UNIDEN 400 MODEL PC- 404 PA -198

UNIDEN 400  MODEL PC- 404 PA -198
8
7
6
5
4
3
2
1
PA - 198
PA -198
FROM TR30
R79
33R
DIMMER SWITCH
TC9106P
C80
47p
C79
.22u
NOTE:
All Transistor and IC voltages are ± 2%.
All Voltages taken with Fluke 89 IV.
C115
10u
C81
22p
R66
2K7
C88
68p
C85
39p
C82
150p
C86
470p
C87
100n
C90
33p
C89
8p
D11
ISV73
C97
10p
C94
220p
C68
10n
TP3
L20
LA0201
R73
2K2
C95
100p
R45
12R
MIX
AMP
D8
1S1555
R44
2K7
C53
220p
TR9
2SC2028
DRIVER
C58
10n
TP2
R46
10K
AMP
Vss
C152
15p
CHASSIS
D
L11
LA398
L10
LE098
C51
47p
C38
33p
C48
56p
TR501
2SC2029
FINAL
R41
150R
R39
1K
C
TR9
L27
L2
VR1
SQUELCH
R4
1K5
R7
220R
TR31
2SC941
C8
1p5
D1
1S2075
C2
10n
R131
100K
L2
LB336
TR2
D = 7.3 VDC
G = 0.0 VDC
S = 2.4 VDC
L31
LD164
L1
LA397
L26 C4
LD164 1n
R2
5K6
VR3
RF METER
L4
IC501
MB3712
AUDIO AMP
L18
o
© Euro Radio Co
ALWAYS 8.8V
TR2
2SK192
RF AMP
D
C5
1n
C35
4u7
R14
220R
L4
LA394
FT1
10.7M
TR4
B = 0.9 VDC
C = 7.5 VDC
E = 0.8 VDC
R5
100K
R6
1K
C16
47n
R15
2K2
C11
10n
C13
10n
R132
2K2
R9
2K2
C6
10n
C18
33n
FT2
FL143
R12
3K3
C14
1n
R25
56R
VR5
MOD METER
R21
15K
R18
1K
C21
33n
C19
100n
C17
33n
R32
1K
C23
10n
HI
LOW
C551
10n
VCC
L.P.F.
2
R34
15K
BIAS CCT
VR501
50K
VOLUME
GND
R24
330R
TR7
B = 2.1 VDC
C = 8.5 VDC
E = 1.6 VDC
IC1
TA7130P
FM IF AMP
C27
47n
R554
10K
R553
68K
7
PEAK
DETR
6
C22
33n
C
SW553C
TONE SWITCH
L7
LB150
1
C26
1n
TR7
2SC1675
IF AMP
C34
3n3
C31
100p
C30
10n
o
o
R78
10K
R52
18K
1
-
4
+
5
3
R110
33K
C130
10u
D16
1S2075
D17
1S2075
R108
820K
C119
68n
2
IC4A
NJM4558S
C125
2u2
R102
270R
C124
4u7
R103
47K
R100
330R
R96
12K
R97
10K
R95
10K
C117
4u7
9
7
6
R107
10K
C72
4u7
TR12
B = 0.2 / 0.5 VDC
C = 1.2 / 0.1 VDC
E = 0.0 / 0.0 VDC
Squelch Min / Max
C126
1u
R94
1K
VR4
300R
DEVIATION
C123
15n
C122
680p
R93
68R
7
R80
220K
TR19
B = 0.0 / 0.7 VDC
C = 0.0 / 0.0 VDC
E = 0.0 / 0.0 VDC
Squelch Min / Max
4
C103
10u
C112
R82
8K2
C114
C104
2n2
R83
1R
CHASSIS
TR21
2SC945
PA
SWITCH
J3
EXT SP
L23
L0033
C138
100u
L29
L0034
+
13.8 VDC
TR20
2SC945
AF MUTE
R105
10K
PA
D19
1N4003
C503
10n
-
R120
1K
T1
TF083
6
1K
SW PA 13.8V
SW CB 13.8V
ALWAYS 8.8V
TR24
2SA733
TX SWITCH
TR26
2SC2236
REGULATOR
TR26
B = 9.4 VDC
C = 12.5 VDC
E = 8.8 VDC
D18
9.3V
ZENER
C116
10n
R121
1K
C139
10u
RX 8.6V
R127
56K
C134
22u
TX 8.6V
TR33
2SC945
TR24
B = 8.5 / 7.8 VDC
C = 0.1 / 8.6 VDC
E = 8.8 / 8.8 VDC
RX / TX
R118
10K
R117
1K5
D24
1S1555
L30
L0034
C504
10n
TR22
2SC945
RX SWITCH
R128
47K
TO R62
PIN 8 PLL
R123
56K
D14
1S1555
TR30
2SC945
D15
1S1555
R129
100K
CHASSIS
TR13
IN TX MODE
B = 1.6 VDC
C = 8.5 VDC
E = 1.1 VDC
TO METER
SWITCH
C404
1n
4
1
3
2
C403
10n
GROUND IN TX
L403
L0099
C402
10n
TR22
B = 8.5 / 0.8 VDC
C = 8.8 / 8.8 VDC
E = 8.6 / 0.1 VDC
RX / TX
C401
10n
L402
L0099
C140
1n
VR355
1K
MIC GAIN
PA - 106 MIC JACK PCB
5
A
L401
L0099
J402
MIC SOCKET
L404
L0099
AF AMP MUTE
7
D353
RX LED
R122
R87
10K
C141
47n
C142
2n2
C143
47n
C144
47n
C146
10n
C145
2n2
4
C147
10n
C148
10n
C149
100p
DRAWN BY: Rick Jackson © Euro Radio Co
CHASSIS
PART OF PA - 199
8
D352
TX LED
CB
R88
22K
R119
10R
1/2 W
SP501
SPEAKER
CHASSIS
AF AMP MUTE
PL501
METER LAMP
C505
10n
R106
10K
SW553A
CB/PA SWITCH
J4
P.A.
