TK-3148
42
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
6. DQT
Balance
Adjust
[Narrow]
1) Adj item [BAL]
Adjust
[***]
Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item
[L
BAL]
→
[C BAL]
→
[H BAL]
Adjust
[***]
PTT:
ON
Power
meter
Deviation
meter
Oscilloscope
AG
AF VTVM
Panel
ANT
Universal
connector
Panel
Encoder
knob
Make the demodu-
lation waves into
square waves
[Wide]
3) Adj item [w BAL]
Adjust
[***]
PTT:
ON
7. Max DEV
Adjust
[Narrow]
1) Adj item [MAX]
Adjust
[***]
AG:
1kHz/150mV
Deviation meter fi lter
LPF: 15kHz
HPF: OFF
2) Adj item
[L MAX]
→
[C MAX]
→
[H MAX]
Adjust
[***]
PTT:
ON
1.85kHz
(According to the
,-)
±50Hz
[Wide]
3) Adj item [w MAX]
Adjust
[***]
PTT:
ON
4.20kHz
(According to the
,-)
8. MIC
Sensitivity
Check
[Panel Test Mode]
1) CH-Sig: 1-1
AG: 1kHz/Narrow 15mV
Wide 12mV
Deviation meter fi lter
LPF: 15kHz
PTT:
ON
Check
Narrow 1.0~2.2kHz
Wide 2.4~3.6kHz
9. QT
Deviation
Adjust
[Narrow]
1) Adj item [QT]
Adjust
[***]
Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item
[L
QT]
→
[C QT]
→
[H QT]
Adjust
[***]
PTT:
ON
Panel
Encoder
knob
0.35kHz
±50Hz
[Wide]
3) Adj item [w QT]
Adjust
[***]
PTT:
ON
0.75kHz
10. DQT
Devition
Adjust
[Narrow]
1) Adj item [DQT]
Adjust
[***]
Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item
[L DQT]
→
[C DQT]
→
[H DQT]
Adjust
[***]
PTT:ON
0.35kHz
[Wide]
3) Adj item [w DQT]
Adjust
[***]
PTT:
ON
0.75kHz