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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-15
POWER MIG 300
PC BOARD ASSEMBLY - MSP3 PANEL - CODE 10562 - 11098
UNLESS OTHERWISE SPECIFIED:
CAPACITANCE = MFD/VOLTS
INDUCTANCE = HENRIES
RESISTANCE = OHMS
MSP OPTION
PANEL
M19790-2
D
R
LED2LED3LED4
LED1LED6
LED7 LED5
X1
X2
C8
C5
C4
C6
C2
C7
C1
C3
R12
R14
R13
R15
R1
R2
R6
R4
R9
R8
R7
R5
R19
R17
R18
R16
R3
R10
R11
X4
X5
X3
X6 X7
LED8
C10
C11
C12 C13
C14
C15
R20
R21
R22
R23
R24
C16
R25
DISP
1
J341
C9
S1
O
N
12
J34
1
LED
GROUND SIDE
2
M19790-2
A
ITEM REQ'D PART No. DESCRIPTION
18T15176-2LED SPACER
21L11166-1 FLEX CIRCUIT
3.01 OZ.E3539 ELECTRICAL INSULATING COMPOUND
C1,C2,C3,C4,C5,C6,C7,C8,C10 15S16668-11 CAPACITOR,CEMO,0.1, 50V,10%
C11,C12,C13,C14,C15,C16
C9 1 S13490-104 CAPACITOR,TAEL,39,20V,10%
DISP1 1 S17395-9 LED,DISPLAY,7-SEGMENT,CC,4-DIGIT
J34 1 S18248-10 CONNECTOR,MOLEX,MINI,PCB,10-PIN
J341 1 S19365-8 CONNECTOR,PCB,MALE,RT-L,8-PIN
LED1,LED2,LED3,LED4,LED5 8 T13657-6 LED,T-1,RED,HLMP-K101
LED6,LED7,LED8
R1,R2,R12,R13,R14,R15,R16 16 S19400-1001 RESISTOR,MF,1/4W,1.00K,1%
R17,R18,R19,R20,R21,R22
R23,R24,R25
R3 1 S19400-2670 RESISTOR,MF,1/4W,267,1%
R4,R5,R6,R7,R8,R9 6 S19400-1212 RESISTOR,MF,1/4W,12.1K,1%
R10 1 S19400-2002 RESISTOR,MF,1/4W,20.0K,1%
R11 1 S19400-9091 RESISTOR,MF,1/4W,9.09K,1%
X1, X2 2 S20496-1 IC,CMOS,DRIVER,DISPLAY,LED,CC,MCU
X3 1 S17900-28 IC,CMOS,HEX,BUFFER,3-STATE,2-BIT,4-BI
X4 1 S17900-8 IC,CMOS,INVERTER,SCHMITT,HEX,HC14A(SS
X5 1 S17900-26 IC,CMOS,MUX,DAT,8-INPUT,HC151(SS)
X6, X7 2 S17900-10 IC,CMOS,REGISTER,SHFT,S-PI/SO,8-BIT(S
S1 1 S19869-2 SWITCH,DIP,SPST,2-CIRCUITS
FOR ITEMS BELOW REFER TO ELECTRONIC COMPONENTS DATABASE FOR COMPONENT SPECIFICATIONS
G-15
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