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K
TK-2160
TX-RX UNIT (X57-6720-10)
RF AMP
T:1.3V
Q11
R:0.9V
2SC5108(Y)
T:1.27V
R:0.94V
5C
5T
B
APCSW
VOLOUT
LOCAL
5R
T:0V
R:4.95V
THM
MOD
W:0V
N:5V
RSSI
W/N
AF MUTE
Q601
2SK1824
C605
AFMUTE
6.8u6.3
HSD LPF
C604
R604
R608
10k
180k
0.1u
DSW
DTMF
DTRLOADN
STD
DI/O
SCLK
TDATA/DTRCLK
DIR
R607
R609
BEEP
10k
10k
R847
XOUT
7.3728MHz
C843
3p
1k
X801
L77-1933-05
Q810
2SK1824
R848
BSHIFT
BEET SHIFT
SWITCH
1k
TCLK/DTRDO
RFD/FD
XIN
LSDI
5M
VOLIN
PCTV
VOX
PTTSW
5MS
HSDI
OPTDET
AFCO
BEEPSW
PTT(CPU)
TXD1
TXAFI
ALT
DEO
SB
X57-672 3/4
L
SCHEMATIC DIAGRAM
D201,401
PRE-DRIVE AMP
TX/RX RF SWITCH
Q206
D201
2SK3077
HSC277
C202
C85
R203
C203
1000p
0
47p
10p
T:1.5V(Hi)
R:0V
T:0V
R:2.85V
L413
L402
39n
39n
C426
C437
2p
2p
(B)
(B)
CF401
L72-1008-05
C402
270p
C403
270p
R406
3.3k
Q401
IC401
TA31136FN
W/N SWITCH/RX
FM IF SYSTEM
R408
3.3k
Q401
DTA144EE
RSSI
R610
4.7k
C611
R612
1u
6.8k
C614
R613
0.1u
820k
IC806
TC7W74FU
C854
8
1
CK
VCC
0.01u
7
2
D
PR
6
3
Q
CLR
5
C850
4
GND
Q
0.01u
FLIP FLOP
R849
0
TCLK/DTRDO
RFD/FD
XIN
LSDI
5M
M
TX DRIVE AMP
Q207
2SK2596
C246
L213
C242
R254
39p
0
27n
1000p
0.51V(Low)
T:1.98V(Hi)
0.67V(Low)
R:0V
T:5V
R:0V
5T
R258
DTC114EE
0
XF401
R413
T:0V
L71-0617-05
R:0.74V
120k
49.95MHz
C417
R414
0.01u
680
Q402
2SC4649(N,P)
IF AMP
T:0V
C414
R:4.37V
33p
R621
R624
47k
8.2k
A
C610
4.7u6.3
C613
0.1u
C621
4.7u6.3
C622
4.7u6.3
10
32
DTRLOADN
AGND
TCLK/DTRDO
11
31
TDATA/DTRCLK
RXIN
12
30
DI/O
RXINO
13
29
IC601
RDF/FD
FILTERO
AQUA
14
28
SCLK
EXPOUT
AUDIO PROCESSOR
27
15
DIR
RXAFIN
R616
16
26
XOUT
RXAF
0
C632
C634
0.1u
1000p
C631
A
0.012u
C625
R626
68p
180k
R623
270k
LSD LPF
LSD LPF
N
TX FINAL AMP
Q211
2SK2595
C280
L218
R262
0
1000p
27n
T:3.88V(Hi)
1.32V(Low)
R:0V
APC SWITCH
Q208
APC PROTECT
Q209
2SK879(GR)
APC SWITCH
C424
R416
0.01u
100
AF AMP
IC602
TC75S51FE
1
5
VDD
2
VSS
3
R637
R630 680k
390k
C639 47p
LIMITTER
MIC_I
MIC_O
(MM)
R647
R634
C641
0
R629
390k
10k
0.1u
C648
R641
R643
120k
150k
0.1u
A
A
A
C643
R642
C646
68p
120k
820p
A
RA_O
0
R601
R628
R646
RA_I
220k
22k
C645
C642
R632
2.2u
0.1u
82k
R696
10k
R627
R633
180k
22k
ALT
DEO
O
5T
ATTCV
B
APCSW
5R
T:0V
R:5V
5R
4
V REF
VOLOUT
PCTV
VOX
PTTSW
5MS
HSDI
TXINO
OPTDET
AFCO
BEEPSW
PTT(CPU)
TXD1
SB
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