TM 5-3810-307-24-1-2
12. THEORY 1A. MAIN BOARD MEASURING POINTS
Main Board 024-350-300-094
* Notch on EPROM must match the notch on the socket and markings on the board.
MP TEST POINTS
MP- 0 / X9 = KGND
MP-17 = +5V
MP- 1 = +5V
MP-18 = +5V
MP- 2 = -5V
MP-19 = -5V
MP- 3 = SIGNAL FORCE TRANSDUCER
MP-20 = OPERATING VOLTAGE
(LOAD CELL)
MP-21 = INPUT VOLTAGE
MP- 4 = SIGNAL PRESSURE PISTON SIDE
MP-22 = +10V
MP- 5 = SIGNAL PRESSURE ROD SIDE
CH.1 BOOM LENGTH, MP-6/P6 (DO NOT
MP- 6 = 1ST LENGTH INPUT FOR MAIN
ADJUST)
BOOM
CH.2 FORCE CHANNEL, MP-4/P4 (NOT
MP- 7 = 2ND LENGTH INPUT
USED)
MP- 8 = ANGLE MAIN BOOM
CH.3 FORCE CHANNEL, MP-5/P5 (AUX.
MP- 9 = ANGLE LUFFING FLY JIB
HOIST)
MP-10 = +3V REFERENCE VOLTAGE
CH.4 FORCE CHANNEL, - MP-3/P3 (MAIN
MP-11 = GROUND MP-12 = +5V
HOIST)
MP-13 = DIGITAL GROUND
CH.5 ANGLE CHANNEL, - MP-8/P8 (MAIN
MP-14 = +9V
BOOM) (DO NOT ADJUST)
MP-15 = ANALOG GROUND
CH.6 ANGLE CHANNEL, - MP-9/P9
MP-16 = -9V
(LUFFING) (DO NOT ADJUST)
