Toshiba 19LV505 Service Manual page 98

A B
8
7
FROM/TO JACK
DVD-H
PC_V
PC_H
AV3/AV4_Y
AV1_CVBS
6
VGA-G
AV3/AV4_PB
VGA-B
AV3/AV4_PR
VGA-R
SPDIF
FROM/TO TUNER
5 TU_CVBS
I2C_DATA
I2C_CLK
TO HDMI
HP_RST
FROM SCALER POWER
AD_A3.3V
4
FROM/TO AV SWITCH
SW_Y_IN
SW_C_IN
MCLK
SDOUT
LRCK
BCLK
DVD-H
3
2
1
A B
H-15
C D
SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM
(DIGITAL PCB)
SCALER IC IC2801
3.24
PC_V
J1 PCVIN
PC_H 3.24
K1 SSIN1
C2946 0.1 B 3.24
K2 SSIN2
C2937 0.1 B 2
0
SW_Y_IN
L1
VIN3A
C2939 0.1 B 0
TU_CVBS
L2 VIN1A
3
C2938 0.1 B 1.34
AV1_CVBS
L3 VIN2A
C2940 0.1 B 0.03
M1 VREFA
4
C2931 0.1 B 1.12
AV3/AV4_Y
M2 VIN4A
C2941 0.1 B 1.611
M3 VRPA
5
C2932 0.1 B 2.02
SW_C_IN
N1 VIN2B
NC
N2 VIN6A
C2927 0.1 B 0.91
VGA-G
N3 VIN5A
C2942 0.1 B 3.28
N4 VRMA
C2933 0.1 B 1.61
P1 VRPB
C2943 0.1 B
1.34
P2 VREFB
C2934 0.1 B 6 1.85
AV3/AV4_PB
P3 VIN3B
1.59
C2944 0.1 B
R1 VREFC
C2935 0.1 B
1.31
R2
VRMB
C2925 0.1 B 0.03
VGA-B
R3
VIN4B
C2936 0.1 B
1.61
T1 VRPC
C2945 0.1 B 1.67
AV3/AV4_PR
T2 VIN2C
7
C2947 0.1 B 0.81
U1 VRMC
C2926 0.1 B 0
VGA-R
U2 VIN3C
C2929 R2837
3.32
AD_A3.3V
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
R8J66954BG
3.25
SICL V9
3.22
W9
3.28
SCLK0(GPIO) AA8
3.31
SRXD0(GPIO) Y8
3.28 ASW2
STXD0(GPIO) W8
R2850
R2846 C2959
4.7K
3.31 BL_PWM
QBLCA
J21
4.7K 0.1 B
3.31
QBLCB(GPIO) J20
0
QBLCC(RXD0) J19
0
J18
3.301
V8
3.26
SCIRXD V7
3.31
SCISCK(GPIO) W7
EEP ROM
IC2805 M24256-BWMN6TP
0 3.28
A0 Vcc
0 0
A1 WP
0 3.29
A2 SCL
0 3.29
Vss SDA
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
C2976
1 B
C2977
1 B
ROUT
LOUT
W884
I2C_CLK
I2C_DATA
ASW0
ASW1
ASW2
VDIM
C2965
0.1 B
LCD-H
TWIRE_RXDC
R2847 TWIRE_TXDC
R2849
4.7K
4.7K MCU_SCIRXD
MCU_SCITXD
IIC_OFF
R2856 C2968
0.1 B
10K
G
19LV505/19LV506/22LV505
H
8
TO JACK
LOUT_FI
ROUT_FI
7
TO AV SWITCH
DVD-H
ASW0
ASW2
ASW1
6
FROM/TO FLASH
IIC_OFF
I2C_CLK
I2C_DATA
FROM/TO MICON
MCU_SCIRXD
5
MCU_SCITXD
I2C_CLK
I2C_DATA
FROM/TO REGULATOR
S1_DET
TWIRE_RXDC
TWIRE_TXDC
4
LCD-H
VDIM
D3.3V
GND
AT+3.3V
3
2
PCBDH0
CEG360
1
H
H-16