MEGURO MAK-6610 Audio Analyzer

Hello all,

I have recently acquired in as is state a Meguro MAK-6610 Audio Analyzer. The generator woks fine but the measuring part does not work at all, it beahves as if there was no dignal coming through.

I am in need of the service manual or any assiatnce from someone familiar with this unit, so I can try to repair mine. Having an Audio Analyzer would be a great tool to assist in my audio DIY experiments :)

I have tried googling but found nothing.

I'd really appreciate any help :)