Lincoln Electric INVERTEC V300-PRO SVM105-B Service Manual page 115

G-23
PC BOARD ASSEMBLY - PROTECTION - (L7915-2)
5 1
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
5 2
H 5 5 3
Item
B5, B14, B51, B52, B53
C1, C3, C4, C5, C6
C2
D1, D3, D4, D5, D6, D7
D8
DZ1
J8
J15
OCI1, OCI2, OCI3, OCI4
P8 (plugs into J8)
P15 (plugs into J15)
R1, R2
R3, R13, R16
R4, R5, R11, R12
R6, R8, R9, R10, R27
R7, R20
R14
R15
R18, R26, R28, R32
R19
R21, R23, R24, R25,
R29, R30, R31, R33
R22
R34, R36
R35, R37
TERMINALS (P8, P15)
X1
X2
NOTE: Individual parts listed are not available from Lincoln Electric.
1 4
G-23
Identification
CONNECTOR, tab 1/4"
CAPACITOR, ceramic
CAPACITOR, tantlm etc.
27µf 35VDC
DIODE, 1A 400V
DIODE, 1A 1000V
DIODE, IN4740 Zener 10V 1W
RECEPTACLE, Molex mini 4 pin
RECEPTACLE, Molex mini 6 pin
OPTO, Isolator CNY17-3
PLUG HOUSING, Molex mini 4 pin
PLUG HOUSING, Molex mini 6 pin
RESISTOR, MF .25W 1% 681K
ohm
RESISTOR, MF .25W 1% 1.82K
ohm.
RESISTOR, MF .25W 1% 150K
ohm
RESISTOR, MF .25W 1% 56.2K
ohm
POTENTIOMETER, Cermet trmr
.25W 1% 5K ohm
RESISTOR, MF .25W 1% 100K
ohm
RESISTOR, MF .25W 1% 475
ohm
RESISTOR, MF .25W 1% 10K
ohm
RESISTOR, MF .25W 1% 3.32K
ohm
RESISTOR, MF.25W 1% 15K
ohm
RESISTOR, MF .25W 1% 332K
ohm
RESISTOR, MF .25W 1% 276K
ohm
RESISTOR, MF .25W 1% 332
ohm
TERMINALS, Molex mini
QUAD OP-AMP
VOLTAGE REGULATOR, linear
7805 5VDC
V300 PRO