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MN220-‐1 A 81
Portable Oxygen Concentrator
CONTROL PANEL / KEY PAD REPLACEMENT
When replacing the control panel/key pad, always use an ESD
safe-‐work area. Also, use an ESD wrist strap to protect electronic
circuitry.
1.
Remove the front and rear cover per the HOUSING REMOVAL section of this manual.
2.
Remove the PSA system per the PSA REMOVAL section of this manual.
3.
Remove the control panel/keypad flex circuit from the Ziff (zero insertion force) connector
by carefully lifting upward on the locking tabs. This is connection J8 for the FreeStyle and
connection J9/J10 for the FreeStyle 5.
4.
Remove the flex tab circuit from the rib guides, and peel off the control panel/keypad from
the center enclosure.
5.
Replace control panel/keypad with the new control panel / keypad.
6.
Check recessed area of enclosure center section to ensure that the plastic is clean.
7.
Remove the adhesive backing and seal backing from the new control panel/key pad.
Figure 23.1: New Control Panel