L21
L0033
4n7
R81
68R
BRT
L24
1
4n7
8
C102
1n
DIM
R552
100R
R551
68R
© Euro Radio Co
R104
4K7
VR5
50K
MOD METER
PRE-SET
C76
1u
R57
470R
ON
L0033
IC501
MB3712
AF AMP
C107
100n
TX 8.6V
D5
1S2075
C74
10u
C105
47u
5
SW553D
DIMMER SWITCH
OFF
C111
4n7
D6
1S2075
C116
47n
R99
47K
C128
1n
R51
2R2
TR11
B = 0.7 / 0.0 VDC
C = 0.1 / 4.6 VDC
E = 0.0 / 0.0 VDC
Squelch Min / Max
TR13
2SC945
8
IC4B
NJM4558S
3
6
R77
22K
C99
22u
RX 8.6V
R56
330K
S351
POWER SW
C113
2
TR19
2SC945
SQUELCH
BUFFER
C101
1n5
C75
1u
+
C129
47n
R98
47K
C108
330u
R84
56R
TR12
2SC945
SQUELCH AMP
R58
5K6
-
C127
150p
C135
1000u
C100
3n9
B
L22
L0033
C110
4n7
4n7
R50
10K
R555
47K
C118
15n
R101
8K2
R109
27K
D10
1N60
PART OF PA - 199
ALWAYS 8.8V
R76
10K
TR11
2SC945
SQUELCH AMP
R55
220K
VR351
50K
SQUELCH
TX 8.6V
R53
10K
R54
1M
R23
39K
IC4 A & B
Pin 1 = 8.8 VDC
Pin 2 = 4.8 VDC
Pin 3 = 2.2 VDC
Pin 4 = 4.5 VDC
Pin 5 = GROUND
Pin 6 = 3.5 VDC IN TX
Pin 7 = 4.3 VDC IN TX
Pin 8 = 4.3 VDC IN TX
Pin 9 = 8.8 VDC
All voltages ± 2%
D21
1N4003
C49
2n2
VR1
100K
SQUELCH
PRESET
IC5
Pin 1 = 6.7 VDC
Pin 2 = 13.8 VDC
Pin 3 = 12.5 VDC
Pin 4 = GROUND
Pin 5 = N/C
Pin 6 = 0.8 VDC
Pin 7 = 0.8 VDC
Pin 8 = 0.8 VDC
CHASSIS
LOCK DECTECTOR
IC1
TA7130P
FM IF AMP
PA - 199
TO R92 (TR28)
SW CB 13.8V
D9
1S2075
RX 8.6V
R81
33K
D4
1N60A
R22
1K5
PART OF PA - 199
TO VR5
C29
33n
© Euro Radio Co
ALWAYS 8.8V
L7
L6
R111
2K2
C28
22u
IC1
Pin 1 = 1.8 VDC
Pin 2 = 1.8 VDC
Pin 3 = 6.8 VDC
Pin 4 = GROUND
Pin 5 = 3.5 VDC
Pin 6 = 3.4 VDC
Pin 7 = 4.6 VDC
L6
LB336
TR6
2SC1675
IF AMP
R17
68R
TX 8.6V
VR4
DEVIATION
B
A
R33
100R
R37
1K
L19
IC3
TC9106P PLL
R26
22K
C20
47n
L5
LA204
R19
1K
TR5
2SC1675
IF AMP
TR4
2SC1675
2nd MIXER
C153
3u3
TR6
B = 0.9 VDC
C = 2.1 VDC
E = GROUND
TR5
B = 0.9 VDC
C = 7.6 VDC
E = 0.4 VDC
FT3
455 KHz
D
C9
3u3
C3
10n
R16
10K
C15
33n
R13
2K2
D25
1S2075
G
TR3 S
2SK192
1st MIXER
C7
10n
D3
MC301
C1
22u
R11
10K
L3
LA395
10.2400 MHz REFERENCE OSCILLATOR
L5
M501
S/RF METER
VR2
50K
S METER
R20
220R
D
S
S
D2
MC301
L27
LB420
R10
220R
D20
1S2075
TR32
2SK192
1st MIXER
G
G
o
IC2
TA7310P
MIXER
