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Motorola HT Series User Manual

Motorola HT Series
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VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486473Z03) 9-331
Figure 9-201. VHF (136-174 MHz) Controller ASFIC/ON_OFF Schematic Diagram
100K
R377
R372
160K
100K
R378
LM2904
U303-1
2
3
1
8
4
C328
0.1uF
1.0uF
C337
100K
R371
51pF
C383
6.8pF
C358
Vdda
5V
DISC_OUT
NU
NU
NU
NU
C359
NU
6
5
7
8
4
C390
U303-2
LM2904
R370
R376
0
R373
R374
NU
R375
0.1uF
R445
24K
C479
C452
1uF
30K
R425
.022uF
C451
0.1uF
C430
0.1uF
C414
C415
0.1uF
0.1uF
C407
0.1uF
C411
R449
24K
FLAT_RX_SND
URX_SND
RX_AUD_RTN
Vdda
VOX
VS_AUDSEL
VS_GAINSEL
DACRx
100pF
C408
C409
0.1uF
0.1uF
C410R475
0
TP410
1
INT_MIC
Vdda
EXT_MIC
TX_AUD_SND
MODIN
AUDIO
FLAT_TX_RTN
LEDBL
0.1uF
C422
0.1uF
C416
C421
0.1uF
R413
0
C419
.01uF
.01uF
C420
32
33
27
25
28
36
26
35
31
30
29
34
47K
R400
SYN
F1200
5V
Vdda
16.8MHz
RED_LED
TX_AUD_RTN
17
19
24
18
23
22
15
14
13
16
21
20
44
45
43
39
48
46
40
37
38
47
41
42
7
10
1
11
12
9
8
3
5
4
2
6
VOX
TXSND
UIO
VDDA
VDDCP
VDDD
VDDDAC
VDDRC
VDDSYN
PLCAP2
RXRTN
RXSND
SQCAP
SQDET
SQIN SYN
TXRTN
HSIO
LCAP
LSIO
MICEXT
MICINT
MOD
NC
PLCAP
GCB3
GCB4
GCB5
GNDA
GNDD
GNDDO
GNDRC
GNDSYN
DACR
DACU
DATA
DISC
F1200
GCB0
GCB1
GCB2
AUDIO
AUXTN
CHACT
CLK
CLK168
CSX
DACG
63A53
U404
DATA
CLK
CSX
CHACT
SQ_DET
LSIO
HSIO
EXT_SPKR_SEL
AUDIO_PA_ENA
GREEN_LED
4Kx8 BIT
EEPROM
C428
0.1uF
100pF
C427
CS
1
HOLD
7
6
SCK
SI
5
SO
2
VCC
8
4
VSS
WP
3
U407
X25128-2.7
10K
R429
Vddd
MISO
EE_CS
NU
R402
4V_3.3V
Vddd
0
R405
SWB+
C401
0.1uF
TP406
1
R407
68K
R401
0
INT_EXT_Vdd
RESET
C400
.01uF
0.1uF
C402
10uF
C403
3
1
2
Q400
75K
R406
BATT_CODE
UNSWB+
Q405
23
4
1
10K
R416
OFF_BATT_DATA_OUT
A3
6
K1
3
K2
2
K3
1
CR412
A1
4
A2
5
R427
2.7K
BATT_DATA_IN
Vddd
R447
1.5MEG
MECH_SWB+
10K
R448
NU
10uF
C480
R453
100K
R452
NU
NU
R455
R454
R451
1
3
2
15K
Q403
R456
0
1
2
3
CR440
INPUT
8
OUTPUT
1
SENSE
2
SHUTDOWN
3
VTAP
6
U400
LP2951ACMM-3.3
ERROR
5
FEEDBACK
7
GND
4
24K
R476

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Motorola HT Series Specifications

General IconGeneral
BrandMotorola
ModelHT Series
CategoryTwo-Way Radio
LanguageEnglish

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