Figure 9-110.Uhf (450-527 Mhz) Controls And Switches Schematic Diagram - Motorola HT Series Detailed Service Manual

UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8485641Z06 / 8485677Z03)
Vdda
R5 Vdda
LVZIF_SEL
DACRx
DATA
CLK
RECEIVER
DEMOD
RSSI
16.8MHz
RX_IN RX_INJ
5V
R5 5V Vdda SWB+
CSX
MODIN
DATA
FGU
CLK
LOCK
16.8MHz
RX_INJ 4V_3.3V TX_INJ
4V_3.3V
UNSWB+ 5V
UNSWB+ 5V
CSX
DATA
TRANSMITTER
CLK
RESET
RX_IN TX_INJ
LI_ION B503
B504
MECH_SWB+
4
LVZIF_SEL
C502
0.47uF
DACRX
3
DATA
R507
0
CLK
VOL
DEMOD
VR501
C505
RSSI 6.8V
100pF
Vdda
16.8MHz
2
SB1
VR440
C521
6.8V
.01uF
2
SB2
SWB+
VR441
C522
6.8V
.01uF
CSX
MODIN 2
SB3
VR442
C523
6.8V
.01uF
LOCK
2
PTT
VR444
6.8V
RESET
L505
390nH
RADIO_CODE
UNSWB+
BATT_CODE
F501 BATT +
S502
24V
SWITCH
5
1
CR501
VR439 C503
VR506
10V
100pF
6.8V
2
2 1
PB501
SWITCH
1
PB502
SWITCH
1
PB503
SWITCH
1
PB504 PB505
SWITCH SWITCH
1 2
EMER
C520
VR443
.01uF
6.8V
RTA3
RTA0
RTA1
RTA2
B501
BATTERY_CONTACT
2 DATA
1 NEG
3 POS
CONN_J
BATT —
Vdda
SWB+
R505
Q502
IMX1 10K
4 1
2 5
RED_LED R506
Q505
3 6
1
R501 R502
180
680
CR503
3
1
4
2
S501
SWITCH
1 PC0
2
PC1
4 8
PC2
PC3
C0
C0
C1
C1
GND GND1
7 9
C511
C512 C513
C514
100pF
100pF 100pF 100pF
Figure 9-110. UHF (450-527 MHz) Controls and Switches Schematic Diagram
9-191
47K
GREEN_LED
FL0830741O