Level Diagram - Kenwood TS-2000 Service Manual

14.201MHz 69.085MHz
–113dBm –112dBm –96dBm –87dBm
–112.5dBm –94dBm
Q7 Q9
RF
Q12
BPF
ANT
CN1
L51
HFRX
Q8 Q10
TX-RX 2 UNIT (X57-606 A/11)
VHF : 144.2MHz, UHF : 438.2MHz
–113dBm –104dBm –109dBm
L23 L47
Q15
L34 Q24
L9 L55
L14
VHF
D48
CN1
MAIN
14RX VHF
SUB
VHF
–108dBm
L44
L28 Q22
L52
L15
D46
–113dBm –99dBm –103dBm
L108~111
L116~119
Q14
L137 Q21
L8 L133
L12
UHF
D49
CN2
MAIN
43RX UHF
SUB
–103dBm
UHF
L29 Q25 L50
L13
D91
TX-RX 3 UNIT (X57-607)
1270.4MHz
–113dBm –96dBm –96dBm –92dBm –83dBm –87dBm –90dBm –72dBm
Q10
Q12 L33 Q11 L30
12ANT
CN4
L26,28,29
TS-2000/X
LEVEL DIAGRAM (RX SECTION)
TX-RX 1 UNIT (X57-605 A/9)
10.695MHz
–87dBm –78dBm
–83dBm –73.5dBm –67.5dBm
Q19
XF1
Q18 Q25
XF2
L71
L68
CN10 CN11
Q20
RIF 12RIF
41.895MHz 10.695MHz
–93dBm –100dBm –68dBm –67dBm
Q42
Q38
IC4 Q61
XF1
2 4
3 5
L80
L86
Q43
58.525MHz AF 1kHz
–94dBm –102dBm –83dBm 0.4Vp-p 1.9Vp-p
IC5 XF2
2 4
16 9
3 5
6 7
Q37
IC7 : FM IC9
135.495MHz 10.695MHz
–68dBm –90dBm –66dBm
Q7
Q9
Q303
L25
XF1
L22
Q8
TS-2000/X
455kHz
–71dBm –41.5dBm
–76dBm –65dBm –53dBm –40dBm
Q700
CF1
XF5 CF2
Q38
XF6 CF3 IC18 CF4
L614
L613
Q701
–75dBm (0.4Vp-p)
IC1 : FM
5 9
(455kHz)
CN10
RIF
Measurement condition (TX-RX 1 unit)
Frequency : 14.2MHz
PRE AMP : ON
ANT input : –113dBm/0.501µV
AF output : 0.63V/8Ω, 1kHz
Mode : USB
The values in parentheses (
CN9
SDET
Input –113dBm from the antenna, set AF VR so that AF output is 0.63V, and measure the signal level at each part.
The AF section is measured with an oscilloscope and the other parts are measered with an RF voltmeter.
Measurement condition (TX-RX 2 unit)
Frequency : 144.0MHz (VHF), 438.2MHz (UHF)
PRE AMP : ON
ANT input : –113dBm/0.501µV
AF output : 0.63V/8Ω, 1kHz
Mode : USB (Main), FM (Sub)
Input –113dBm from CN1 and CN2, and measure the signal level at each part.
All wires, except CN1 and CN2, are connected during measurement.
The AF section is measured with an oscilloscope and the other parts are measered with an RF voltmeter.
Measurement condition (TX-RX 3 unit)
Frequency : 1270.4MHz
ANT input : –113dBm/0.501µV
Mode : USB
Input –113dBm from the 1.2GHz antenna connector and measure the signal level at each part.
Use an RF voltmeter.
CN5
12RIF
229
CONTROL UNIT (X53-391)
RIF 12kHz
–46dBm
–53.5dBm
–41.5dBm –47dBm –45.5dBm (0.68Vp-p)
IC518
IC3 Q42
IC525 CODEC
MDET
2
14 6 1
SDET
Q709 12
(2.0Vp-p)
IC2
6 7
(AF 1kHz)
) are those in FM mode.
TX-RX 1 UNIT
(X57-605 A/9)
AF 1kHz
45mVp-p
0.16Vp-p 1.9Vp-p
IC522
IC515 IC516 CODEC IC527 IC9
DSP2 DSP1 19 SP
6 7 1 6
0.63V
8Ω
230