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Set the “CAL_FIX” Slide Switch back to “OFF” position.
Adjust SVR1 so that the temperature on display will be 127°C.
Once the machine is turned on, “TEMP” LED on the fixture will flicker and numeric LED display will show a certain number as an initial stage. Temperature on display can be changed by adjusting SVR1 potentiometer with set screw driver.
Set the “CAL_FIX” Slide Switch to “ON” position.
Remove TEMP SENSOR connector at “CN1” and connect line 1 from Calibration Fixture there. Connect line 2 from fixture to “CAL_FIX” connector on the PCB.
Remove both Side Covers first, then Rear Cover. Main PCB as shown below will be found.
Turn off the POWER SWITCH on the machine.
ULTIMA 65-1 & PATRIOT 25E TEMPERATURE CALIBRATION
Once calibration is completed, turn the Power Switch off, remove connectors from CALIBRATION FIXTURE, and put the TEMP SENSOR connector back, put the Rear Cover and both Side covers back on.