Stratasys uPrint, Service Manual, Page: 25 / 383

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Figure 2-6: Test points and LEDs detail
Component Test Pt Description
UPS TP29 Power fail signal from external UPS
+5V REF TP24 Head T/C service reference
Door Switch TP15 State of the door (open or closed)
On/Off Switch TP14 State of power down switch
Power Enable TP8 Enables power to circuitry (normally high)
Model Toggle TP17 Toggle travel complete
Chamber Thermocouple TP28 Voltage corresponds to chamber temperature (10 mV=° C)
Support Thermocouple TP20 Voltage corresponds to support temperature
(10 mV=° C)
Model Thermocouple TP22 Voltage corresponds to model temperature
(10 mV=° C)
HD Thermostat TP25 Chamber and head thermostat (snap switches)
(+5 VDC if both switches closed)
Normal = tp17 lo, tp19 hi
ch thermostat fault=tp17 lo, tp19 lo.
Head TC Alarm TP26 High if head T/C not plugged in or open
Support Toggle TP16 Not used
Chamber TC Alarm TP27 High if chamber T/C not plugged in or open
X EOT TP18 X end of travel sensor (5 VDC), switches are wired normally closed (NC)
X Home TP19 X home sensor (5 VDC), switches are wired normally closed (NC)
Y EOT TP12 Y end of travel sensor (5 VDC), switches are wired normally closed (NC)
Y Home TP13 Y home sensor (5 VDC), switches are wired normally closed (NC)
Z EOT TP10 Z end of travel sensor (5 VDC), switches are wired normally closed (NC)
Z Home TP9 Z home sensor (5 VDC), switches are wired normally closed (NC)
Z Substrate TP23 Z substrate sensor (5 VDC)
HD Type A TP21 Not used
HD Type B TP30 Not used