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 Forum index » Instruments and Equipment » Alesis Andromeda
Andy 2 keys not working, also no velocity...please help
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jenamu6



Joined: May 20, 2009
Posts: 15
Location: Rotterdam

PostPosted: Tue Jun 01, 2010 1:25 pm    Post subject: Andy 2 keys not working, also no velocity...please help Reply with quote  Mark this post and the followings unread

Hi guys,

I just bought a second hand andromeda with all voice intact an in tune, but 2 keyboard problems.
-2 keys(next to each other) are not working.
-Velocity doesn't work at all

I tried a hard reset (softbutton 3 turn on), didn't work
I changed velocity paramaters.......didn't work.

So I took out the keyboard and blew some compressed air at the 2 keys.......didn't work.

Do any of you guys know how to fix this?
Or do I have to replace the keyboard itself?

Thanks.
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jenamu6



Joined: May 20, 2009
Posts: 15
Location: Rotterdam

PostPosted: Wed Jun 02, 2010 1:39 am    Post subject: Reply with quote  Mark this post and the followings unread

Ok...next day
Velocity is working after some resets.

the 2 keys are still silent.
I took it apart and cleaned all the rubber contact strips......still not working.

Could it be the diodes on the keyboard pcb?
When I measure the diodes they all seem to give the same value.......do I have to desolder them to be able to measure them properly?

Please anybody?
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sunny pedaal



Joined: Nov 16, 2004
Posts: 727
Location: netherlands
Audio files: 12

PostPosted: Wed Jun 02, 2010 1:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

there are some real good repairtechnicians in the netherlands, just inform on synthforum.nl ( or give me a pb overthere )
the servicemanual is available .
furthermore i cannot give you much help , as i'm not a technician myself
( afcourse it would be nice for all overhere to find the solution to this problem )
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jenamu6



Joined: May 20, 2009
Posts: 15
Location: Rotterdam

PostPosted: Fri Jun 11, 2010 6:26 am    Post subject: Reply with quote  Mark this post and the followings unread

I found out wat was wrong.

Two of the carbon pads beneath the key rubber, are not in contact with the acording pcb traces.

So I bought some conductive glue to try to fix that.

I'll post the results of this operation soon.
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ProFete



Joined: Aug 29, 2012
Posts: 29
Location: France

PostPosted: Wed Dec 13, 2017 6:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

hi

is that worked ?

i have a key no more working on the andromeda

the note is played when sending midi without problem

also i see the key do not send midi

thank
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sunny pedaal



Joined: Nov 16, 2004
Posts: 727
Location: netherlands
Audio files: 12

PostPosted: Fri Jan 26, 2018 3:04 am    Post subject: Reply with quote  Mark this post and the followings unread

instead of glueing i'd prefer letting a technician chance the rubbers . not too expensive and more futureproof then glueing ( b.e. how to remove properly in future when neccesary when glued? )
normal aging thing for keyboards, small service thing...
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