Panasonic TH-42PX20U-P Service Manual page 264

Q9001
INV.
G
CLKC
DCKC
R/G/B
77
23
24
7
8
3
206
205
9
16
147
20
21
SMM
CABLE_DET
IC9706
RESET
RESET 5V<->3.3V
IC9702
EEPROM
SDA
SCL
101
D
(1/2)
Format Converter
IC9151
FORMAT CONVERTER(I/P)
CTI/TINT
COLOR
8BIT RGB FORMAT
CONTRAST
CONVERTER
ADC /Y Pb Pr
WB-Adj
(I/P
110M OSD
CONVERTER)
St-r
SDRAM I/F
F.CLP
HD
OCK PLL
VD
DIGITAL C
CLK
OSD
27 29 185 75 74
SERIAL
OSD
DATA
RESET
DCKC
106
HDS I/O
VDS I/O
CLK
182
HD
IC9605 VD
178
VD
HD
179
SYNC PROCESSOR
CLP
OSD (1/2)
HS C1
SDA I/O 132
VS C1
SCL I/O
133
CLP C1
MCVD
18
MCHD 17
MCDATA
RESET
OSD IN0
MC CLK
FPGA-LD
OSD IN7
61 SOUND MUTE
AD1
Q9707
100
IC9701
A/D SEL.
68
MICRO PROCESSOR
MC CLK
85
FPGA-LD
104
Q9706
MCDATA
SW MCCLK
86
SCL3
87 SCL3
SDA3 SDA3
88
SCL2 89 SCL2
SDA2 90 SDA2
SCL1 70 SCL1
SDA1
71 SDA1
A01
5
6
IC9001
REG 3.3V
P5V 5 4 3.3V
IC9153
REG 5V
UNREG 14V 1 3 5V
B0-B7,G0-G7,R0-R7
LEFT(MASTER)RGB 8bit
IC9155
64M SDRAM
IC9154 IC9157
3.3V->5V PLL M
(100MHz)
IC9014
5V->3.3V
B0-B7,G0-G7,R0-R7
RIGHT(SLAVE)RGB 8bit
SDA2
SDA2
SCL2
SCL2
IC9606
4
RESET
50MHz
SDA2
SCL2
IC9703
15
17
3.3V->5V
IC9602
5V->3.3V
NH IN
113
NV IN
111
A0
IC9704
A9
D00
VRAM(1Mbit)
D15
RAS
CAS
CE
WE
OE
IC9705
OSC IN 9
X9701
FLASH MEMORY
24.5MHz
OSC OUT 10
(8M ROM)
OSC IN 38
X9703
20MHz
OSC OUT 39
A19
TH-42PX20U-P D-BOARD (1 of 2) BLOCK Diagram
IC9006 IC9007
REG 3.3V REG 3.3V
P5V 5 4 3.3V P5V 5
IC9152 IC9302
REG 3.3V REG 3.3V
P5V 5 4 3.3V P5V 5
IC9303
IC9301
PLL
PLL
50MHz
CLK2
6
CLK1 XIN X OUT
5 1 6
OSC
IN
4
X9302
20MHz
3
5
4 3.3V
4 3.3V
CLK
50MHz
60MHz
CLKD 7
65MHz
CLKE
8
OSC
OUT
5
IIC_CONT
RESET
SMM
CABLE_DET
HD,VD