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PRECISION TIG 225 CONTROL BOARD
J2
J3
J4
PIN 4 (LEAD #201)
PIN 3 (LEAD #204)
PIN 7 (LEAD #210)
PIN 8 (LEAD #209)
PIN 3 (LEAD #232)
PIN 2 (LEAD #260)
T1 TRANSFORMER TEST (continued)
PROCEDURE
1. Remove main supply power to the machine.
2. Using the 3/8” nutdriver remove the case wrap-
around cover.
3. Locate plugs J3 and J4 on the
control board. See Figure F.2.
4. Carefully apply the correct input power making
certain the reconnect configuration at the input
switch is correct for the input voltage applied.
Turn the TIG 225 ON.
5. Using the voltmeter carefully test for the correct
transformer secondary voltages per Table F.1.
TROUBLESHOOTING AND REPAIR
F-18 F-18
PRECISION TIG® 225
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FIGURE F.2 – Plugs J3 & J4 on Control Board