Kenwood TK-372G Service Manual page 38

TK-372G
Item Condition
6. Low Power [Panel Test Mode]
Check 1) CH-Sig:1-1
Set low power (Push [2])
PTT:ON
2) CH-Sig:2-1
PTT:ON
3) CH-Sig:3-1
PTT:ON
7. Max DEV 1) Adj item [MAX]
Adjust Adjust [∗∗∗]
[Wide] AG:1kHz / 150mV
Dev meter filter
LPF:15kHz
HPF:OFF
2) Adj item
.
[ M A X]
Adjust [∗∗∗]
PTT:ON
[Narrow] 1) Adj item [MAX
Adjust [∗∗∗]
PTT:ON
8. MIC [Panel Test Mode]
Sensitivity 1) CH-Sig:1-1
Check AG:1kHz / 15mV
LPF:15kHz
PTT:ON
9. QT TCXO Adj item [X Q T]
Balance Adjust [200] : K, K2
Adjust [229] : K3, K4
Wide, Narrow
10.DQT TCXO Adj item [X D Q T]
Balance Adjust [150] : K, K2
Adjust [172] : K3, K4
Wide, Narrow
11.DQT VCO 1) Adj item [VDQT]
Balance Adjust [∗∗∗]
Adjust LPF:3kHz
[Wide] HPF:OFF
2) Adj item
.
[V D Q T]
Adjust [∗∗∗]
PTT:ON
[Narrow] 3) Adj item [V D Q T
Adjust [∗∗∗]
PTT:ON
12.QT VCO Adj item [∗∗∗]
Balance
[VDQT] x
(K, M, K2, M2)
[VDQT] x
(K3, M3, K4, M4)
38
ADJUSTMENT
Test equipment
Power meter
Dev meter
Oscilloscope
AG
AF VTVM
. . . . . . . .
[ M A X] [ M A X ]
.
]
Power meter
Dev meter
Oscilloscope
AG
AF VTVM
. . . . . . . .
[V D Q T] [V D Q T ]
.
] Power meter
Dev meter
Oscilloscope
200
=[VQT]
150
229
=[VQT]
172
Measurement
Terminal
ANT Encoder
SP/MIC connector knob
ANT Encoder
SP/MIC connector knob
Adjustment
Parts Method
Check
4.2kHz
(According to
the larger +,-)
2.1kHz
(According to
the larger+,-)
Check
Make the
demodulation
waves into
square waves.
Specifications/
Remark
0.5~1.5W
1.2A or less
±50Hz
2.2~3.6kHz