HYT TC-446, Service Manual

Page: 53 / 54

1 2 3 4 5 6 7 8
A
B
C
D
8 7 6 5 4 3 2 1
D
C
B
A
MODEL
FILE NO. REV
HYT Science & Technology Co. Ltd.
Part Name
DRAWN BY CHECKED APPROVAL
PAGE OF
DATE
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M38223M4H
1
20
40
60
80
IC11
B+
POWER1
9 10
AF
FIL
O
6 7 8
QUAD
FILI
11
IFO
D
EC
12 13 14 15 16
5 4 3 2 1
OS
C
I
OS
C
O
MIX
O
VC
C
IFI
R
SSI
NDE
T
NR
E
C
E MIX
I
IC1
TA31136FN
C1
10u/10V
C2
0.01u
R1
680K
C13
220P
R3
2.2K
C14
220P
R7
100k
C18
27P
C20
470P
R25
3.3K
C37 0.1U
OUT IN
CF1
C52
33P
X1
20.945MHz
C53
33P
C3
0.01U
R36
10K
L1
470
R26
3.3K
C57
4700p
C58 82P
CD1 R47
820
C4
0.01U
C38
0.1U
C54
33P
IF
SYSTEM
Q1
UMG3N
Q2
UMG3N
Q3
UPA572T
Q4
FMMT717
Q5
FMMT717
C59
1000P
R51
1K
R27
3.3K
R28
3.3K
C60
1000P
C5
0.01u
R64 2.7K
R65 2.7K
C87
1u/ 6.3V
R52
1K
C61
1000P
C62
1000P
R66 820
L5
3.3U
D2
MA2S376
D3
MA2S376
C88
10p
L6
601S
C90
7P
D4
MA360
TC1
10P
C182
6P
C193
8P
R67
330
C91
0.5P
C96
6P
C100
22P
C97
6P
D5
MA2S077
R70
680
C103
3P
C63
1000P
Q6
2SJ243
Q7
UMC4
R105
47K
D7
MA2S376
C19
18P
Q8
2SK508NV
R8
100K
R9
100K
R53
1K
L7
601s
TC2
10P
L16
23nH
C189
5P
C186
4P
L48
100N
R72
120K
R74
100
R29
3.3K
R79
5.6K
C21
470P
R68
150
C22
470P
L18
22n
L19
22n
R80
10
R30
3.3K
D6 MA2S077
R31
3.3K
C24
470P
R82
10
R69
150
C92
1P
C7
0.01U
C109
1000p
D9
MA2S111
R84
4.7K C110
1000p
C115
15u/6.3V
L17
100n
C65
1000P
D8
MA2S376
Q9
DTA114YE
R10
100K
Q10
DTA114EE
C39
0.1U
R113
10
R114
2.7k
R115
47
R117
8.2K
C124
1u/6.3V
L8
601s
C25
470P
R56 1K
Q13
2SC5108
R11
120K
R38
10K
TP1
Q14
2SC5108
Q15
2SC4226
Q17
2SC4988
Q18
2SC5343(s)
C98
6P
C42
470P
C27
470P
C111
1000p
C134
2P
C28
470P
C137
0.01u
C101
6.8
C67
270P
C147
1000p
C102
0.5P
C55
15P
C29
470p
C138
33P
C68
1000P
L21
15nH
L22
4T
L2
5T
L23
4T
L30
8T
L3
0
L31 4T
L32
4T
L33
3T
L24
3T
L4
0.22uH
R122
330
R123
47
R75
100
D11
MA77
C139
7.5
C140
0.75
C141
11P
C142
11P
C143
0.75P
C30
470P
D12
MA2S077 L11
221SG
C231
470p
C31
470P
L12
601S
C113
1000p
L13
601s
C117
4.7u/16V
C149
470P
C43
0.1U
C44
0.022U
C150
0.033U
C151
0.033U
C152
0.033U
