Complete view, Th-k2at/k2e/k2et, Schematic diagram – Kenwood 144MHz FM TRANSCEIVER K2E User Manual
Page 57: Are parts of layer1
-t
-t
5C
5MS
5R
D16
MA2S111
C41
4.7u6.3
R36
10
R35
120k
C40
0.1u
R30
1.2k
R31
2.2k
C33
0.22u35
C35
0.1u35
KTC4082
Q23
R132
2.2k
R131
330k
R130
100
C83
0.01u
C84
0.1u
L13
R53
100
R47
5.6k
D8
HSC277
D9
HSC277
IC2
NJM2904V
1
AOUT
A-IN
A+IN
4
GND
5
8
2
7
3
6
C109
1000p
C111
1000p
R77
150k
(D)
R76 150k (D)
R74
100k
(D)
R75
100k
(D)
R78
150k
(D)
R79
150k
(D)
R80
10k
R81
390k
R82
27k
R83
56k
C110
1000p
R70
0.39
R71
0.39
R72
0.39
R86
5.6k
C136
10p
R91
1k
R46
10k
IC3
TA31136FN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C174
180p
R135
470k
C176
0.1u
C180
120p
C128
0.01u
C191
0.01u
C125
1.5p
C126
10p
2SC5488
Q24
R90
330
R134
390k
R133
1k
R124
3.3k
C172
1800p
C182
0.1u
C13
0.5p
(B)
C20
8p
C22
18p
R19 120k
2SC4617(R)
Q4
R21
4.7k
D7
MA2S111
C27
10u10
R45
3.3k
C135
12p
F1
2.5A
D15
MA8039
C117
1000p
C113
1000p
R125
560
2SK2596
Q11
C45
100p
C46
100p
C44
100p
C52
10p
R38
56k
R20
1k
C133
0.01u
R102
0
R55
470
C97
12p
(G)
C99
13p
(G)
C101
24p
(G)
C96 12p
(G)
R93
47
R94
330
C159
2p
(B)
C98
8p
(B)
C88
56p
R85
560
R84
100k
C108
100p
D14
MA2S111
D10
XB15A709
C114
1000p
L19
9T
L16
R97
82k
C69
4p
R56
1k
R58
10
R60
56k
C95
12p
(G)
C116
10u4
C115
1000p
C34
4.7u6.3
R24
470
2SK3476
Q12
J2
L50
D32
RB051L-40
R210
12
D31
DA221
C295
5p
C294
5p
C293
47p
R237
100k
D49
B30-2237-05
R231
150
R238
1k
R226
220
D40
B30-2156-05
D41
B30-2157-05
D48
B30-2237-05
R227
100
R236
1k
R190
47k
C236
0.01u
C235
0.01u
R191
47k
2SB1184(Q,R)
Q37
D34
MAZS0270H
C246
100u10
R217
820
C167
0.1u
R118
27k
2SC4617(R)
Q21
R167
180k
C212
0.012u
C168
0.1u
R165
820k
2SK1830
Q20
C169
0.068u
C170
0.068u
R116
120k
C211
2200p
R144
0
C228
0.1u
C207
0.01u
C220
4700p
C221
0.01u
R192
470
2SC4617(R)
Q30
R156
100k
C201
1200p
D24
MA742
C219
0.047u
2SK1830
Q27
2SC4919
Q29
C230
1u
R185
270k
R181
470
R147
470
R137
4.7k
R180
39k
R179
220k
R148
150k
C209
1000p
R151
680
R197
100
R152
150k
R173
15k
R182
1k
C226
0.1u
R161
1k
C206
0.015u
R195
100
C229
0.1u
R174
560k
R140
180k
C195
10u10
R141
18k
C196
6800p
C197
6800p
R146
18k
R207
1k
R145
4.7k
CN2
1
2
IC6
TA7368F
1
2
3
4
5
6
NF
7
PHASE
8
PRE-GND
9
PW-GND
10
POUT
C255
10u10
R206
15
C253
10u10
C252
100p
L49
R205
100
