PROM Installation Guide
Lynx Keyboard Control Unit
q	Optional	TIMELINE VISTA, INC.
		1755 LA COSTA MEADOWS DRIVE, SUITE B
q	Recommended	SAN MARCOS, CA   92069
		TEL. 760-761-4440
	Mandatory 	(FAX 760-761-4449)
SUPPORT@DIGAUDIO.COM

DATE:	5/29/92
MODEL:	Lynx Keyboard Control Unit (KCU)
REVISION:	All
SERIAL NO:	All
SOFTWARE:	KCU PROM(s)	U2	U3, if supplied
	
REQUIRED TOOLS:
	
	Static safe workstation	Phillips screwdriver
	Grounding wrist strap	Small slotted screwdriver	

REQUIRED PARTS:
	
	Software Information Sheet
	Replacement PROM(s) from TimeLine

PROCEDURE:

1.	Turn off the power to the KCU power supply unit. Disconnect all cables. 

2.	Place the KCU on a static safe workstation. Ground yourself and the workstation anti-static mat.

3.	Remove the two phillips screws holding the PROM cover to the chassis. Remove the cover by lifting up, out and sideways.

Figure 1.  Remove the  PROM Cover

PROM Installation Guide

PROCEDURE continued:

4.	Depending on the KCU version, software may be supplied on 1 or 2 PROMs. Install all of the PROMs that are shipped to you.

5.	Locate U2, the KCU PROM and U3 if supplied. Remove and replace the PROM(s). Be careful 
to correctly align Pin 1 and properly seat the PROM(s), see Figure 2.

Warning

To remove and replace the PROM, use a small slotted screwdriver. Insert the screwdriver under 
the PROM, twist slightly and gently lift up. Inserting the screwdriver incorrectly could 
damage surrounding components.

Figure 2.  KCU PROM Location

6.	Replace the PROM cover. Insert and tighten the 2 phillips screws. Note, using too much forward pressure when installing the screws could damage the KCU bottom cover.  Reconnect the cables and turn on the power. The KCU will automatically detect the new software version.