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Hi Adele

Scott is right: removing the board is the best option, and should not be that difficult. Apply the same advises than when you opened the case. I would be surprised (not to say disappointed) to see connectors solded directly on the boards. However, I recently found this in a Yamaha RX11.
Once again, never opened this board.
One more advice: take your time to do things properly (cleaning or whatever). Nothing is more frustrating than having to reopen because of an incomplete repair.

François

(Adèle comes from the German "Adal", meaning "noble". Born in France, moved to Canada at 33, like Adèle Hugo, the daughter of Victor Hugo. François Truffaut movie's "L'histoire d'Adèle H" is based on this story. And just to mix up things a bit further, my daughter's tallest brother is named ... Hugo)

To: vintagesynthrepair@yahoogroups.com
From: amh78833@...
Date: Sun, 17 Aug 2008 22:53:43 -0400
Subject: Re: [vintagesynthrepair] Roland EM2000 arranger

Hi Francois and anyone else who may know,

Thanks for all the info so far. I have finally had time to take the Roland apart. I was hoping that just blowing it out might make my couple of keys start working! LOL.......

but NO........... So I removed the keyboard and looked it over. There is an electronic board screwed to the underside and nothing to really see. It appears I have two choices at this point.... to disconnect the electronic board under the keys or try to remove just the keys that are not working. I see that there is a spring behind each key and it appears that if I remove the spring, it should be able to move slightly forward and disengage from a "catch" of sorts that is towards the front of the key which holds it down and in place...........

What say you?...........On one hand, removing the entire under board will give me a look-see at all the contacts (I think)...however, is there a trick to this?....does anyone know?

The other question would be if I DID decide to remove just a key at a time, any suggestions for removing the springs? Looks like each spring is situated in a guide that locks it in...... My approach would be to put a narrow row through it and "pop" it out?.........sound right?

Thanks all

Adele (and a VERY pretty name your daughter has, Francois!! LOL....You are French I am assuming?....... In an effort to find where that name actually comes from, I've asked all of the Adele's I've met in my life what their heritage is........probably only 7 or 8.......non of which have heritage from the same place.........but this would make two that would be French.... I am half Italian and part German and a few other things....... so really don't know where though I was occasionally called Adelina by my Italian family..)

;

----- Original Message -----

From: francois

To: vintagesynthrepair@yahoogroups.com

Sent: Saturday, August 09, 2008 1:00 PM

Subject: RE: [vintagesynthrepair] Roland EM2000 arranger

Hi Adele,
;
if no pattern can be found on dead keys, it really sounds like more an oxydation issue than a connector/bus trouble. Was your keyboard stored in a moistured place? I've never opened this keyboard, so my advice might be not fully applicable.
- use a large workspace away from kids and pets and be prepared to use it for a couple of days.
- get a bunch of small plastic contents to store the screws while opening the case. Don't mix screws.
- if you don't have the right screwdriver, buy a good one. A cheap or wrong screwdriver will ruin your screws.
- if you have a digital camera, taking step-by-step pictures. Useful when reclosing the case.
- Once all screws removed, take care when you open the case: there might be a ground wire (green).
- it's better to remove the keyboard from the case. However, it could means removing a couple of other boards. Your judgement will guide you.
- take pictures of connectors position before removing them. Some could be rather tough to remove; your fingertips could be painfull after then. Don't use excessive force nor unadapted tools (pliers).
- avoid touching ICs; some are fragile enough to be harmed by ESD (electrostatic discharge). Being grounded is also a good idea.
- contacts could be de-oxyded with a QTip and a dedicated product such as Caig Deoxit. When really oxyded, I sometimes scrub with toothpaste/toothbrush and thoroughly clean the residue.
- reclosing the case is straightforward.

Hope this helps

François
(my daughter is named Adele as well; sweet name :-)

To: vintagesynthrepair@yahoogroups.com
From: amh78833@comcast.net
Date: Sat, 9 Aug 2008 14:47:27 +0000
Subject: [vintagesynthrepair] Roland EM2000 arranger

Hope it is ok to ask for help here.

My keyboard had been sitting a while and a couple of keys weren't
working. I was able to get them going by striking the keys a number
of times and all was well.

The keyboard was sitting for a while longer and a couple different
keys stopped working, not the same keys. Unfortunately, I cannot get
the keys to work by that same method.

I would like to open it and see what is going on...dust, oxidation,
rust, wear.....

I did check all the keys now and have found no pattern so I believe it
is not an electronic issue. Here is what is not working:
Octave 1 F# and A; Octave 2 C# and E; Octave 4 B; Octave 5 Eb

I haven't been able to find a service manual and there are MANY screws
on the bottom to open this. Any tricks or warnings? I have done
computer/electronic repair before so not too worried.....On the other
hand, I don't want to destroy anything else.

Second question is if it is just the contacts, any economical
suggestions besides replacing them?

Thanks very much........

Adele
in CT
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Vintage Synth Repair

RE: [vintagesynthrepair] Roland EM2000 arranger

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