Sharp LC-32LB261U Service Manual

32″&42″&50″LCD TV Best Buy LC-32LB261U- LC-42LB261U- LC-50LB261U
52
R711
NC
PWR _ON
OEM MODEL Size
Rev
Date
Sheet
of
TPV MODEL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 B
Custom
99Wednesday , May 14, 2014
09. System Power
<Variant Name>
+3V3SB
BL_ON/OFF
BL_ON_OFF
PS_ON
PS_ON
BL_DIM
PS_ON
BL_DIM BL_ON
BL_ON BRIGHT_ADJ
C734
22UF 20% 6.3V
Q705
MMBT3904
C712
1UF 10V
R755
0R05
R703 NC
C791
10UF 25V
R731
10R 1/16W 5%
C701
100PF 50V
R726
4K7 1/16W 5%
C710
100PF 50V
Q703
MMBT3904
C792
100N 16V
C744
4.7UF 10% 10V
C748
100NF 16V
R722
4K7 1/16W 5%
C719
100NF 16V
R743
8.2K 1/16W
C750
4.7UF 10% 10V
U705
AT1529F11U
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
E-PAD
9
U702
TPS54339DDAR
BS
1
VIN
2
LX
3
GND
4
FB
5
COMP
6
EN
7
SS
8
GND
9
Q706
MMBT3904
C706
10UF 6.3V 20%
R712
16KOHM +-1% 1/10W
L701
4.7uH
R710
100KOHM +-1% 1/10W
R702
100R 1/16W 5%
C717
10UF 10V
C751
NC
R701
100R 1/16W 5%
R753
4K7 1/16W 5%
R761
0R05 1/10W
C749
100PF 50V
C790
100N 50V
R706
4K7 1/16W 5%
R766 100KOHM +-1% 1/10W
R732
15K 1/10W 1%
U706
VIN
3
VOUT
2
ADJ(GND)
1
+
C788
NC
Q702
AO3401A
L703
10uH
R708
6K8 1/16W 5%
C729
0.47uF 16V
C702
1nF 50V
C742
100NF 16V
U701
AP1117E33L-13-77
ADJ(GND)
1
VOUT
2
VIN
3
4
4
C715
100NF 16V
R745
48.7 OHM +-1% 1/10W
C735
1UF 25V
R730
4K7 1/16W 5%
R742
4K7 1/16W 5%
R707
4K7 1/16W 5%
C789
22UF 16V
C736
100NF 16V
C753
47nF 50V
+
C778
220uF 25V
Q701
MMBT3904
R744
110R 1/10W 1%
R704
47K 1/16W 5%
R729
6K2
C708
0.1uF 50V
C739
10UF 10V
R750
499 +-1% 1/10W
C725
47UF 6.3V
R705
7K5 1/16W 5%
C758
NC
R709
4K7 1/16W 5%
C743
100NF 16V
R737
1K 1/16W 5%
C711
0.1uF 50V
C724
10UF 10V
+3V3SB+5VSB
DDRV
5V_SW
+20V
VCCK
+20V+5VSB
+3V3SB
+20V_AUD
5V_SW
+20V_AUD
+3V3SB
+20V
+3V3SB
+5VSB
5V_SW+5VSB
+5VSB
BL_ON/OFF 6
DRAM Power 1.8V
SOT223 1A/3.3V
Standby Power +3V3SB
PWR_ON 6
BRIGHT_ADJ 6
H => POWER_ON
L =>
POW ER _OFF
MAIN POWER
Back Light On / Off
HI => POWER_OFF
LO => POW ER _ON
Vout = 0.8x(R1+R2)/R2
R1
R2
Core Power 1.15V
U706 Thermal
+
C794
220uF 25V
R713
1K 1/10W 1%
C776
NC
SCREW4
GND
1
BL_ON BL_ON/OFF
32" 12V 42",50" 20V
12V / 1.28A
12V_AUD / 2A
Vcck / 435mA
DDRV / 140mA
L70X70
R2
R1
3A
V_out = 0.765 x
(R1+R2)/R2=5.015
+
C793
220uF 25V
3V3SB / 186mA
5V_SW / 790mA
C795
NC
C747
NC
V0=1.25 x (1+R2/R1 )
4/18
change
part
2/13 modify connector pin type
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
SCREW1
GND
1
SCREW2
GND
1
SCREW3
GND
1

Sharp LC-32LB261U Specifications

General

Screen Type	led
Wall Mount	100mm x 100mm
Screen Size	31.5 inches, 32 inches
Refresh Rate	60hz
Brightness	180 candela per square meter
Speakers Output	10 watts
USB Ports	1
RF Antenna	yes
Headphones Output	yes
Digital Optical Audio Outputs	1
Component Video Inputs	1
Composite Video Inputs	1
DVI	1
3D	no
Power Consumption	81 kilowatt hours
Depth with Stand	6.5 inches
Height with Stand	18.38 inches
Width with Stand	28.63 inches
Net Weight with Stand	11.3 pounds
Depth without Stand	2.5 inches
Height without Stand	17.13 inches
Net Weight without Stand	10.6 pounds