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F-20
TROUBLESHOOTING & REPAIR
F-20
WIRE-MATIC 255
TEST PROCEDURE
NOTE: POLARITY MUST BE
OBSERVED FOR THESE TESTS.
Test for Correct Wire Drive Motor
Armature Voltage
1. Disconnect main input power to the
machine.
2. Remove the Case Top and Side
Panels using a 5/16" nut driver.
3. Locate Plug J5 on the G2803
Control Board. See Figure F.8.
FIGURE F.8 - Plug J5 Location on
G2803 PC Control Board.
WIRE DRIVE MOTOR AND TACHOMETER FEEDBACK TEST (CONTINUED)
J2
J7
J4
J10
J6
J9
J3
J5
#541 (W)
(13J5)
#206B
(2J5)
J1
#555
(1J5)
#539 (B)
(12J5)
#515B
(3J5)
G2803
WM-255 CONTROL