Kenwood TK-5210 Service Manual page 70

F
TX-RX UNIT :TX-RX SECTION(X57-6820-XX)(A/5)
CV
33A(Y)
D4
D5
POWER
R43
RD
0
R37
WR
0
CPU
D6
D4,5
SURGE
ABSORPTION
GND
EXT ANT
GND
14 SSW
SSW
1
13 SP+
SP+
SP- 12 SP-
MSW/CTS 11 MSW/CTS
EMC 10 EMC
MICE
9 MICE
PTT 8 PTT
REM REM
7
RTS1 RTS1
6
E
5 5M
5M
4 TXD
TXD
3 RXD
RXD
2 E
DSR 1 DSR
14
CN7
G
SCHEMATIC DIAGRAM
15D(Y)
D
D
D D
A13
A19
A12
A20
B11
CVSS9
A11
D
DVDD5
D10
D6
C10
D7
B10
D8
D
A10
D9
D9
D10
C9
D11
B9
D12
A9
HD4
D8
D13
C8
D14
B8
D15
A8
HD5
B7
CVDD6
A7
CVSS10
C7
D
HDS1
D7
DVSS8
D
A6
D
HDS2
B6
DVDD6
C6
A0
D6
A1
D
A5
A2
B5
A3
C5
HD6
D5
A4
A4
A5
B4
A6
C4
A7
A3
A8
CVDD7
B3
A9 A21
C3
DVSS9
A2
B2
D
D D D D
L13
L14
L15
L16
C39 100p
L31
R394 0
D2
NNCD6.8G
SURGE
ABSORPTION
H
D D
DSP
IC8
D D
R71 470k
RXDM(Y)
R65 47k
R41 100k
R585
CPU
470
TXDM(Y)
IC10
TC7W53FK
R579
1 8
CoMMoN
VCC
470 2 7
INH
CH0
3 6
VEE
CH1
4 5
GND
A
MULTIPLEXER
D
R391
470k
D3
NNCD6.8G
D2,3
D
I
TK-5210
D
D D
BFSX1
M12
N12
D
SRESET
DVSS7
L11 C22
BCLKX1
M11
0.01u
D D
CVSS8 HD1
N11
CVDD5
L10
R29 47k
INT3
M10
INT2
N10
R30 47k
INT1
K9
R39 47k
INT0
L9
NMI
M9 R28 47k
HBIL
N9
IACK
K8
BDX2
L8
BDX0
SDTI
M8
HD0
N8
DVSS6
K7
D
DVDD4
L7
HRDY
N7
BFSX2
M7
BFSX0 LRCK
N6
CVDD4
M6
HINT
L6 C21
CVSS7 0.01u
K6
D D
BCLKX2
N5
BCLKX0 SCLK
M5
BDR2
L5
HCNTL1
K5
BDR0
SDTo
N4
BFSR2
M4
BFSR0 LRCK
L4
BCLKR2
K4
BCLKR0
SCLK
DVSS5
N3
HCNTL0
BCLKR1 M3
D
CVSS6
N2
SCLK1
N1
D
D
D
IC9
TC74VHCT244AFT
1 20
1G VCC
2
19
D
1A1 2G
RTS
3
18
2Y4 1Y1
LD1
4 17
1A2 2A4
EXTI TXDM
5 16
2Y3 1Y2
6 15
CHGIo DAT 1A3 2A3
7 14
STRB1 2Y2 1Y3
8
13
CLK 1A4 2A2
D
9
12
2Y1 1Y4
D_TXD oE1
10 11
GND 2A1
R392
BUFFER
D
470k
Q520
UM6K1N
BUFFER AMP
J
CV
POWER
CPU
BDX1
D1
INT0
A1
BDX2
D0
RDY
BFSX2
HINT
BCLKX2
BDR2
A3
BFSR2
BCLKR2
A2
DSP-FPGA
CPU
POWER
D D
LD
D
DAT1
STRB
CLK1
oE
X57-682 2/12