Lincoln Electric R3R-300 service manual R3R-500 Control PC Board

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G-10	ELECTRICAL DIAGRAMS
R3R-500 Control PC Board

R9	R6	R8	R5	R7	R4	DZ1	C1	C12	COMMON
								+15V		C11
					D6					D14
					D5					R90
					D4				R10	D15
									R11

ITEM	REQÕD.	PART No.	IDENTIFICATION
C1	1	S13490-8	50/25
C2,C30	2	S13490-35	50/15 OR 16
C3	1	S13490-4	.022/200
C4,C9	2	S16668-3	100pF/100
C5,C10,C27,C28,C29	5	S16668-5	.022/50
C6	1	S13490-62	.0033/200
C7,C12,C14,C15,C24,C25,C26	7	T11577-38	.02/600
C11	1	S13490-73	20/50
C18,C19,C20	3	T11577-62	1/200
C21,C22,C23	3	S13490-102	.047/100
C31	1	T11577-57	0.1/400
D1,D2,D3	3	T12199-2	1N4007
D4,D5,D6,D7,D8,D9,D10 ,D11,D12,D13,D14,
D15,D16,D17,D18,D19,D20,D21,D22,D23,	30	T12199-1	1N4004
D24,D25,D26,D27,D28 ,D29,D30,D34,D35,
D36
D31,D32,D33	3	T12199-4	IN4005
DZ1	1	T12702-23	1N5352B
DZ2	1	T12702-33	1N5347B
DZ3	1	T12702-9	1N5234B
DZ4	1	T12702-40	1N4735
DZ5,DZ6,DZ7,DZ8	4	T12702-29	1N4744A

G-10

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R3

R2

D3

G

D2

F

D1

E

										C20
R64	R97	R58		D23	C26	R88	QU3			SCR3
			D20
	R61	R70	R73	DZ8	R76	C23	D36	R85	C29	R79 R82
										R67
										C19
R63	R96	R57		D22	C25	R87	QU2			SCR2
			D19
	R60	R69	R72	DZ7	R75	C22	D35	R84	C28	R78 R81
										R66
										C18

D7

D8

D9

DZ2 C2

1	-10V
R3R-500 CONTROL G2206-		L
		K

TP1

A H

D10				R52
R14
R13
DZ5				X3
R32	R33		R29
	R34		D11	B
R53		D24		R28
			OCI1
D17
			OCI3
				J

R25

R26

C10	R20	R19	R103	R102	R18	R17	R30
				X1

D30	C
	R12
	R15
	R27
	DZ3
	D26
	R54
	R46
	R99
	R98
	R47
	R101
	R100
	R89
	R36
D13	R22

R41

R45

R38

R40

D12

R37

D27

R48

R50

R35

R42

Q2

Q1

OCI2

C3	C6
R91
R24
X2	C9

DZ9	1	T12702-8	1N5240B
OCI1	1	S15000-1	4N28
OCI2,OCI3	2	S15000-5
Q1, Q2	2	T12704-69	2N4403
QU1,QU2,QU3	3	T12707-4
R1,R2,R3	3	T12300-73	250 20W
R4,R5,R6,R7,R8,R9	6	T14648-12	1500 5W
R10,R29,R52	3	T10812-67	100K 1/2W
R11,R48	2	S19400-1503
R12,R15,R21,R27	4	S19400-2672
R13,R14,R32,R35,R37,R39 R80,R81,R82	9	S19400-1003
R16	1	T10812-62	500 1/2W
R17,R18,R47,R89	4	S19400-6813
R19,R20,R22,R98,R99,R100	9	S19400-1004
R101,R102,R103
R23,R65,R66,R67	4	T10812-39	50K 1/2W
R24	1	S19400-6811

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R62

R95

R56

D21

C24

R86

SCR1

TP2

R94

R49

C15

C7

C14

C31

C4

D28

C5

D29

QU1

TP3

R44

D25

D18

N

R55

R1

R23

R16

R21

D16

R59

R68 R71

DZ6

R74

C21

D34

R83 C27 R77 R80

R93

R92

D32

R31

DZ9

C30

R51

DZ4

R39

R65

D31

D M

D33

R43

J4

J3

J2

J1

R25,R26,R41,R77,R78,R79	6	S19400-4751
R28,R45,R74,R75,R76	5	S19400-2213
R30,R31,R91	3	T14230-23	5.0 MEG
R33	1	S19400-5622
R34,R95,R96,R97	4	T14231-12	150 1/2W
R36,R42,R59,R60,R61	5	S19400-1002
R38	1	S19400-2673
R40,R83,R84,R85	4	S19400-2670
R43,R49	2	T14231-16
R44	1	S19400-1301
R46	1	T14231-2	10M 1/2W
R50	1	S19400-3321
R51	1	T14231-15	68 5W
R53	1	S19400-1501
R54	1	S19400-2211
R55	1	S19400-3323
R56,R57,R58,R62,R63,R64 R92,R93,R94	9	T14231-11	100 1/2W
R68,R69,R70,R71,R72,R73	6	S19400-2671
R86,R87,R88	3	S19400-1001
R90	1	T10812-41	10K 1/2W
SCR1,SCR2,SCR3	3	S15161-19
TP1,TP2,TP3	3	T13640-12	38J
X1,X2	2	S15128-9
X3	1	S15128-4
R92,R93,R94

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 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.

R3R