Test Equipment Setup; Connect Equipment; Settings For Receive Tests; Settings For Transmit Tests - Tait TM9100 Service Manual

4.4

Test Equipment Setup

Introduction

Connect Equipment

Settings for
Receive Tests
Settings for
Transmit Tests
TM9100 Service Manual
© Tait Electronics Limited August 2005
This section covers the setting up of the test equipment for servicing the
radios, as well as related aspects:
setting up of test equipment, including test unit
basic programming and calibration tasks
invoking CCTM (computer-controlled test mode)
summary tables of CCTM commands and error codes
visual and audible indications provided by radio
The last-named aspect applies to control heads with UI, and concerns
the LEDs and LCD screen, and the various alerts and confidence
STATUS
tones emitted from the speaker.
Connect the test equipment to the radio as shown in
test unit, cables and adaptor of the service kit. Refer to
Equipment and Spares" on page 100
service kit. The test unit is described in
page 477.
For testing receive and transmit functions respectively, the switches of the
test unit must be set as described below. (When programming or
calibrating radios the switches have no effect, although it is good practice
switch to "R
to set the
MODE
For receive tests set the switches on the test unit as follows:
: "O
switch
HOOK FF
: "R "
switch
MODE X
switch : "O
AUDIO IN FF
switch: "S
AUDIO OUT PEAKER
In the last-named case, with the switch in the "S
received audio is output from the test unit's speaker. In the "L
position a 16Ω load is switched into the circuit in place of the test unit's
speaker. Note, however, that the
radio's speaker.
For transmit tests set the switches on the test unit as follows:
: "O
switch
HOOK FF
: "R " initially
switch
MODE X
switch : "M
AUDIO IN IC
switch: (immaterial)
AUDIO OUT
When ready to transmit, set the
This switch functions in the same way as the PTT switch on the
microphone.
for details of the test equipment and
"TOPA-SV-024 Test Unit" on
".)
X
H "
OOK
"
" or "L "
OAD
PEAKER
switch has no effect on the
AUDIO OUT
H "
OOK
A "
UDIO
switch to the "T
MODE
General Information
Figure 4.2. Use the
"Tools,
" position, the
"
OAD
/PTT" position.
X
105