Kenwood TK-3148 Service Manual page 44

TK-3148
Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.]
Item Condition
6. DQT 1) Adj item [BAL]
Balance Adjust [∗∗∗]
Adjust LPF:3kHz
[Narrow] HPF:OFF
2) Adj item
[L BAL] ➞ [C BAL] ➞ [H BAL]
Adjust [∗∗∗]
PTT:ON
[Wide] 3) Adj item [w BAL]
Adjust [∗∗∗]
PTT:ON
7. Max DEV 1) Adj item [MAX]
Adjust Adjust [∗∗∗]
[Narrow] AG:1kHz / 150mV
Deviation meter filter
LPF:15kHz
HPF:OFF
2) Adj item
[L MAX] ➞ [C MAX] ➞ [H MAX]
Adjust [∗∗∗]
PTT:ON
[Wide] 3) Adj item [w MAX]
Adjust [∗∗∗]
PTT:ON
8. MIC [Panel Test Mode]
Sensitivity 1) CH-Sig: 1-1
Check AG:1kHz / Narrow 15mV
LPF:15kHz
PTT:ON
9. QT Deviation 1) Adj item [QT]
Adjust Adjust [∗∗∗]
LPF:3kHz
HPF:OFF
[Narrow] 2) Adj item
[L QT] ➞ [C QT] ➞ [H QT]
Adjust [∗∗∗]
PTT:ON
[Wide] 3) Adj item [w QT]
Adjust [∗∗∗]
PTT:ON
10.DQT 1) Adj item [DQT]
Devition Adjust [∗∗∗]
Adjust LPF:3kHz
HPF:OFF
[Narrow] 2) Adj item
[L DQT] ➞ [C DQT] ➞ [H DQT]
Adjust [∗∗∗]
PTT:ON
[Wide] 3) Adj item [w DQT]
Adjust [∗∗∗]
PTT:ON
44
ADJUSTMENT
Measurement
Test equipment
Power meter
Deviation meter
Oscilloscope
AG
AF VTVM
Wide 12mV
Unit Terminal Unit
Panel ANT Panel
Universal
connector
Panel ANT Panel
Universal
connector
Adjustment
Specifications/
Parts Method
Encoder Make the
knob demodulation
waves into
square waves
1.85kHz ±50Hz
(According to
the larger+,-)
4.20kHz
(According to
the larger+,-)
Check Narrow 1.0~2.2kHz
Wide 2.4~3.6kHz
Encoder 0.35kHz ±50Hz
knob
0.75kHz
0.35kHz
0.75kHz
Remark