Motorola GP328 Plus Service Manual page 111

Circuit Board/Schematic Diagrams and Parts List
C525 C528 C529 C530
C526 C527
100pF 100pF
100pF 100pF 100pF 100pF
J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20
J200-21
J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31
J200-32
J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40
C539 C540 C541 C542 C543 C544
NU NU NU NU NU 100pF
ZMY0130796-A
C531 C532 C533 C534 C535 C536 C537 C538
100pF 100pF 100pF
100pF 100pF 100pF 100pF 100pF
R509
NU
C555
100pF
R511
NU
R510
0
C552 C553
C545 C546 C547 C548 C549 C550 C551
100pF 100pF
100pF 100pF 100pF NU 100pF 100pF 100pF
Vdda
R5 Vdda
PTT LVZIF_SEL
SB1
SB2
DACRx
SB3
EMER DATA
VOL
RED_LED
CLK
GREEN_LED
RECEIVER
MECH_SWB+
DEMOD
RTA0
RTA1 RSSI
RTA2
RTA3
RSSI
CLK
16.8MHz
DATA
LVZIF_SEL
CSX
RX_IN RX_INJ
BATT_CODE
LI_ION
5V
R5 5V Vdda SWB+
CSX
DEMOD
MODIN
SWB+
DATA
5V FGU
Vdda
CLK
16.8MHz
LOCK
MODIN
16.8MHz
RX_INJ TX_INJ
SWB+
UNSWB+ 5V
UNSWB+
UNSWB+ 5V
CSX
LOCK
RESET DATA
TRANSMITTER
DACRX
CLK
RESET
TX_INJ
RX_IN
LI_ION B503
UNSWB+ BATT_CODE
B504
S502
SWITCH
1
MECH_SWB+
4 5
CR501 VR439
TAB2
1 12V
7
C502
TAB1
0.47uF 6
2
3 2 1
R507
LVZIF_SEL
0
DACRX
VOL
DATA
C505
6.8V
100pF
VR501
CLK
Vdda
DEMOD
PB502
SWITCH
RSSI
A1
1 B1 2
SB2
3 A2 B2 4
16.8MHz
C522 VR441
.01uF 6.8V
SB3
C523
PB501
.01uF
SWITCH
SWB+
1 A1 B1 2
SB1
3 A2 B2 4
CSX
C554
VR444
.01uF 6.8V
MODIN
SWB+
LOCK
Q502
4 1
2
RED_LED
3 6
R501
680
CR503
1
2
RESET
RTA3
RTA0
RTA1
RTA2
C511 C512 C513 C514
100pF 100pF 100pF 100pF
UHF Controls And Switches Schematic Diagram (sheet 1 of 2)
5B-19
BATTERY_CONTACT
L505
B501
390nH
RADIO_CODE 2
DATA
GND 1
NEG
F501
BATT+ 3
POS
24V
2 BATT-
CONN_J
VR506
C503
6.8V
100pF
PB504
SWITCH
1 A1 B1 2
PTT
3 A2 B2 4
C521 VR440
NU 6.8V
PB505
SWITCH
EMER 1 A1 B1 2
3 A2 B2 4
C520
VR443
.01uF
6.8V
Vdda
R505
IMX1 10K
5
R506
Q505
47K
GREEN_LED
R502
180
3
4
S501
SWITCH
1 PC0
2 PC1
4 PC2
PC3 8
C0 C0
C1
C1
GND GND1
7 9