Component ReplaCement
6-28 powermax
65/85
Service Manual
9. Connect the ribbon cable to the new control board.
10. Carefully slide the control board behind the front panel.
11. Tilt the bottom of the control board toward the front panel until the control board rests on the plastic tabs. Push the
knob posts through the holes in the front panel.
12. Position the control board so that the mounting holes in the control board align with the mounting holes in the front
panel.
13. Secure the control board to the front panel. Use a #1 Phillips screwdriver to tighten the three screws to 7 in-lbs
(8kg cm).
14. Push the operating mode switch knob (with the white line) onto the mode switch post. Align the flat edge inside the
knob with the flat side of the post.
15. Push the adjustment knob onto the remaining post.
16. Carefully push the top of the front panel against the power supply. Be sure not to pinch any wires between the front
panel and the heat sink on the power supply.
17. Replace the metal strap on top of the power supply. Align the slot in the metal strap with the plastic tab in the front
panel and push the strap straight down. The four pins in the strap snap into the front and rear panels.
18. Replace the power supply cover. Refer to page 6-2 Remove and replace the power supply cover and Mylar®
barrier.
19. Reconnect the electrical power and the gas supply.
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