Figure 9-158.Controller Asfic/On_Off Schematic Diagram - Motorola HT Series Detailed Service Manual

9-252
C358
5V
NU
C328
R372
NU
NU
U303-1
2 8
LM2904
DISC_OUT
1
R371
IF_DISC_OUT 3
NU 4
C383
NU
Vdda
R377
NU
C337
R378
NU NU
Figure 9-158. Controller ASFIC/ON_OFF Schematic Diagram
R370
0
C359
NU
R374
NU
U303-2
6 8
NU LM2904
7 NU
R373
5
NU 4 R375
NU
C390
NU
R376
NU
1
TP410
TP406
C405 100pF
800 MHz only
Vdda
C410
0.1uF
R475
0
C408
100pF
C407
0.1uF
URX_SND
R425
MECH_SWB+
30K
C479
0.1uF
RX_AUD_RTN
R445
24K
C411
Vdda
0.1uF
R449
24K
1
VDDA
2
DISC
3
GNDA CLK168
4
DACRx DACU
5
VS_GAINSEL DACR
U404
6
VS_AUDSEL DACG
09Z41
7
VOX VOX
8
PLCAP
9
SQIN
10
UIO VDDSYN
FLAT_RX_SND
11
VDDDAC
C430 12
AGCCAP
0.1uF
C414 C415 C452 C451
0.1uF 0.1uF 4.7uF .022uF
UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8415235H01, 8415235H05)
4V_3.3V
R405 R402
0
NU
SWB+
Vddd
Q400
1 3
C401
C400
0.1uF
R401 100pF
0
U400
LP2951ACMM-3.3
C402 C403
8 1 0.1uF 10uF
INPUT OUTPUT
7 5
FEEDBACK ERROR
R407 68K 3 2
INT_EXT_Vdd SHUTDOWN SENSE
6
VTAP
Used for Lowband Only
C406 0.1uF
R476
C409
24K
0.1uF
RESET
R479
C498
510
0.1uF
R448 R451
10K 15K
2
R455
1 R456 NU CR440
R447 R452
0
C480 3
R453 100K Q403
100K
10uF NU 2
1
R454
NU
36
TXRTN
TX_AUD_RTN
35
GCB3
RED_LED
34
16.8MHz C419
33
NU
VDDD
32
VDDCP
31
GNDD
30 F1200
GNDD0
29
F1200 F1200
28
SYN
SYN
27
C416
26
NC 0.1uF
25
PLCAP2
Vdda
C422
C420 C421
.01uF 0.1uF 0.1uF
R413
0
R400
47K Vddd
5V
C427 C428
100pF 0.1uF
R429
10K
EE_CS
U407
8 X25128-2.7
6 VCC
SCK
1
4Kx8 BIT
CS
3 EEPROM 2
WP MISO
SO
7
HOLD
5
SI
4
Uhf band 1
ASFIC
BATT_CODE
2 Vddd
UNSWB+
1
R406 R427
75K 2.7K
CR412
3 4
K1 A1
BATT_DATA_IN
2 5
K2 A2
1 6
K3 A3
4
Q405
1 2 3
R416
10K
OFF_BATT_DATA_OUT
3