Electrical diagrams, 12 j7, Idealarc® cv-305 – Lincoln Electric IDEALARC CV-305 User Manual
Page 95
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-7
IDEALARC® CV-305
PC BOARD ASSEMBLY - METER PC BOARD - M15893-3
METER
M15893-3
Q
1
X5
X4
X3
X2
X1
R2
8
R2
7
R26
R25
R2
4
R2
3
R2
2
R2
1
R2
0
R1
9
R1
8
R1
7
R1
6
R1
5
R1
4
R1
3
R1
2
R1
1
R1
0
R9
R8
R7
R6
R5
R4
R3
R2
R1
LED3
LED2
LED1
D1
C8
C7
C6
C5
C4
C3
C2
C1
D2
NOTES
N.A. DO NOT COAT WITH ENCAPSULATION.
N.B. CAUTION: THIS DEVICE IS SUBJECT TO DAMAGE
BY STATIC ELECTRICITY. SEE E2454 BEDORE HANDLING.
N.C. TOP SURFACE OF DISPLAYS TO BE FREE OF ENCAPSULATION
MATERIAL. ALL DISPLAYS MUST BE FROM THE SAME VENDOR.
INDUCTANCE = HENRIES
RESISTANCE = OHMS
CAPACITANCE = MFD/VOLTS
UNLESS OTHERWISE SPECIFIED:
0
.55
3.75
4.00 ±.04
0
.25
2.25
2.50 ±.04
ITEM
QTY
PART NUMBER DESCRIPTION
1
1
M15893-E
PC BOARD BLANK
2
3
S14020-5
PLASTIC EXPANSION NUT, 0.38
REFERENCES
QTY
PART NUMBER DESCRIPTION
C1, C2, C3, C4, C7, C8
6
S16668-5
CAPACITOR,CEMO,.022,50V,20%
C5, C6
2
S16668-8
CAPACITOR,CEMO,330pF,100V,5%
D1
1
T12199-1
DIODE,AXLDS,1A,400V
D2
1
T12705-22
DIODE,AXLDS,0.15A,75V,1N914
J7
1
S18248-4
CONNECTOR,MOLEX,MINI,PCB,4-PIN
LED1, LED2, LED3
3
S17395
LED,DISPLAY,7-SEGMENT,CA,MAN6660
Q1
1
T12704-26
TRANSISTOR,ND,TO226,0.5A,30V,MPS-A13
R1
1
S19400-4750
RESISTOR,MF,1/4W,475,1%
R2
1
S19400-3321
RESISTOR,MF,1/4W,3.32K,1%
R3, R4, R5, R6, R7, R8,
R9, R10, R11, R12, R13,
R14, R15, R16, R17, R18,
R19, R20, R21, R22, R23,
R24, R25, R26
24
S19400-1000
RESISTOR,MF,1/4W,100,1%
R27, R28
2
S19400-3011
RESISTOR,MF,1/4W,3.01K,1%
X1, X2, X3
3
S17900-9
IC,CMOS,REGISTER,SHFT,SI/PO,8-BIT(SS)
X4
1
S17900-23
IC,CMOS,FLIP-FLOP,D,DUAL,HC74(SS)
X5
1
S17900-8
IC,CMOS,INVERTER,SCHMITT,HEX,HC14A(SS)
REFER TO ELECTRONIC COMPONENT DATABASE FOR SPECIFICATIONS ON ITEMS LISTED BELOW
1
2
J7
N.A.
N.C.
N.B.
N.B.
N.B.
N.A.
2.00
ALL COMPONENTS AND MATERIALS USED IN THIS
ASSEMBLY ARE TO BE RoHS COMPLIANT PER E4253
G-7