Rf Test Mode (5-Tone Radios) - Motorola Commercial Series Basic Service Manual

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RF Test Mode (5-Tone Radios)

When the radio is operating in its normal environment, it is not possible to test all individual aspects
of the transmitter and receiver performance. Therefore a special "test mode" is used to allow the
service technician to perform certain functional tests on the product. A control head fuctional test
mode is also available.
To enter test mode (CM360):
1. Turn the radio on.
2. Within less than one second of the power-up beep, press button P2, five times in succession.
3. Six characters appear on the 8-character display, 'TT XX CC', where 'TT' indicates the test
environment (Table 3.2), 'XX' indicates the channel number 1-14 (Table 3.4), and 'CC'
indicates the channel spacing (Table 3.3). Test frequencies (channels) may be changed with
use of the Up-Down button. Each additional press of P2 will scroll through the remaining
channel spacings supported.
4. Pressing P1 scrolls through and accesses test environments as shown in Table 3-2.
5. Pressing P2 for at least one second switches the radio to the control head test mode. 'LCD
Test' appears on the display.
6. Pressing P1 causes the radio to turn on all segments of the first character. A second P1 press
turns on all the segments of the second character and so on until all segments of all eight
characters are illuminated.
7. Pressing P1 at the end of the LCD test activates the 'Icon & LED Test'. The next P1 press
turns on the first icon. Successive presses of P1 cycle through all icons and finally the three
LEDs.
8. Pressing P1 at the end of the 'Icon & LED Test' activates the button test. When a button is
pressed a single beep is heard and another beep on each release of all four P buttons plus
the Up-Down button.
9. Pressing P2 for at least one second in the control head test mode causes the radio to return
to the RF test mode.
Note: The radio powers up on the last used test state i.e. the last used test environment and
channel spacing, but always starts at channel 1.
To enter test mode (CM340):
1. Turn the radio on.
2. Within less than one second of the power-up beep, press button P2, five times in succession.
3. The three LEDs will turn on and the single character segment display will indicate channel 1.
As the display can only show 1 to 8, channels 1 to 7 are repeated with a dot on the display to
indicate high power. Channels 1 to 7 with no dot represent low power (Table 3.4). An audio
alert will sound to indicate the test environment.
4. Pressing P1 will scroll through the other 12 test environments with its associated audio beep.
(Table 3.2)
5. Press P2 to scroll through the three supported channel spacings channel spacings supported
(Table 3.3)
6. Pressing P2 for at least one second switches radio to the control head test mode. A beep will
sound and the segment goes blank.
7. Pressing P1 will cycle scroll through the segment test, then the LED test and finally the HI/LO
power segment indicator; a high pitched beep will also sound as P1 is pressed.
TRANSCEIVER PERFORMANCE TESTING