Kenwood TK-3148 Service Manual page 42

TK-3148
Item Condition
6. DQT 1) Adj item [BAL]
Balance Adjust [ *** ]
Adjust Deviation meter fi lter
[Narrow] LPF: 3kHz
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 fi lter
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
Wide 12mV
Deviation meter fi lter
LPF: 15kHz
PTT: ON
9. QT 1) Adj item [QT]
Deviation Adjust [ *** ]
Adjust Deviation meter fi lter
[Narrow] LPF: 3kHz
HPF: OFF
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 Deviation meter fi lter
[Narrow] LPF: 3kHz
HPF: OFF
2) Adj item
[L DQT] → [C DQT] → [H DQT]
Adjust [ *** ]
PTT:ON
[Wide] 3) Adj item [w DQT]
Adjust [ *** ]
PTT: ON
42
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power Panel ANT Panel
meter
Deviation Universal
meter connector
Oscilloscope
AG
AF VTVM
Panel
Adjustment
Parts Method
Encoder Make the demodu-
knob lation 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
Specifi cations / Remarks