Panasonic TH-42PX20U-P Service Manual page 379

IC9800
UNREG 14V 1.8V
DC DC CONVERTER UNREG 14V
(1.8V)
IC9952
UNREG 14V 1.8V
DC DC CONVERTER
(1.8V)
B0-B7,G0-G7,R0-R7
CLK
B0-B7,G0-G7,R0-R7
IIC_CONT
RESET
SMM
CABLE_DET
HD,VD
TO DG-BOARD
D3 (2/2)
DG3
REMOCON_OUT
REMOCON_OUT 25
FAN_CONT
FAN_CONT
26
STB_ON 28
STB_ON
POWER_STATUS
15
POW_STATUS
TXD_TU 17
TXD_TU
RXD_TU
19
RXD_TU
REAL TIME/INPUT
27
RTC_INT
TXD_PC
21
TXD_PC
RXD_PC 23
RXD_PC
RESET
11
RESET
TO PA-BOARD
D12
PA12
1
TXD-PC
3
RXD-PC
TO P-BOARD
D25
P25
15V 1 15V
15V 2 15V
5V 5 5V
FAN_CONT
FAN CONT
7
D
Plasma AI Sub-Field Processor
TH-42PX20U-P D-BOARD (2 of 2) BLOCK Diagram
IC9951
3.3V
DC DC CONVERTER
(3.3V)
IC9453
2.5V
DC DC CONVERTER
(3.3V->2.5V)
LEFT(MASTER)RGB 8bit
RIGHT(SLAVE)RGB 8bit
IC9703
3.3V->5V
9 11
CABLE_DET
IIC CONT
SMM
IC9708
EEPROM
SDA
SCL
Q9709
IC9707
INV.
OR
INV.
B
OR
2 Q9708
4
(2/2) 1
A
FPGA CONTROL DATA
RESET
47
IC9456
IC9454
12
RESET FLASH MEMORY
64M SDRAM
(32M ROM)
Plasma
AI control
FC RAM I/F FLASH ROM I/F
DATA DRIVER
50MHz
60MHz CLK
65MHz
IC9455
NEW PLASMA AI
10bit PROCESSOR
SUB-FIELD PROCESSOR
FPGA I/F
(L Master) SLV44h
HD,VD
SDA SDA
SCA SCA
DATA DRIVER
IC9304
FLASH ROM I/F
FC RAM I/F
64M SDRAM
DATA DRIVER
50MHz
60MHz CLK
65MHz IC9305
NEW PLASMA AI
10bit PROCESSOR
SUB-FIELD PROCESSOR
(R Slave) SLV42h
FPGA I/F
HD,VD
DATA DRIVER
SDA SDA
SCA SCA
CONTROL DATA
UEH, USL, USH, UML, UMH, NUEL, UBK
SUS
FPGA I/F
HD,VD
IC9605
(2/2)
CL, CLK,SIU, SID, SCSU, CPL CPH
SCAN
SDA2
132 SDA2 DISCHARGE
CONTROL DRVRST
SCL2
133 SCL2
100
CLE, CBK, CSL, CSH, CML, CMH, PCU
FPGA CONTROL DATA
SCAN
X9702
60 X IN 22
X OUT 23
55
9,216MHz
8
41
RESET
42 26
28
STB_ON
31 IC9709 62
(2/2)
POW_STATUS
35
TXD_TU 64
SUB MPU(CONVERTER)
14
1
RXD_TU
15
RTC_INT
RESET 19
4
TXD_PC
44
51
RUSH ON/OFF
RXD_PC
45
52
46
5 20
47
6 21
37
REMOCON
40 63
REMOCON INH
33
29
32 53 54
REMOCON OUT
SCL3 SDA3
IC9608
FPGA CON.
BUS RELEASE
62 68
2OE 55
1OE Q9400
56
BUS RELEASE
IC9459
BUS SW
CEL
CER
BLKL
BLKD
HZ
IC9601
SUSTAIN CON. DATA 8bit BUFFER
IC9603
SCAN CON. DATA 13bit BUFFER
IC9604
SCAN CON. DATA 13bit BUFFER
Q9301
LED G
REMOCON
LED R
KEY
IC9710
SOS2
SOS1 RESET
6 7 STB 5V
TV ON/OFF
M POWER
KILL SOS
FAN SOS
PS SOS
ALL OFF1
STB5V_S
STB5V_M Q9702 Q9701
TH-42PX20U-P D-BOARD (2 of 2) BLOCK Diagram
TO C2-BOARD
C21
D32
Q9597 Q9596
B3 DRVRST-5V
A15 CEL
B14 BLK
A3 DRVRST
DATA DRIVE
L-UP
TO C3-BOARD
C31
D33
DRVRST-5V
Q9591 Q9594 A38
B26 CEL
PCL
A27
B37
LED G
A37 DATA DRIVE
LED R
A35 L-DOWN
KEY
A36
REMOCON
A33 DRVRST
TO C1-BOARD
C11
D31
Q9599 Q9598
B3 DRVRST-5V
A19 CER
A16 BLKL
DATA DRIVE
R-UP
DRVRST
A3
TO C4-BOARD
D34 C41
Q9593 Q9592 DRVRST-5V
A38
B26 AP_HZ
B38 DRVRST
DATA DRIVE
R-DOWN
TO SC-BOARD
D20 SC20
SCAN
OUT
11 SOS1
12 SOS2
DRVRST
DRVRST-5V
TO P-BOARD
D27 P27
RUSH ON/OFF
1 RUSH ON/OFF
TV ON/OFF
2 TV ON/OFF
M POWER
3 M POWER
STB5V 4 STB5V
KILL SOS
5 KILL SOS
FAN SOS
6 FAN SOS
PS SOS
7 PS SOS
ALL OFF1
8 ALL OFF1