C249
1000p
D26
1SS388
C248
0.1u
2SK1830
Q31
C247
0.1u
R203
470k
D25
MA2S111
R204
180k
R202
47k
R126
27k
R123
1.8k
C171
1000p
C186
24p
C187
2p
C188
24p
C189
1000p
C192
0.01u
C183
0.1u
R128
3.3k
R199
1k
R160
4.7k
C205
0.047u
R178
0
C225
1u
IC5
NJM2107F
1
2
3
4
5
V+
C202
270p
R155
100k
R153
1k
R168
180k
C203
120p
R157
330k
R158
330k
C204
0.033u
R159
120k
CN1
1
2
3
4
5
6
C210
0.01u
R166
820k
C213
4.7u6.3
C256
1000p
C257
1000p
C258
0.1u
R209
100k
R208
10
D60
R122
2.7k
R119
1.8k
F3
0.5A
R51
470
C129
11p
C198
1u
C250
1u
C65 18p
C118
1000p
C76
39p
C89
1000p
C93
8p
C100
7p
(B)
R92
3.3k
R54
100
R59
12k
C50 22p
C51
22p
2SK1830
Q3
R6
1k
C132
0.01u
C54
1000p
C55
0.01u
C38
0.01u
C43
0.01u
Q14
RN4902
R254
1k
R256
1k
R252
100k
D62
D63
D65
R253
1k
D64
D12
HVC131
D13
HVC131
3SK318
Q16
D18
1SV305
D19
1SV305
D20
1SV305
D21
1SV305
C313
0.039u
R50
33
R49
330
C304
1000p
R239
1k
R241
330k
C307
0.1u
R242
330k
C299
1u
R243
330k
R240
100k
C107
1000p
2SK1830
Q13
R5
100k
CP31
3.9k
C14
1000p
C15
12p
C178
0.01u
C177
22u6.3
R127
47
C11
1000p
C26
1000p
C25
1000p
C30
1000p
C21
1000p
C37
1000p
C42
1000p
C190
0.01u
C61
1000p
C64
1000p
C67
1000p
C71
1000p
C75
1000p
C74
33p
C78
1000p
C82
1000p
C94
1000p
C162
47p
(G)
C163
1000p
C153
1000p
C147
1000p
C134
1000p
C130
1000p
C131
0.01u
C240
1000p
C270
1000p
C271
1000p
C279
1000p
C280
1000p
C318
1000p
C317
1000p
R257
*
R258
*
R259
*
R260
47k
R261
*
C238
1000p
C241
1000p
R201
4.7k
C242
0.01u
C237
10u10
R193
1.8k
R224
18k
R223
220k
Q52
RN1107
C239
1000p
CP2
3.9k
R255
0
2SC5488
Q9
2SC5488
Q6
C91
1000p
R61
220
R62 220
C90
1000p
R98
82k
R96
82k
R95
100k
C141
1000p
2SB1184(Q,R)
Q33
2SK1830
Q34
R211
470k
D33
RB051L-40
C276
1000p
2SJ347
Q36
R272
4.7k
C272
470p
C290
1000p
C291
1000p
C298
1000p
C300
1000p
C302
1000p
C305
1000p
C306
1000p
C308
1000p
C320
*
C321
*
L17
18.5n
L20
7T
L21
9T
C179
0.1u
L8
120n
R12
47
CPH3317
Q55
C175
22p
C173
180p
R177
10k
R212
10k
R214
10k
R162
180k
R163
560k
R196
10k
R216
10k
R200
10k
R194
10k
R213
22k
D69
MA2S111
D70
MA2S111
D71
MA2S111
D72
MA2S111
IC8
90522BPFFG139
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
COM2
62
COM3
63
VSS
64
SEG16
65
SEG17
66
SEG18
67
SEG19
68
SEG20
69
SEG21
70
SEG22
71
SEG23
72
SEG24
73
NC
74
NC
75
SEG25
76
SEG26
77
SEG27
78
SEG28
79
SEG29
80
SEG30
