Kenwood TK-7180H Service Manual page 95

K
TK-7180H/7182H
DSTB
DT
MM2
AM1
FLASH MEMORY
IC405
AT29C040A-90TU
1 32
A11
A11 oE RD
2 31
A9 A10
A9 A10
3 30
A8
A8 CE CS0
29
4
A13
5M A13 Io7 D7
5 28
A14
A14 Io6 D6
6 27
A17
A17 Io5 D5
7 26
WE
WR Io4 D4
25
8
4.99V
VCC
Io3 D3
9 24
A18 GND
A18
10 23
A16
A16 Io2 D2
22
11
A15
A15 Io1 D1
12 21
A12
A12 Io0 D0
13 20
A7 A0
A7 A0
14 19
A6
A6 A1 A1
18
15
A5
A5 A2 A2
16 17
A4
A4 A3 A3
D
5C
DI
DEO
MP
MOD
MB
R522
TV
100k
10CL
HSDIN
HSDO
EMTON
LSDIN
LSW
MM1
BEEP
LSDO
STSW
RXC
CK
SCSW
MIC
ME
OPT6
88
X57-698 3/10
L
SCHEMATIC DIAGRAM
C441
10u
D405
EMZ6.8N
R503 R508
VOLTAGE
PROTECTION
100k 1k
C445
15p
DET AMP/
DATA LPF(DB-25)
IC407
TC75W51FU
C467
C455
R496 C444
39p
100k
R498
270k
VOLTAGE
PROTECTION
2.49V
R500
0
R526 270k
1.53V
LSD BUFFER AMP/
0.01u
C462
VCXO BIAS AMP
IC411
LMC7101BIM5
1
0.87V
1
5
OUTPUT V-
2
2
V+
3
3 INPUT+
4
INPUT- 4
VSS
RF BPF TUNING
VOLTAGE DC AMP
4.7k
R494
HSD BPF/HSD
R495 4.7k
COMPALATOR
C440
0.1u
IC406
TC75W51FU
1 8
VDD
2
7
- +
3 R497 C443
6
+ -
4 3.3k 0.01u
5
VSS
C438 0.01u
M
D/A CONVERTER
IC410
M62364FP-F
12
13
VIN5
VIN4
11
14
VOUT5
VOUT4
15 10
VOUT6
VOUT3
16 9
VIN6
VIN3
8
17
DO
DI
18 7
VDAref
CLK
R376
19 6
RESET
LD
5
0.01u 20
4.99V
GND
VDD
R324
4
47u6.3 21
VIN7
VIN2
22 3 0
VOUT7
VOUT2
23 2
VOUT8
VOUT1
1
24
VIN8
VIN1
C454 0.01u
R517
56k
IC408
TC75W51FU
8
VDD
7
- +
6
+ -
5
R520
2.50V
C453 0
2.50V
0.1u
IC409
TC75W51FU
1 8
VDD
2
7
- +
3 6
+ -
4 5
VSS
LSD LPF/VOLTAGE
DC-REFERENCE
C470
R527 R565 R536
3.9k 0 15k
0.01u
2.50V
EMTON
LSW
LSDO
N
TX-RX UNIT (X57-6980-XX) (B/3)
C465
22p
R529 R535
680k 390k
4.98V
IC412
TC75W51FU
MODULATION
LPF/DET AMP
47k
C469
R521 0.1u
R523
150k
47k
2.50V
C584
68p
C400 R530
0.012u 56k
R532
1k
2.48V
4.98V
Q405
DTA114EE
R548
82k
AQUA
CONTROL
SW
R557
4.7k
AF SW
(LSD)
Q406
HN1J02FU
4.92V
MM1
BEEP
O
DT
MM2
AM1
R552 10k AF
2.49V
2.50V
V_REF
MM1
BEEP
AGND
LIMLV
LSDIN
STSW
RXC
CK
SCSW
MIC
ME
OPT6