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Display board service operations, Output voltage testing – Labconco PURICARE Procedure Station Models 34812xx User Manual

Page 145

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Page 145 of 197

Output Voltage Testing

NOTE: Use caution when measuring test voltages to avoid short
circuits.

There are 4 test points to measure the output of the Power and Relay boards,
numbered TP1-TP4, as shown in Figure 9-6.

Figure 9-6


Test Point 3 (TP3)

Test Point 1 (TP1)

Test Point 2 (TP2)

Test Point 4 (TP4)





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Under normal operation, the following voltages should be read:

TP1 – Ground
TP2 - +12 +/- 0.48 VDC
TP3 - +5 +/- 0.20 VDC
TP4 - + 21-24 VDC

Display Board Service Operations


Display Board Diagnostics is addressed in the section on Touchpad Test Operations.