Figure 9.1-24. Pmld4303A/ Pmld4264B Rf Controls Schematic - Motorola XTS 2500 Service Manual

VHF Schematics, Board Overlays, and Parts Lists
RAW_B+
3A
24V
UNSW_B+_1
F500
POS
B500 NEG
DATA
L500
BATT_CODE
390nH
VR500
6.8V
C519
330pF
R522
47K
TG2_SEC_CLEAR
R523
10K 10K 10K 10K
47K
R513 R514 R515 R516
RTA0
RTA1
RTA2
RTA3
VR508
5.6V
C500 C501 C502
910pF 910pF 910pF
VR509
5.6V
VR510
5.6V
VR511
5.6V
6816985H01-F
ABACUS_3V
2.2uH
L501
MECH_SW
C505
0.47uF
C504
470pF
D500
C525 C524 10V
1000pF 33uF VR501
VR513
5.6V VR512
5.6V
VOL
470pF
10K
RFSW_B+
R518
C1
S500
SWITCH
A B
A B
1 4
S1 S4
C2 C3
C2 C3
8 2
R519
S8 S2
47K
C503
910pF
GREEN_LED
RED_LED
10K
R505
S501
SWITCH
4 HIGH 3
2
5 1
LOW
C520
VR502
6.8V
R503 R504
390 510
D501
LNJ115W8P0MT
Q501
S502
SWITCH
4
EMERGENCY
7
C551
.01uF
R512
47K
VR514
6.8V
100
1
R507
3
PTT
C550
.01uF
VR503
6.8V
R525
10K
100
R508
SB3
VR504
6.8V
C507
.01uF
R526
10K
100
R509
SB2
VR505
6.8V
C508
.01uF
10K
R517
S506
SWITCH
100
R510
2
4
SB1
VR506
6.8V
C509
.01uF

Figure 9.1-24. PMLD4303A/ PMLD4264B RF Controls Schematic

9.1-25
2
1
TAB5 TAB1
S503
SWITCH
A1 B1 2
B2 4
A2
S504
SWITCH
1 A1 B1 2
3 A2 B2 4
S505
SWITCH
1 B1 2
A1
3 B2 4
A2
B1 A1 1
B2 A2 3
February 14, 2012