Uhf2 (438-470 Mhz) 25-40 W Main Circuit (Sht 1 Of 2) - Motorola CM200 Service Manual

4-34
FILT_SW_B+
FILT_SW_B+

UHF2 (438-470 MHz) 25-40 W Main Circuit (Sht 1 of 2)

D3_3V
D3_3V TX_EN SPI_CLK SPI_MOSI
SPI_MISO
RX_EN
LOC_DIST
RSSI
SYNTH_CS
SYNTH_LOCK
ASFIC_CS
CH_ACT
SQ_DET
LSIO
HSIO
F1200
DIGITAL uP_CLK
VS_AUDIO_SEL
RESET
VS_INT
VS_RAC
VS_CS
VS_GAIN_SEL
OPT_EN_OPBD
OPT_DATA_R_OPBD
DISPLAY_CS_CH
SHIFT_R_CS
COMM_DATA_SEL_CH
KEYPAD_COL_CH
KEYPAD_ROW_CH
SCI_CH
BOOT_EN_IN_CH
MIC_PTT_CH
HOOK_CH
C603
39.p
VOL_INDIRECT
VSTBY
ONOFF_SENSE
EMERGENCY_SENSE
VOX
BATT_SENSE
Accessory Connector
PROG_O-ACC_C_4
EXT_ALARM_OUT
EXT_MIC_PTT PROG_I-ACC_C_3
PROG_IN PROG_I-ACC_C_6
PROG_I/O PROG_IO-ACC_C_8
PROG_IO-ACC_C_12
PROG_I/O
PROG_I/O PROG_IO-ACC_C_14
C633
39.p
17 J3-17 SERIAL CLOCK
16 J3-16 SERIAL DATA SEND
15 J3-15 SERIAL DATA RETURN
2 J3-2 VOICE STORAGE INT
Option Board Connector
1 J3-1 VOICE STORAGE RAC
28 Pins Connector
6 J3-6
VOICE STORAGE CS
3 J3-3 VOICE STORAGE GAIN SELECT
NC ELP ONLY
7 J3-7 KEYPAD ROW
18 J3-18 OPTION BOARD ENABLE
19 J3-19 DATA READYREQUEST
9V
R604 0 NC ELP ONLY 10 J3-10
DISPLAY DRIVER CHIP SELECT
8 J3-8 DISPLAY_DRIVER_COMMAND/DATA_SEL
NC ELP ONLY 5 J3-5
DNP KEYPAD COLUMN
13 J3-13 PUSH TO TALK
1 J2-1 DISPLAY_DRIVER_CS_LN
6 J2-6 SHIFT_REG_CS HANDSET_RX_AUDIO
3 J2-3 DISPLAY_DRIVER_COMMAND/DATA_SEL
9 J2-9
KEYPAD_COLUMN
8 J2-8 KEYPAD_ROW
17 J2-17
SCI_PROGRAMMING
5 J2-5 SPI_MOST
10 J2-10 BOOT/RESET
J2-21 J2-22
G1 G2
DISPLAY_DRIVER_RESET
16 J2-16 MIC_PTT
13 J2-13 HOOK
C604 C605 C608 C610 C611
C606 C607 C609
39.p 39.p 39.p 39.p 39.p 39.p 39.p 39.p
Control Head Connector
C612
DNP DNP
39.p
Place capacitors near J2
P1-1 1
4 P1-4 P1-16 16
P1-2 2
3 P1-3
P1-10 10
6 P1-6
R615
P1-5 5
100.
P1-11 11
8 P1-8
12 P1-12 P1-13 13
P1-15 15
14 P1-14
7 P1-7 P1-9 9
C632
39.p
Accessory Connector
C631 C630 C629 C628
39.p
39.p 39.p 39.p
Place capacitors near J2
VR695
VR699
VR698 VR697 VR696
20.0
20.0 20.0 20.0
UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics
J3 - DNP
D3_3V 3V
VOICE STORAGE AUDIO SELECT J3-4 4
J3-12 12
DIGITAL 3.3 VOLT SUPPLY
0 R603
ANALOG 3.3 VOLT SUPPLY J3-21 21
DNP
J3-14 14
RESET
EXTERNAL_MIC J3-22 22
J3-28 28
TX AUDIO SEND
TX AUDIO RETURN J3-26 26
POST-LIMITER FLAT TX AUDIO RETURN J3-24 24
DETECTOR AUDIO SEND J3-27 27
UNMUTED RX AUDIO SEND J3-25 25
J3-23 23
RX AUDIO RETURN
BACKLIGHT J3-9 9 NC ELP ONLY
J3-20 20
GND
GND J3-11 11
9V D3_3V
J2-12 12
9.3V
D3_3V J2-7 7
J2-18 18
MIC_AUDIO J2-15 15
SPKR- J2-20 20
SPKR+ J2-19 19
J2-2 2
SPI_CLK J2-4 4
GND J2-11 11
GND J2-14 14
C602 C613 C614 C615 C616 C617 C618 C619
39.p 39.p 39.p 39.p 39.p 39.p 39.p 39.p
DNP
Place capacitors near J2
R600
0.
FILT_SW_B+
R601 R610
330.0
220.
R602
0
C662 C624 C623 C622 C621 C620 C678
39.p 39.p 39.p 39.p 39.p 39.p 100.n
C627 C626 C625
39.p 39.p 39.p
Place capacitors near J2
VR693 VR692
20.0
33.
20.0
VR694
20.0