NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric.This information is pro-
vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the
machine.
ELECTRICAL DIAGRAMS G-12
V300 PRO
PC BOARD ASSEMBLY- DRIVER - (L8660-[])
G-12
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Item Identification
CR1, CR2, CR3, CR4 RELAY, SPNO 24VDC 6000 ohms
AG-CDO
D1 DIODE, AXLDS 1A400V
DZ1, DZ2 DIODE, Zener 1W 12V 5%
1N4742A
J9, J10, J16 CONNECTOR, Molex mini PCB
6 pin
J11 CONNECTOR, Molex mini PCB
4 pin
P9, P10, P16 (plugs into PLUG, Molex mini 6 pin
J9, J10, J16)
P11 (plugs into J11) PLUG, Molex mini 4 pin
Q1, Q2 TRANSISTOR, NMFT247 4A900V
R1, R2, R13, R14 RESISTOR, WW 20W 5% 250K
R3, R4, R5, R6, R8, R9, RESISTOR, MF .25W 1% 150K
R7, R12 RESISTOR, MF .25W 1% 100K
T1 TRANSFORMER, PCB
NOTE:Individual parts listed are not available from Lincoln Electric.