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LN-7 GMA WIRE FEEDER
G-2
PC BOARD LAYOUT
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 avail-
able from Lincoln Electric. This information is provided 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.
B7,B32A,B539,B541 CONNECTOR,TAB,QC,VERTICAL,1/4
B508,B509,B526,B527 CONNECTOR,TAB,QC,VERTICAL,3/16
C101,C117 CAPACITOR-ALEL,50,50V,+75/-10%
C102,C121 CAPACITOR-CD,.02,600V,+80/-20%
C103,C112,C113,C114,
C116,C120,C123 CAPACITOR-CEMO,.022,50V,20%
C104,C105,C110 CAPACITOR-PEF,.047,200V,10%
C106,C107,C108,C122 CAPACITOR-CD,.0047/.005,1400V,20%
C109 CAPACITOR-PEMF,0.33,200V,10%
C111 CAPACITOR-PEF,.01,200V,10%
C115 CAPACITOR-PEF,0.1,100V,10%
C118 CAPACITOR-PEMF,4.0,50V,10%
C119,C125 CAPACITOR-TAEL,4.7,35V,10%
CR101 RELAY-3PDT,24VDC,472OHMS
D101,D102,D103,D104,D106,
D107,D113,D114,D115,D116
D117,D118,D119,D120,D121
D124,D125,D126,D127,D128, D129 DIODE-AXLDS,1A,400V
D108,D109 DIODE-AXLDS,1A,1000V
D110 DIODE & HEAT SINK ASBLY
DZ101 ZENER DIODE-5W,20V,5%,1N5357B
DZ102 ZENER DIODE-1W,10V,5%,1N4740A
DZ103 ZENER DIODE-1W,20V,5%,1N4747A
F101 FUSE,2A,250V,FB,1.25 X 0.25
J101 PC BD PLUG ASBLY
J102 CONNECTOR-MOLEX
J103 PC BD PLUG ASBLY
J104 PC BD PLUG ASBLY
OCI101 OPTOCOUPLER-PHOTO-Q,70V,CNY17-3
PT101 TRANSFORMER-PULSE,3-WINDING,1:1:1
Q101 TRANSISTOR-N,T225,0.5A,250V,2N5655R126
Q102 TRANSISTOR-N,T226,0.5A,300V,MPS-A42
Q103 TRANSISTOR-N,T226,0.5A,40V,2N4401
Q104 TRANSISTOR-P,T226,0.5A,300V,MPS-A92
QU101 PUT-2N6027
R103,R107,R122,R124 RESISTOR-MF,1/4W,4.75K,1%
R105,R108,R144,R147 RESISTOR-MF,1/4W,1.00K,1%
R106 RESISTOR-CC,2W,1.5K,5%
R110,R111 RESISTOR-WW,5W,3.3K,5%,SQ
R112 RESISTOR-WW,10W,1.0,5%
R113 RESISTOR-CC,2W,2.2K,5%
R114,R141,R149 RESISTOR-MF,1/4W,150K,1%
R115,R117,R128,R129,R130 RESISTOR-MF,1/4W,10.0K,1%
R116 RESISTOR-MF,1/4W,1.00M,%
R118 RESISTOR-MF,1/4W,6.81K,1%
R119 RESISTOR-MF,1/4W,100K,1%
R120,R154 RESISTOR-MF,1/4W,332K,1%
R121,R123,R135 RESISTOR-MF,1/4W,2.21K,1%
R125,R142,R151 RESISTOR-MF,1/4W,3.32K,1%
R126 RESISTOR-CC,1/2W,15,5%
R127,R133,R155 RESISTOR-MF,1/4W,15.0K,1%
R131 RESISTOR-MF,1/4W,332,1%
R132 RESISTOR-MF,1/4W,13.7K,1%
R134,R138,R139,R146 RESISTOR-MF,1/4W,221K,1%
R136,R148 RESISTOR-MF,1/4W,18.2K,1%
R137 TRIMMER-ST,1/2W,2K,10%,LINEAR
R140 TRIMMER-ST,1/2W,10K,10%,LINEAR
R143 RESISTOR-MF,1/4W,1.82K,1%
R145 RESISTOR-MF,1/4W,133K,1%
R150 RESISTOR-MF,1/4W,47.5K,1%
R152 RESISTOR-MF,1/4W,5.11K,1%
R153 RESISTOR-WW,5W,2.7,5%,SQ
S101 SWITCH,DIP,SPST,8 CIRCUITS
SCR101,SCR104 SCR-T226,0.8A,200V,2N5064
SCR102,SCR103 SCR-T220,12A,400V,2N6397
TP101 MOV-150VRMS,80J,20MM
TP102 MOV-130VRMS,38J,14MM
TP103 MOV-50VRMS,15J,14MM
X101 IC-OP-AMP,QUAD,GEN-PURPOSE,224N
NOTE: Individual parts listed are not available from Lincoln Electric.
Item Identification
Item Identification
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