81
SEG31
82
V0
83
V1
84
V2
85
V3
86
HST(VCC)
87
MD2
88
MD1
89
MD0
90
RESET
91
VSS
92
X0
93
X1
94
VCC
95
PWRSW
96
INTUP
97
INTD
W
98
DCDET
99
RXLED
100
BSFT
101
PLLEN
102
PLLLD
103
KIN0
104
KIN1
105
KIN2
106
KIN3
107
KIN4
108
TYPE
109
VUKEY
110
MICM
111
NO
AA
112
5R
113
SHIFT
114
5T
115
K
OUT0
116
K
OUT1
117
K
OUT2
118
K
OUT3
119
VSS
120
BTDET
X3
7.982MHz
IC15
AT25160N10SI27
1
CS
2
SO
3
WP
4
GND
5
6
7
8
L10
82n
L11
82n
L54
56n
2SK1830
Q58
C323
1000p
R263
10k
C325
1000p
R41
270
R39
270
R271
12
C326
1000p
C327
0.1u
C328
1u
C329
56p
XF1
L71-0619-05
L41
18n
L40
68n
L38
82n
L35
82n
L32
82n
C148
22p
(G)
C158
22p
(G)
C145
22p
(G)
C160
27p
(G)
C504
2p
(B)
L66
120n
R103
2.7k
R101
47
R104
56
IC17
NJM2902V
1
2
3
4
V+
5
6
7
8
9
10
11
GND
12
13
14
CPH3417
Q56
C331
1000p
L46
560n
R215
470k
R273
1k
2SC4617(R)
Q38
Q47
RN1701
C303
150u6.3
IC11
S-80930CNNBG80
1
VSS
2
VDD
4
OUT
3
CD
IC10
S-80844CNNBB85
1
2
4
VSS
3
NC
2SK1215(E)
Q17
L12
10n
L15
6.8n
L55
10n
L56
22n
C208
82p
R64
0
IC16
NJM2904V
1
2
3
4
GND
5
6
7
8
V+
CD1
450kHz
R277
47k
2SC5488
Q5
R18 10
C19
15p
R15
5.6k
C17
C18
R14
R17
3.3k
R16
C324
1000p
CN6
1
2
3
4
5
6
CN7
1
2
3
4
5
6
C332
0.1u
C106
1000p
C105
1000p
CF1
L72-0968-05
L58
820n
C152
1000p
C335
0.1u
C336
0.1u
R282
0
R283
0
R285
0
R286
0
L64
4.7u
C57
10p
R188
47
C338
1u
J3
MIC
J4
SP
C502
3p
(B)
C501
1.5p
(B)
C500
1.5p
(B)
R290
0
CN9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CP32
1k
CP33
1k
CP34
1k
CP35
1k
R310
3.9k
R313
3.3k
R318
1k
R8
100k
R189
0
R324
47k
C339
0.047u
R325
47k
R326
0
R342
0
R343
0
R328
470k
R330
470
C193
4.7u6.3
C56
1000p
R332
15
C344
1000p
C345
1000p
C346
1000p
C347
1000p
C348
1000p
R88
330
C349
0.1u
C350
*
C351
0.01u
C352
1000p
C353
1000p
R335
1k
C354
1000p
C355
0.01u
C356
0.01u
C357
1u
L18
220n
R235
1k
VR1
500k
D27
RB706F-40
C359
0.1u
C360
0.1u
C1
0.01u
C4
1000p
D5
HSC277
C5
0.1u
C6
1000p
R4
1k
R11
150k
C10
0.01u
2SC5488
Q2
R10
47
S7
S70-0485-05
TH3
100k
TH1
10k
L9
82n
L14
47n
L27
680n
C85
56p
C366
100p
C503
100p
C73
1000p
C137
5p
C138
1000p
L29
22n
L28
27n
D73
MA2S111
IC1
LMX2316TMX
1
2
3
4
5
6
7
8
9
GND3
10
CE
11
CLK
12
D
ATA
13
LE
14
FO/LD
15
VCC2
16
VP
CP1
2.7k
C24
1000p
D30
RB521S-30
2SK1830
Q35
R52
1k
R111
1.0M
R100
1.0M
R99
1.0M
R110
1.0M
R117
2.7k
(D)
R171
56k
(D)
R170
47k
(D)
