Scr Operation - Lincoln Electric PRECISION TIG 275 SVM162-B Service Manual

FROM
CONTROL
BOARD
OPTIONAL POWER
FACTOR
CORRECTION
CAPACITORS
POWER
SWITCH

SCR Operation

BACKGROUND
CIRCUIT
X1
X2
115 VAC
THERMOSTAT
115 VAC
20 VAC
20 VAC
ADVANCED CONTROL
PANEL RECEPTACLE
MINIMUM
OUTPUT
CONTROL
MAXIMUM
OUTPUT
CONTROL
REAR GANG
POLARITY
SWITCH
AC DC
SCR
BRIDGE
AC DC
SHUNT
FAN
GAS
SOLENOID
CONTROL BOARD
PROTECTION
STICK
METER
BOARD TIG
SWITCH
BALANCE
CONTROL
REMOTE
RECEPTACLE
WORK
BYPASS BOARD
FRONT
ELECTRODE
HIGH FREQUENCY
TRANSFORMER
REAR
ELECTRODE
HIGH VOLTAGE
TRANSFORMER
THERMOSTAT
LED's
LOCAL/REMOTE
POST
SWITCH
FLOW