Emulator IV X Error Message

[kazper]

Originally Posted by Distelfeld

Hi Everyone,

my E4X is displaying the message "CSUM Error".

Would any of you have a hint what could be wrong with the box?

Many thanks in advance.

Kind regards,
D.

I once had a URF()cKED message popped up on mine.

Seriously, it sounds like a major error of some type....

When do you get said message that you inquire about? ... what were you doing ....

[Distelfeld]

Actually I am getting this during startup and the machine doesn't boot

[kazper]

I was thinking that, or when your doing disk actions....

ok.... start with the simple crap...

Take it out of the rack, unplug it and take the cover off. Clean the dust and stuff inside and look for any obvious issues, like a leaky battery. Post a picture here.

If that's done then reseat all the memory cards, one at a time, and blow compressed air to make sure nothings in the slots.

The EOS samplers have multiple types of memory cards. Ram for samples, Flash ram/rom for the OS and the Flash/expansion slots. so don't swap them.

Reseat/check all cables, verify there in in all the way.

after the cleaning/reseating reboot the machine....


The next step is check the ram, rather by swapping it with other ram or removing it and using the stock onboard memory.


You may need to re-flash the OS... sometimes that can't be done if the machine is locked up.


Get to that point and then we can look it up. I think it needs a couple disks. But your machine may be to far out.

[covariance]

Most of the times it is the failure of the power supply.
The PSU is weak and after a few years an electrolytic cap wears so much the supply line fails. This cause misreading of the digital bus, memory, etc.
Later Emus have a stronger PSU.
If you have a look at the PSU you can see that a cap is humped because it dried out and should be replaced.

[MFPhouse]

...i think also you have to make everything new.

Flash Prep.... than Soft ....

here you get everything you need

E-MU: Downloads

keep us informed

Good Luck

[Hypnocil]

If it helps, I think "CSUM" is a contraction of "checksum", and this is used to check whether errors have crept into blocks of data. So, rather than the power supply directly, I'd suspect that the ROM has a problem - or a ROM card (if any). Of course this could have been fried by a dodgy power supply.

[kazper]

I was thinking he needed to check the PSU a little later too...

I've had issues with samplers appearing to be broken and it was bad ram, which is why I went there first, lower than normal power will make things go wacky too.

[Distelfeld]

Thanks for your input so far. I opened the unit and the motherboard looks clean, battery seems intact.

When removing the boot flash simm the unit will only display a blank screen when powered up.

After the error message the unit displays "checking floppy" alternating with "checking flash".

Is my assumption correct that it would be a good next step to get hold of a boot diskette and try booting the unit with that?

[Muser]

If it's a checksum it might be hard drive related.

so disconnect the hard drive if you have one. and then boot off a floppy if that's how those devices work. also re-seat the boards which can be reseated. not sure if those have a battery but it could be good to put a meter across it to see its condition.

[Distelfeld]

Finally got hold of a USB diskette drive to create an OS disk for the E4X.

I'm somewhat puzzled... The .sit file available from Emu contains a .img file that won't open under MacOS X and it does not fit on a standard 1.44 diskette, no matter if its formated as MS-DOS or Mac Format

I'm sure I'm missing something - any clues?

[Distelfeld]

Ahhhhhhh... finally.

what I did to create the OS disk in case anybody faces the same problem:

Open a terminal session

become root:
sudo bash

unmount the floppy device (you can find out which device it is using the mount command):
umount -f <floppy device>

Create the disk from the downloaded image:
dd if=<os image> of=<floppy device>

voila - an Emu boot disk.

Upon inserting the disk into the E4X it asked me if it should update the flash, which I answered with yes and now the unit boots just fine

How can I find out if the unit has 2MB flash so I could update to EOS 4.62?

[kazper]

Originally Posted by Distelfeld

[FONT=Arial]Ahhhhhhh... finally.
How can I find out if the unit has 2MB flash so I could update to EOS 4.62?

Pop the lid, look at the sockets, there should be 2 slots I believe... look at the cards and it will tell you if you have 1 or 2.

http://www.emusonacid.co.uk/forum/vi...hp?f=10&t=1937

[W-W-Int]

Originally Posted by Distelfeld

Ahhhhhhh... finally.

what I did to create the OS disk in case anybody faces the same problem:

Open a terminal session

become root:
sudo bash

unmount the floppy device (you can find out which device it is using the mount command):
umount -f <floppy device>

Create the disk from the downloaded image:
dd if=<os image> of=<floppy device>

voila - an Emu boot disk.

Upon inserting the disk into the E4X it asked me if it should update the flash, which I answered with yes and now the unit boots just fine

How can I find out if the unit has 2MB flash so I could update to EOS 4.62?

you have an e4x it has the 2 mb boot flash the only ones with 1 meg were the e-64 and early e-6400 and the original e4 early runs. all the later e4 series has the bigger 2 mb flash rom.