Main Schematic Diagram; System Power; Chapter 8. Schematic Diagram - Sharp LC-32A28L Service Manual

CHAPTER 8.
SCHEMATIC DIAGRAM

[1] MAIN SCHEMATIC DIAGRAM

01. SYSTEM POWER

INVERTER_ON_OFF
CN701 BRIGHT_ADJ
1 2
1 FB104 300OHM
2
3 1 2
4 FB105 300OHM
5
6 1
7 FB106
8
9 1
10 FB107
11
12 1 2
13 AC_Detect FB101 220R/2000mA
1 2 C101
FB103 220R/2000mA
CONN 100uF/25V
+5VSB
C107
1uF 25V
R108
VCCK 51K 1/10W 5%
R111
2.7K 1/10W Q104
MMBT3904
C115
4.7UF 10V
+5V_STB(+5V1) TO +5V_SW BY OPWRSB
DIGITAL POWER DV33
+5V
U104 DV33
R736 3 2
VIN VOUT
0R05 4A 1/4W
C126 C125
+
C127
0.1uF 50V 100uF/25V
0.1uF 50V
璓穝
ANALOG POWER AV33
U105
+5V
AV33
3 2
VI VO
+ C128
100uF/25V
2008-03-14
INVERTER_ON_OFF:
Normal: High
+12V
Stand_By: Low
+
C104
BRIGHT_ADJ:
+24VSB
100uF/25V
Normal:Max:+3V3, Min:0V
2
Stand_By:0V
220R/2000mA
2
OPWM0
220R/2000mA
R103
+5VSB 100R 1/10W 5% R105
HI = > POWER_ON
100K 1/10W
+ C102 C778 LO = > POWER_OFF
0.1uF 50V 100N 16V
Stand By Power
+5V
U101
+5VSB
G1117-33T63Uf
3 2 1
VI VO
FB146
600R/500mA
+ C111
C112
+
100uF/25V
+ C113 NC/100uF/16V
Q103 470UF 16V
AON4421
DV33
R115
4.7K 1/16W
SMD/0402
AC_Detect#
AC_Detect Q105
R118 MMBT3904
100R 1/10W 5% C680
100N 16V
SMD/0402
ANALOG POWER AV125
DV33
U103
3 2
VIN VOUT
+ C122
NC/100uF/16V
G1117T63Uf
1
+24VSB
FB134
1
FB102
C103
NC/1UF 50V
R104
NC/51K 1/10W 5%
OPWM0
R106 Q102
NC/10K 1/16W 5% NC/MMBT3904
HI = > POWER_ON SMD/0402
LO = > POWER_OFF
+3V3SB +5VSB
FB108
33 OHM
2 C108 C109
1uF 25V 1uF 25V
C776 C777
100N 16V 100N 16V
SMD/0402 R109
10R 1/10W 5%
C114
R110
U102
1uF 25V
NC/10K 1/10W
9
Thermal Pad
1 8
VCC VIN
2 7
REF LX
3 6
GND PGND
C117 4 5
FB EN
0.1uF 50V
G5627F11U
1K8 1/10W 1%
C120
璓穝
+3V3SB NC/1uF/16V
R116 R2
1K 1/10W 5%
OPWRSB
R117
10K 1/10W
BRIGHT ADJUST
GPIO0(PWM for Bright_Adj):
Max: 0V
Min: +3V3
AV125
GPIO0
R126 + C123
NC
100uF/25V
R127
INVERTER ON/OFF
0R01 1/10W
1.25 x (1+ 0/110) = 1.25V
INVERTER_SW:
Inverter on: Low
R130
10K 1/16W 5%
Inverter off: High
SMD/0402
LVDS_CTRL2
69
2
300OHM
+24V
2
300OHM
Q101
NC/AON4421
FOR
19"22"
16V
SWITCH
+ C110
100uF/25V
VCCK
L101 4.7uH
C116 NC/1nF 50V
C119 C681 C118
+
R112
0.1uF 50V 470UF 16V
10U 16V
R113
100R 1/10W 5%
R1
R114
4K7 1/10W 1%
8/17 KODI
Vout = 0.8x(R1+R2)/R2
DV33 +5V DV33
R120
NC/4.7K 1/10W R121
R119 4.7K 1/10W
4.7K 1/16W
SMD/0402 R122 BRIGHT_ADJ
100R 1/10W 5%
R124 Q106 R125
4.7K 1/16W MMBT3904 C121 NC/560KOHM +-5% 1/10W
NC/22uF 10V
SMD/0402
+5V DV33
DV33 +3V3SB
R129
R128
1K 1/10W 5%
NC/4K7 1/10W
R131
INVERTER_ON_OFF
NC/10K 1/16W 5%
SMD/0402
C129
R132 Q107 NC/1uF/16V
4.7K 1/16W MMBT3904
SMD/0402
LC-32A28L, LC-42A48L
GND
GND
+5VSB
+5VSB
+12V
+12V
+5V
+5V
+3V3SB
+3V3SB
DV33
DV33
+24V
+24V
AV33
AV33
AV125
AV125
VCCK
VCCK
OPWRSB
OPWRSB
GPIO0
GPIO0
STANDBY
OPCTRL2
AC_Detect#
ADIN5
LVDS_CTRL2
LVDS_CTRL2
OPWM0
OPWM0
BL CONTROL R122 R121 C121
100R 4K7 N/C
PWM CONTROL
4K7 1K 22U
DC CONTROL
INVERTER
R128 R129
ON/OFF
3V3 N/C 1K
5V 4K7 N/C