Motorola CDM1250, Basic Service Manual

Page: 37 / 92

Transceiver Performance Testing 3-3
To enter test mode:
1. Turn the radio on.
2. Within ten seconds after the self test is complete, press button P2 , five times in succession.
3. After “CSQ CHXX SP25” appears in the display, the radio is on channel XX*, carrier squelch
mode, 25 kHz channel spacing.
4. Each additional press of P2 scrolls through to the next channel spacing and a corresponding set
of tones are sounded.
5. Pressing P1 scrolls through and accesses test environments as shown in Table 3-2.
6. Pressing P2 for three seconds switches the radio to the control head test mode. ‘ LCD Test ’
appears on the display.
7. Pressing P1 causes the radio to turn on all the dots of the first character. Another P1 press turns
on all the dots of the next character and so on until the last character (character 14).
8. Pressing P1 at the end of the LCD test activates the ‘Icon Test’. The next P1 press turns on the
first icon.
9. Pressing P1 at the end of the Icon test activates the button test. Pressing any button (except P1)
or any keypad button during the LCD test or Icon test immediately activates this test.
10. Pressing P2 for 3 seconds in the control head test mode causes the radio to return to the RF test
mode.
*XX = channel number (01 - 14)