SECTION 15—P.C. BOARD
Platinum™Series 66 Part No 1110538
SECTION 15—P.C. BOARD
Replacing P.C. Board
ƽ DANGER
To prevent electrical shock, ALWAYS disconnect concentrator from electrical
outlet before servicing.
CAUTION
Only qualified service technicians should make any changes to this equipment.
Follow these pre-cautions to prevent damage to the P.C. boards:
Before handling any P.C. boards, you need to be properly grounded to prevent
static damage to the components of the board. A Static Cuff MUST be worn and
properly grounded using an alligator clip. Electrical conduit or a water pipe is
normally sufficient when a known good ground is not available. Care should be
taken to ensure that the alligator clip contacts with bare metal surface.
When removing quick disconnects terminals, DO NOT pull on wire itself as damage
to the connection may occur. Hold down the P.C. board with one hand and use an
upward force with a slight rocking motion to remove the terminals.
Before installing any P.C. boards, ensure that all insulators are in place.
NOTE: For this procedure, refer to FIGURE 15.1 on page 67.
1. Unplug unit.
2. Remove cabinet. Refer to Removing Cabinet on page 25.
3. Remove control panel. Refer to Removing Control Panel on page 62.
4. Disconnect the following:
A. Wiring Harness from nine or ten pin wiring harness connector
B. Wiring Harness from eight pin wiring harness connector
C. Transformer harness connector
ƽ WARNING
DO NOT remove sensor tubing from P.C. Board. Remove from tee fitting or
regulator ONLY. Damage to sensor assembly could occur. A faulty sensor may
result in improper oxygen delivery and harm to the user.
D. Pressure sensor tubing from product tank, not P.C. Board.
E. If applicable, Oxygen Sensor tubing from Regulator Fitting. Refer to Replacing
Regulator on page 58.