Panasonic CY-VHD9401U, Service Manual

Page: 45 / 61

19.3. TFT Block
CY-VHD9401U TFT
To E-4C280a CN802
To E-4C280a CN801
C3EBCC000033
C0FBBD000038
1k 1k
C0CBADE00034
YEANC3618T1
B0BC3R4A0006
B0ACCK000005
C0JBAZ000525 6.3V100
2SD0601AHR
YEADVDZS68BT YEADRD10MZTZ
2SB0709AWL
2SD0601AHR
YEADVDZS68BT
D708,709
B1GKCFGH0001
YEAM75W393FU
2SB0709AWL
YEANC114YKX
18p
1k
B1HFCFD00001
B1AB00000279
C0HBA0000135
B0BC3R4A0006
D901,902,903
C0ABBB000105
B0BC3R4A0006
1
C0ABBB000069
B1ABCF000052
B1ABCF000018
B1GBCFNA0010
YEANC114EKTX
E-4C279
IC962
IR RECEIVER
IC806
EEP ROM
IC905
D/A CONVERTER
IC901
TFT CONTROLLER
IC902
PLL
IC931
VCOM
CONTROL
Q802
BUFF
IC801
VIDEO CHROMA & LCD I/F
Q803,804
BUFF
Q805
BUFF
Q705,707
-13V REG
IC702,Q704,706
DC-DC CONVERTER
Q703
+3.3V REG
IC701
+5V REG
IC802
OSDC
Q780
POWER
CONTROL
IC780,Q781,782
INVERTER
CONTROL
Q783,784
ON/OFF
SWITCH
Q801
+7.5V REG
0.1
9P
1.9
0
5.1
0 0
5.2 5.2 5.1
0 0 0
5.2 3.4
0
0 0 0 0
5.2
5.2 5.2 2.2
0
2.2
0 0 0
2.3 1.6
5.2
0
5.1 5.2
14.0
4.6
2.3 2.3
0
1.8 1.8
1.8
3.2
0 0
2.1
0 0 0 0 0 0 0 3.4 3.3 1.6 0.8
1.6
0
0
1.8
0
1.5
1.5
1.5
0
0
0
0
0
0
0.5
3.3
0 0 0
3.3 3.3
3.0
3.1 3.2
0.7
1.6
3.2
3.2
3.2
3.2
3.2
3.2
3.2
2.3
0
0
3.3
0
0
0
6.9
4.9
4.9 3.4
4.0
2.4
2.7
2.7
0
0
0
0
4.9
2.3
2.2
2.5
6.0
6.0
6.0
6.0
-15.6
-13.2
-13.2
-13.1
-13.8
-12.5
4.9
4.9
5.2
0
1.5
1.5
1.5
0
2.7
1.5
3.9
7.7
8.4
8.3
0
0
0
0
0
0
2.7
8.5
8.6
0 0
1.4 1.5 3.4 3.4 0.5 3.4 0.9 2.3
0 0 0 0 3.1 3.2
0
17.4
7.3
8.4 7.8
2.4
2.4
2.4
2.4
2.4
2.4
2.4
4.3
0.5
0
7.7
2.9
3.2 1.6
0 0
2.9
0 0
2.2 1.7 2.3
4.9 4.9 4.6
4.6
4.9
5.2
0
2.6
2.8
2.8
2.4
4.5
4.6
2.9
4.1
0
0.7
2.0 2.0 2.0 2.0 2.0 2.0 2.6 2.6 2.6
2.0 4.9
7.7
4.8
4.2
1.6
2.2
4.9
-13.1
1.3
1.3
1.3
1.3 1.3
1.3
17.3
0.2V/DIV, 20us/DIV
1V/DIV , 0.2us/DIV
0.5V/DIV, 20us/DIV
1V/DIV , 10us/DIV
2V/DIV , 0.1ms/DIV
2V/DIV, 20us/DIV
3V
2V/DIV, 0.1ms/DIV
3V
2V/DIV , 20us/DIV
2V/DIV, 50us/DIV
7V
5V
3V
2V
2V/DIV, 50us/DIV
3V
2V/DIV, 5us/DIV
3V 3V
2V/DIV, 50us/DIV
1V/DIV , 0.2us/DIV
2V
2V/DIV ,0.5us/DIV
4V
1V/DIV , 20us/DIV
5V
3.3V 3.3V
-13V
3.3V
5V
5V
3.3V 3.3V
3.3V
3.3V
3.3V
5V
5V
5V
5V
5V
5V
5V
5V 5V
5V
3.3V
9V
17V
17V
17V
17V
-13V
-13V
-13V
-13V
-13V
3.3V
3.3V
5V
5V
17V
-13V
-13V
17V
17V
5V
3.3V
7.5V
5V
9V
9V
9V
9V
5V
9V
9V
9V
5V
9V
9V
5V
3.3V
3.3V
3.3V
3.3V
5V
3.3V
3.3V
5V
7.5V
9V
-13V
17V
3.3V
5V
7.5V
9V
-13V
17V
VISUAL
The following symbols are
shown on the schematic diagram.
B
G
R
B
G
R
CY-VHD9401U
45