Chapter 8. Schematic Diagram; Main Schematic Digram - Sharp LC-32SV21L Service Manual

CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIAGRAM
02 SYSTEM POWER
H:7.7mm
CN701
MAIN POWER
1
2
3
4
5
6
7
8
9
10
11
12
13 1
120R/6000mA
FB701
CONN
3V3SB
+5VSB
U702
3 2
VI VO
C711 +
1UF 10V
TJ3940S-3.3
DVDD3V3 AVDD3V3
U701
+5V_SW G1084-33TU3Uf
3 2
VIN VOUT
+
C720 C719
1UF 10V 100UF 16V
H:7.7mm
09/01 change temp
08/30 change
to 10*9
1.2 x (1+ 0/110) = 1.2V AVDD1V2
DVDD3V3 U705
G912T63U
3 2 R732
VI VO
0R05 4A 1/4W
C727 + C728
100UF 16V
1UF 10V
2008-03-14
INVERTER_ON_OFF
BRIGHT_ADJ
(+16V) for 22"
+12V
C1147
FB704 120R/6000mA
1N 50V
1 2
+24V
C1148
24V
1N 50V
R705
STANDBY 13
+5VSB
1K 1/10W
HI = > POWER_ON
2
C705
R706
LO = > POWER_OFF
100K 1/10W
1uF 25V
C1149
1N 50V
1 FB707 2
+5VSB
80OHM 4A
C707
1uF 25V
C710
100UF 16V
R709
10OHM1/10W
C712
U703
H:7mm 0.1uF 50V
9
E-PAD
1 8
VCC VIN
2 7
REF LX
3 6
GND PGND
C713 4 5
FB EN
0.1uF 50V
AT1529F11U
3V3SB
GMT
R715
1K 1/10W
R735
OPWRSB
10K 1/10W
26",32",40"
R119
BKL CONTROL R123
R120 R624 C127
TYPE
PWM CONTROL N/C
4K7 100R N/C N/C
CM O26W/
SEC32W AP12
N/C
5K6
1K N/C
22U
SEC32F/SEC40F
OLD Inverter lm p
DC-CONTROL
260K
(3V3)
SEC32W AP12
4K7 N/C
5K6 15K
22U
DC-CONTROL
(5V)
+5V Switch
+5VSB
EMI solution 09/01/11"
C702
C731 1uF25V
10N 50V
R704
51K 1/10W
VCCK
R707
Q703
2.7K 1/10W BC847C
C706
NC/4U7 6V3
ZD116 C708 C709
10uF 10V
1uF 25V
RLZ6.8B
Vout = 0.8x(R1+R2)/R2
L701 4.7uH
C714 NC/1nF 50V
C716 C717
R712 R713
0.1uF 50V
10uF 10V
1K8 1/10W 1% 100R 1/10W 5%
C721 R1
1uF 25V
R714
R2
4.7K 1/10W
modify vcck feed back voltage
BRIGHT ADJUST
DVDD3V3 +5V_SW
R725
4.7K 1/10W
BL_DIMMING
R731
4.7K 1/10W
INVERTER
REMARK
R721 R722
ON/OFF
3V3 N/C 2K
5V 4K7 N/C
NEW Inverter
lm p 28K
73
+5V_SW
Q702
AON4421
C704
+
220uF 16V
SMD H=7.7
5,7,10,12,13,14,15,16,17
4,5,7,8,9,10,11,12,13,14,15,16,18
4,5,7,8,9,10,11,12,13,14,15,16,18
VCCK
C718 + C715
100UF 16V
10uF 10V
H:10.5mm
INVERTER ON/OFF
DVDD3V3
Bright_Adj
M ax:3.3V
R724 INVERTER ON/OFF
M in: 0V
1K 1/10W
H: OFF
R728 L: ON
BRIGHT_ADJ
BL_ON/OFF
100R 1/10W 5%
Q705
MMBT3904 R733 C726
NC/1K 1/10W NC/22 10V
LC-32SV21L&LC-42SV31L
11 +24V +24V
+5V_SW +5V_SW
3,4,6,9,17 +5VSB +5VSB
14,17 +12V +12V
6,7,9,13,17 3V3SB 3V3SB
DVDD3V3 DVDD3V3
AVDD3V3 AVDD3V3
7,8,9,12,14,15 AVDD1V2 AVDD1V2
9 VCCK VCCK
24V 24V
3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18 GND
Control Interface
OPWRSB
9 OPWRSB
BL_DIMMING
13 BL_DIMMING
BL_ON/OFF
13 BL_ON/OFF
STANDBY
13 STANDBY
Detection
+5V_SW DVDD3V3
3V3SB
R721 R722
NC/4K7 1/10W 2K 1/10W
R726
INVERTER_ON_OFF
10K 1/10W
R730
Q704
MMBT3904 C725
10uF 10V
4.7K 1/10W R734
NC/1K 1/10W
NC/MMBT3906 PNP
1
Q706