Alinco DJ-493 Service Manual page 33

S-meter (1) Adjustment
S-meter (FULL)
Deviation
DTMF (1) Test (DJ-496)
DTMF (D) Test (DJ-496)
Tone 88.5Hz
DCS Code 225 Test
1. In the adjustment mode, select channel 7 by rotating the main tuning dial.
The S-meter will show a single circle ( § )
2. Enter "0"dBu(EMF) with the transceiver tester (SSG).
3. Press the F key. The transceiver beeps indicating the new setting has been
stored successfully.
1 . In the adjustment mode, select channel 8 by rotating the main tuning dial.
The S-meter will show all six circles ( f l i l i l )
2. Enter "+20"dBu (EMF) with the transceiver tester (SSG).
3. Press the ( ) key. The transceiver beeps indicating the new setting
F
has been stored successfully.
1. In the adjustment mode, select channel 9 by rotating the main tuning dial.
2. Input a 50mVrms, 1 KMz signal with your transceiver tester through the
external microphone jack.
3. With the tester, put the transceiver in the transmission mode.
4. Rotate the VR1 on the printed-curcuit board of the transceiver until the
deviation is set to 4.5KHz.
This function is only for checking the DTMF code, not adjusting it.
1. In the adjustment mode, select channel 10 by rotating the main tuning dial.
2. Press the ( PTT) key. DTMF code " 1" is automatically sent and you will
hear the monitoring tone from the speaker.
3. Check the deviation with the transceiver tester.
1. In the adjustment mode, select channel 11 by rotating the main tuning dial.
2. Press the ( P TT) key. DTMF code "D" is automatically sent and you will
hear the monitoring tone from the speaker.
3. Check the deviation with the transceiver tester.
1. In the adjustment mode, select channel 13 by rotating the main tuning dial.
2. Press the ( P TT) key. An 88.5Hz tone is automatically sent.
3. Rotate the VR2 on the printed-circuit board of the transceiver until the de­
viation is set to 0.9kHz (T) or 0.8kHz (E).
1. In the adjustment mode, select channel 15 by rotating the main tuning dial.
2. Press the ( p f T ) key. An 255 DCS code is automatically sent.
3. Check the deviation with the transceiver tester.
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