10.
Circuit Diagrams and PWB Layouts
10.2 B 715G6947 SSB
10-2-1
System Power
19790_500.eps
System Power
B01
B01
2014-09-22
3
715G6947
System Power
C728
NC
R734
470R 1%
PWR_12V
13,17
+5V_SW
9,11,13,16,17,18
DV33
5,7,10,11,12,13,14,17,18
DV33SB
6,10,11,12,18
DV15
12
DV11
12
GND
5,6,7,8,9,10,11,12,13,14,15,16,17,18
+5V_STB
6
DV33
DV11
PWR_12V
+5V_STB
GND
DV33SB
+5V_SW
DV15
U702
AP3417C
EN
1
GND
2
LX
3
VIN
4
FB
5
R733
18Kohm 1/16W +/-1%
BL_DIMMING_912 18
BL_DIMMING_912
C710
NC/100N 16V
+5V_STB
R724
100OHM
+5V_STB
L701
2.2uH
C719
1
u
F
10V
DV33SB
R710
18Kohm 1/16W +/-1%
DV11
C713
4.
7U
F
10
%
10V
DV33
R738
NC/1K
R705
4K7 1/16W 5%
Backlight ON/OFF Control
BL_DIMMING
11
BL_ON/OFF
10
PWR_ON
10
PWR_ON
BL_ON/OFF
BL_DIMMING
C742
100N
F
25V
C736
NC
BackLight_SW:
BackLight on: High
BackLight off: Low
+5V_SW
+5V_STB
R702
BRIGHT_ADJ
R706
51K 1/16W 5%
Q702
LMBT3904LT1G
C706
220NF 16V
C709
NC/4.7UF 10% 10V
R704
47K
PWR_ON_2
R707
0R05 4A 1/4W
+5V_STB to +5V_SW
Q701
AO4449 -7A/-30V
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
D702
NC/BAS316
+
C707
100UF 16V
DV33
Backlight Brightness Control
BL_DIM(PWM for Bright_Adj):
Max: +3V3
Min: 0V
R703
0R05 OHM
C735
NC
C718
2.
2U
F
AVDD1V2
AVDD1V2
13
AVDD1V2
L704
2.2uH
C717
10UF 6.3V
PWR_ON_2
R742
NC/100OHM
R719
4K7
GPIO
PWR_ON_2
C712
10UF 6.3V
STB CONTORL
R711
47K 1/16W 5%
"PWR_ON"
Normal:Low
Standby:High
U705
VI
3
VO
2
GN
D
1
PWR_ON_2
18
DV33
R727
10K
C711
4.7UF 10% 10V
BL_DIMMING_912
R728 NC
C702
10UF 25V
C703
N
C
/100N
F
16V
BRIGHT_ADJ
T
P70
3
T
P701
AUDIO_12V
T
P704
PWR_12V
PWR_12V
R701
100OHM
PWR_12V_AL
T
P702
PWR_ON_2
C701
100N
F
16V
PWR_12V_AL
AUDIO_12V
INVERTER_ON_OFF
T
P710
C708
2.
2nF
50V
CN701
CONN
2
4
6
8
10
12
14
1
3
5
7
9
11
13
R725
100OHM
BL_DIMMING
AUDIO_12V
14
AUDIO_12V
C723
NC
Q703
LMBT3904LT1G
1
3
2
DV33 to AVDD1V2
+5V_SW to DV33
+5V_SW
DV33
INVERTER_ON_OFF
R723
47K 1/16W 5%
R736
20K 1%
C744
1U
F
25V
R714
100K 1%
C721
100N
F
16V
R720
124K 1%
C743
100NF 16V
+5V_STB
PWR_12V
R737
1K5 1%
C724
22pF
50V
C747
8
.2N
F
50V
C745
1U
F
25V
U706
TPS54428DDAR
EN
1
VFB
2
VREG5
3
SS
4
GND
5
SW
6
VBST
7
VIN
8
E-PAD
9
L703
3.3uH
C746
22U
F
10V
R722
0R05
C722
22U
F
10V
R729
33K 1%
C715
NC/100N16V
R709
150K 1%
R721 0R051/8W
C729
N
C
/100N
16V
BL_ON/OFF
12V TO 5VSB
R741
47K
C727
4.7UF 10% 10V
R726
10K
+5V_SW to DV15
R717
NC/47K 1/16W 5%
CORE POWER 1.2V
L702
2.2uH
C730
10U
F
6.
3
V
U703
AP3417C
EN
1
GND
2
LX
3
VIN
4
FB
5
R708
150K 1%
DV15
R718
100K 1%
C716
NC/100N16V
+5V_SW
PWR_ON_2
C740
10UF 16V
C7
2
0
N
C
/100N
16V
R712
47K 1/16W 5%
C7
5
1
100N
F
16V
+5V_SW
DC POWER INPUT
INVERTER_ON_OFF
Normal:High
Standby:Low
BRIGHT_ADJ
Normal:PWM or DC 3V3 Max
Standby: 0 V
R739
NC/1K
U701
M5723B-33F61U
EN1
1
AGND
2
FB1
3
AGND
4
EN2
5
IN2
6
OUT2
7
IN1
8
PGND
9
LX
10
E-PAD
11
R715
NC/10K 1/16W 5%
R716
4K7 1/16W 5%
DV33SB
DV33SB
+5V_STB
PWR_ON
PWR_ON_2