Ntn7512D/E, Ntn7513E, Ntn7857D/E And Ntn7858D/Econtroller Board Power Section Schematic Diagram - Motorola HT-1000 Service Manual

MECH_SWB+
CR704
47K
1
B+CNTL
47K
2
SW_B +
CR701
R714
68
OPT_B+|BOOT_SEL
C735
470pF
AUPA_EN
RX_AUDIO
EXT_SPKR_SEL
SW_B +
Main Power Switch
R753
* *
UNSW_B+
U712
1 8
3 7
2 6
R747 5
150K
Q703
3
Vaud Regulator
Vaud
Q701
C734 C733
10uF 0.1uF
SW_B +
C731 C732
0.1uF 10uF
D1
EN_AMP AMP2OUT
E2
EN_INT_MI C AMP3OUT
F3
EN_MIC
U702
C6
AMPIN
D5
AUDIO PA
PLIN PLOUT
F4
FREQCOMP REGOUT
F5
REG MICAMPOUT
E1
INT_MIC_IN
D2
EXT_MIC_IN BOOTCAPC1
C1
EXT_INT_SPKR BOOTCAPC2
B2
INT_SPKR BOOTCAPC3
C730
4700pF
Vdd Regulator
L704
270nH
8 1
INPUT OUTPUT
7 5
FEEDBACK ERRO R
C767
3 2
SHUTDOWN SENSE
0.1uF
6
5V_TAP
U708
4
CR706
VR702
C727
10V
1uF
C726
0.33uF
A3
A5
VR701
C725
10V
1uF
C728
0.33uF
D6
NC
E6
F2
NC
B6
B1
C2
C729
1uF
NTN7512D/E, NTN7513E, NTN7857D/E AND NTN7858D/E
CONTROLLER BOARD POWER SECTION SCHEMATIC DIAGRAM
Vdd
R738
22K
PWR_RST
VR714
C770
C768 C771 6.8V
330pF 10uF 0.1uF
EXT_SPKR
C703
470pF
SPKRCOM
C705
470pF
INT_SPKR
C707
470pF
63B81097C20-O
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