Tx-Rx Unit (X57-6980-Xx) - Kenwood TK-7180H Service Manual

A
TK-7180H/7182H
TX-RX UNIT (X57-6980-XX)(B/3)
1
L415
CN802 L411
+B
L410
CN803
GND
2
CN804
E40-3246-05
R821
1
IGN
2 1M
GND
S-80942CNNBG9C
CN429 1
E40-6412-05
30
SPO
4.99V 2
29
SPO
28
SPO
27
3
SPO
26
SPO
C478 100p
25
SPO
24
C487 1000p
GND
23
8C
22
SB
21
SB
C481 1000p
20
NC
C490
19
PSW
18
GND
17
4
GND
C498
16
MIC
C500 100p
15
ME
14
1000p
C502
GND
13
PSENS/PTT
C504
12
RST2/LCDCS
* R659
11
LCDCLK
* R660
10
LCDDI
* R661
9
LCDDO
8
GND
C515
5 7
SHIFT/MODEL
C516
6
5C
5
NC
4
TXD
3
RXD
2
GND
* R662
1
DM
6
7
86
X57-698 1/10
B
SCHEMATIC DIAGRAM
D802
DC REVERSE
CONNECTION
PROTECT
D801
VOLTAGE
SB CONTROL SW
VOLTAGE PROTECTION
PROTECTION
T:7.46V
VOLTAGE
R:7.91V
DETECTOR(INT)
Q812
DTC114TE
8.83V
IGNITION SENS
CONTROL SW
IC801
4
IC803 T:7.96V
VSS oUT
TA7808F R:7.97V
1 2
IN OUT
3
GND
VDD
CD
3
VOLTAGE IC803
DETECTOR
VOLTAGE
(CPU RESET)
REGULATOR/8V
Q811 T:7.96V
R:7.97V
DTC114EE
CPU RESET SW
SPO
8C
SB
1000p
R825
PSW
1k
100p
PSENS
1000p
RST2
R572
LCDCLK
0
R574
LCDDI
0
R575
LCDDO
0
1000p
R577
*
1000p
5C
TXD
RXD
R591
DM
0
CN403
E40-6361-05
C
C822 470p
T:12.7V
R:13.5V
F801
Q810
5A 2SJ645
F53-0278-05
SB SW
T:7.60V
R:8.09V
Q802
DTC114EE
Q807
DTC114EE
SB CONTROL SW
R820
SBC
47k
IGN
VOLTAGE
IC805
REGULATOR
8.21V 4.99V
NJM78L05UA
/8.5V
3 1
IN OUT
COM
Q801
2
2SC2873(Y)
VOLTAGE VOLTAGE
PROTECTION REGULATOR/5V
D805
02CZ9.1(X,Y)
VOLTAGE
REGULATOR/5V
IC807
XC6201P502PR
3 1
VIN VOUT
VSS
8T SW
T:7.83V
2
Q803
12A02CH
8T CONTROL SW
Q806
DTC114EE
T:7.2V
R:7.95V T:4.95V
R:0V
8R SW
R:7.95V
Q804
12A02CH
8R CONTROL SW
Q808
DTC114EE
T:7.94V
R:7.25V
IC804 5.00V
TA7805F
1 2
IN OUT
GND
3
T:0V
R:4.98V
5R SW
VOLTAGE
Q805
REGULATOR/5V
12A02CH
R813
4.7k
4.28V
Q809
DTC114EE
5R CONTROL SW
D
+B
* D402
5M
D402-404
SB
RTC BATTERY
CONTROL
* D403
D
4.99V
IC402
*
10 1
5M
VDD 32KOUT
9
2 * CP401
OSCIN
SCL
8
3
SDA
OSCOUT
7 4
CLKC INTRB
6 5
INTRA VSS
RTC PROCESSOR
INTRA
5M
INT
RST
EEPROM
8C
IC401
AT24256N10SU27
4 5
GND SDA
5E
3 6
NC SCL
2 7
A1 WP
8
1 4.99V
A0 VCC
8T
C410
0.1u
D
5M
BEAT SHIFT SW
Q402
DTC114YE
8R
D
X404
L77-1950-05
5C
5R
5M
IC403
SHIFT
BU4094BCFV
REGISTER
16
1
VDD
STRB
15
2
DATA OE
3 14
CLK Q5
13
4
Q6
AO1 Q1
12
5
Q7
PA Q2
6 11
HOR Q3 Q8
7 10
Q4 Q'S
9
8
QS
VSS
C407 0.01u
D
AO2
D421,422
VOLTAGE
PROTECTION
D421
1SS388
D422
1SS388
E
IGN
SBC
RTCL/EEPCL
RTDT/EEPDAT
TXC
RST
XOUT
XIN
C411
5M
0.1u
INT
INTRA
SHIFT/MODEL
DT
SPSTB
SOE
4.99V
GSW
CFSW
SCSW
RXC
CK
MIC
ME
OPT6
R823
47k
R445
10k
R446
10k