Ncn6106C, Ncn/Pmcn6153A/B And Ncn/Pmcn6176A Controller Board Power Section Schematic Diagram - Motorola HT-1000 Service Manual

MECH_SWB+
CR704
47K
1
B+CNTL
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
47K
Vaud Regulator
Vaud
Q701
C734 C733
10uF 0.1uF
SW_B+
C731
0.1uF
D1
EN_AMP
E2
EN_INT_MIC
F3
EN_MIC
U702
C6
AMPIN
D5
AUDIO PA
PLIN
F4
FREQCOMP
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
INPUT OUTPUT
7
FEEDBACK ERROR
C767
3
SHUTDOWN SENSE
0.1uF
5V_TAP
U708
4
CR706
C732
10uF
VR702
C727
10V
1uF
C726
0.33uF
A3
AMP2OUT
A5
VR701
AMP3OUT
C725
10V
1uF
D6
PLOUT NC
E6
REGOUT
F2
NC
B6
B1
C2
C729
1uF
Vdd
R738
22K
1
5
2
6
VR714
C768 C770 C771 6.8V
330pF 10uF 0.1uF
C703
470pF
C705
470pF
C728
0.33uF
C707
470pF
63B81097C24-O
NCN6106C, NCN/PMCN6153A/B AND NCN/PMCN6176A
CONTROLLER BOARD POWER SECTION SCHEMATIC DIAGRAM
PWR_RST
EXT_SPKR
SPKRCOM
INT_SPKR
113