Filter
Top Products
4-2
4.2 Diagnostic Test
This test checks the transceiver for proper operation. It should be conducted regularly to ensure
proper operation. If a DSC or NBDP terminal is connected, the test should be conducted to-
gether with them. Before starting the test, set the RF GAIN control to maximum (fully clock-
wise).
1. While pressing and holding down the [TX] key, turn on the power. All LCD segments ap-
pear.
2. Release the [TX] key. The FS-1503 starts diagnostics and the following indications appear:
R
T
T
If a fault is detected, “no Good” appears instead of “Good” and the associated indication
blinks after completion of this test.
3. Turn off the transceiver on completion of tests. Turn it on again for normal operation.
Receiver section tested successfully.
Transmitter Exciter stage is tested successfully.
Transmitter Power Amplifier stage and Antenna
Coupler are tested successfully.Test available
with dummy load and by setting system set-
ting 9917 to 1.
Figure 4-1 Sequence of diagnostic test