Kenwood TK-3160 Service Manual page 29

K
TK-3160
TX-RX UNIT (X57-6732-XX)
RF AMP
Q11
T:1.85V
C86
2SC5108(Y)
R:1.86V
C82 T:1.42V
R:1.41V
33p
5T
5C
5T
B
APCSW
VOLOUT
2ND_LO
5R
THM
W:0V
N:5.05V
RSSI
AF MUTE
Q601
2SK1824
C605
6.8u6.3
R604
AFMUTE HSD LPF
180k
MOD
DSW
DTRLOADN
STD
DI/O
SCLK
TDATA/DTRCLK
DIR
R607 R609
10k 10k
R847
1k
7.3728MHz
C843
3p
X801
L77-1933-05
R848
BSHIFT
Q810
BEEP
2SK1824
1k
XOUT
BEET SHIFT
DTMF
SWITCH
TCLK/DTRDO
RFD/FD
XIN
5M
LSDI
VOLIN
HSDI
VOX
PTTSW
5MS
PCTV
OPTDET
AFCO
BEEPSW
PTT(CPU)
TXD1
TXAFI
ALT
DEO
SB
X57-673 3/4
L
SCHEMATIC DIAGRAM
PRE-DRIVE AMP
D201,401 Q205
2SC5108(Y)
TX/RX RF SWITCH
R204 R207
D201
HSC277
C202 15k 33k
R57 R203
7p
0 0
470p
CF401
L72-1015-05
T:0V
R:4.95V
C402
330p
C403
330p
R406
3.3k
Q401 IC401
TA31136FN
W/N SWITCH
FM IF SYSTEM
R408
3.3k
Q401
DTA144EE
RSSI
R610
4.7k
C611
R612
1u 27k
C614 R613
0.1u 820k
IC806
TC7W74FU
C854 8
1
CK
VCC
0.01u 7
2
D PR
6
3
Q CLR
5
4
GND
Q
FLIP FLOP
R849
0
TCLK/DTRDO
RFD/FD
XIN
5M
LSDI
M
PRE-DRIVE AMP
Q206
2SK3077
R230
C224 C226
*
18
470p
R237
*
T:1.53V(Hi)
0.96V(Low)
R:0V
T:0V
R:2.86V
XF401
R413
T:0V
L71-0617-25
R:0.74V
120k
49.95MHz
C417 R414
0.01u 680
Q402
2SC4649(N,P)
IF AMP
T:0V
C414
R:4.42V
10p
R621 R624
47k 5.6k
A
C610 4.7u6.3
C613
0.1u
C621 4.7u6.3
C622 4.7u6.3
10 32
DTRLOADN
AGND
TCLK/DTRDO
31
11
RXIN
TDATA/DTRCLK
12 30
DI/O RXINO
13 IC601 29
RDF/FD FILTERO
AQUA
14 28
AUDIO PROCESSOR
EXPOUT
SCLK
15 27
DIR
RXAFIN
R616 16 26
XOUT RXAF
0
C632
C634 0.1u
1000p
C631
A
0.012u
C625
R626
68p
180k
R623
270k(G)
LSD LPF LSD LPF
N O
TX DRIVE AMP
Q207
2SK2596
L213 *
C242 L209 C282
8.2n 8.2n
6p
T:1.37V(Hi)
0.86V(Low)
R:0V
T:5V
R:0V
5T
APC SWITCH
Q208
R251 DTC114EE
0
L402
18n
C426
*
Q209
2SK879(GR)
APC SWITCH
RECTIFIER
DC SWITCH
Q407
2SK1824
C424 R416
0.01u 100
AF AMP
IC602
TC75S51FE
1
5
VDD
2
VSS
3 4
R637
R630 680k
390k
C639 47p
LIMITTER
MIC_I
MIC_O
(MM)
R634 C641
R629 R647
390k
15k
0.1u 0
C648
R641 R643
120k 180k 0.1u
A A A
C643
R642 C646
68p
120k
820p
A
RA_O
R601 0
R628 R646
RA_I
220k
22k
C645
C642
R632
2.2u
82k 0.1u
R627
R633
180k 22k
VOLIN
ALT
DEO
L218
*
R262
0
T:2.46V(Hi)
1.55V(Low)
R:0V
5T
ATTCV
APC PROTECT
B
APCSW
VOLOUT
5R
PCTV
T:0V
R:5V
TV
V REF
HSDI
VOX
PTTSW
5MS
TXINO
PCTV
OPTDET
AFCO
BEEPSW
PTT(CPU)
TXD1
SB