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EMAX II SCSI PROBLEM HELP

2014-06-06 by - LIFELIKE -

Hello friends :-)

I recently got my hands on a new Emax II keyboard, model 2112, stereo 2MB, and im facing a little problem. 
The problem occur when i connect whatever scsi peripherals, like CDROM apple 300e, or ZIP 100 drive or spyrus CF card R/W.

Emax II is on ID 1, when i press : Drive Select and choose SCSI ID 2 where my CDROM reader is, the screen
either got frozen, either it shows black stripes and the sampler reboots.

All works fine, but not the SCSI (external), is there anything wrong, or is there any chip missing maybe on the mainboard ?
I opened the emax to clean it, but as im not an expert, maybe if i send one of you guys a photo of the board, 
you might be able to help me more?

Maybe i am connecting things wrongly ? i tried with terminated plug and without but it either freezes the machine either puts him back into a reboot…

Thanks in advance for your help

Laurent
--

Re: [emax] EMAX II SCSI PROBLEM HELP

2014-06-06 by Ted Summers

Laurent-

The HD inside will have termination. you can have termination problems which result in the behavior.

If you unhook HD, boot from floppy then only have Zip externally with terminator, let us know if that works.

If it does, that confirms issue with SCSI chain setup.

E-mu did not follow "best practice" in their SCSI setup for these devices (they made it a star if you use both internal and external, and it is supposed to be chained....)

Regards,
Ted

Show quoted textHide quoted text

On Fri, Jun 6, 2014 at 2:37 PM, - LIFELIKE - lifelike@... [emax] <emax@yahoogroups.com> wrote:

Hello friends :-)

I recently got my hands on a new Emax II keyboard, model 2112, stereo 2MB, and im facing a little problem.
The problem occur when i connect whatever scsi peripherals, like CDROM apple 300e, or ZIP 100 drive or spyrus CF card R/W.

Emax II is on ID 1, when i press : Drive Select and choose SCSI ID 2 where my CDROM reader is, the screen
either got frozen, either it shows black stripes and the sampler reboots.

All works fine, but not the SCSI (external), is there anything wrong, or is there any chip missing maybe on the mainboard ?
I opened the emax to clean it, but as im not an expert, maybe if i send one of you guys a photo of the board,
you might be able to help me more?

Maybe i am connecting things wrongly ? i tried with terminated plug and without but it either freezes the machine either puts him back into a reboot…

Thanks in advance for your help

Laurent
--

------------------------------------

------------------------------------

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Re: [emax] EMAX II SCSI PROBLEM HELP

2014-06-06 by - LIFELIKE -

Ted

Thanks again for your fast reply!

Well, the problem seem actually even more complicated, there was no HD inside my EMax II keyboard, so i took a simple old Quantum, that works well in an old Mac

Classic, but the drive isnt even recognised by the system i tried any SCSI id and he doesnt see it, the drive is now formatted HFS macintosh but

im trying to format it for the Emax II of course, but he cant find it, basically its like the SCSI active sensing is dead…

the menus inside the Emax are there but the sampler doesnt detect either internal HD or external CDROM, i even tried with an old Apple CD 150 (1x :-)

The HD is set on ID 1…

I dont understand whats going on, i will now take some pic of the mainboard and the output board

What i dont understand in there is that its a model #2212 and i dont see the stereo sampling menu on the screen, i can choose to sample either pri or sec…

Maybe the guy i bought this, swapped some board or removed the stereo chip?

I'll prepare some pictures now

As i know Ted that you're the Emax Guru in here, maybe you faced this before?

Le 7 juin 2014 à 00:48, "Ted Summers djtbs1@... [emax]" <emax@yahoogroups.com> a écrit :

Laurent-

The HD inside will have termination. you can have termination problems which result in the behavior.
If you unhook HD, boot from floppy then only have Zip externally with terminator, let us know if that works.

If it does, that confirms issue with SCSI chain setup.
E-mu did not follow "best practice" in their SCSI setup for these devices (they made it a star if you use both internal and external, and it is supposed to be chained....)

Regards,
Ted

On Fri, Jun 6, 2014 at 2:37 PM, - LIFELIKE - lifelike@... [emax] <emax@yahoogroups.com> wrote:

Hello friends :-)

I recently got my hands on a new Emax II keyboard, model 2112, stereo 2MB, and im facing a little problem.
The problem occur when i connect whatever scsi peripherals, like CDROM apple 300e, or ZIP 100 drive or spyrus CF card R/W.

Emax II is on ID 1, when i press : Drive Select and choose SCSI ID 2 where my CDROM reader is, the screen
either got frozen, either it shows black stripes and the sampler reboots.

All works fine, but not the SCSI (external), is there anything wrong, or is there any chip missing maybe on the mainboard ?
I opened the emax to clean it, but as im not an expert, maybe if i send one of you guys a photo of the board,
you might be able to help me more?

Maybe i am connecting things wrongly ? i tried with terminated plug and without but it either freezes the machine either puts him back into a reboot…

Thanks in advance for your help

Laurent
--

------------------------------------

------------------------------------

Emax and Emax II User&;#39;s GroupYahoo Groups Links

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Re: [emax] EMAX II SCSI PROBLEM HELP

2014-06-06 by Ted Summers

To tell stereo or not, look at IC on the audio board....IC9 = MONO, IC10 = stereo, also to check the STEREO PAL IC 25 label "IP457" for stereo. If those are both there (IC10 and correct IP457)- it's stereo and EMAX may have lost its setttings. Then you need to do service to bring back the settings (reset available for fee from EPR electronics).... As to SCSI- many drives have onboard termination, or may have jumpers but the actual termination resistors may not be there (I have had this situation and had to order the resistors), in which case jumper is useless. for that we need more pictures to confirm it.

