Figure 9-278.900 Mhz Controls And Switches Schematic Diagram - Motorola HT Series Detailed Service Manual

900 MHz Circuit Board/Schematic Diagrams and Parts List (PCB 8471203M01)
MECH_SWB+
0.47uF
VOL
6.8V
VR501 47pF
SB1
C521
VR504
.01uF
6.8V
PTT
VR507
6.8V
MER
VR508
C520
.01uF 6.8V
SWITCH
S502
C502
TAB2
7
TAB1
6
R507
0
C505
Vdda
PB501
SWITCH
2 1
IN OUT
PB504
SWITCH
2 1
IN OUT
PB505
SWITCH
2 1
IN OUT
UNSWB+
VR502
1
C526 C530 C524
12V
CR501
68pF 10uF 15pF
2
C527 C528
68pF 68pF
RED_LED
RTA3
RTA0
RTA1
RTA2
C511
47pF
RADIO_CODE
BATT_ID
F501 CONN_J
DATA
3A
BATT-
NEG
1 2
POS
BATT+
C525
68pF
C503
56pF
SWB+
Vdda
R505
Q502
10K
IMX1
4 1
2 5
Q505
3 6
R501 R502
680 180
CR503
1 3
2 4
S501
SWITCH
1
PC0
2
PC1
4 PC2
C0 C0
C1
C1
GND
7
C512 C513 C514
47pF 47pF 47pF
Figure 9-278. 900 MHz Controls and Switches Schematic Diagram
9-473
B501
BATTERY_CONTACT
R506
47K
GREEN_LED
8
PC3
GND1
9