My S770 needs a little love, I need to figure out why the MSX mouse I
have won't work and it has been suggested that it could be issues with
the connections INSIDE. So I figure if I am gonna open it up I would
test everything else first and see when other work it might need. I
usually use my SCSI Jaz disk to save and load samples, but floppy can
be convieneient sometimes. I noticed that no matter what I do I can't
get the internal floppy to read or write to a floppy disk. I am
pretty sure I read somewhere that the 770 will read and write to 1.4Mb
disks. Is this true and what type of floppy drive do I need to
replace the one inside the 770? Can I use any drive or is it Roland
Specific?
Thanks
Does anyone know anything about the type of memory chips (SIMM?) that are required for the SP700? Can they be found cheaply anywhere? Can I use something I might find at an electronics/computer warehouse such as Fry's? I have 16MB installed and from the manual it looks like I need two 8MB SIMMs to brinG it up to the max of 32MB.
- Jeff
Thanks for the reply Steve. This list really HAS been quiet....
Just for the record, the 2 MB of RAM lives on the Motherboard. I'd
completely forgotten about that but found it when searching through
the manuals.
It's interesting....there are 4 possible configs:
If you add an 8MB chip into slot A, you'll have 8MB plus the 2MB
onboard = 10MB total.
If you add a 16MB chip into slot A, you'll have 16MB plus the 2MB
onboard = 18MB total.
If you add an 8Mb plus a 16MB, plus the 2 MB built-in = 26Mb total.
For some reason, if you use 2 x 16MB, the built-in 2MB is not used = 32MB
This comes from the Basic Manual.
So, I *DID* expect to see at least 2MB always, but certainly not 1MB,
as this is not really possible. It supports your theory that the
logic is faulty, not the RAM.
Oh damn.....
I think I'm in the market to buy a 2nd hand S760
Regards - Colin
- - - - - - - - - - - -
>Hi Colin,
>
>Sorry to hear about your trouble. Id say the logic somewhere on the
>motherboard is at fault in order for it to believe there is 2MB of
>ram when there isnt. (speaking of your ram removal test)
>And yes you can still get replacement ram, but i dont think you need
>to in this case. To me, the device should KNOW what ram it has and
>doesnt have, and all the screwy memory amounts its been giving you
>suggest a problem with its logic. I hope i'm wrong though and
>someone with experience has better information.
>
>Still nice to know that the list is alive....dont remember seeing a
>post in many months.
>
>Best of luck,
>-Steve
> Pgh, PA
Hi folks,
My trusty old S760 has suddenly become very ill.
I have 2 x 16 MB RAM chips but suddenly I am getting messages that
there is no memory left. The System parameters section seems very odd
- sometimes it says I have 2 MB and sometimes only 1 MB. The wave
memory seems to vary from boot to boot. Sometimes I have less than 1
sec (!!!) and sometimes about 8 sec.
I have tried the following:
- Rebooted many times from different system disks.
- Removed the RAM, and replaced it
- Swopped the RAM chips around.
- Tried with only one RAM chip in slot A
When I remove the RAM entirely, I get the onboard 2MB RAM that one
would expect.
So....is my RAM faulty or is there some kind of problem with the main
motherboard? Can one even get replacement RAM in this century?
I'd be grateful for any feedback and suggestions.
Regards - Colin
Hello,
I have a S550 inc the Roland mouse & the green screen .
no SCSI option but in VGC ...
Is anyone interested ?
Don't hesitate to contact me.
The item is in France.
Please advise,
PAtrice Jacquot.
