SENSATION I (250-1650)
INSTALLING A NEW SOUND CARD               FAXBACK DOC # 2630

It is recommended that when you install a new sound card
into the Tandy Sensation I Computer, you should disable the
original onboard sound circuitry.  Then you can install the
new sound at the same IRQ, I/O address and DMA channel as
the original sound circuitry, and therefore, will not
experience any hardware conflicts.

When the original sound circuitry is disabled, and the new
sound board is installed, the user will experience the "side
effects" listed below:

1.   TeleMind, the answering machine software that came with
     the Sensation I, will no longer function.

2.   The "SPEAK TEXT" option within WinMate, will not work
     correctly.  When you click on the "SPEAK TEXT" button
     or menu option, the text entered will be spoken,
     however, the computer will generally go into a loop and
     speak the same text over and over again until you exit
     out of Windows.

3.   CD Audio will no longer play from the Sensation I's
     built in RCA jacks.  If you install an optional CD
     Audio cable, you will still be able to play CD Audio
     from the RCA jacks on the new sound card.

4.   The built in speaker will simply function as PC
     Speaker.  The user will have to purchase external
     speakers to hear sound.  The volume controls on the
     front of the computer will obviously no longer
     function.

Follow the steps outlined below to install a new sound card:

1.   Edit the SYSTEM.INI  and change the SHELL line from
     "SHELL=DESKTOP.EXE" to "SHELL=PROGMAN.EXE".

2.   Delete the following lines from the AUTOEXEC.BAT file:

     loadhigh \bin\VISBIOS
     rem The sndmixer program sets the sound levels ...
     if exist c:\windows\sndmixer.exe c:\windows\sndmixer /r

3.   In the Control Panel, under Drivers, remove the three
     Tandy  drivers:

     Tandy MMA Wave/MIDI Port
     Tandy Wave/MIDI Synthesizer
     Tandy Virtual DSP Driver

4.   Edit the SYSTEM.INI and remove the following device
     line under the 386 Enhanced section.

     DEVICE=VDSPD.386 (If Virtual DSP driver was installed)

5.   Reboot the computer.  When you see the memory message,
     press the <F2> key to run the Sensation I Setup
     program.  (The SETUP program can also be accessed by
     running the "SETUPMMS" program in the \BIN directory of
     the Sensation I Startup Diskette).

6.   Use the arrow keys to highlight the option "MULTIMEDIA
     [ENABLED].  Press the <SPACE BAR> to toggle it to
     [DISABLED].

7.   Press the <F2> key to save the settings and exit.

8.   Install the sound card according to its documentation.
     Set the sound card to I/O port address 220, IRQ 5, DMA
     channel 1.  If it is a 16 bit card, there may be an
     option for a high DMA.  Set the high DMA for "NONE" or
     "DISABLED".  While installing the sound card, replace
     the existing black audio cable from the back of the CD-
     ROM drive with the cable listted below:

     CATALOG NUMBER:               250-1640
     PART NUMBER:                  W-0411

     TANDY NATIONAL PARTS:         (800) 442-2425

     (This cable is designed to attach the original LMS CD-
     ROM drive to a Creative Labs sound board.  If the
     customer does not have a Creative Labs sound card, the
     cable may not fit.)

(RDS 4/19/96)