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Motorola Cm Vhf1 136 162mhz Low Power Manual

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Page 41

Chapter 4
VHF1 PCB/ SCHEMATICS/ PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards
1.1 VHF1 and Controller Circuits
The VHF circuits are contained on the printed circuit board (PCB) which also contains the Controller 
circuits. This Chapter shows the schematics for both the VHF circuits and the Controller circuits. The 
PCB component layouts and the Parts Lists in this Chapter show both the Controller and VHF circuit 
components. The VHF and Controller schematics and the related PCB and parts...

Page 42

4-2VHF1 PCB/ SCHEMATICS/ PARTS LISTS
THIS PAGE INTENTIONALLY LEFT BLANK 

Page 43

VHF1 1-25W PCB 8486672Z01 / Schematics4-32.0 VHF1 1-25W  PCB 8486672Z01 / Schematics
73D02968C63-0
SHEET 1 OF 8 TX_EN
TX_INJ9VCOMP_B+
DET_VFWD DET_VRVSFILT_SW_B+
INTEGRATOR
PA_BIAS PA_CURRENTPWR_SET
RX RX_EN TX_EN
TX_INJ
9V FILT_SW_B+
9V COMP_B+
DET-VFWD DET_VRVS
FILT_SW_B+
INTEGRATOR
PA_BIAS PA_CURRENTPWR_SET
RX RX_EN
 VHF1 Interconnection between Main Board and Power Amplifier Compartment 

Page 44

4-4VHF1 1-25W PCB 8486672Z01 / Schematics
8486672Z01_REV O
C301 C302
C303
C304C305
C306
C307C308
C309 C310
C311
C312
C313 C314
C315 C316
C317
C318 C319
C320
C322
C335
C336 C352
C353
C356C357
C359
C360
C364
C367
C402
C406C411
C414 C418
C490
C602
C603C604
C605 C606
C607C608
C609 C610C611
C612
C613C614
C615C616
C617
C618C619
C620
C621 C622 C623
C624C625
C626 C627
C628 C629 C630C631 C632 C633
C662 C678
C1001
C1004 C1005
C1007
C1008 C1009
C1011C1012 C1013C1014
C1015
C1016C1017
C1018
C1019
C1020C1021...

Page 45

VHF1 1-25W PCB 8486672Z01 / Schematics4-5
8486672Z01_REV O
C300
C321C323
C324
C325 C326
C327
C328
C329
C330 C331
C332
C333
C334
C337
C338
C339 C340
C341C342
C343
C344C345
C346
C347C348
C349 C350
C351
C354
C355
C361C362C363
C365
C366
C400C401C403
C404
C405
C407
C408
C410
C412
C413
C415 C416
C417
C421
C422 C423
C1000
C1002
C1003
C1006 C1010
C1025 C1027
C1028
C1029 C1032C1035
C1036 C1038
C1040
C1042
C1043
C1045
C1046
C1048
C1050
C1051 C1053
C1054
C1055
C1056 C1058
C1059
C1060C1061
C1062
C1066
C1067 C1070...

Page 46

4-6VHF1 1-25W PCB 8486672Z01 / Schematics
Option Board Connector
Accessory Connector Control Head Connector28 pins connector
TX AUDIO SEND
DETECTOR AUDIO SENDTX AUDIO RETURN
UNMUTED RX AUDIO SEND POST-LIMITER FLAT TX AUDIO RETURN
RX AUDIO RETURN OPTION BOARD ENABLE
DATA READY/REQUESTRESET DIGITAL 3.3 VOLT SUPPLY
GND VOICE STORAGE INT
GND EXTERNAL MIC ANALOG 3 VOLT SUPPLY SERIAL CLOCK
SERIAL DATA RETURN SERIAL DATA SEND
PUSH TO TALK DISPLAY DRIVER CHIP SELECT
NC BACKLIGHT KEYPAD ROW
KEYPAD COLUMN...

