wk 8 volatile sample ram

Hi
Does anybody know where to install the SIMMs for the volatile sample ram in the wk8.
Because, I opened it and I couldn't find the place on the board .I would appreciate your help.
Thank you

Hi

If your looking to increase the volatile ram from the standard 8mb you need to open the keyboard. remove the hard disk and directly underneath you will see 2 x sets of simms chips 30 pin going horizontal. These can be removed and replaced with up to 32mb if you can get hold of them as they are less common (72pin seems to be all thats available).

The keyboard will recognise the chips when installed.

Of course, if you install those, you will not be able to install the vocal harmonizer. For me, the 8megs of battery backed-dram is a must upgrade. It must not be optional.

Th volatile sample ram and battery backed are two different things. This will not effect your vocaliser.

Darren

Hold on. the 8 megs battery backed ram is different from all of these things...

The point is that the volatile memory banks are the SAME banks in which you add special chips for the vocalizer. So basicallly, if you add one, you cannot have the other.

How do I know? I installed the vocalizer myself.

But wk8 already has the vocalizer installed from factory... that explains why the user could not find the slots for the volatile memory... THis is so because they are already occupied by the two chips (vocalizer chips that come with the board.)

thank you guys for your help
The only place I found was the place where the company installed the 8 MG sample ram underneath the hard drive. Then I replaced the 8 Mg with my new 32 Mg(2 SIMMs 16 mg ) and when I turned it on I was big squeaky pitch sound , but the samples were still there and the sound was distorted . Do you think that the SIMMs I brought is damaged, or the place is not the right place?

That does not make sense at all. The 8meg backed memory is not simms but a CARD. So the place for a medium sized card absolutely cannot be for the simms. As I remember it, under the 8 megs, and under the harddrive, there is place for two simms. Since WK8 has already a vocalizer, i would assume that these simms holders are occupied with speciality chips... I can be wrong of course.

You need to alter the jumper pins

These aresituated to the left of the simms and should have on the board J1 and J2 the pin configuration looks like this
a .
b . J1
c .

a .
b . J2
c .

There should be a small plastic cap that slots over theses on each jumper selecter. You must ensure that they are different to those its on at the moment.

the jumper on J1 will either be placed over a pin and b this needs to be changed around so its over b and c . This is the same for J2. Make sure they are the opposite to what they are now.

If you still get the squeak it may be a dry solder joint on the under side of the board for the simms slots.

E mail me if you have any problems and i will send a service diagram. I am very knowledgable on this range as i worked in the Uk as sales manager for 8 years for generalmusic

Darren

Cool, a GeneralMusic aficionado! So do you have a Genesys yet?

mike

No genysis yet i really would prefer a 76 note version but it dosent look like there will be one so i may have to settle for a 61 note no speakers jobby. Here in the UK they wont be about till end of april so knowing Italy that will be october november. Ive heard it sounds very good. Dont like the look of the home version but the 61 note with no speakers looks ok.

I have s2, sk76, wk4, wk8, RP200 piano and a ketron sd1

Hello Dazza,

Nice collection of keyboards ya got there. Care to do a comparison of your Ketron SD1 and GEM WK8?

mike

PS. I own the WK8...Had it for about 4 years now. I've got the itch for something new.

Thank you EVERYONE, and specially Dazza

The problem I had with the wk8 installation of the 32 mg Simms has been resolved. I reversed the jumpers and it worked, everything is working except the vocalizer, which is no big deal as I was told

Once again thanks



[This message has been edited by ashraf-amir (edited 01-29-2003).]

Can we get this correct, you can't use the extra ram and vocal processor? it is one or the other ? or have I missed a bit?

That is my experience. I installed the vocal processor and the 8megs of backed dram myself. And I found out that the holder of two simms are used for either memory simms or vocal processor chips, which come with the vocal processor card.

Basically, you cannot have both and that is the reason there is a jumper and that is the reason the user ashraf amir had problems. The only way to install those is to disable the vocal processor.

Now I might be wrong of course. But that is my experience.

Hi everybody
dazza emailed me and said that he knows how to make the both work the same time.
So lets wait for his answer
.

It is poosible to have both working. I will explain once i find an easy way of writing it. he memory simms in the keyboard slots with the vocal processor are just for buffer memory. they do nothing else. You are right in saying they need to be there. However if 32mb of simms are installed then the buffer is still there as it uses these simms. The reason you having difficulties is all down to the jumper configuration. I will dig my service manual out and tell you exactly what needs to be where. If you go to the general page and click system info you will see descriptive of what you have ie voaltile sample ram/backed sample ram/v processor present. this tells you whats in there and whats working by denoting present by it.

i will try to look today with the answer. i have a WK8 here and everything works with 32mb of ram installed


Dazza

Dazza,
Is it possible to make this procedure public?

I myself wanted to do the same thing and I thought it was not possible. But if it is possible, let everybody know how to do it.

Thanks.

after a good start this subject ran dry and we still don't know how its done, It would be nice to have the knowledge

Apologies folks been out of country. I am working nights tonight 24/02/03 so will look during day........this will probably be your nite then

Dazza

WILL IT BE THIS YEAR