Level Diagram (Tx Section) - Kenwood TS-2000 Service Manual

CONTROL UNIT (X53-391)
AF 1kHz TIF 12kHz
100mVp-p
5mV 112mVp-p 81mVp-p
IC515
IC535 IC529 IC516 IC524
MIC DSP 6 1
1
IC523 IC518 IC6
Measurement condition (TX-RX 1 unit)
Frequency : 14.2MHz
MIC input : 1kHz/5mV
Output power : 100W (HF, VHF), 50W (UHF)
MIC level : ALC zone maximum
Audio frequency section is measured by the AF voltmeter or oscilloscope.
Radio frequency section is measured by the RF voltmeter or oscilloscope.
The value in parentheses ( ) for the fi nal unit (X45-384 B/2) is a reference value.
Measurement condition (TX-RX 2 unit)
Frequency : 144MHz (VHF), 438MHz (UHF)
MIC input : 1kHz/5mV
Output power : 100W (VHF), 50W (UHF)
MIC level : ALC zone maximum
Measure the power using the RF voltmeter.
Measurement condition (TX-RX 3 unit)
Frequency : 1270MHz
MIC input : 1kHz/5mV
Output power : 10W
MIC level : ALC zone maximum
Measure the voltage or power using the oscilscope or spectrum analyzer.
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TS-2000/B2000/2000X
TS-2000S/2000V/2000SX/2000VX

LEVEL DIAGRAM (TX SECTION)

TX-RX 1 UNIT (X57-605 A/10)
10.595MHz
100mVp-p 19mVp-p 240mVp-p
41mVp-p 130mVp-p 30mVp-p
Q49
Q54
D84
Q711
XF9
L105
L109 L108
10.595MHz
–20.6dBm
Q46
CN18
TIF
L91
Q47
10.595MHz
70mVp-p
CN5
12TIF
Q304
TS-2000/B2000/2000X
TS-2000S/2000V/2000SX/2000VX
68.985MHz
45mVp-p 280mVp-p 440mVp-p
78mVp-p 50mVp-p 91mVp-p
Q46 Q44
L98
Q48 L95
D82
L102 L96
Q47 Q45
CN11 CN49
12TIF TIF
TX-RX 2 UNIT (X57-606 A/11)
41.795MHz 144MHz or 438MHz
–5dBm –16dBm –5dBm –20dBm 0dBm –15dBm
Q17 Q26 IC3
XF3 D54
1
–17dBm –7dBm –13dBm
Q20
Q18
TX-RX 3 UNIT (X57-607)
135.395MHz
600mVp-p 1.2Vp-p
750mVp-p 370mVp-p 480mVp-p
Q1
Q3
L320
L5 L321
L2
XF2
Q2
70
FINAL UNIT (X45-384 A/2)
14.2MHz
450mVp-p 430mVp-p
140mVp-p
Q43 Q3 Q5 Q6
CN14 CN1
HFTX HFTX
VHF
CN2
14TX
HPF
FINAL UNIT (X45-384 B/2)
2dBm 0.3W
CN4
14TX
CN3 Q901
43TX
5
CN901
43TX
+2.0dBm
1270.2MHz
400mVp-p
210mVp-p 0.5mW
IC1 Q5
MIX 1 4
L7,8 L10 L12
L9 D1
FILTER UNIT
(X51-318)
35Vp-p
230Vp-p
Q7
HF/
CN4
50MHz
HFPIN
L16 HF/50MHz
ANT
50W
CN4
HFPO
L14
Q8
36Vp-p 250Vp-p
Q101
14PIN VHF
ANT
100W
CN803
14PO
Q102
6W 60W
Q903 Q905
UHF
ANT
50W
4mW 63mW (13W)
Q6 IC3
12ANT
1 4
10W