Yammie psr 740

Posted by: Guardman2001

Yammie psr 740 - 09/07/18 04:32 PM

Hi all. Picked up a distressed psr740 on Ebay. Actually it sounds pretty good but some of the upper keys don't play. Opened it and inspected the contact boards, didn't look worn just a bit dusty. Cleaned the contacts w/ no luck. Thinking I might have to buy the rubber pads. Any one know how to set the volume on the pads to bring them down a bit. Thanx
Posted by: tassiespirit

Re: Yammie psr 740 - 09/09/18 03:41 AM

Originally Posted By Guardman2001
Hi all. Picked up a distressed psr740 on Ebay. Actually it sounds pretty good but some of the upper keys don't play. Opened it and inspected the contact boards, didn't look worn just a bit dusty. Cleaned the contacts w/ no luck. Thinking I might have to buy the rubber pads. Any one know how to set the volume on the pads to bring them down a bit. Thanx

I have the service manual for this if you are interested. Just PM me if you are with your email address and I will send it to you.

Allan taz
Posted by: tassiespirit

Re: Yammie psr 740 - 09/13/18 05:18 AM

Anyway, here it is for anyone else who may be interested; well I tried to upload it but I can't see it myself.
Ok, just worked out, that it's too big to load up, and that is why it is not showing up.
Anyone who wants this file, I am happy to forward to you via email.

Allan taz
Posted by: Gunnar Jonny

Re: Yammie psr 740 - 09/13/18 09:40 AM

Maybe Nigel want to add it to the site?
Guess he will drop in to tell when he see this post.
keys
Posted by: tassiespirit

Re: Yammie psr 740 - 09/14/18 04:26 AM

Originally Posted By Gunnar Jonny
Maybe Nigel want to add it to the site?
Guess he will drop in to tell when he see this post.
keys

Hope so, it is interesting to see the electronic break down of the keyboard, but it is about 10Mb in size and the limit is 5Mbs I think.


Allan