FlexRadio Systems FLEX-1500, Service Manual

Page: 13 / 62

Revision 1.0
13
Copyright FlexRadio Systems, 2010-2011
If there is any question as to whether the quiescent bias currents are properly set on the
RFPA power transistors, they should be set prior to performing the PA calibration tests.
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Plug the BNC-Coaxial cable from the PowerMaster Watt meter into the BNC connector
on the RFPA.
Plug the USB cable from the computer into the USB connector on the front edge of the
PTRX board.
Plug the loop-back test cable into the FlexWire DB-9 connector on the rear card edge,
and the Key and Mike connectors into the connectors on the front card edge.
Plug the +13.8 Volt power connector into the power connector on the RFPA.
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Turn on the power switch on the PTRX board. The Blue LED should light within two
seconds.
Open PowerSDR 2.0
Press "Start"
Note that the program is running and a moving Panadaptor noise floor appears.
Bring up the production test screen by pressing Control-Shift-P.
Check that the appropriate Com Port for the PowerMaster RF Power Meter is indicated.
The fully automated sequence of tests may be started by pressing the “Test All” at the
bottom of the test screen, or the individual tests may be runfor diagnostic purposes, by
pressing their individual buttons.
If all tests are passed, as indicated by all green buttons, then radio level testing of the
assembled radio is complete.
Close Production Test window, stop PowerSDR, close PowerSDR, turn off power switch
on PTRX and remove cables from Radio Assembly.
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