pdf (1.43 MB, 10 views)

Last edited by samcan; 08-25-2012, 04:45 AM.
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Harman Kardon locked in Tape1/Copy and Tape2 mode

Harman Kardon locked in Tape1/Copy and Tape2 mode

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