Fixing / Upgrading Kurzweil K2500

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Toddskins

Toddskins

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Joe,

Couple of questions, first.

Did you get the Owner's Manuals when you bought it?

Does the floppy drive still work fine?


You may be right that the the latest OS for the K2500 is 2.8, but I thought it was higher. I know that in mine, the Boot Objects are 5.0 and 4.3 for some various objects. When they upgraded the OS one time (I don't recall which version), it changed some key features by moving things into different places, adding Vocoder ability, and some other things. Also, they have different versions of Objects based on which modules are installed on your keyboard, i.e. Piano block, Orchestration, Contemporary sounds. There are a couple different versions of software that it will tell you about, and I think they are located in the "Intonation" scale menu within Master. Move the wheel and cycle through all the intonation tables, and the last few will show you the OS or the Object Blocks installed. I don't recall where the OS is shown, if not here.


Almost everything is downloadable from Kurzweil's site, but if something is missing, let me know. If you don't have the disks necessary to do the upgrades, I can figure out a way to EMail them to you, since I have them all. I have them on Floppies.

IF I recall, you can do a soft or hard reset and restore everything to the initial stage it was purchased in, and from there you can get to a boot loader.

One of the Kurzweil papers for OS v.2.8 in front of me now describes how to get to the boot loader from a Hard Reset. It reads:

1) Start the K2500
2) Press and release the Exit key while the "Please wait..." message is displayed. This brings up the K2500 Boot Loader
3) Load the operating system floppy, then use "Install System" from the K2500 Boot Loader to install the new operating system
4) Replace the operating system disk (after you've installed it) with the factory objects disk, then use the Boot Loader's "Install Objects" option to install the correct objects for your configuration.


It then gives a list of the objects and which ones to use for various configs.

But I know that when I installed KDFX, and then upgraded it to KDFXv2, that I have later versions of all the objects.

If you don't have KDFX, then you'll probably stick with this 2.8 version, but I would still look around for a higher version, just to be sure.


V. 2.8 introduced "LIVE MODE". 2.5 brought in KB3 Mode. But I know I have additional algorithms for KB3 that were improved over v. 2.8. Also additional algorithms within the V.A.S.T., I think.

Always check Ebay for KDFX, if you want it, and Internal Hard Drives that will work inside your machine. You said you were taking your hard drive out (Why I cannot remember), but it's very nice to have everything "right there" from the hard disk. The only issue with this is that you have to format it with an old Windows OS, like Windows 98, if you want it DOS formatted, which I highly recommend. aaaaah... computer complications. No fun.

Keep me updated
 
Thanks for the reply, Todd.

KDFX requires a higher OS than my rather stock K2500x.

v.3.02 is the latest OS for non KDFX boards. I have it on floppy and previously tried the steps you recommended.

As I said elsewhere, I don't get the boot loader screen when I press the Exit button but rather the normal boot. Therefore I cannot get into the diagnostics or upgrade the OS! I also tried using the 1+2+3 keys that have gotten me into boot loader on a k2000r.

Does anyone have any idea why I'm not getting into the boot loader?

Maybe I have an older chipset. I'll open the board again to get the version numbers of the chips. I don't plan on spending $130 for them. I don't need KDFX. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110486895000&ssPageName=STRK:MEWAX:IT

I removed the internal hard drive because I don't want any additional load on the old board's power supply. I already don't like the smell of this scratch n dent unit. I've been using zip100 scsi and usb drives to load and transfer sounds btw my PC and K2000r. I've not ruled out the possibility of replacing the internal floppy drive with an internal Zip 100 drive.

I plan to sell the 1gb hard drive and internal mounting kit. I took pics of the cable connections before removing them.

Does a stock K2500 have a fan in the bottom or is that just required when the internal hdd is installed? I understand the latter is true for the K2000 but I don't see a fan as an accessory for the K2500 on sweetwater.com.

You should not need windows 98 to format a K2000/2500 hard drive. In the newer windows os you'll have to select FAT not NTFS when you format it. The old Fat16 disks were limited to 2GB partitions so that will have to be created as well in disk manager on the PC. I don't know if the K2x00 supports Fat32 with its large partition sizes. One of the advantages to k2500 OS v2.98 is the ability to partition a hard drive.
 
Does the K2500 OS have the ability on start up to automatically load the Ram objects that were loaded the previous time the board was powered on?

