Kenwood TK-3148 Service Manual page 46

TK-3148
Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.]
Item Condition
11. DTMF 1) Adj item [DTMF]
Deviation Adjust [∗∗∗]
Adjust LPF:15kHz
[Narrow] HPF:OFF
PTT:ON
[Wide] 2) Adj item [w DTMF]
Adjust [∗∗∗]
PTT:ON
12.FFSK 1) Adj item [FFSK]
Deviation Adjust [∗∗∗]
Adjust LPF:15kHz
[Narrow] HPF:OFF
PTT:ON
[Wide] 2) Adj item [w FFSK]
Adjust [∗∗∗]
PTT:ON
13.TONE 1) Adj item [TONE]
Deviation Adjust [∗∗∗]
Adjust LPF:15kHz
[Narrow] HPF:OFF
PTT:ON
[Wide] 2) Adj item [w TONE]
Adjust [∗∗∗]
PTT:ON
14.BATT 1) Adj item [BATT]
Detection Adjust [∗∗∗]
Writing PTT:ON
.
15.BATT [Panel Test Mode]
Detection 1) CH-Sig:1-1
Check BATT terminal voltage:6.5V
PTT:ON
2) BATT terminal voltage:5.7V
PTT:ON
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ADJUSTMENT
Measurement
Test equipment Unit Terminal
Power meter Panel ANT
Deviation meter Universal
Oscilloscope connector
AG
AF VTVM
Power meter ANT
DVM BATT
terminal
Adjustment
Unit Parts Method
Panel Encoder 1.25kHz
knob
2.5kHz
1.5kHz
3.0kHz
1.5kHz
3.0kHz
After pressing BATT terminal
the PTT switch, voltage:6.2V
confirm that
one predeter-
mined numeric
in the range
of 1 to 256
appears and
then press the
[B] key. That
number will be
stored in memory
Check
Specifications/
Remark
±0.1kHz
±0.1kHz
±0.1kHz
±0.1kHz
±0.1kHz
±0.1kHz
No blinking of LED
Blinking of LED