Motorola GP Series Service Manual page 73

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