L53
15n
C68
18p
D22
1SS361
L23
9T
L22
9T
R32
1k
C358
0.047u
VR5
50k
VR6
100k
R142
4.7k
R149
47k
R143
470
Q51
RN4902
C194
0.1u
R120
2.7k
C166
0.01u
L45
560n
2SC4926YD
Q10
R42
100
2SC4617(R)
Q15
R33
22
R34
3.3k
C66
1u
L1
10u
D1
1SV325
D2
1SV325
L2
47n
L6
10u
C2
1000p
L3
82n
2SC5066(O)
Q1
C8
27p
(G)
C9
27p
(G)
R9
270
L5
10u
R13
6.8k
R22
8.2k
C3
3p
(B)
C7
0.5p
(B)
D6
1SV305
R7
47k
R341
0
C142
1000p
C112 1000p
C72
0.1u
C70
1u
C231
1000p
C124
0.1u
C223
1000p
C224
0.1u
R176
820k
R175
2.2k
C222
0.01u
R115
5.6k
R37 56k
C92
1000p
D17
HSM88AS
R312
4.7k
Q41
RN2105
Q57
RN2105
IC12
TK11250CUCB
1
NP
2
GND
3
CONT
4
VIN
6
V
OUT
IC9
TK11250CM
1
2
3
4
V
OUT
5
GND2
6
VIN
C309
1u
C311
0.1u
C314
1000p
C330
1000p
C316
0.1u
C319
10u10
D36
RB521S-30
D35
RB521S-30
C286
1u
C283
1000p
C282
1000p
C285
1000p
C284
1000p
C281
1000p
R276
47k
R275
47k
Q53
RN2701
IC4
XC6202PB52FR
1
2
4
GND
3
R264
*
Q59
*
R344
*
Q22
RN2105
C510
*
C515
*
C516
*
C511
*
C512
*
C517
*
L68
R345
0
X1
12.8MHz
L77-1931-05
VC
GND
R346
68
R347
100
R348
220
R349
0
D74
DA221
D79
DA221
C505
0.047u
R351
220
L26
470n
R354
0
D80
RB521S-30
C506
1000p
R323
4.7k
C232
1000p
C218
1000p
C161
1000p
R291
0
R218
0
CN10
C514
*
CN15
CN17
*
LCD (B38-0881-05)
1
COM0
2
COM1
3
COM2
4
COM3
5
SEG0
6
SEG1
7
SEG2
8
SEG3
9
SEG4
10
SEG5
11
SEG6
12
SEG7
13
SEG8
14
SEG9
15
SEG10
16
SEG11
17
SEG12
18
SEG13
19
SEG14
20
SEG15
21
SEG16
22
SEG17
23
SEG18
24
SEG19
25
SEG20
26
SEG21
27
SEG22
28
SEG23
29
SEG24
30
SEG25
31
SEG26
32
SEG27
33
SEG28
34
SEG29
35
SEG30
36
SEG31
R198
10k
SEG30
SEG31
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
COM3
COM2
COM1
COM0
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
SEG14
SEG15
SEG26
SEG25
SEG28
SEG30
SEG27
SEG31
SEG29
SEG24
SEG19
SEG16
SEG18
SEG22
SEG23
SEG17
SEG21
SEG20
COM1
COM2
COM0
COM3
SEG4
SEG2
SEG1
SEG6
SEG3
SEG5
SEG7
SEG10
SEG8
SEG11
SEG0
SEG9
SEG13
SEG12
SEG14
SEG15
LV
C243
1000p
D46
B30-2205-05
D44
*
CN8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
MIC1
D47
*
R230
*
2SK1830
Q50
R337
470
R336
220
D42
B30-2205-05
D43
B30-2205-05
R248
3.9k
C312
0.039u
R246
3.9k
C310
1u
R164
10k(D)
L63
R244
0
C297
0.1u
PLL IC
VDD
APC
DIFFERENTIAL
AMP
DC SW
TEMP
COMPENSATION
FM IC
TX PATH
1st MIXER
1st IF
38.85MHz
450kHz
VGG
PLLLD
CLOCK
DATA
PLLEN
APC
2nd L.O.
