Motorola CP040 Detailed Service Manual page 422

3-32
POS
J301 NEG
F301
DATA
BATT_CHARGE
C302
C305
390pF
$V
100pF
VOLUME
ON_OFF
UHF3 (465-495 MHz) DC Regulation Schematic Diagram PCB No. 8416847H01-A/H02-B
3A
NC
C301
390pF D301
VR301
MMBZ5250B
20V
NC
C306
VR302
$V
.01uF
MMBZ5250B
20V
D3_3V
R506
S444
100
SWITCH
3 HIGH 4
2
R508
100K
1 5
SWB+
LOW
R507
6 7
100
R510
330K
1 6
2
3 4
Q494
1
USWB+
1
VIN
3
CTRL
4
BYPASS
C304 C310
C303
.01uF .01uF
33uF
RX_ENA
TX_ENA
2 3
1
Q493
R509
100K
U320
LP2986
4
INPUT
8
SHUTDOWN
6
NC SENSE
3
NC TAP
TP302
1
VIN
3
CTRL
4
BYPASS
C331
.01uF
UHF3 PCB 8416847H01-A/H02-B Schematic Diagrams
U310
TK71750S
5
VOUT
2
C313
C311
C312
.01uF
.018uF
10uF
D3_3V
R313 R312
10K 20K
Q313
C323
150pF
R322
100K
5
OUTPUT
7
ERROR
2
FEEDBACK
R320 C321
1
C320
10uF
330K
.018uF
1%
R321
200K
1%
U330
TK71730S
5
VOUT
C333
.01uF
2
C334
10uF
5V
5R
Q311
C314 R310
1200pF 100K
C315
1200pF
5T
R311
Q312
100K
C316
1200pF
RESET
D3_3V
D3_3V
C322
.01uF
3V