SERVICE NOTES
1.0
Video Board Adjustment Procedures
1.1
Component Location
Two video gain potentiometers are located on the process and display PCB at the lower right corner of the board.
They are mounted with the screw adjustments facing outward and may be adjusted without removing the cover
plate if the door is fully opened. The lower pot is for Station 1 and the upper one for Station 2.
1.2
Conditions Required for Adjusting
System on
Monitor on
Program operating
Coax cable from video panel monitor output to monitor Input connected
Monitor's video Input switch In 75S position
1.3
Procedure
a. Select a page and turn monitor brightness and contrast controls C.W.
b.
Turn video gain pot until picture appears.
c.
Adjust brightness and contrast controls along with video gain pot for best picture.
d.
If both video outputs are used, adjust both gain pots for equal output levels.
2.0
EPROM Replacement Procedure
2.1
EPROM Usage
System PC Boards (Process and Display and Input) have one or more EPROM's plugged into sockets Installed on
the board. When replacing these boards, It may be necessary to change the EPROM(s) from the old board to the
new board. If this Is required [replacement boards are generally shipped without EPROM(s) Installed] or If a new
replacement EPROM must be Installed, observe the following.
Section 9 - Page 2
