Sharp LC-26DV24U A Service Manual page 20

A B
8
FROM/TO JACK3
7
PC_V
PC_H
AV3/AV4_Y
AV1_CVBS
VGA-G
AV3/AV4_PB
VGA-B
AV3/AV4_PR
VGA-R
S1_DET
SPDIF
AV2_CVBS
6
DVD-H
FROM/TO TUNER
TU_CVBS
I2C_CLK
I2C_DATA
TO HDMI
HP_RST
5
FROM SCALER POWER
AD_A3.3V
FROM/TO AV SWITCH2
SW_Y_IN
SW_C_IN
MCLK
SDOUT
LRCK
BCLK
4
3
2
1
A B
H-19
C
SCALER
IC2801 R8J66954BG
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
2.6
TU_CVBS
L2 VIN1A
C2938 0.1 B
11
1.3
AV1_CVBS
L3 VIN2A
0.1 B
C2940
0
M1 VREFA
0.1 B
C2931 12
1.9
AV3/AV4_Y
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
0.9
VGA-G
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
1.9
AV3/AV4_PB
P3 VIN3B
0.1 B
C2944
1.6
R1 VREFC
C2935
0.1 B 1.3
R2
VRMB
C2925
2.7
VGA-B 0.1 B
R3
VIN4B
0.1 B C2936
1.6
T1 VRPC
C2945
0.1 B 14
1.6
AV3/AV4_PR
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
SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM
(DIGITAL PCB)
SICL V9
W9
3.3
SCLK0(GPIO) AA8
3.3
SRXD0(GPIO) Y8
3.3 ASW2
STXD0(GPIO) W8
R2850
R2846 C2959 C2965
4.7K
3.3 BL_PWM
QBLCA
J21
4.7K
0.1 B 0.1 B
QBLCB(GPIO) J20
3.3
QBLCC(RXD0) J19
3.3
J18
R2847 10K
3.3
V8
3.3
SCIRXD V7
3.3
SCISCK(GPIO) W7
0 3.4
A0 Vcc
R2856 C2968
0 0
A1 WP
R2860
0 3.4
10K
A2 SCL
R2862
0 3.4 4.7K
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.
D E
F G
W889
W890
ROUT
LOUT
I2C_CLK
I2C_DATA
ASW0
ASW1
ASW2
VDIM
LCD-H
TWIRE_RXDC
TWIRE_TXDC
MCU_SCIRXD
MCU_SCITXD
IIC_OFF
0.1 B
F G
H
8
7
TO SURROUND
LOUT_FI
6
ROUT_FI
FROM/TO JACK3
ROUT_FI
LOUT_FI
5
ASW2
ASW1
TWIRE_RXDC
TWIRE_TXDC
FROM/TO FLASH
IIC_OFF
I2C_CLK
I2C_DATA
4
TO AV SWITCH2
ASW0
DVD-H
FROM/TO MICON
I2C_CLK
I2C_DATA
MCU_SCIRXD
3
MCU_SCITXD
FROM/TO REGULATOR2
LCD-H
VDIM
GND
AT+3.3V
D3.3V
2
PCBDH0
CEH424
1
H
H-20