Motorola APX 7000 Basic Service Manual page 56

Sec 1: 5-8
5.3.2 RF Test Mode
When the ASTRO APX 7000 radio is operating in its normal environment, the radio's microcomputer
controls the RF channel selection, transmitter key-up, and receiver muting, according to the
customer codeplug configuration. However, when the unit is on the bench for testing, alignment, or
repair, it must be removed from its normal environment via a special routine, called RF TEST MODE.
While in RF test mode:
• Each additional press of Side Button 2 advances to the next test channel. (Refer to
on page
after the button press (for example, five tones indicates channel 5).
• Pressing Side Button 1 scrolls through and accesses test environments shown in
page 1:5-5. The test environment is represented by the number of tones emitted by the radio
after the button press (for example, 11 tones indicate AST).
NOTE: Transmit into a load when keying a radio under test.
5.3.3 Control Top Test Mode
This test mode is used to verify proper operation of all radio buttons and switches if a failure is
suspected.
To perform the control top checks:
1. Press and hold the Top Button (Orange button); the LED lights red, and the radio beeps.
2. Release the Top Button; the radio beeps, indicating that the Top Button is in the open
position.
3. Press the Top Button again; the radio beeps, indicating that the Top Button is in the closed
position.
4. Rotate the Two-Position Concentric Switch; the radio beeps in each switch position.
5. Rotate the 16-Position Select Switch; the radio beeps in each switch position.
6. Cycle through the Three-Position A/B/C Switch; the radio beeps in each switch position.
7. Rotate the Volume Control; the radio beeps at each new volume setting.
8. Press the Top Side Button; the radio beeps.
9. Press Side Button 1; the radio beeps.
10. Press Side Button 2; the radio beeps.
1:5-5) The channel number is represented by the number of tones emitted by the radio
Performance Checks: Top-Display Version Radio Test Mode
Table 5-3
Table 5-4 on