Tait TM8235, Service Manual

Page: 153 / 578

TM8100/TM8200 Service Manual Servicing Procedures 153
© Tait Electronics Limited June 2006
Task 5 —
Obtain the Details
of the Software
Feature Enabler
(SFE)
Use the programming application to obtain and record the details of any
software-enabled features (
Tools > Optional Features
).
For more information refer to the online help of the programming
application.
Task 6 —
Read the
Calibration File
Use the calibration application to read the calibration file and save it on the
test PC. If the calibration file cannot be read, set up a suitable default
calibration file and load it to the radio
Task 7 —
Check the
User Interface
Check the user interface as follows (This task does not apply to the blank
control head):
1. Use the programming application to activate backlighting, deactivate
silent and quiet modes, and view the programmed function keys,
channels and scan groups.
2. Turn on the radio, make sure that the volume control is not set to low,
and check the start-up sequence:
■
the LEDs light up red briefly
■
the speaker gives two short beeps
■
LCD and keypad backlighting activates
■
the LCD displays a power-up message then a channel number, or
an error message.
3. Check the following elements of the user interface:
■
volume control: With the graphical display, use CCTM command
1010 to read the volume potentiometer. The returned value
should be between 0 and 255.
■
LCD: Check visually or, with the graphical display, use CCTM
command
1006 1
to switch on all LCD elements. Power-cycle the
radio to reset the LCD to its original state.
■
PTT key: With the graphical display, while pressing the PTT key,
the transmit symbol
or should appear on the radio display
(unless transmit is inhibited on the selected channel).
■
scroll and selection keys: Scroll through all settings and observe the
radio display.
■
function keys: Check whether the programmed function is
activated.
■
keypad: With the graphical display, use CCTM command 1009 1
to turn on keypad notification. Check that each keypress returns
a different number. CCTM command
1009 1 turns keypad
notification off.
■
backlighting (if programmed): Any keypress should activate
backlighting.