Tektronix VX1411A IntelliFrame VXIbus Mainframe, Instruction Manual, Page: 43 / 130

Getting Started
1–22
VX1411A IntelliFrame Mainframe Instruction Manual
Functional Check and Performance Verification
Use the information in this section to determine that the VX1411A IntelliFrame
Mainframe operates properly. The functional check and performance verification
consist of checking the power supply voltages. To check these voltages you will
need an extender card and a digital voltmeter. Refer to Troubleshooting
Procedures on page 4–16 for extender card and digital voltmeter ordering
information. No adjustments are required for the VX1411A mainframe.
Connect one lead of the voltmeter to the pins of the extender card that is inserted
into slot 0 of the mainframe. Connect the reference lead of the voltmeter to one
of the ground pins. Compare each voltage reading to the values listed in
Table 1–4.
Table 1–4: Power supply voltages P1 and P2 of the extender card
Pin Supply Acceptable voltage range
P1 – A32 +5 V 4.875 V to 5.25 V
P1 – A31 –12 V –12.6 V to –11.64 V
P2 – C32 –24 V –25.2 V to –23.28 V
P2 – A2 –2 V –2.1 V to –1.9 V
P1 – C31 +12 V 11.64 V to 12.6 V
P2 – C31 +24 V 23.28 V to 25.2 V
P2 – C4 –5.2 V –5.46 V to –5.044 V
P2 – A31 or B31 Logic Ground
If the voltages are within the specified ranges, your mainframe is functional.
NOTE
. Operators may perform exterior surface and fan filter cleaning as
described in the Maintenance chapter.
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