Motorola Commercial CM Series Service Information page 70

4-30
D3_3V
FILT_SW_B+
FILT_SW_B+
D3_3V
TX_EN SPI_CLK
DIGITAL
UHF1 (403-440MHz) Main Circuit (Sht 1 of 2)
SPI_MOSI SPI_MISO
RX_EN
LOC_DIST
RSSI
SYNTH_CS
SYNTH_LOCK
ASFIC_CS
CH_ACT
SQ_DET
LSIO
HSIO
F1200
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 C604 C605 C606
1n 1n 1n 1n
Place capacitors near J2
VOL_INDIRECT
VSTBY
ONOFF_SENSE
R615
EMERGENCY_SENSE
VOX
BATT_SENSE
Accessory Connector
EXT_ALARM_OUT PROG_O-ACC_C_4
EXT_MIC_PTT PROG_I-ACC_C_3
PROG_IN PROG_I-ACC_C_6
PROG_I/O PROG_IO-ACC_C_8
PROG_I/O PROG_IO-ACC_C_12
PROG_IO-ACC_C_14
PROG_I/O
C633 C632 C630
1n 1n 1n
J3 - DNP
J3-17
17
SERIAL CLOCK
J3-16
16 SERIAL DATA SEND
J3-15
15 SERIAL DATA RETURN
J3-2
2 VOICE STORAGE INT
J3-1
1 VOICE STORAGE RAC
J3-6
Option Board Connector
6
VOICE STORAGE CS
J3-3
28 Pins Connector
3 VOICE STORAGE GAIN SELECT
J3-7
NCELP ONLY 7 KEYPAD ROW
J3-18
18 OPTION BOARD ENABLE
J3-19
19 DATA READY/REQUEST
NC ELP ONLY J3-10
10
DISPLAY DRIVER CHIP SELECT
9V
R604 0. J3-8
8 DISPLAY_DRIVER_COMMAND/DATA_SEL
DNP J3-5
NC ELP ONLY 5 KEYPAD COLUMN
J3-13
13 PUSH TO TALK
J2-1
1 DISPLAY_DRIVER_CS_EN
J2-6
6 SHIFT_REG_CS
J2-3
3 DISPLAY_DRIVER_COMMAND/DATA_SEL
J2-9
9 KEYPAD_COLUMN
J2-8
8 KEYPAD_ROW
J2-17
17 SCI_PROGRAMMING
J2-5
5 SPI_MOSI
J2-10 G1 G2
10 BOOT/RESET
J2-16
16 MIC_PTT
J2-13
13
HOOK
DNP DNP
Control Head Connector
C607 C608 C609 C610 C611 C612
1n 1n
1n 1n 1n 1n
P1-4 P1-1
4 1
P1-3
P1-16
3 16
100. P1-6 P1-2
6 2
P1-10
10
P1-8 P1-5
8 5
P1-12 P1-11
12 11
P1-14 P1-13
14 13
P1-7 P1-15 R602
7 15
P1-9
9
Accessory Connector
Place capacitors near J2
C629 C628 C631 VR699 VR698
VR696
VR697
1n 1n 1n 20.0
20.0
20.0
20.0
UHF 1-25W PCB 8486684Z03 (Rev. B) / Schematics
3V
D3_3V
J3-4
VOICE STORAGE AUDIO SELECT 4
J3-12
DIGITAL 3.3 VOLT SUPPLY 12
J3-21 R603 0.
ANALOG 3 VOLT SUPPLY 21
J3-14
DNP
RESET
14
J3-22
EXTERNAL_ MIC
22
J3-28
TX AUDIO SEND 28
J3-26
TX AUDIO RETURN 26
J3-24
POST-LIMITER FLAT TX AUDIO RETURN 24
J3-27
DETECTOR AUDIO SEND 27
J3-25
UNMUTED RX AUDIO SEND 25
J3-23
RX AUDIO RETURN 23
J3-9
BACKLIGHT 9 NC ELP ONLY
J3-20
20
GND
J3-11
GND 11
9V
D3_3V
J2-12
9.3V 12
J2-7
D3_3V 7
J2-18
18
HANDSET_RX_AUDIO
J2-15
MIC_AUDIO 15
J2-20
SPKR- 20
J2-19
SPKR+ 19
J2-2
DISPLAY_DRIVER_RESET 2
J2-4
SPI_CLK 4
J2-11
11
GND
J2-14
GND 14
C602 C613 C614 C615 C616 C617 C618 C619
1n 1n 1n 1n 1n 1n 1n 1n
Place capacitors near J2
FILT_SW_B+
Place capacitors near J2
VR692
20.0
R601 330.0
0.0
C662
1n
R610 220
C624
1n
C627 C626 C625 C623
1n 1n 1n 1n
C622 C621
1n 1n
VR695 VR694
33. 20.0
VR693 VR692
33. 20.0
DNP
R600
0.
C620 C678
1n 100.n