A - Board Layouts; Processor Board - Partlow MRC 7800 Installation, Wiring, Operation Manual

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Appendix A
Board Layout
FIGURE A-1 - Processor Board
JU1
ENABLE MODE
UNLOCKED LOCKED
JU8
RAM SIZE
64K
JU3
EPROM SIZE
64K
JU4 PEN 1 INPUT
mV
VOLT/mA
JU5 PEN 2 INPUT
(REVERSE
OF JU4)
mV
VOLT/mA
SWI for Rev. X and below
MICRO
RAM
U5
U8
JU1
JU8
Battery
TB2
TB3
Top
SWI for Rev. Y and above
230/115 VAC
SWITCH 230 VAC
MODEL ONLY
EPROM
JU3
U7
JU5
JU4
TB4
TB1
TB5