Lincoln Electric IDEALARC SP-250 Service Manual page 107

G-7
Item
R97,R110,R160,R161, . . . RESISTOR-MF,1/4W,1.50K,1%
R171,R172,R188,R189
R23,R115,R147,R187 . . . . RESISTOR-MF,1/4W,15.0K,1%
R95 . . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,16.5K,1%
R11,R15,R18,R166,R177 . RESISTOR-MF,1/4W,2.21K,1%
R46,R47,R102,R111 . . . . . RESISTOR-MF,1/4W,22.1K,1%
R118 . . . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,267,1%
R114 . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,2.67K,1%
R105 . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,26.7K,1%
R165,R170 . . . . . . . . . . . . . RESISTOR-MF,1/4W,26.7,1%
R120,R123,R130,R135 . . . RESISTOR-MF,1/4W,28.0K,1%
R150 . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,3.01K,1%
R49,R82 . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,332,1%
R33,R34,R35,R36,R37, . . RESISTOR-MF,1/4W,3.32K,1%
R38,R39,R40,R50,R51,R52,R53,R92,R112
R100,R101,R164,R169 . . . . RESISTOR-MF,1/4W,33.2,1%
R66,R146 . . . . . . . . . . . . . RESISTOR-MF,1/4W,3.92K,1%
R89 . . . . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,475,1%
R71,R81,R90,R91, . . . . . . RESISTOR-MF,1/4W,4.75K,1%
R136,R190
R116 . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,47.5K,1%
R125,R127 . . . . . . . . . . . . . RESISTOR-MF,1/4W,511,1%
R126,R131 . . . . . . . . . . . . RESISTOR-MF,1/4W,51.1K,1%
R167,R168,R173,R174 . . . . RESISTOR-MF,1/4W,562,1%
R10,R68,R104,R106 . . . . RESISTOR-MF,1/4W,5.62K,1%
R77,R109,R113,R122, . . . RESISTOR-MF,1/4W,6.81K,1%
R133,R149
R107,R117 . . . . . . . . . . . . . RESISTOR-MF,1/4W,750,1%
X6 . . . . . . . . . . IC-CMOS,MCU,NO-ROM,DIP,68HC11A1P
X9 . . . . . IC-CMOS,UNDERVOLT-SENSING,RESET,MCU
X12 . . . . . . . . . IC-CMOS,SWITCH,ANALOG,QUAD,4066
X1 . . . . . . . . . . IC-OP-AMP,QUAD,GEN-PURPOSE,224N
X3 . . . . . . . IC-CMOS,GATE,NAND,2-INPUT,QUAD,HC00
X5 . . . . . . . . IC-CMOS,LATCH,3-STATE,OCTAL,HC373A
X2,X20 . . . . IC-CMOS,INVERTER,SCHMITT,HEX,HC14A
X7 . . . . . . . . . . . IC-CMOS,REGISTER,SHFT,SI/PO,8-BIT
OCI1 . . . . . . . . OPTOCOUPLER-PHOTO-Q,70V,CNY17-3
X11,X13,X19 . . . . . . . . . IC-COMPARATOR,QUAD,2901N
X8 . . . . . . . . . IC-CMOS REGISTER,SHFT,S-PI/SO,8-BIT
X21 . . . . . . . . IC-CMOS,TRNSCVR,BUS,3-STATE,OCTAL
Q21,Q31 . . . . TRANSISTOR-N,T226,0.5A,300V,MPS-A42
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshoot-
ing. 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.
ELECTRICAL DIAGRAMS
G2252 CONTROL PC BOARD
Identification
IDEALARC SP-250
Item
Q1,Q2,Q3,Q4,Q5, TRANSISTOR-N,T226,0.5A,40V,2N4401
Q10,Q12,Q14,Q22,Q23,Q40,Q41
Q13,Q25 . . . . . . . TRANSISTOR-P,T226,0.5A,40V,2N4403
R191 . . . . . . . . . . . . . . . . . RESISTOR-MF,1/4W,475K,1%
Y1 . . . . . . . . . . . . . . . . . . CRYSTAL-QUARTZ,4.000MHZ
OCI2,OCI3 . . . . . . . . . . .OPTOCOUPLER TRIAC DRIVER
SCR1,SCR2 . . . . . . . . . . . . . . . . . . .4 A. 400 VOLT. SCR
G-7
Identification