Computer-Controlled Test Mode (Cctm); Terminal Program For Cctm; Invoking Cctm - Tait TM9100 Service Manual

4.8

Computer-Controlled Test Mode (CCTM)

Terminal Program
for CCTM

Invoking CCTM

112 General Information
The servicing procedures require a radio to be placed in the computer-
controlled test mode. In this mode CCTM commands can be entered at
the test PC. These commands are then relayed via the test unit to the
radio. Certain CCTM commands cause the radio to carry out particular
functions; others read particular settings and parameter values in the
radio. The CCTM commands of use in servicing radios are listed in
Table 4.3 to Table 4.7, grouped according to category.
Use the calibration application to place the radio in CCTM. To do this,
run the calibration application, select Tools > CCTM, and click the CCTM
Mode button. For more information, refer to the online help of the
calibration application.
You can also use the HyperTerminal utility which is supplied with
Microsoft Windows. As a preliminary, first select the settings for the
communications port as follows:
1. Open the terminal program. (In the case of HyperTerminal, click
Start > Programs > Accessories > Communications > HyperTermi-
nal.)
2. In the terminal program first select the COM port to which the
radio is connected. Then select the following settings for the port:
bits per second : 19 200
data bits
parity
stop bits
flow control
3. Click the OK button (or equivalent).
4. Save the file with the port settings under a suitable name.
For subsequent sessions requiring the terminal program, open this
file.
Using the terminal program, place the radio in CCTM as follows:
1. Enter the character ^ to reset the radio.
As soon as the radio is reset, the letter v is displayed. (If an
2.
uppercase letter V appears, this implies a fault.)
Immediately the letter v is displayed, enter the character%.
3.
(The character% must be entered within half a second of the letter
v appearing.)
If the character% is accepted, the character – is displayed in
4.
response, and the message Test Mode appears on the radio display.
: 8
: none
: 1
: none
© Tait Electronics Limited August 2005
TM9100 Service Manual