Motorola GP series Service Manual

UHF2 PCB 8485677Z02 (GP1280) Schematics 4-29
VCCD
VSSA1 VSSA2 VSSA3
VSSD
XCLK
NC6
NC7
NC8
NC9
RAC
SCLK
SS
VCCA
MOSI
NC1
NC10
NC11
NC2
NC3
NC4
NC5
AMCAP
ANA_NEG
ANA_POS
AUDOUT
INT
MISO
15
16
19
21
23
3
27
28
4
13
14
20
6
2
8
9
11
10
22
24
25
5
26 7 1 18 17 12
U700
ISD33000
C701 C702
1uF
100pF
C703
0.1uF
12
4
CR700
53
Vddd
C704
0.1uF
IF_CLK_1_VOICE
CLK
IF_VS_INT_1_VOICE
IF_VS_RAC_1_VOICE
IF_MISO_1_VOICE
IF_VS_CS_1_VOICE
IF_DATA_1_VOICE
VS_INT
MISO
DATA
VS_RAC
VS_CS
C706
R701
18K
R702
18K
C707
0.1uF
NU
U710-2
MC74HC4066
5
CNTL
43
VDD
14
7
VSS
560K
R708
Vddd
IF_PRIME_ID_1_VOICE
0.1uF
C719
IF_VS_GAINSEL_1_VOICE
IF_RX_AUD_RTN_1_VOICE
RX_AUD_RTN
PRIME_ID
VS_GAINSEL
1K
R703
power
1
SHIELD
SH701
SHIELD
SH700
1
C713
0.1uF
IF_FLAT_RX_SND_1_VOICE
FLAT_RX_SND
6
CNTL
89
14
VDD
7
VSS
U710-3
MC74HC4066
13
CNTL
12
14
VDD
7
VSS
U710-1
MC74HC4066
C715
0.1uF
IF_EXT_MIC_1_VOICE
EXT_MIC
U710-4
MC74HC4066
12
CNTL
11 10
14
VDD
7
VSS
IF_VS_AUDSEL_1_VOICE
VS_AUDSEL
C718
6
5
7
8
4
1000pF
R707
LM2904
U720-2
R706
56K
5.1K
.01uF
C711
1MEG
R709
C717
0.1uF
R710
470K
SWB+
Vddd
0.1uF
C714
R717
10K
R716
1.8K
2
3
1
8
4
LM2904
U720-1
C710
33uF
IF_Vddd_1_VOICE
C705
0.1uF
Vddd
0.1uF
R704
C708
39K
R705
39K
1000pF
C709
3.30V
3.30V
3.15V
3.30V
4.375mV
3.29V
3.11V
UHF2 (450-527 MHz) GP1280 - Voice Storage Schematic
ZMY0130190-A

Motorola GP series Specifications

General

Operating Temperature	-30°C to +60°C
Frequency Range	136-174 MHz
Number of Channels	16
Channel Spacing	12.5 kHz / 25 kHz
Battery Life	8 hours (with standard battery)
Operating Voltage	7.5V DC
Ingress Protection	IP54
MIL-STD	810 C, D, E, F