Akai S1000 / S1100 samplers

----- Original Message -----
From: jonnywahahaa
To: akaiS1000S1100Samplers@yahoogroups.com
Sent: Monday, June 26, 2006 5:19 PM
Subject: [akaiS1000S1100Samplers] checking ram


>I have four 8 meg ram modules with my s-1000HD and they worked when i
>bought the sampler, but now i can only use 4meg of it in the o.s.
>I tried moving the ram modules around in different orders, but without
>success.

Did you try to test each of the 8 meg memoryboards separately in the same
( 1st ) slot to sort out any of the boards might be defective?
If the boards are o.k. and the slot 1 too, - you must read a message in the
S-1000s display "4 mega words fitted" w/ each of the boards in this slot.

If all the boards work in the 1st slot, so let one of the boards in slot 1
and try a 2nd one in the next ( 2nd) slot...
Now the display must show "8 mega words fitted"...
... and so on, - 12 mega words w/ 3 and 16 mega words w/ 4 of the 8 meg
boards.
If one of all the working boards ( tested in slot 1 ) fails in any other
slot, - this might be a / the faulty slot.

Check if the solderingpoints of the slot are o.k., - there are many...

For work w/ 4 8meg memoryboards, the address-bus of the S-1000 (HD) must
have been changed in the past by re-soldering 2 bridges on its mainboard, -
the big digital board on the bottom of the case.
See http://www.firstpr.com.au/rwi/smem/8Meg.html
"S-1000 jumpers"
If the, or one of the solderingpoints (or the wires) of these bridges are
broken p.ex., - the 32 meg of RAM can\ufffdt be adressed anymore.

>Can someone give me some insight in finding the bad ram module(s) and
>setting up the good ones? Or could it be the ram slots?

It can be a lot, - if you have a faulty digital-board, then there\ufffds no
chance for repair without a service manual, special equipment, - and
sometimes only a replacement-board will do the trick. You won\ufffdt find any
b.t.w. !
Replacement parts for the S1xxx series are very rare and very hard to find.
Same w/ service manuals !
Schematics are senseless/uesless for measuring on this board, - you need the
servicemanual.
In this case it\ufffds better to sell your damaged S-1000(HD), - maybe the
working parts of it, - and to buy another used machine.

But before you do this, check everything described above and IMPORTANT, - do
not swap or insert memoryboards in a running machine !!!!
Do all steps one-by-one, the sampler switched off and switch it on only for
reading the display, - then off again !!!

>thank you,
>Michael

hope this will help a little...

regards, - PeWe