hifi engine

Harman Kardon HK675 Amplifier

Hi:
I am facing a problem on my HK 675 amplifier balance control.
There is a very low output on one channel.
I presume the balance control potentiometer needs to be replaced.
Can someone help me with its part number ? Unable to locate it in the manual which I downloaded from this site.
Also any sites where i can procure / buy one ?
thx .



Re: Harman Kardon HK675 Amplifier

Why would you think it's a balance control problem? It could be hundreds of other problems that could cause low output on one channel.

Harman Kardon HK675 Amplifier

Hi John
Thanks for your response.
I had the unit serviced a few days and they ( service technician) claimed they had cleaned up the pot.
The problem has resurfaced since - within a month.
I stay near the sea so oxidation is a likely scenario.
When I turn the knob the left channel crackels a bit and the volume output is low.
All the above factors makes me suspect this component.
I’ve had this system for years and I believe it’s of robust construction and quality components.
Would welcome your views.
Regards

Re: Harman Kardon HK675 Amplifier

I would first clean the protection relay contacts. Your "service technician" should know this. Also check for poor solder connections just about anywhere in the audio chain, then clean all controls and switches if that hasn't been done yet.