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Terminal Blocks
TBl = DC Power and Power Monitor Status.
For Rev E. and later boards
For Rev. D and earlier boards
TBl-1 and TBl-3 = +24A
TBl-2 and TBl -4 = COMMON
TBl-5 = PM IN (Power Monitor IN)
TBl-6 = P.S. Trouble Output
TBl-7 = SHIELD for COMMON
TBl-8 = SHIELD for CHASSIS
TBl-1 and TBl-3 = +24A
TBl-2 and TBl-4 = COMMON
TBl -5 and TBI-7 = +24B
TBl-6 and TBl-8 = COMMON
TBl-9 = PM IN (Power Monitor IN)
TBl-10 = P.S. Trouble Output
TBl -11 = SHIELD for COMMON
TBl-12 = SHIELD for CHASSIS
TB2 = Primary and Secondary VAC I/O
TB3 = Secondary AC Voltage Input
TB4 = Transformer secondary Inputs
Terminate field wiring in accordance with the appropriate
4100 Field Wiring Diagrams (841-731).
IMPORTANT:
If the system has but one power supply, jumper TBl-4 to TBI -5 (TBl-8 to TBl-9 on Rev. D or earlier
boards).
DISPLAY BOARD (562-795)
The Display Board provides a means for the operator and the 4100 or UT to communicate with one another.
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The operator communicates via keypads made up of membrane switches.
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The 4100 communicates via nine LEDs, a 2-line x 40-character LCD display, and a tone-alert piezo on the Master
Controller Board that sounds whenever there is a system status change.
COMPONENT LOCATIONS AND FUNCTIONS
(FIGURE 10)
Potentiometer R2
Rotate R2 as required to adjust LCD operator interface viewing angle.
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R2 is accessible through an opening in the panel display.
Connectors
Pl = 14-pin PC board/LCD connector.
P2 = 26-pin PC board/Master Controller Board connector.
P3 = 13-pin PC board/Keypad connector.
P4 = 3-pin PC board/LCD Backlight connector.
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