Studio 128X Read Me (PC)
4/8/98

WINDOWS 95 USERS: IMPORTANT DRIVER INSTALLATION INFORMATION

Due to a limitation of Windows 95, you can only install and enable drivers 
for 11 MIDI Ports/Devices.  If you exceed that amount, you may experience 
repeated system crashes either when booting Windows 95, when opening the 
Multimedia control panel, or when attempting to run a MIDI application. 

Note: Microsoft has fixed this problem in Windows 98, and the problem was not 
present in Windows 3.1.  It only exists in Windows 95.

The installer for the 128X will install 9 MIDI Ports (8 MIDI Output Ports + 1
Control Port for Sync).  In order to avoid the MIDI Port Limit problem, BEFORE 
you install the drivers for your 128X you should:

1) Go to Start> Settings> Control Panels> MultiMedia> Advanced> Click on
the '+' next to MIDI Devices and Instruments.

2) If you see 2 or fewer items listed you may proceed with the installation 
of the 128X driver and ignore the following steps. Otherwise proceed to step 3.

Note: A driver may still be in this list, but disabled.  To see if it is disabled, 
select an item in this list, and then click on the properties button at the 
bottom of the window.  This will bring up a window which will tell you if the 
device is enabled or disabled.

3) If you see 3 or more drivers listed,  you will need to disable one or more 
drivers for the other MIDI Ports/Devices which are installed (and currently 
enabled) in your system in order to install the drivers for the 128X 
properly.


DISABLING DRIVERS

Disabling drivers can be done in two ways:

1) For previously installed MIDI Interface drivers, software synth drivers, 
virtual piano drivers, etc. open Multimedia Control Panel> Advanced Tab> MIDI 
Devices and Instruments, select the driver to be disabled, click the 
Properties button and then select the radio button labeled "Do Not Use MIDI 
Features For This Device."

2) For most sound card drivers, open the System Control Panel> Device Manager Tab> 
Sound, Video and Game Controllers, select the driver to be disabled, click 
the Properties button and then check the checkbox labeled "Disable in this
configuration."

If you need further instructions on disabling specific drivers or have concerns 
about how disabling certain drivers will effect the performance of the 
corresponding devices in your system, you should consult the documentation 
for those devices or contact the Technical Support department for the 
manufacturer of the device in question for help.  Remember, since you are only 
disabling and not deinstalling the driver, you can always enable it later
without needing to reinstall it.

Drivers which would be good candidates for disabling are the drivers for MIDI
interfaces that are no longer attached to your computer, duplicate copies
of drivers for the same device, drivers for the MPU-401 emulating joystick
port on standard sound cards (most sound cards install multiple drivers,
check with the manufacturer of your sound card to determine which driver
you should remove), TTS Virtual Piano Driver (installed by Cakewalk, allows
your computer keyboard to function as a MIDI input device), etc.


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IF YOU CAN NOT RESTART WINDOWS 95 AFTER INSTALLATION

This is most likely because you failed to disable MIDI port drivers before 
installation as described above. MMSYSTEM.DLL is overloaded with more than 
11 MIDI ports and Windows 95 may not restart. To be sure that this is the 
problem you can click on the Details button of the Windows Error box and look
for an error message that refers to a general protection fault in module 
MMSYSTEM.DLL. To get Windows restarting again, and back to where you are ready 
for new driver installation, follow these directions...

1) Reboot holding down F5. This will boot Windows into Safe Mode without
any drivers loaded.

2) Choose Run in the Start menu. Type Sysedit into the Run dialog and click
on OK.

3) Click on the window labeled System.ini.

4) Delete all lines in your SYSTEM.INI file that contain the text 128X.

5) Quit Sysedit saving your changes and restart Windows.

6) Now you're in a position where you can attempt to reinstall drivers.
Go to the top of the ReadMe and follow the directions.

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LATE ADDITIONS & CORRECTIONS

The Studio 128X's SMPTE LED does triple duty:

- Slow flash when striping SMPTE

- Fast flash when reading SMPTE

- If not striping or reading, the SMPTE LED is ON if the 128X Mac OMS 
driver or the 128X Windows driver is in communication with the 
interface.  Checking for this solid SMPTE LED is a good way to 
verify the 128X is communicating with the computer and its software 
drivers.

Studio 128X Getting Started Guide, Correction:
On page 13, Preset Programs.  The manual says, "Preset 4-8, SMPTE: 
Initiate SMPTE at rate of 30 FPS non-drop, 29.97 drop, 29.97 
non-drop ... respectively".  It SHOULD say "Preset 4-8, SMPTE: 
Initiate SMPTE at rate of 30 FPS non-drop, 29.97 non-drop, 29.97 
drop ... respectively."  (29.97 drop and 29.97 non-drop are reversed.)

Online Help file, Correction:
The 128X Help file also reverses the order of the preset SMPTE Frame 
Rates with regards to the order of Presets 5-8 (29.97 drop and 29.97 
non-drop are reversed).

128XDIAG:
The 128XDIAG.EXE application is a DOS-only program.  Do not run the 
128XDiag in a Windows DOSbox or your computer may hang.  Instead, 
reboot your computer under DOS and run the DOS Diag under stand alone 
DOS.

Activating the Triggers or Footswitches:
Triggers or Footswitches will not become active until you open then 
Global Footswitch/Trigger window and make a selection.

Make sure your footswitch is plugged into the front of the 128X on 
power up in order for it to be recognized and configured correctly.

Networking:
PC Networking - On IBM compatible PCs the Studio 128X will network 
only under Windows 98 software. Windows 95 does not allow a user to 
configure more than 11 MIDI Ports without crashing.  Windows 98 will 
correct this limitation. Opcode will have a revised PC driver for 
the 128X after the release of Windows 98, which will allow it to 
share a serial port with another 128X or the Studio 64 XTC.  Visit 
the Opcode Web Page:   http://www.opcode.com/   and check the 
Downloads > Hardware section to get the latest 128X (PC) driver.