ANT
CHARGE SW
DC IN
TX LED
BUSY LED
EEPROM
SP MUTE SW
DCS BAL
SPG
AFO
SPK
REM/TXD
IM
MAX DEV
DTMF/1750
MIC
PTT
T0
SP
MOD
VOLOUT
SHIFT
SET
KAPC
INT0
RESET
WIDE/NARROW
CHANGEOVER SW
AF MUTE SW
SQV
SMV
5R
SQ FILTER
IF AMP
MIC
MUTE
SW
WX1050Hz
5MV
5MV
VOX
DETECTION AMP
DTMF/BEEP/1750/W-ALT
5T
AF AMP/
LAMP AVR
8V
5C/5R/5T AVR
5MS
BIT3
RXD
REM
TXD
PTTE
BTEMP
MONI
JUMPER
PTT
CHARGE
V
OLIN
LAMP
8 OHM
KEY
TYPE
BIT2
BIT1
BIT0
PTT BOARD
FREQ
SPG
SPK
BATTERY
TERMINAL
5MS
11.5V AVR
5.0V AVR
RXD
PTTE
IM
TXD
SPM
MIG
ENCA
ENCB
5MS
PTT
KIN4
KYO2
KYO1
BL
GND
KIN3
KY
O2
KIN0
KY
O1
KIN2
KY
O0
GND
LAMP
MIG
KIN4
8M
KY
O3
IM
KIN1
IM
V
OLOUT
MIG
MICM
NAR
W/N
TX-RX UNIT (X57-674X-XX)(A/3)
ENCA
ENCB
5C/5R/5T AVR
5C/5R/5T AVR
5C/5R/5T AVR
5C/5R/5T AVR
HPF
AF AMP
MPU
5.0V AVR
4.4V VOLTAGE DETECTION
3.3V VOLTAGE DETECTION
5R/5MV
SW
MIC AMP
CTCSS/DCS/WX FILTER
VCO
RF AMP
RF AMP
VCO SHIFT CONTROL SW
RIPPLE FILTER
RF AMP
RF AMP
DRIVE
AMP
10KEY BOARD
TX-RX UNIT
(X57-674X-XX)(B/3)
MENU
TX-RX UNIT
(X57-674X-XX)(C/3)
REM
DTMF/BEEP
DTMF/BEEP
DRIVE
AMP
POWER
AMP
APC CIRCUIT
OPERATION SW
APC OUTPUT SW
APC OUTPUT
VOLTAGE LIMITTER
Q12 GATE
VOLTAGE SW
OVER INPUT
PROTECTION
ANTENNA SW
D12,13
ANTENNA SW
SPEED UP
TRIPLER
RX 1st AMP
Q10 OPERATION SW
VOLTAGE
DROP
AF FILTER
WIDE/NARROW
CHANGEOVER SW
Q56 OPERATION SW
Q31
CONSTANT-
CURRENT
CIRCUIT
Q33 OPERATION SW
NI-MH
TEMPERATURE
DETECTION
DC IN
DETECTION
REVERSE
CURRENT
PREVENTION
D33,35,36
Q36
AVR
CONSTANT-
VOLTAGE
Q37 OPERATION SW
Q38
Q37
5MS SW
5C SW
5T SW
BEAT SHIFT SW
LCD LED SW
KEY LED SW
TX/BUSY
LED SW
WX DETECTION AMP
RF SW
RF SW
RX BPF TUNING
D18,19
D20,21
RX BPF TUNING
MIC MUTE
CONTROL
MIC ALC
RECTIFICATION
D27
D24
VOX DETECTION
RECTIFICATION
SP MUTE
SPEED UP
C246 DISCHARGE
D26
REVERSE CURRENT
PREVENTION
KEY
ILLUMINATION
LED
D42-44,46,47
D48,49
LCD
ILLUMINATION
LED
KEY TYPE
DETECTION
D60
D62-65
MARKET CODE
DETECTION
REVERSE
