19
TS-2000/X
R439, ALC meter
D85
8C
Q49
Q711
10.595MHz
Q48
VOUT4
VIN4
VOUT1
VIN1
IC13
(AOUT)
HF ALC
L119
VSF
43VSF
12VSF
TX-RX 1 (X57-605 A/9)
D123
D119
D121
X45-360
(A/2)
X45-360
(B/2)
X57-607
VSR
VSR
43VSR
12VSR
D124
D120
D122
X45-360
(A/2)
X45-360
(B/2)
X57-607
IC17 (Q6),
R509
50ALC
14ALC
43ALC
12ALC
7
8
3
5
J7
EXT. CONT
J4
REMOTE
(6 pin)
14S
Q73
Q74
Q76
Q78
Q79
D82
D84
D105
D108
D111
D114
D107
D106
1
2
11
12
IC14
D113
D109
D110
Q77
Q75
Fig. 13
VHF/UHF Band Transmitter Circuit (RF~IF)
The TIF (10.595MHz) signal input from the TX-RX1 unit
(X57-605) first enters the mixers (Q46 and 47). The
31.2MHz signal from the PLL passes through the RF ampli-
fier (Q50), enters the mixer as a local oscillator to output the
41.795MHz IF through both the signals. It passes through
the 41.795MHz MCF (XF3) and enters the wideband diode
mixer (D54) in the next stage, and upper hetero to a VHF/
UHF band output signal. The local oscillator TXLO1 of the
mixer is on a common line for both VHF and UHF band local
oscillators, and the local oscillator signal is amplified by the
VHF and UHF band broadband amplifier (Q34) and supplied
to the mixer.
The signal converted to the VHF/UHF band is divided into
a VHF band path and a UHF band path after it is output from
the mixer.
X57-605
D54
D52
XF3 Q46,47
Q34
Q50
TXLO1
418.205MHz
LO31
31.2MHz
41.795
MHz
VHF
UHF
L48,158
FILTER
L121~124,140
L128,129
Q17
TX-RX 2 (X57-606 A/11)
Q26
Q20
Q18
TIF
10.595
MHz
IC3
X45-360
(A/2)
X45-360
(B/2)
VHF
UHF
D21
D19
D7
D6
D33,100
D42,47,51
TBPF
DAC
IC5
The VHF band signal passes through a filter and a trap
and is amplified in the 2-stage RF amplifiers (Q20, Q18), and
the resulting signal goes to the wideband amplifier (IC3)
common to the VHF and UHF bands.
The UHF band signal is amplified by the RF amplifier
(Q17), passes through a 3-pole variable tuning BPF and is
amplified by the amplifier (Q26). Then, it passes through a
2-pole variable tuning BPF and enters IC3. The total 5-pole
variable tuning BPF controls the tuning frequency according
to the control signal output from the D/A converter of the
TX-RX1 unit (X57-605).
The signal amplified by IC3 is again divided into VHF band
and UHF band paths by a diode switch and output to the
final unit (VHF band: X45-360 A/2, UHF band: X45-360 B/2).
Fig. 14
CIRCUIT DESCRIPTION
Summary of Contents for TS-2000
Page 132: ...TS 2000 X TS 2000 X 134 WIRING ...
Page 142: ...1 2 B A D F C E G I H J 3 5 7 9 4 6 8 10 12 14 11 13 TS 2000 X CIRCUIT DIAGRAM 165 ...
Page 144: ...1 2 B A D F C E G I H J 3 5 7 9 4 6 8 10 12 14 11 13 TS 2000 X CIRCUIT DIAGRAM 169 ...
Page 167: ...234 TS 2000 X MC 52DM MULTI FUNCTION MICROPHONE WITH DTMF Schamatic Diagram ...