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Section 3-Calibration
GND
TP2
VLV2
VLV1
NIBP PUMP
VLV3
+BAT
TP1
3. Connect the DMM reference lead to ground at TP2.
4. Adjust RP7 to the value indicated on the display module label.
Procedure 2
1. Turn on the Encore and position the display for easy viewing.
2. Adjust RP7 clockwise until the background illuminates.
3. Find the brightest background area on the display and view this area through a paper tube
approximately 2 inches in diameter (such as a paper towel or tissue paper tube) to shield the
area from ambient light.
4. Adjust RP7 counter-clockwise until the viewed area fades to black.
5. Reposition the tube to view the brightest area (now dim) and simultaneously a lighted area
(pixels on). Adjust RP7 clockwise until the background area just begins to illuminate.
Main Power Supply Adjustments
The following procedures assume you are continuing from the recharger board calibration. If not,
refer to the setup procedures provided at the beginning of this section.
1. Turn off the monitor.
2. Remove the metal shield from the analog board. (Note the two different screw sizes; refer to
Section 5 for instructions, if necessary.)
Welch Allyn
OVR SET
TP4
PT2
RP5
RP3
PIN 1
P12
CATHODE
P10
Main Power Supply Adjustments
TP3
Q1
RP1
RP7
T3
D33
P11
0696-08
51
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