CURRENT
PREVENTION
D69-72
5T
5T
5T
5T
+B
+B
+B
SQV
SMV
5MV
AFM
V
OLIN
REVERSE CURRENT
PREVENTION
+B
5R
5R
5R
5R
5R
5R
5T
PO
WER SW
KAPC
KAPC
VGG
LIMITER
D74,79
REVERSE CURRENT
PREVENTION
D80
5T
FINAL
FINAL
TEMP
TEMP
BPF/APC
BPF/APC
BPF/APC
BPF/APC
TEMP
+B
5MS
V
OUT
VSS
VIN
1
VCC
VIN
RIPPLE
VOLIN
ENCA
NAR
ENCB
MOD
TO
5MS
QT/DQT
ENCB
ENCA
QT/DQT
5R
5T
5MS
5C
MOD
TO
NAR
VOLIN
5T
VOLIN
ENCA
NAR
ENCB
MOD
TO
5C
5R
5MS
QT/DQT
VOXIN
SIGIN
TONE
REM
5MV
RXLED
NOAA
VOXIN
5MV
TONE
SIGIN
REM
RXLED
NOAA
MICM
+B
MICM
+B
5M
AFAMP
CHARGE
BTEMP
BTDET
DCDET
+B
RXD
SPM
TXD
IM
PTTE
MIG
8V
AFAMP
BTEMP
TXD
MIG
+B
CHARGE
5M
DCDET
PTTE
SPM
IM
RXD
BTDET
8V
SEG14
SEG15
VSS
C0R1
ENCA
ENCB
5MS
D
VCC
D
VSS
DTMF/BEEP
T
ONE
A
VCC
A
VRH
A
VRL
A
VSS
REM
SIGIN
SQ
SM
VO
X
IN
THERM
BA
TT
BTEMP
VCC
CHARGE
LAMP
AF
AMP
NAR
COM0
COM1
CLOCK
DATA
EEPDI
EEPCS
VOX
BPF/APC
KAPC
VCC
AFM
SPM
RXD
TXD
PTTE
PTTI
5C(SAVE)
FINAL
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
AFM
KAPC
PLLLD
SMV
SQV
CLOCK
5MV
DATA
5T
VOLIN
NAR
MOD
TO
5C
5R
5MS
QT/DQT
SHIFT
PLLEN
+B
TEMP
FINAL
5M
AFM
PLLLD
KAPC
DATA
SMV
SQV
5MV
CLOCK
QT/DQT
VOLIN
5C
5R
MOD
TO
5MS
5T
NAR
SHIFT
PLLEN
+B
TEMP
FINAL
5M
SI
SCK
HOLD
VCC
BATT
5MS SW
LAMP
5C SW
VOX
5R SW
5T SW
BATT
5MS SW
LAMP
5C SW
VOX
5R SW
5T SW
PTTI
5M
PTTI
5M
EEPDI
EEPCS
BPF/APC
EEPDI
EEPCS
BPF/APC
MIG
IM
+B
5M
8V
VUKEY
KIN3
KOUT0
TYPE
KIN2
KOUT3
KOUT1
KIN1
KIN0
KIN4
KOUT2
RESET
PWR SW
INT0
MIG
IM
+B
5M
8V
KIN3
KIN0
KIN2
KIN1
KIN4
TYPE
KOUT3
KOUT2
KOUT1
KOUT0
VUKEY
INT0
PWR SW
RESET
*
7
1/F
4
2/VFO
5
8
0
6
9
#
3/MR
MR
F/CALL
VFO
CALL
*
*
*
CONT
GND1
NP
OUT
VDD
5T
VOLIN
NAR
MOD
TO
5R
5MS
QT/DQT
SQV
SMV
CLOCK
DATA
KAPC
AFM
PLLEN
PLLLD
SHIFT
+B
5C
FINAL
TEMP
5T
VOLIN
NAR
MOD
TO
5R
5MS
QT/DQT
SMV
SQV
DATA
CLOCK
AFM
KAPC
SHIFT
PLLEN
PLLLD
+B
5C
FINAL
TEMP
MOD
SQV
SMV
QT/DQT
NAR
PLLEN
5MS
AFM
SHIFT
5C
PLLLD
TO
CLOCK
5R
D
ATA
V
OLIN
D
ATA
5R
CLOCK
PLLLD
5C