C153
0.033U
C45
0.1U
R130
5.6K
Q21
2SK1824
R132
27K
R134
680K
R97
82K
C69
1000P
R12
100K
R135
3.3K R139
150K
R140
150K
R136
3.3K
C155
10u/10V
R137
3.3k
R141
150K
R142
150K
R138
3.3K
C70 1000P
C8
0.01U
C156
0.018u
C71
1000P
R57
1K
R107
0
R39
1K
R13
100K
R14
150K
C197
470p
C159
10u/10V
C46
0.1U
C47
5600pF
R2
270K
R15
100K
R16
270K
R98
20K
C160
0.033U
C162
0.047U
C72
1000P
R144
1.8K
Q19
2SC5343(s)
Q20
2SC5343(s)
Q22
2SC5108(Y)
R146
330 XF1
C99
NC
R108
0
R48
1.5K
R147
100
R148
560K
R49
2.7K
R625
100K
R5
330
Q23
3SK318
L37
NC
C73
1000P
C56
NC
C74
1000P
C135
10P
L25
22n
R40
10K
TP1
21.4M
MIXER
VR1
C163
0.5P
C104
1P
C105
3P
R150
470P
C164
0.5P
R145
100K
C165
2.2U/16V
R33
3.3K
Q24
2SC5343(s)
R152
39K
R41
10K
R155
1.8M
R42
10K
R156
1.8M
R157
56K
R158
39K
R85
6.8K
R159
39K
R153
39K
C9
0.01U
C166
3300P
C167
0.022U
C157
0.047u
C171
560P
C172
2700P
C158
0.047U
C34
560P
C75
1000P
C10
0.01U
C144
10P
Q25
2SC5343(s)
4 5
8 1
IC3
NJM2100V
C168
0.022U C169
0.022U C48
0.1U
R131
1.8K
R50
1.5K
R160
750K
R161
15K
R162
15K
R120
22K
R110
0
C173
4.7U/16V
C76
1000P
C49
0.1U
C77
1000P
C50
0.1U
D18
1SS372
C174
1U/16V
D19
DAN222
ACTIVE
FILTER
ACTIVE
FILTER
Q26
2SC5343(s)
R163
15K
L14
1uH
R165
2.2K
R166
470
C125
10u/10V
C35
470p
Mic
MIC1
TC3
10P
TC4
10P
L38 3T
J3
SPK/4Ω
VR2
47K
R58
1K
R18
100K
L41
0.22u
R19 NC
R20
NC
R21 NC
L42
NC
X3
C175
33p
C176 33P
C78
1000p
R59
1K
C79
1000P
OUT IN
GND
IC4
XC6201P502PR
D20
0
C80
1000P
C177
15u/6.3V
R167
220K
R22
470K
C81
1000P
R43
330K
R
6
0
1
K
R61
1K
R99
4.7K
R121
4.7K
R87
4.7K
C170
NC
C11
0.01u
Q28
DTC114EE
C82
1000P
R44
10K
R62
470
Q30
DTC114EE
R118
470
R45
10K
C83
1000P
1
2
3
4
5
A0
A1
A2 VCC
SDA
6
7
8
GND
TEST
SCL
IC5 AT2408
CP4 4.7K*2
CP5
10K*2
C15
100P
C16
100P
C17
100P
C180
100p
R63
NC
D13
NC
R143
NC
C181
3900P
C161
0.047U
R133
82K
R88
4.7K
MONI MONI
PTT
PTT
R6
2.2K
ANT1
R89
1K
R90
100
C89
1.5P
L28
3T
C145 6P
C146
2.4P
L43
1U
C136
3P
Q31
RD07
Q32
RD01
C132
100p
L44
23nH
C95
1P
Q16
PRF957
C192
2.4P
R169 8.2k
R170
12K
R171
82
L45
47nH
R34
3.3k
C51
0.1u
C12
0.01u
R172 0
