Motorola GP series Detailed Service Manual

1-12 THEORY OF OPERATION
6.0 Voice Storage (GP1280 Only)
(Refer to Figure 2-7 and the UHF Voice Storage schematic diagram)
The Voice Storage feature is offered as standard in the GP1280 and as an Option board for
GP340/GP360/GP380 and GP640/GP680 models.
The Voice Storage feature enables users to:
■ Record and Playback Personal Memo (Reminders, Notes, etc.).
■ Send over-the-air an “Out-Of-Office” message when an incoming call is received but is not
available to take up call.
■ Over-the-air recording of important voice message being received.
Figure 1-7 Audio path for voice storage connection to interface connector
VCCD
VSSA1 VSSA2 VSSA3
VSSD
XCLK
SCLK
SS
VCCA
MOSI
AMCAP
ANA_NEG
ANA_POS
AUDOUT
MISO
U700
ISD33000
C701 C702
1uF
100pF
C703
0.1uF
CR700
Vddd
C704
0.1uF
CLK
MISO
DATA
VS_CS
R701
18K
R702
18K
C707
0.1uF
U710-2
MC74HC4066
CNTL
VDD
VSS
560K
R708
Vddd
0.1uF
C719
RX_AUD_RTN
VS_GAINSEL
C713
0.1uF
FLAT_RX_SND
CNTL
VDD
VSS
U710-3
MC74HC4066
CNTL
VDD
VSS
U710-1
MC74HC4066
C717
0.1uF
R710
470K
SWB+
Vddd
0.1uF
C714
R717
10K
R716
1.8K
LM2904
U720-1
C710
33uF
C705
0.1uF
Vddd
0.1uF
C708
1000pF
C709

Motorola GP series Specifications

General

Brand	Motorola
Model	GP series
Category	Radio
Language	English