Chapter 8. Schematic Diagram; Main Schematic Diagram - Sharp LC-19LE430E Service Manual

CHAPTER 8. SCHEMATIC DIAGRAM

[1] MAIN SCHEMATIC DIAGRAM

01. POWER-1
"INVERTER_ON_OFF"
Normal:High
DC POWER INPUT Standby:Low
"BRIGHT_ADJ"
Normal:PWM or DC 3V3 Max
CN701 Standby: 0 V
1 INVERTER_ON_OFF
2 BRIGHT_ADJ
3
+12V
4
5
6
7
8
PWR_16V_24V
9
10 R702
11 STB_PWR5V
12
13
C701
10UF 6.3V X5R +-20%
CONN 13P 2.5MM
R701
NC/10K 1/8W 5%
R/A 2.5 MM
311GW250B13ABX(XINYA)
+5V_STB to DV11/VCCK
+5V_STB
FB706
220R/2000mA
1 2
U701
TPS54319RTE
16
VIN
1
VIN
Near U701
2
VIN
22uF 10V 15
EN
C723 C719 C707 6
VSNS
7
COMP
DV33SB 10uF 10V 8
RT/CLK
100N 16V R715 9
SS
R716
1K 1/16W 5%
C735
OFF ON
10N 50V
PWR_ON R714 C720
3300pF 50V
4K7 1/16W 5%
R742
C709
1UF16V
+5V_SW to DV33/AV33
FB707
+5V_SW
220R/2000mA
1 2 U702
TPS54319RTE
16
VIN
1
VIN
Near U702
2
VIN
15
EN
C732 C724 C711 6
VSNS
10uF 10V 100N 16V 7
COMP
22uF 10V 8
RT/CLK
R731 9
SS
C733
10N 50V
C722
3300pF 50V
STB_PWR5V
FB701 120R/3000mA
1 2
FB702 120R/3000mA
1 2
12V (DL)/NC(DS)
24V (DL) / 16V(DS)
100R 1/16W 5% PWR_ON
"PWR_ON"
Normal:High
PWR_ON
Standby:Low
Q703
BC847C
L701
1.5UH
10
PH
11 C717
PH
12 C721
100N 16V
PH
13 R718 22uF 10V
BOOT
14 300R 1/16W 1%
PWRGD
3
GND
4
GND
5
AGND
R720
12K 1/10W 1%
R721
33K 1/16W 1%
Vout=0.827x (1+12.3K/33K) = 1.13V for DV11
L702
1.5UH
10
PH
11 C718
PH
12 C734
100N 16V
PH
13 R722 22uF 10V
BOOT
14 300R 1/16W 1%
PWRGD
3
GND
4
GND
5
AGND
R730
100K 1/16W 1%
R729
33K 1/16W 1%
Vout=0.827x (1+100.3K/33K) = 3.34V for DV33 & AV33
+5V_STB to +5V_SW
+5V_STB
+ C702 C705
470UF 10V 100N 16V
SMD/0402
EC080-35 も础
DV33SB
DV11 R703 2K7 1/16W 5%
DV11
R717
Normal:High
NC/4K7 1/16W 5%
Stand_By:Low
R705 OPWRSB
4K7 1/16W 5%
+5V_STB TO +5V_SW BY DV11
"OPWRSB"
R734
4K7 1/16W 5%
H: Standby
L: Normal
PWR to 24V or 16V for AUDIO
24V(DL)/16V(DS)
PWR_16V_24V
DV11 VCCK
C657
4.7uF 50V
C713 C715
22uF 10V 100N 50V
Change to C1206
R719
PWR_ON 47K 1/16W 5%
22UF 6.3V
DV33 to DV15_DDR
DV33
FB705
220R/2000mA
G1117T43Uf
1 2 3
VIN
DV33 AV33
C725 C729
R732
10uF 10V
10uF 10V
0R05 1/4W
C714 C716
22uF 10V 100N 50V
105
LC-19LE430E/UK, LC-22LE430E/UK, LC-26LE430E/UK, LC-32LE430E/UK
+5V_STB +5V_SW
Q702
8 1
D D
7 2
D D
R704 6 3
D D
33K 1/16W 5% 5 4
S G
AON4421
C708
C703 1UF16V 10U 16V
ON OFF
R706
22K 1/16W 5%
2 Q701
BC847C
C726
100N 16V
+24V or 16V
+16V_24V
R724
NC/0R05 1/4W
Q705
8 1
D D
7 2
D D
R723 6 3
D D
32"
10K 1/16W 5% 5 4
S G
AON4421
19"/22"/32"
C727 C728
1uF 25V 4.7uF 50V
R727
5K1 1/16W 5%
R725
7K5 1/16W 5%
ON OFF
2 Q704
BC847C
C731
DV15_DDR
U703
2
VOUT
+ C730
220UF 16V
R712
120R 1/10W 1%
R726
27R 1/10W 1%
Vout=1.25x (1+27/120)= 1.53V
+16V_24V
+16V_24V 8,9
+12V
+12V 5,9
+5V_STB
+5V_STB 5,7,14
STB_PWR5V
STB_PWR5V 9
+5V_SW
+5V_SW 5,7,10,11,13,14,15
DV33
DV33 5,6,7,8,9,11,13,14,15
AV33
AV33 6,13
DV15_DDR
DV15_DDR 6,12
VCCK
VCCK 6
GND
GND 5,6,7,8,9,10,11,12,13,14,15,16
DV33SB
DV33SB 5,6,7,9,13,14
GPIO Contrl
OPWRSB
OPWRSB 6
BRIGHT_ADJ
BRIGHT_ADJ 14
INVERTER_ON_OFF
INVERTER_ON_OFF 14
R724 Q705 Q704
0R NC NC
NC AON4421 BC847