The Ensoniq TS10/12 automatically request this and will therefore automatically load the samples from scsi or floppy--a nice time saver.

Autoloading of samples plus an internal hdd or custom internal zip100 drive would be a very nice combo. I like the Zip 100 because I can easily move the cartridges to/from my PC where I do my sampling.

I suppose the alternative would be to setup my samples/sounds in a bank (200-299) and then load that every time I power up.
 
I can't remember about the fan.

Yes, the Kurzweil can load anything you want when it starts. Check the manual on MACROS. Basically, you create the steps you want to sequence as if you were manually loading everything yourself, and that Macro will perform those steps upon bootup.

You have to tell the Kurzweil which Drive is your Bootup drive, and then place this special Macro in the Root directory.

Sweetwater's first Grand Piano sample CD, was 16MB, and almost cannot be improved upon. This discussion/argument has been carried on endlessly here on HR threads, but as I discovered and another expert wrote somewhere else, the size of the samples are not what makes for a great Piano sample patch. We players (and programmers) look for evenness throughout.

I have that Piano sample, as well as some other high-end and more expensive samples, but I typically stay with my 16MB Youngchang sample from Sweetwater. Absolutely great. It's triple strike, and plays evenly and just gives me no issues at all.

By the way, they include that 16MB sample set (for free) when you buy their latest CD Piano samples called Grand Pianos v. 3, which have 64MB versions of Steinway, Borsendorfer, and I think Yamaha.
 
K2500 Boot-Loader & OS Upgrade

I finally got the unit to allow me into the boot-loader.
I did a hard reset using Master : Reset.
It then let me in when I pressed Exit during boot up.
It installed OS v. 3.02 just fine.

Todd, thanks for the tip on the Macros feature. It looks great. I may remove the unit's floppy and install an internal Zip 100 scsi drive that I picked up from a computer recycler. I then use a usb Zip 100 on my PC to reorganize, move or archive samples and sequences. It is much easier moving 100mb of data rather than 1.4mb on a slow floppy. I'll have a spare external Zip 100 scsi if anyone needs it? They also work with Ensoniq samplers.
 
ZIPs

I have both a USB and SCSI Zip 250 drive. I ordered a special SCSI cable to connect the ZIP to my Kurzweil SCSI port, but have never used it yet.

My question to you is, How do you get a Floppy connector to accomodate a SCSI connector??? I must be missing something.

The Floppy connector looks nothing like the SCSI.

Are you intending to simply install the ZIP drive in the Floppy space, but use the SCSI wiring to the SCSI port? You must mean that.

Will the ZIP drive fit in that space?

:confused:
 
Internal Iomega Zip Drive

I'm a computer & server support professional so I've been installing SCSI gear going back to the mid 1990's. I've used the Zip 100 (Z100s) not the 250. I believe the Zip 250 is actually a parallel-scsi hybrid not a true scsi. There might be limitations such as not allowing other scsi devices--cdrom drive--to be connected at the same time.

Yes an internal Zip drive will fit in a floppy drive slot. I've not yet done this on the K2x00 so I can't say with certainty that the floppy is standard, however it is very unlikely to be a non standard size. There could be a question about the cosmetic look--I believe they are not black.

Yes, you would use the same scsi cable that would be used for an internal scsi hard drive. The power connector for the zip is the same as for a floppy.

The only issues are setting the Scsi ID--you cant have duplicate numbers attached to the kurz at the same time. It is set with a jumper. If there is no jumper it will almost certainly be ID 0. That is just fine unless you are using an old Mac on the scsi buss that has its internal hdd set to 0.

Finally you may need to have the terminating resistors installed on the zip drive. There is a good chance they will already be installed. If you have any problems I could post pics.

Good luck they are nice to work with--except there is an issue with the Zip100 going to sleep (spinning down) and causing the K2000 to hang. I've gotten around this by removing and reinserting the cartridge. I believe they resolved this in the K2500. The spinning down or sleep is one reason I like them--they don't create as much load on the power supply as a constantly running hard drive.

The zip 250 is not listed in this list of approved drives
http://www.sweetwater.com/k2000/k2500drives.html
The internal zip100s are somewhat rare and go for $40 on ebay. The external zip100s go for around $20.
They also have a nice list of free krz sounds.
http://www.sweetwater.com/k2000/sounds.html
 
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