[armourdillo]

Hi all, I am after some help please.

I have a Yamaha DSP AX1.
It suffers from a problem that the channels are intermittant.

I have been told that this is due to a build up inside the relay contacts.
Looking around the internet I have found the service manual and have been reading through the drawings.

The problem relays (RY501,RY502,RY503,RY727 & RY726) all are DH2TU.

After reading I have removed the top lid and can clearly see all 5 relays BUT they are all sealed with plastic caps (I guess to keep dust out)

What I need is a service center or person to strip the unit and clean or replace the 5 relays.

Can anyone help with this?

The amp was brought by me many years ago from Frank Harvey and was sent in for repair while still under the 2 year warentee, but the problem was not fixed. (would not show up on there test rig)

Any help please as I realy dont want to bin this amp.

Thanks again

Alan

[armourdillo]

Anyone

[timberwolf]

I second this also, I get the same problem. Strangly tapping the back of the amp solves the problem for a while. Have opened it up but it really is a maze of wires and connection that simply just take up to much of my time to take apart and fix to the point where its simply not worth it

[morksbeanbag]

Yamaha Music UK Ltd

If you don't want to use a service center then use some short phono leads to join the 'pre out' jacks to the 'main in' jacks. All the relays are, are links between those jacks anyway.

[pprovart]

Hi,

I used a Service Center in Miltoin Keynes once for my old Yamaha DSP-AX1, which i have litterary just upgraded to a Onkyo 806.

Anyhow, ill try and find the service details and post them.
Pete

[rolo151265]

I think that service centre in Milton Keynes you talk about is E&M Electronics 01908 375699, they currently have my faulty yamaha amp.