4-34 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics
DIGITAL
Option Board
Keypad/Display
Accessory Connector
EXT_ALARM_OUT
EXT_MIC_PTT
PROG_IN
PROG_I/O
PROG_I/O
PROG_I/O
FILT_SW_B+ D3_3V
D3_3V
FILT_SW_B+
TX_EN
SPI_CLK SPI_MOSI
SPI_MISO
RX_EN
LOC_DIST
SYNTH_CS
SYNTH_LOCK
RSSI
SQ_DET
CH_ACT
ASFIC_CS
HSIO
LSIO
VS_AUDIO_SEL
VS_CS
VS_GAIN_SEL
VS_INT
VS_RAC
RESET
OPT_EN_OPBD
OPT_DATA_R_OPBD
SCI_CH
SHIFT_R_CS
COMM_DATA_SEL_CH
DISPLAY_CS_CH
HOOK_CH
KEYPAD_COL_CH
KEYPAD_ROW_CH
MIC_PTT_CH
BOOT_EN_IN_CH
DNP
DNP
Place capacitors near J2
C612
39.p
C611
39.p
39.p
C610
39.p
C609C608
39.p
C607
39.p
39.p
C606
39.p
C605C604
39.p
C603
39.p
Control Head Connector
J2-1616
J2-1313
J2-1717
J2-55
3
J2-99
J2-88
1
J2-66
J2-3
J2-1
J2-1010
G2
J2-21
G1
J2-22
DNP
NC ELP ONLY
NC ELP ONLY
NC ELP ONLY
SERIAL CLOCK
SERIAL DATA SEND
SERIAL DATA RETURN
VOICE STORAGE INT
VOICE STORAGE RAC
VOICE STORAGE CS
VOICE STORAGE GAIN SELECT
KEYPAD ROW
OPTION BOARD ENABLE
DATA READY/REQUEST
DISPLAY DRIVER CHIP SELECT
DISPLAY_DRIVER_RECOMMEND_/DATA_SEL
KEYPAD COLUMN
PUSH TO TALK
DISPLAY_DRIVER_CS_EN
SHIFT_REG_CS
DISPLAY_DRIVER_COMMAND/DATA_SEL
KEYPAD_COLUMN
KEYPAD_ROW
SCI_PROGRAMMING
SPI_MOSI
BOOT/RESET
VOICE STORAGE AUDIO SELECT
DIGITAL 3.3 VOLT SUUPPLY
ANALOG 3 VOLT SUPPLY
RESET
EXTERNAL_MIC
TX AUDIO SEND
TX AUDIO RETURN
POST-LIMITER FLAT TX AUDIO RETURN
DETECTER AUDIO SEND
UNMUTED RX AUDIO SEND
RX AUDIO RETURN
BACKLIGHT
GND
GND
J3-11 11
J3-9 9
J3-20 20
27
J3-25 25
J3-23 23
26
J3-24 24
J3-27
J3-22 22
J3-28 28
J3-26
J3-21 21
J3-14 14
J3-4 4
J3-12 12
Option Board Connector
28 Pins Connector
J3 - DNP
J3-3232
29
J3-3030
J3-3131
J3-29
13
J3-88
J3-55
J3-13
J3-1919
J3-1010
3
J3-77
J3-1818
1
J3-66
J3-3
J3-1515
J3-22
J3-1
J3-1717
J3-1616
MIC_PTT
HOOK
9.3V
D3_3V
HANDSET_RX_AUDIO
MIC_AUDIO
SPKR-
SPKR+
DISPLAY_DRIVER_RESET
SPI_CLK
GND
GND
2
J2-2
J2-14 14
J2-4 4
19
J2-1111
15
J2-20 20
J2-19
J2-7 7
J2-1818
J2-15
J2-1212
uP_CLK
F1200
9V
R604 0
VOL_INDIRECT
VOX
VSTBY
PROG_I-ACC_C_3
PROG_I-ACC_C_6
PROG_IO-ACC_C_12
PROG_IO-ACC_C_14
PROG_IO-ACC_C_8
PROG_O-ACC_C_4
EMERGENCY_SENSE
ONOFF_SENSE
BATT_SENSE
39.p
39.p
39.p
C631
39.p
C630
39.p
C629
C628
39.p
C633
C632
R615
100.
Place capacitors near J2
1
2
20.0
VR698
1
2
VR697
1
VR699
20.0
20.0
10
13
P1-10
P1-77
P1-1312
P1-1414
P1-88
P1-12
6
P1-9 9
3
P1-6
P1-44
P1-3
11
P1-1515
P1-5 5
P1-11
16
P1-2 2
P1-1 1
P1-16
R602
0
Accessory Connector
1
1
2
20.0
VR694
1
2
1
2
VR695
20.0
VR696
20.0
33.
VR693
1
20.0
VR692
R610
220.
100.n
C678
39.p
C623
39.p
C622
39.p
C621
C620
39.p
R601
1
330.0
39.p
C662
39.p
C627
39.p
C626
39.p
C625
C624
39.p
FILT_SW_B+
Place capacitors near J2
3V
R6030
9V D3_3V
D3_3V
DNP
NC ELP ONLY
Place capacitors near J2
DNP
39.p
C619
39.p
C618
39.p
C617
C616
39.p
39.p
C615
39.p
C614
39.p
C613
39.p
C602
21
R600
0.
Internal SPKR+ Jumper
TO SHEET 1
TO DC & AUDIO
UHF3 (465-495 MHz) 25-40 W Main Circuit (Sht 1 of 2)
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