Kenwood TK-8180H Service Manual page 95

K
TK-8180H/8182H
DSTB
DT
MM2
AM1
FLASH MEMORY
IC405
AT29C040A-90TU
1 32
A11 A11 oE RD
31
2
A9 A9 A10 A10
3 30
A8
A8 CE CS0
4 29
5M A13 A13 Io7 D7
5 28
A14 A14 Io6 D6
27
6
A17 A17 Io5 D5
7 26
WE
WR Io4 D4
8 25
4.99V
VCC Io3 D3
24
9
A18 A18 GND
10 23
A16 A16 Io2 D2
11 22
A15
A15 Io1 D1
12 21
A12 A12 Io0 D0
20
13
A7 A7 A0 A0
14 19
A6
A6 A1 A1
15 18
A5 A2
A5 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
X57-699 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
C444
R496
100k 39p
R498
270k
VOLTAGE
PROTECTION
2.49V
R500
0
270k
R526
1.53V LSD BUFFER AMP/
C462 0.01u
VCXO BIAS AMP
IC411
TC75W51FU
LMC7101BIM5
0.87V 1
1
5
OUTPUT V-
2
2
V+
3
3
4
INPUT+
INPUT-
4
VSS
RF BPF TUNING
VOLTAGE DC AMP
R494 4.7k
HSD BPF/HSD
R495 4.7k
COMPALATOR
C440 0.1u
IC406
TC75W51FU
1
8
VDD
2
7
- +
C443
3 6 R497
+ -
4 3.3k 0.01u
5
VSS
C438 0.01u
M
D/A CONVERTER
IC410
M62364FP-F
12 R549
13
VIN5 VIN4
47k
14 11
VoUT5 VoUT4
10
15
VoUT6 VoUT3
9
16
VIN6 VIN3
8
17
D0 DI
18 7
VDAREF CLK
6
19
RESET LD
5
0.01u 20
GND VDD
R546
21 4
47u6.3
VIN7 VIN2
3 0
22
VoUT7 VoUT2
2
23
VoUT8 VoUT1
1
24
VIN8 VIN1
C454 0.01u
R534
27k
R517
56k
IC408
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
R527 R565 R536 C470
3.9k 0 15k
0.01u
2.50V
EMTON
LSW
LSDO
N
TX-RX UNIT (X57-6990-XX) (B/3)
C465
22p
R535
R529
680k
390k
4.98V
IC412
TC75W51FU
MODULATION
LPF/DEF AMP
C469
R521 R523 0.1u
47k 100k
2.50V
C584
100p
C400 R530
0.012u 56k
R532
1k
2.48V
AQUA
CONTROL
4.98V
SW
Q405
DTA114EE
R548
82k
R557
4.7k
AF SW
(LSD)
Q406
HN1J02FU
4.92V
MM1
BEEP
O
DT
MM2
AM1
AF
2.49V
2.50V
V_REF
MM1
BEEP
AGND
LIMLV
LSDIN
STSW
RXC
CK
SCSW
MIC
ME
OPT6