Figure 7-69. Hue4039A Power Supply Schematic - Motorola ASTRO Digital XTL 5000 Detailed Service Manual

7-92
DC DISTRIBUTION
VOLTAGE V(operating)/mA(max) SOURCED BY: SUPPLY FOR
FILT_B+ Battery SW_B+ Audio PA
VCC1.8, VCC1.55 1.86 & 1.55 / 100 mA VCC5 Patriot, EIM, Memory
VCC2.85 2.85 / 100 mA VCC5 I/O Ring, EEPOTs
USB, Codec
VCC3 3.0 / 100 mA VCC5 Power Control
VCC5 5.0 / 500 mA SW_B+ T-Gates, VIP S, SB9600
Voltage Translation
1.8V, 3V Regulators
UNSW_5V 5.0 / Battery A+ Emergency Detect/Timer
SW_B+ Battery A+ FILT_B+
SW_B+ Sense Circuit
9V Regulators
9.3V_TX 9.3V / 1A A+ Mic Bias Circuit
EMERGENCY
IGNITION
9V Regulator
SW_A+
U0500
LM2941
4 5
VIN VOUT
2 ON_OFF 1
R0528
ADJ
7.5K
C0531 C0532
0.1uF 1uF
R0529
1.2K
5V Regulator
VCC9
U0503
MC78M05
1
IN OUT
C0516 C0517
0.1uF 4.7uF
2
U0505
9.3V_ABACUS
MC78M05
1
IN OUT
2
C0520 C0521
0.1uF 4.7uF

Figure 7-69. HUE4039A Power Supply Schematic

May 25, 2005
Emergency Sense Block
UNSW_5V UNSW_5V
R0527
0
NP
R0523 R0503
100K 100K
47K
Q0501
47K
C0500
0.1uF
R0516
100K
A+
R0524
10K
NP
C0502
VCC2.85 SW_A+
100pF
VCC9
VCC2.85
R0505 R0506
10K 10K
6 8
C0534
0.1uF
7
5
4
MC33202
R0508
10K U0604-2
SW_B+_ON-OFF
C0533 R0509 C0503
22uF 2K 100pF
47K
Q0505
U0504
47K
53D46
VCC5 2
INPUT OUTPUT
5
CD NC
C0519
.01uF
VCC5_FILT
VCC5
R0519
10
3
C0518
4.7uF
C0535 VCC5_FILT
0.1uF
VCC5
5V_ABACUS
C0537
1uF
C0514
3
150uF
NP
C0522 C0523
4.7uF 0.1uF R0514
0
Schematics, Component Location Diagrams, and Parts Lists: HUE4039A/HUE4043A (UHF Range 1) Main Board
UNSW_5V
R0500 R0502
100K 390K
U0506
SOFT_TURN_OFF
LMC555
4
RESET
3
OUTPUT
2
TRIGGER
6
THRESHOLD
7
DISCHARGE
5
CONTRLVOLTAGE
UNSW_5V 8
VPOS
VCC2.85
C0524 C0525
0.1uF 1uF
R0504
100K
Q0500
47K
47K
R0520
47K
2.85V Digital Supply Regulator
C0505
.01uF
R0511
R0510
33K
VCC5
43K
U0501
LP2951CD
SW_B+_SENSE
8
INPUT OUTPUT
7
FEEDBACK ERROR
3
SHUTDOWN SENSE
C0527 C0512
VTAP
4.7uF 0.1uF
1
4
1.55V Digital Supply Regulator
C0506
.01uF
R0513 R0512
39K
10K
VCC1.55
U0502
LP2951CD
8 1
INPUT OUTPUT
7 5
FEEDBACK ERROR
3 2
SHUTDOWN SENSE
6
C0515 C0510
VTAP
0.1uF 4.7uF
1
TP0500
Q0502
D0501 A+
47K
47K
VR0501 R0531
11V 100K
SW_B+_ON-OFF
1 SW_B+_ON-OFF
R0515
2 4
47K
1K
U0508-1
NC7SZ125 47K
Q0504
C0507
0.1uF
UNSW_5V Supply
A+
R0507
10K
VR0500
5.1V
VCC2.85
1
5
2
6
C0513
150uF
VCC2.85
R0518
10K
1.8V Digital Supply Regulator
C0526
.01uF
R0521
R0522
VCC5_FILT 39K
20K
U0507
LP2951CD
8 1
INPUT OUTPUT
7 5
FEEDBACK ERROR
3 2
SHUTDOWN SENSE
6
VTAP
C0528
0.1uF
Part Series
500
A+
Q0503
SW_A+
EMERG_SENSE
IGNITION_SENSE
UNSW_5V
C0504
0.1uF
LV_DETECT
VCC1.8
VCC2.85
C0529 U0508-2
4.7uF PWR_GND
VCC
C0536
0.1uF GND
MAEPF-27845-O
6881096C74-B