Sharp LC32DV24U - 31.5" LCD TV Service Manual page 62

A B
8
7 FROM/TO JACK3
PC_V
PC_H
AV3/AV4_Y
AV1_CVBS
VGA-G
AV3/AV4_PB
VGA-B
AV3/AV4_PR
VGA-R
S1_DET
SPDIF
6
AV2_CVBS
FROM/TO TUNER
TU_CVBS
I2C_CLK
I2C_DATA
TO HDMI
HP_RST
5
FROM/TO SCALER POWER
AD_A3.3V
FROM/TO AV SWITCH2
SW_Y_IN
SW_C_IN
MCLK
SDOUT
LRCK
4
BCLK
3
2
1
A B
H-27
C D
SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM
(DIGITAL PCB)
IC2801 R8J66954BG SCALER
PC_V 3.2
J1 PCVIN
3.2
PC_H
K1 SSIN1
C2946
3.2
K2 SSIN2
C2937 9
0.1 B 1.7
SW_Y_IN
L1
VIN3A
0.1 B C2939
TU_CVBS 2.6
L2 VIN1A
C2938 11 0.1 B
1.3
AV1_CVBS
L3 VIN2A
0.1 B
C2940
0
M1 VREFA
0.1 B
C2931 12
AV3/AV4_Y 1.9
M2 VIN4A
0.1 B
C2941
1.6
M3 VRPA
0.1 B
C2932 10
2.0
SW_C_IN
N1 VIN2B
C2928 0.1 B
3.3
AV2_CVBS
N2 VIN6A
C2927 0.1 B
VGA-G 0.9
N3 VIN5A
0.1 B
C2942
3.2
N4 VRMA
0.1 B
C2933
1.6
P1 VRPB
C2943
1.6
0.1 B
P2 VREFB
C2934
13 0.1 B
AV3/AV4_PB 1.9
P3 VIN3B
0.1 B
C2944
1.6
R1 VREFC
C2935 0.1
B 1.3
R2
VRMB
C2925
0.1 B
VGA-B 2.7
R3
VIN4B
0.1 B C2936
1.6
T1 VRPC
C2945
0.1 B 14
AV3/AV4_PR 1.6
T2 VIN2C
0.1 B
C2947
3.3
U1 VRMC
C2926
0.1 B 3.3
VGA-R
U2 VIN3C
0.1 B C2929 R2837
3.3
LPF
V1
0.1 B 1K
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E F
ROUT
LOUT
I2C_CLK
SICL V9
I2C_DATA
W9
3.3 ASW0
SCLK0(GPIO) AA8
3.3 ASW1
SRXD0(GPIO) Y8
3.3
ASW2 ASW2
STXD0(GPIO) W8
R2850
VDIM
R2846 4.7K C2959 C2965
3.3
BL_PWM
QBLCA
J21
4.7K 0.1 B 0.1 B
LCD-H
QBLCB(GPIO) J20
3.3
TWIRE_RXDC
QBLCC(RXD0) J19
3.3 TWIRE_TXDC
J18
10K
R2847
3.3 MCU_SCIRXD
V8
3.3
MCU_SCITXD
SCIRXD V7
3.3 IIC_OFF
SCISCK(GPIO) W7
0 3.4
A0 Vcc
R2856 C2968
0 0
A1 WP
R2860
B
0 3.4 10K 0.1
A2 SCL
R2862
4.7K
0 3.4
Vss SDA
4.7K
EEP_ROM IC
IC2805
AT24C256BN-10SU-1.8
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
E F
G H
8
7
TO SURROUND
W889
LOUT_FI 6
W890
ROUT_FI
FROM/TO JACK3
ROUT_FI
LOUT_FI
ASW2
ASW1
TWIRE_RXDC
TWIRE_TXDC 5
FROM/TO FLASH
IIC_OFF
DVD-H
I2C_CLK
I2C_DATA
TO AV SWITCH2
ASW0
4
DVD-H
TO SURROUND
DVD-H
FROM/TO MICON
I2C_CLK
I2C_DATA
MCU_SCIRXD
MCU_SCITXD
3
FROM/TO REGULATOR2
LCD-H
VDIM
GND
AT+3.3V
D3.3V
2
PCBDH0
CEG352
1
G H
H-28