-Ted

Show quoted textHide quoted text

On Fri, Jun 6, 2014 at 4:19 PM, - LIFELIKE - lifelike@... [emax] <emax@yahoogroups.com> wrote:

Ted

Thanks again for your fast reply!
Well, the problem seem actually even more complicated, there was no HD inside my EMax II keyboard, so i took a simple old Quantum, that works well in an old Mac

Classic, but the drive isnt even recognised by the system i tried any SCSI id and he doesnt see it, the drive is now formatted HFS macintosh but
im trying to format it for the Emax II of course, but he cant find it, basically its like the SCSI active sensing is dead…

the menus inside the Emax are there but the sampler doesnt detect either internal HD or external CDROM, i even tried with an old Apple CD 150 (1x :-)

The HD is set on ID 1…
I dont understand whats going on, i will now take some pic of the mainboard and the output board

What i dont understand in there is that its a model #2212 and i dont see the stereo sampling menu on the screen, i can choose to sample either pri or sec…

Maybe the guy i bought this, swapped some board or removed the stereo chip?

I'll prepare some pictures now

As i know Ted that you're the Emax Guru in here, maybe you faced this before?

L.

Le 7 juin 2014 à 00:48, "Ted Summers djtbs1@... [emax]" <emax@yahoogroups.com> a écrit :

Laurent-

The HD inside will have termination. you can have termination problems which result in the behavior.
If you unhook HD, boot from floppy then only have Zip externally with terminator, let us know if that works.

If it does, that confirms issue with SCSI chain setup.
E-mu did not follow "best practice" in their SCSI setup for these devices (they made it a star if you use both internal and external, and it is supposed to be chained....)

Regards,
Ted

On Fri, Jun 6, 2014 at 2:37 PM, - LIFELIKE - lifelike@... [emax] <emax@yahoogroups.com> wrote:

Hello friends :-)

I recently got my hands on a new Emax II keyboard, model 2112, stereo 2MB, and im facing a little problem.
The problem occur when i connect whatever scsi peripherals, like CDROM apple 300e, or ZIP 100 drive or spyrus CF card R/W.

Emax II is on ID 1, when i press : Drive Select and choose SCSI ID 2 where my CDROM reader is, the screen
either got frozen, either it shows black stripes and the sampler reboots.

All works fine, but not the SCSI (external), is there anything wrong, or is there any chip missing maybe on the mainboard ?
I opened the emax to clean it, but as im not an expert, maybe if i send one of you guys a photo of the board,
you might be able to help me more?

Maybe i am connecting things wrongly ? i tried with terminated plug and without but it either freezes the machine either puts him back into a reboot…

Thanks in advance for your help

Laurent
--

------------------------------------

------------------------------------

Emax and Emax II User's GroupYahoo Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/emax/

<*> Your email settings:
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<*> To change settings online go to:
http://groups.yahoo.com/group/emax/join
(Yahoo! ID required)

<*> To change settings via email:
emax-digest@yahoogroups.com
emax-fullfeatured@yahoogroups.com

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emax-unsubscribe@yahoogroups.com

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Re: [emax] EMAX II SCSI PROBLEM HELP

2014-06-06 by - LIFELIKE -

Thanks so much for that Ted, i see now the IC10 is missing, and i guess you'll confirm me that for a Emax II keyboard 2212 it should be there right ?

Its a 2meg machine…

This would then mean that the seller swapped the board right ? or the took away the chip ?

Here is a pic of the output board… followed by the mainboard on the SCSI side

Let me know if you need more close up pictures… for those IC and PAL chips, is there any way to get them

apart from buying a new Emax ? :-)

Re: EMAX II SCSI PROBLEM HELP

2014-07-01 by jaumemod@...

You should try to format the disk in a system to wipe it. Again, empty, formatted with any file system. IF you reformat a disk with a particular file system (HFS, NTFS ...) the EMAX II will not detect or even to format it.

Another solution is to format the system EMAX II Chicken Sys Translator under Windos system

Re: EMAX II SCSI PROBLEM HELP

2014-07-01 by jaumemod@...

Item 1, SCSI.

The connector to external devices is just an extension of the SCSI board. Yes you must have cuidadocon terminator in the devices properly placed operates a chain SCSi smoothly. I use the external connector through an HD and CDROM. If I remember correctly, if you install an internal HD the system assigns the ID 1, the Floppy ID 0 and any external device is assigned the ID 2 onwards. Floppy ID0, ID1 HD HD IN OUT ID2, ID3 CDROM OUT ..... up to 3 more devices. You should put terminator on the internal HD and only the last device or external chain.

Check out the model of your drive and will leave doubts as to manually configuring the ID using jumpers. Even you may have terminators automated resistance. I guess it's a Quantum ProDrive.

Point 2 Stereo.

This is the configuration of my EMAX II mod, 2212 extended to 8 MB

IC9 empty IC10 IN> Stereo

IN IC9 empty IC10> Mono

None of the IC> Shit! Unusable.