HP Designjet 3D Service Manual page 33

Test Pt. Description
Component
X EOT TP18
X Home TP19
Y EOT TP12
Y Home TP13
Z EOT TP10
Z Home TP9
Z Substrate TP23
HD Type A TP21
HD Type B TP30
Figure 7: Voltage test points and LEDs detail
Component Test Pt. Description
+ 5 VDC TP3
+12 VDC TP4
+12 VDC SW TP5
+24 VDC TP6
+24 VDC SW TP7
X end of travel sensor (5 VDC), switches are
wired normally closed (NC)
X home sensor (5 VDC), switches are wired
normally closed (NC)
Y end of travel sensor (5 VDC), switches are
wired normally closed (NC)
Y home sensor (5 VDC), switches are wired
normally closed (NC)
Z end of travel sensor (5 VDC), switches are
wired normally closed (NC)
Z home sensor (5 VDC), switches are wired
normally closed (NC)
Z substrate sensor (5 VDC)
Not used
Not used
+ 5VDC is present
+ 12VDC is present
+ 12VDC Switching is present
+ 24VDC is present
+ 24VDC Switching is present
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