Trackmaster FVX325, Руководство по обслуживанию на месте

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TRACKMASTER
August, 2006 FVX, TMX Series Service Manual
10-1
Production Qualification Description
FG302 Smart Power Supply
The following is a description of the procedures that are followed to qualify every FG0302
production unit. In addition to these procedures, our quality department does a visual
inspection on a sample lot of every work order shipment of not less than 5%. In addition, our
primary customer, Full Vision, performs a 24 hour burn-in on every unit as assembled in the
finished product.
Test Fixture
The test fixture for FG0302 includes an independent microcontroller that communicates
with a PC running the test software and recording data. During the test, the PC also
communicates directly with the device under test (dut).
Test Fixture Connections
The test fixture includes an input for measuring the dc voltage output of the dut with an 8
bit a2d converter. This input is attached to the kill switch connection on the dut (ref. J4,
J5 on FG0302).
A single relay is included on the test fixture to switch AC Hot to the dut JP4 pins 3 and 4.
The test fixture provides AC Common to pins 1 and 2 of JP4 on the dut.
Two separate inputs are provided for measuring the presence of AC Hot on the dut
connector JP3 pins 2 or 3 as referenced to AC Common provided from the dut at JP3 p1.
A test fixture output is provided to excite the elevation input of the dut at connector J1.
A test fixture output is provided to excite the speed sensor input at connector J2.
The test fixture provides an output to the dut's J2 pin 2 for the purpose of testing the dut's
output on J2 pin 3, which is connected to a test fixture input. This is for testing the belt
enable optocoupler.
A +12VDC supply is connected to J2 pin 1 on the dut to provide the supply voltage for
testing the speed control output.
An 8 bit a2d converter input is connected to the pwm speed reference output from the dut
at J2 pin 4 with respect to J2 pin 5.
The DB9 connector J8 on the DUT is connected to a serial port on the PC directing the
test.
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