Motorola GP328 Detailed Service Manual

Circuit Board/Schematic Diagrams and Parts List 6B-31
VOL
MECH_SWB+
Vdda
6.8V
VR501
HIGH
TAB1
6
TAB2
7
2
mgc_comps
4
1
LOW
5
3
S502
C502
0.47uF
C505
100pF
UNSWB+
1000pF 1000pF
C535
100pF
C503
CR501
VR439
10V
21
24V
F501
BATT_CODE
SB1
EMER
LI_ION
VR506
6.8V
L505
390nH
B501
DATA
NEG
POS
B503
B504
.01uF
C520
.01uF
C521
1
2
SWITCH
PB505
VR440
NU
6.8V
PB501
1
2
SWITCH
PB504
12
SWITCH
NU
6.8V
VR444
PTT
PB502
1
2
SWITCH
VR441
NU
6.8V
C522
.01uF
SB2
PB503
1
2
SWITCH
NU
6.8V
VR442
C523
.01uF
SB3
M100
M101
SWB+
Vdda
4
3
47K
R506
R505
10K
Q505
5
1
6
2
Q502
switch
RED_LED
R501
680
680
CR503
24
13
R502
180
180
RTA2
RTA0
RTA1
RTA3
S501
SWITCH
GND1
PC0
PC1
PC2 PC3
C0
C1
GND
1
2
48
C0
C1
9 7
100pF
C511
C512
100pF
C513
100pF 100pF
C514
o
switch
GREEN_LED
VHF Controls And Switches Schematic Diagram

Motorola GP328 Specifications

General

Channel Capacity	16 channels
Operating Temperature	-30°C to +60°C
Sealing	IP54
Frequency Range	136-174 MHz (VHF), 403-470 MHz (UHF)
Power Output	1-5W (VHF), 1-4W (UHF)
Dimensions	137 x 57.5 x 37.5 mm
Power Supply	7.5V
Battery Life	8 hours (High Power), 11 hours (Low Power) with standard NiMH battery
Weight	420g (with standard battery)