R173 0
R100
10K
R125
47
R101
47K
R102
27K
R103
56k
R104
22k
C114
1000p
VDD Vss
- -
- -
+ +
+ +
NJM2902
IC7
L46
3.3U
C187
10P
L47
100n
R164
10
C188
22P
L49
330N
C190
NC
C191
NC
C178
0.1U
C85
1u/ 6.3V
J2
MIC
J1 SPK
TXD
C120
47uF/16V
Q34
DTA114YE
R177
4.7K
R175
100K
R176
100K
R174
2.2K
C194
0.1uF
C196
1.5P
L26
18n
C195
2P
D22
RED
D24
GREEN
P
S
T
9140NR
IC9
C200
1u/6.3V
VR3
68K
R109 1M
R127
100
C32
470p
R32
3.3k
C33
470P
L34
3T
L39
47n
L35
3T
L36
3T
L40
100n
Q27
3SK318
R151
0
R76
100
R111
470P
C106
6P
C93
2P
C94
0.5P
C107
5P
C108 5P
TC5
10P
R77 0
R187
NC
R182
NC
R179
NC
R183 NC
R178
NC
R181
NC
R186
NC
R78
NC
R180
NC
R184
NC
C183
NC
C185
NC
C184
NC
1
4 5
8
IC6
NC
Q36
NC
Q37
NC
R185
NC
L10 600sg
C116
NC
R83
NC
R191
47
R192
0
C126
0.33u
C127
NC
Q38
NC
L20
NC
R129
NC
C23
0
R194
0
C207
470P
C133
0.33u
R197
0
R4
47K
R196
5.1
DC 6.0V
C208 470P
G2
G2
R198
120K
455kHz(H)
C198
1000P
L15
600sg
C204
470P
C112
1.5u/10V
R35
100K
CP1
10K*4
CP3
4.7K*4
+
C121
1000P
VR4
68K
R124
120K
R154
47k
C179
100p
C86
1u/ 6.3V
C230
NC
L29
3.3nH
C123
0.22u
C66
1000P
R37
10K
Q12
DTC144EE
R55
1.5K
C122
0.039u
C203
100u/6.3V
R17
NC
C36
470P
Q40
2SA1362
C64
0.1u
R54
47K
Q39
NC
R203
1.0K
C118
68uF/6.3V
C40
0.1u
Q41
2SK1588
R94
470K
R24
33K
R93
47K
C84
0.1u
IC8
R628
8.2K
C237
0.047U
R106
0
R112
10
KIA6278F
C239
220P
IC2 IB31202
1
8
9 16
CP6
10K*4
R602
0
R601 0
D25 MA2S111
VR6 NC
SELF
R508
0
C253
10P
C26
1000P
R96
330
C255
10P
C252
1000P
R128
47K
R202
0
R200
0.1U
R116
1M
R81
3K
R204
10K
R205
NC
C232
4700p
C233
0.1U
C235
1000P
C506
33P
R605
R604
C240
0.01U
C241
0.01U
C242
0.01U
C243
0.01U
R606
47K
R607
47K
R608
47K
R609
47K
12
3
4 12
11
10
9
5678
U1
R610 47K
Q35
DTC114EE
RXD
Q46
2SK1824
C246
0.1U
R617
27k
C247
22u/6.3V
C248
22u/6.3V
C249 NC
1
2
3
4
5
6
7
8
C250
0.1u
R619
820
R616
270
C251
470P
R149
56k
R626
100K
R627 56K
R623
100K
R624 100K
R618
68K
W/NC
W/NC
W/NC
Q47
NC
R615
47K
C202
1u/6.3V
VDD
4
VC
1
OUT
3
GND
2
12.8MHZ
X4
VR5
68K
L50
1UH
D10
BDZ3.0B
TC-446
Schematic Diagram
R622
18k
C254
2200P
1 1
August , 2005
00
Q50
0