Tait TB7100, Service Manual

Page: 112 / 370

114 Servicing Procedures TB7100 Service Manual
© Tait Electronics Limited October 2005
Task 4 —
Read the
Programming File
Given that the base station powers up, the next task is to use the
programming application to read the programming files of the receiver and
transmitter modules and save the customer data. If the programming file can
be read but is corrupted, upload a default file.
Note
Many problems can be caused by the customer incorrectly
programming the base station. Once the customer’s programming
file has been read and saved load a default file that is known to
work for the testing. If the base station works correctly with the
default file then load the customer’s file and retest. If it no longer
works base station has been programmed incorrectly.
1. Switch the
T
X
/R
X
switch to the
R
X
position and read the programming
file.
2. If the programming file can be read, save a copy on the test PC before
going to
Step 3 .
3. Switch the
T
X
/R
X
switch to the
T
X
position and read the programming
file.
4. If the programming file can be read, save a copy on the test PC before
going to
Step 5 .
5. If both programming files could be read, load default test files to the
receiver and transmitter modules and go to
Task 5 .
6. If none of the programming files could be read, go to Step 8 .
7. If one of the programming files could not be read, go to Step 11
None of the
Modules Could be
Read
8. Switch the
T
X
/R
X
switch to the
R
X
position.
9. Check whether:
■
the base station is connected to the correct serial port of the test
PC,
■
the programming application is set-up correctly. Refer to the
troubleshooting section of the online help.
10. If the programming file can now be read, return to Step 1 . If not, go
to Step 11 .
One of the Modules
Could Not be Read
11. Switch the
T
X
/R
X
switch to the correct position.
12. Cycle the power to the base station and immediately attempt to read
the file. First cycling the power is essential if the module is
programmed to power up in transparent-data mode (both 1200 baud
FFSK and Tait high-speed data) and if the selected data port is the
microphone connector. Using the microphone as the transparent-
mode data port is not a valid base station configuration.
13. If the module can now be read, reprogram the data port to Aux and
return to
Step 1 (receiver) or Step 3 (transmitter). If not, go to
Step 14 .