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AST RESEARCH, INC.       TECHNICAL BULLETIN # 1096                   3-9-95

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		NO SOUND FROM Z-PLAYER CD-ROM ATTACHED TO POWEREXEC


PROBLEM

When a Zenith Data Systems Z-Player (external CD-ROM unit) Model ADR-0200 is 
attached to a PowerExec's parallel port, using IRQ 7, no sound will be heard 
from the Z-Player's speakers.

CAUSE

The Z-Player is not compatible with the PowerExec while using IRQ 7.

SYSTEMS AFFECTED

All PowerExecs systems.

SOLUTION

Edit the files CONFIG.SYS, AUTOEXEC.BAT, and/or SYSTEM.INI to allow the use 
of IRQ 5.

1. The AUTOEXEC.BAT file must contains the following statements:
	
	C:MSCDEX /D:MSCD000 /M:8 ;CD-ROM extension DOS driver
	C:AUDCARD ;ESS audio card services client

2. For the ADR-0200 Z-Player 2.0, do the following:

a. With the ESS Installation ver 2.0 (PCMCIACD.SYS file size is 14576), 
   within the CONFIG.SYS file, manually modify the following statement

	DEVICE=C:\PCMCIACD.SYS /D:MSCD000 /N:1

   to read

	DEVICE=C:\PCMCIACD.SYS /D:MSCD000 /N:1 /I=5
	
   Please note the "=" sign that is used in conjunction with the "I" parameter 
   to set the interrupt value.

b.  Next, manually edit the SYSTEM.INI file to read as follows:
	
	SYSTEM.INI
	[auddrive.drv]
	AudioDrive=ES688
	Synth=OPL3
	port=220
	int=5
	dmachannel=1
	(etc...)
	
3. For the ADR-0200 Z-Player 3.0, do the following:

When configuring the ESS Z-Player 3.0 Installation, simply change to the 
PCAUDIO directory and run ZCONFIG (updates both CONFIG.SYS and SYSTEM.INI 
files). You will be prompted for the interrupt, DMA channel, and the name of 
the Windows directory.  

Reboot the system for the changes to take effect.

NOTE:  It is worth noting that the CONFIG.SYS statement is different with the 
version 3.0 PCMCIACD.SYS file (14864 bytes):

	DEVICE=C:\PCMCIACD.SYS /D:MSCD000 /N:1 /I:5 /A:1

Note that all switches use ":" and the addition of the "/A" parameter that 
selects the DMA channel being used.