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17.7. SPK Main (Diginet/Micon/Damp) Circuit (SB-NE5)
1
2
3
SCHEMATIC DIAGRAM - 11
A
I
SPK MAIN (DIGINET) CIRCUIT
CN58001
STBY_CTRL
1
K
TO
PCONT
2
SPK SMPS
REGION
3
GND
4
CIRCUIT (P1700)
B
PW_XSW16R7V
5
IN SCHEMATIC
GND
6
DIAGRAM - 19
PW_XSW16R7V
7
PW_STNBY_3R3V
MI
MI
SMPS_REGION
MI
PCONT3
MI
STBY_CTRL
C
DA
DAMP_GND
DGND
MI
DA
MI
PCONT4
MI
SMPS_CUT
D
E
F
G
MI: MAIN (MICON): SCHEMATIC DIAGRAM - 13 ~ 14
DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 15 ~ 17
H
1
2
3
4
5
6
: +B SIGNAL LINE
4
5
IC58100
FB
EN
C0DBEYY00146
+3.3V VOLTAGE REGULATOR
VIN
GND
VO
3
2
1
R58132
2.7K
C58110
C58120
10
10
R58131
560
R58130
10K
R58007
4.7K
C58003
R58008
1
4.7K
C58230
R58230
0.1
0
IC58200
C0DBAYY01094
+12V VOLTAGE SWITCHING
REGULATOR
L58200
G1C4R7Z00014
1
BOOT
SW
10
R58235
2
VIN
9
GND
47K
3
EN
COMP
8
R58234
6.8K
VREF
4
SS
7
5
RT
PGOOD
6
R58232
62K
T1
R58233
R58231
10K
62K
C58232
C58233
680P
15P
R58236
3.9K
Q58000
B1CHRC000047
+16.7V POWER SUPLY
1
8
2
7
C58000
R58000
3
6
1000P
100K
4
5
R58001
27K
QR58000
B1GBCFGG0024
SUPPLY CONTROL
4
5
6
7
8
9
10
IC58300
C0DBAYY01685
+3.3V VOLTAGE SWITCHING REGULATOR
8
PVIN
PGND
7
AVIN
SW
6
MODE
AGND
5
EN
FB
T1
LB58200
C58240
J0JHC0000046
0.1
R58240
47K
4
3
R58241
5
2
10K
6
1
QR58240
Q58240
B1GBCFNN0041
B1CHQC000007
PCONT
POWER SUPPLY
1/2
2/2
7
8
9
10
113
11
12
13
TO SPK MAIN (DIGINET)
1
L58300
LB58300
G1C1R0ZA0379
J0JHC0000046
PW_NWSTNBY_SW3R3V
2
R58332
470K
3
C58330
R58331
10P
75K
4
C58320
10
R58330
120K
PCONT3
VIN
SC-NE5EF/EG (SB-NE5EF/EG) SPK MAIN (DIGINET) CIRCUIT
11
12
13
14
CIRCUIT (2/2)
PCONT3
MI
PW_DAMP_SW16R7V
DA
P1
14
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