Self Test; Transceiver Unit - Furuno FS-1562 Manual

5. Self Test

5.1 Transceiver unit

This test checks the transceiver for proper operation. It should be conducted regularly to
ensure proper operation. Before starting the test, set the RF GAIN control knob to
maximum (fully clockwise).
Procedure
1. While pressing and holding down the [CURSOR] key, turn on the power. All LCD
segments appear.
2. Release the hand from the [CURSOR] key. The FS-75/2550 starts self-test and the
display shows the following indications in order.
Condition:
TLX mode
13.5MHz
AGC ON
Condition:
TLX mode
Tone 1700Hz
3 MHz
PA OFF
Condition:
TLX mode
Tone 1700Hz
3 MHz 20W/Full power
When the CPU is detected unlock signal from SYN circuit, frequency indication
blinking.
A2-11
FS-75/2550