MAINTENANCE
5-18
HT4400
Instruction Manual
3
J5
J6
J7
J3
J4
J1
J2
Microprocessor Control Board PCB2 - Status Indicators
See page 6-2 for location of Microprocessor Control Board.
D5
+12 VDC
D4
+5 VDC
D14 & D19
Not Used
D22
Plasma Start
D11
Arc Transfer