L20
TR1
IN RX MODE
B = 0.8 VDC
C = 0.1 VDC
E = 0.0 VDC
TR3 / TR32
D = 6.5 VDC
G = 0.0 VDC
S = 2.5 VDC
C30
15p
VR354
1K
RF GAIN
L3
SW553B
METER SWITCH
RX 8.6V
TR1
2SC945
VR2
S METER
L16
S/RF
MOD
RX SIGNAL
R3
470R
L15
L17
R97
1K5
TO 1st MIXER
R1
33K
T1
L1
PART OF PA - 199
C42
47n
3
J3
EXT SP
VR3
50K
RF METER
D7
1S2075
FM TX AUDIO
UNIDEN 400 MODEL PC- 404
J4
PA
C501
120p
CHASSIS
LOCK DETECTOR
10.2400 MHz REFERENCE OSCILLATOR
L11
C502
33p
C37
220p
TX FREQUENCY
Ch 1 = 16.7250 MHz
Ch 40 = 17.1650 MHz
LOCK DETECTOR
R38
2K2
C36
82p
C47
220p
C41
2p
RX FREQUENCY
Ch 1 = 16.2700 MHz
Ch 40 = 16.7100 MHz
VCO OUTPUT
SO259
ANT
L8
LE096
L9
LE093
R69
22K
© Euro Radio Co
TR501
C39
220p
R40
2R2
C52
100p
R43
47R
C62
10n
C155
5p
C40
82p
C137
220p
C46
220p
C45
220p
TR10
2SC945
PRE DRIVER
9
C71
33p
C96
1n
© Euro Radio Co
CHASSIS
C55
3p
R42
15R
C67
1n
1
R72
56K
D12
IS2339
IC3
TA7310
L12
LE188
L15
LA208
Vdd
L19
LA165
CT1
20P
C73
10n
L13
LC130
C63
1n
C98
10n
7
TR18
2SC945
VCO BUFFER
R74
100K
6
TR17
2SC945
VCO
X1
10.240 MHz
C83
390p
TP1
R65
10K
R92
5K6
TR16
2SC945
OSC
R64
2K2
TR17
B = 4.0 VDC
C = 8.2 VDC
E = 4.0 VDC
L16
LA088
C60
4n7
CHASSIS
CHASSIS
5
CHANNEL
SWITCH
R90
5K6
TR16
B = 5.4 VDC
C = 7.6 VDC
E = 6.2 VDC
R68
82K
TR10
L28 IN TX MODE
LD087 B = 1.4 VDC
C = 12.5 VDC
E = 1.4 VDC
CHASSIS
R
Eu J
ro ac
R ks
ad on
io
C
o
CB 13.8V
ALWAYS 8.8V
C78
2u2
R63
4K7
9
8
7
6
5
4
3
2
1
C56
4n7
C50
10n
C61
2n2
C64
10n
L17
LA374
L14
LD087
4
R313
330R
FIN
R/T
AO
AI
PD
LD
CL
RI
VCC
C65
10n
C69
1p
L18
LA373
8
D
P0
P1
P2
P3
P4
P5
P6
P7
GND
R75
1K
TR18
B = 0.9 VDC
C = 3.1 VDC
E = 1.3 VDC
5
10
11
12
13
14
15
16
17
18
C70
1p
R71
39K
R70
100K
C84
47n
IC3
R301 to R312
ARE ALL 680R
TR16
2SC2236
DISPLAY
SWITCH
R67
100R
C156
47n
3
C77
2u2
R124
47R
1/2 WATT
C93
10n
C92
470u
4
C91
10n
R62
4K7
SW CB 13.8V
R47
100R
R48
10R
R49
100R
2
ALWAYS 8.8V
CHANNEL DISPLAY
SW PA 13.8V
TX 8.6V
3
2
Size
Document Number
Uniden 400.SCH
Date:
Thursday, January 03, 2008
Rev
1.1
PCB Number PA - 198
Sheet
1
1
of
1
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