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COMMANDER 300
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G-11
ELECTRICAL DIAGRAMS
PC BOARD ASSEMBLY - METER BOARD
2-5-99A
G
ITEM
REQ'D
PART NO. DESCRIPTION
C2,C4,C7,C10,C11,C12,C13 28 S16668-11 .1/50
C14,C15,C16,C21,C22,C23
C3,C5,C8,C40 4 S13490-25 4.7/35
C18,C33,C43 3 S16668-5 .022/50
C19,C20 2 S16668-1 22pF/100
C42 1 S13490-104 39uF/20V
C45 1 S13490-96 .15/200
D1,D2,D3 3 T12199-1 1N4004
D4 1 T12705-14 DIODE
DZ1,DZ2,DZ3 3 T12702-33 1N5347B
DZ4,DZ5 2 T12702-27 1N4740
J8,J9 2 S22025-5 CONNECTOR,MOLEX,MINI,RT-L
LED1,LED2,LED3,LED4,LED5 6 S17395-5 LED DISPLAY
LED6
OCI1,OCI2,OCI3,OCI4,OCI5 5 S15000-28 OPTOCOUPLER,TTL-OUT
Q3,Q4,Q5,Q6,Q7 5 T12704-69 2N4403
R1,R2,R3,R4,R5,R6,R7,R8,R9 20 S19400-20R0 20 1/4W
R10,R38,R39,R40,R41,R42
R55,R56,R73,R74,R82
R11,R12,R13,R14,R15,R16 21 S19400-1001 1K 1/4W
R17,R54,R58,R61,R63,R64
R65,R66,R69,R71,R72,R80
R81,R153,R160
R18,R19,R20,R21,R22,R33 10 S19400-15R0 15 1/4W
R34,R35,R36,R37
R23,R24,R25,R26,R27,R28 10 S19400-1500 150 1/4W
R29,R30,R31,R32
R43,R44,R96,R97,R98,R104 24 S19400-1002 10K 1/4W
R106,R107,R108,R111,R112
R117,R120,R121,R122,R123
R126,R132,R133,R148,R149
R45,R46,R47,R48,R57,R70 9 S19400-4751 4.75K
R118,R127,R131
R50,R51,R52,R53,R59,R60 48 S19400-1620 162 1/4W
R67,R76,R77,R78,R79,R83
R84,R85,R86,R87,R88,R89
R90,R91,R92,R93,R94,R95
R109,R110,R113,R114,R115
R116,R119,R124,R125,R128
R129,R130,R134,R135,R136
R137,R138,R139,R140,R141
R142,R143,R144,R145
R62,R68,R154,R156,R158 5 S19400-4750 475 1/4W
R75 1 S19400-1004 1M 1/4W
R150,R151,R152 3 S19400-3010 301 1/4W
TP1 1 T13640-26 18V/100J MOV
X2 1 M15102-3 IC,S8054HN,UNDERVOLT. SENSING CIR. (SS)
X3 1 M15104-13 IC,24C01A,CMOS,EEPROM (SS)
X4 1 S15128-5 +5V REG.
X7,X8,X9,X11,X12,X14 6 S17900-25 IC,74HC573A,CMOS,LATCH,3-STATE (SS)
X10 1 M15105-7 IC,CMOS,MPU,A/D,10-BIT(SS)
X13 1 S17900-9 14 PIN I.C. (SS)
X15 1 S15128-10 IC,431,VOLTAGE REF.
Y1 1 S16665-2 4.0 MHz
J8 J9
LED1 LED2 LED3
LED4 LED5 LED6
Q2
Q1
X1
X8
X7
X9
X12
X11
X14
X13
X6
X5
X4
X2
Y1
C1
C3
C10
C38
C27
C45
C2
C20
C11
C18
C4
C5
C42
C6
C41
C19
C29
C26
C15
C12
C33
C43
C21
C16
C17
C8
C9
C7
DZ2
DZ5
DZ3
DZ1
DZ4
D4
D1
D3
D2
R130
R139
R143
R138
R129
R110
R113
R140
R115
R114
R141
R142
R144
R116
R109
R88
R1
R11
R12
R13
R14
R6
R7
R2
R15
R16
R17
R54
R65
R55
R38
R39
R101
R98
R158
R61
R159
R99
R100
R126
R102
R120
R146
R56
R73
R40
R123
R149
R41
R66
R71
R72
R80
R81
R42
R74
R82
R53
R52
R95
R92
R78
R60
R93
R91
R89
R51
R90
R59
R94
R50
R79
R105
R96
R23
R48
R49
R58
R118
R148
R75
R43
R131
R46
R127
R47
R57
R86
R84
R77
R45
R87
R125
R137
R85
R83
R67
R76
R128
R136
R135
R134
R124
R119
R145
R44
R147
R103
R69
R70
R104
R150
R151
R155
R154
R156
R64
R157
R121
R68
R63
R106
R62
R160
R153
R18
R8
R9
R10
R24
R25
R19
R26
R27
R28
R3
R29
R30
R31
R4
R20
R5
R21
R32
R22
R122
R152
R117
R33
R133
R108
R97
R107
R132
R111
R34
R35
R112
R36
R37
C35
C28
COMMANDER
METER
G3178-2
C24
C30
C23
C13
C22
C36
C14
C39
C31
C34
C37
C44
C25
C32
C40
OCI1 OCI2 OCI3
OCI4 OCI5
Q7 Q6 Q5
Q3
Q4
X10
X15
TP1
X3
0
.25
4.75
5.00
.25
1.25
5.50
7.75
8.75
9.00
4.25
0
~.04
~.04
Q1,Q2 2 T12704-62 TRANSISTOR
C1,C6,C9,C17,C25,C27 6 S13490-42 1.0/35
C24,C26,C28,C29,C30,C31
C32,C34,C35,C36,C37,C38
C39,C41,C44
R155,R157,R159
R49,R146,R147 3 S19400-1003 100K 1/4W
R99,R100,R101,R105 4 S19400-6811 6.81K 1/4W
R102,R103 2 S19400-6812 68.1K 1/4W
X1 1 S24214-2 ROM ASSEMBLY(SS)
X5,X6 2 S15128-5 +5 V REG.
3178-2
G-11
NOTE: Lincoln Electric assumes no responsibility for liabilities 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 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.