Ncn6147A/B, Ncn6150A/B, Ntn7091D, Ntn7620E, Pmcn6147B And Pmcn6150B Controller Board Power Section Schematic Diagram - Motorola HT-1000 Service Manual

MECH_SWB+
Q703
CR704
47K
1
B+CNTL
47K
2
Vaud Regulator
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
3
Vaud
Q701
C734 C733
10uF 0.1uF
SW_B+
C731 C732
0.1uF 10uF
D1
EN_AMP AMP2OUT
E2
EN_INT_MIC AMP3OUT
F3
EN_MIC
C6
AMPIN
D5
PLIN PLOUT
F4 U702
FREQCOMP REGOUT
F5
AUDIO PA
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 U708 1
INPUT OUTPUT
7 5
FEEDBACK ERROR
C767 3 2
SHUTDOWN SENSE
0.1uF
6
5V_TAP
4
CR706
VR702
C727
1uF 10V
C726
0.33uF
A3
A5
VR701
C725
10V
1uF
C728
0.33uF
D6
NC
E6
F2
NC
B6
B1
C2
C729
1uF
NCN6147A/B, NCN6150A/B, NTN7091D, NTN7620E, PMCN6147B AND PMCN6150B
CONTROLLER BOARD POWER SECTION SCHEMATIC DIAGRAM
Vdd
R738
22K
PWR_RST
VR714
C771
C770
C768 6.8V
0.1uF
10uF
330pF
EXT_SPKR
C703
470pF
SPKRCOM
C705
470pF
INT_SPKR
C707
470pF
63B81097C16-O
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