AFM
PLLEN
NAR
QT/DQT
SMV
SQV
V
OLIN
BPF/APC
5R
NAR
SMV
SQV
BPF/APC
VCO FREQUENCY CONTROL
D1,2
VCO MODULATION
D6
D5
FREQUENCY SHIFT
FLO
CPO
GND1
GND2
FIN
FIN
VCC1
OSCI
PLL LOCK DETECTION
D16
OUTPUT
VCC
REVERSE CURRENT PREVENTION
D14
B+IN
B-IN
BOUT
V+
ROTARY
ENCODER
&
VOL KNOB
FINAL
KAPC
TEMP
VOLOUT
VOLIN
ENCB
GND
ENCA
GND
R169
100k(D)
R186
68k
-t
C227
2.2u4
R183
33k
TH4
100k
R353
33k
TH-K2E
TH-K2AT
TH-K2ET
NO
R230
220
220
R257
56k
NO
NO
0
0
R258
680
R259
0
0
680k
R261
47k
NO
NO
NO
R264
0
0
R344
100k
NO
NO
E23-1081-05
NO
E23-1081-05
CN17
TH-K2AT
220
NO
0
0
NO
0
NO
NO
TH-K2AT
TH-K2E
TH-K2ET
TH-K2AT
D44
B30-2205-05
B30-2205-05
NO
B30-2205-05
2-72
0-11
2-71
0-21
2-72
0-11
0-21
2-71
X57-674X-XX
X57-674X-XX
E
K,K2
E3
M,M2
E
M,M2
K,K2
E3
NO
B30-2205-05
B30-2205-05
B30-2205-05
D47
D60
NO
NO
NO
MA2S111
D62
MA2S111
MA2S111
MA2S111
NO
MA2S111
NO
NO
MA2S111
D63
NO
Q59
NO
2SK1830
NO
NO
NO
NO
C321
8200p
NO
C320
NO
NO
8200p
NO
0.1u
NO
C350
NO
NO
C510
100p
100p
NO
NO
NO
C511
470p
470p
C512
470p
470p
NO
NO
NO
NO
C514
470p
470p
NO
NO
470p
C515
470p
470p
470p
C516
NO
NO
470p
NO
470p
C517
NO
1000p
1000p
3.3k
470
MA2S111
MA2S111
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN
AFOUT
QU
A
D
IFOUT
RSSI
N-DET
N-REC
GND
MIXIN
R172
10k
ON:6.90V
4.83V
4.66V
4.92V
4.68V
4.69V
T:4.95V
R:0V
T:4.95V
R:0V
5.01V
T:0V
R:4.90V
4.45V
13.43V
13.8V
T:0V
R:4.89V
11.45V
7.07V
13.58V
4.80V
7.07V
3.23V
T:4.92V
R:0V
2.08V
ON:4.78V
ON:4.76V
T:73mV
R:3.39V
T:3.29V
R:110mV
4.83V
T:4.23V
R:0V
T:4.85V
R:0V
1.30V
12.46V
12.29V
2.00V
1.40V
4.90V
2.29V
(HIGH POWER)
4.63V
1.58V
3.63V
4.45V
T:0V
R:4.63V
W:111mV
N:4.79V
4.76V
0.53V
4.82V
0.72V
4.71V
2.68V
2.42V
4.66V
0.27V
Reference voltage value are measured when the power supply voltage is 13.8V(DC IN).
T:4.96V
R:0V
4.31V
T:0V
R:0V
Note : The components marked with a
dot (
●
) are parts of layer1.
TH-K2AT/K2E/K2ET
SCHEMATIC DIAGRAM