Page 47

VHF1 1-25W PCB 8486672Z01 / Schematics4-7
DC Connector
DC & AUDIO
TO SHEET 1
PEDS FOR GND CONTACTS CONTACTS FOR PA CLIP
73D02968C63-0
SHEET 4 OF 8
9R
SPI_MOSISPI_CLK
ASFIC_CS
RX_AUDIO_RETURN_OPT_BRD CH_ACT
5V
uP_CLK F1200 HSIO
LSIO
3V
VS_MICPWR_SET
GND1
9V 5V
DET-VFWD
1
GND
1
GND
3V
PLTD_HOLE3_5x7_0_TRIMMEDM7
1
GND
TP3
TEST_POINT1
FILT_SW_B+
9V
P2-1
1
M110
P2-2
2 D3_3V5V
1M112
GND
16.8MHz3V 5V
9R
MOD_IN
RX_INJ SPI_CLK
SPI_MOSI
SYNTH_CS
SYNTH_LOCKTX_INJ
BOARD HOLES (SOURCE) (SOURCE)(SOURCE)
(SOURCE)...

Page 48

4-8VHF1 1-25W PCB 8486672Z01 / Schematics
120. R102 10u
MRF1513’s Thermal  pad
DNP
DNPDNP
(SOURCE)
0.8*25 1.542*4
TO SHEET 2
V_CNTRL DNP
DNP
1n
1019447
V_CTRL_PREDRIVERRX_EN RX_EN 9V FILT_SW_B+PA_BIASCOMP_B+
TX_INJ
Q10522n
22n1IF110
R182
10.KC1089 1019447
C1039
1
TP150 TEST_POINT L110
12.0n22.K
L121
FLT_9V
C1069
DNP
1019447
1n
1nC1068
1nC1070
C1029 C1066
100n 1n C1103
33n
C1120
33p C1117
47p 33p C1119 C1118
33p
C1031
22n L105
68.n L104
68.n
L107
4.22n
51.0 R105
51.0R123
R1062.7
1n C1062 C1061
1n...

Page 49

VHF1 1-25W PCB 8486672Z01 / Schematics4-9
PWR_SET
Final_cur_sense
PA_FILT_B+
TX_ENPA_CURRENT
FILT_SW_B+_PA
TO SHEET 1
73D02968C63-0
DNP DNP
DNP
DNP
DNPDNP
DNP
DNP DNP
Place near both sides of PA shields
DNP
DNP
PA’s Temp.  Sensor
Coupler
width 2.032
7.5
SHEET 2 OF 8
1.2u
RX
R172 C1013
13.p C1008
120.00p C1004
150.p C1005L126
J11-5
G2
S3
S4GND1
GND2S2 S1
V_forward
10.p C1007C102118.0n L116
C1009
100.p 100.p L115
18.0n
150.p G
56.p
D
C1121 C1019
V_reverse
Final_cur_sense
V_REF_OPAMP DET_VFWD
INTEGRATOR...

Page 50

4-10VHF1 1-25W PCB 8486672Z01 / Schematics
4
1
VCON 46
ADAPTSW
AVDD20
AUX43 AUX32 AUX21 AUX148
2.7p
AGND 22
DVDD36 DGND 6
DATA
3V 3V
7 C2005
CLK 8
CEX 9
CCOMP 42BIAS2 39BIAS1 40
NC1MODOUT41
MODIN 10
C2053
100p 4
1LOCKIOUT43
INDMULT16 IADAPT45 FREFOUT19
PRE_GND 33
PREIN 32
5
PD_VDD
PD_GND 44
NC3 31NC2
TP201
TEST_POINT 29 17
SFOUT SFIN 30
SFCAP 26
SFBASE 27
REFSEL 18PVREF 35
PRE_VDD34
VMULT214 VMULT115VCP47
VBPASS 21
TEST238 TEST137
28
100.n U200
FRACN_63A27XTAL224 XTAL123
C2020
100n WARP25
1TP200...
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