16
PDC 2000/3000 Repair Manual
Testing&Adjustment
Block Diagram
The block diagram is the source code of the VI. It is constructed, free from syntactical
details of conventional programming, by selecting functional blocks from LabView menus.
The selected functional blocks are then connected with lines called wires to pass data from
one block to the next. These blocks include arithmetic functions, advanced acquisition and
analysis VI's, Sub VI components which call other VI's, and network and file I/O functions
that store or retrieve data in ASCII, binary, or spreadsheet formats.
Icon/Connector
The icon/connector is the calling interface. The icon is the graphical ID of the VI, and the
connector assigns controls and indicators to VI input and output terminals.
Test Software
The Test Software is an application program that was developed using LabView software
(National Instrument) and Concept VI Image Processing Library (Graftek). It is intended to
help the repair person diagnose PDC 2000/3000 digital camera malfunctions. Programs
developed using LabView are called virtual instruments (VI's).
The developed software consists of a Tester which invokes the necessary sub-VI's routines
that allow the repair person to check the PDC 2000/3000 digital camera.
When the Tester is invoked, it performs and verifies specified camera tests.
At the completion of the specified test, a report file is generated by the Tester indicating
whether or not the tested functions passed (
Pass
) or failed (
Fail
). It also list the current
parameters for the test functions so that repair person can verify the tested functions with the
PDC 2000/3000 digital camera specifications.
If the report file indicates that all or a particular function failed (
Fail
), the repair person can
compare the current parameters with the PDC 2000/3000 digital camera specifications to
determine how to bring the failed function/functions back into specification.
