Recharger Supply Adjustments - Welch Allyn PROPAQ CS Service Manual

46 Calibration

Recharger supply adjustments

1. Verify that the monitor power switch is off.
2. Disconnect the battery connector from P12 on the Recharger Board (see below).
3. Disconnect P8 from the Digital Board (see below).
Figure 1. Disassembled front chassis and disconnection locations
P12
4. Connect the 4.9Ω test load (see
the battery connector (P12).
5. Set the power supply output to 15.0 V dc.
6. Attach the dc power adapter cable to the variable dc power supply as shown in the
figure below.
RIBBED (+)
7 . Connect the adapter cable to the monitor's dc input jack.
Caution Adjustment of RP3 in
which, if misadjusted, can cause fuse F1 (on the right side panel) to open. If you
suspect that RP3 has been misadjusted, turn it fully clockwise before connecting
power to the dc input jack on the Propaq CS monitor.
SMOOTH (-)
Welch Allyn Propaq CS Vital Signs Monitor
"Manufacturable test equipment"
step 12 on page 47 sets an overvoltage limit
0696-02
P8
on page 135) to