Panasonic TH-42PX20U-P Service Manual page 382

JG
PC/SD Card Interface Board
PC CARD SLOT
P2601
SLOT FOR 68 PC CARD
XCE1
CE1- 7
OE- 9 XOE
XWE
WE- 15
XCE2
CE2- 42
D0
PCD0
PCD15
D15
IC2613
REG-
61 4 5 D 3.3V
1
PCBUF ON
IC2611
A0
IC2612
A9
D0 D0
PCA0 DATA
BUFFER
PCA9 D7 D7
IC2603
/IREQ
READY 16 2 INVERTER 4
RESET
58
36
CD1-
CD2- 67
SC CARD SLOT
P2602
DAT3 1
DAT0 7
SD DAT0 - SD DAT3
DAT1 8
DAT2 9
SD CMD
CMD 2
SD CLK
CLK 5
SD CD
Q2602
CD 10
SD WP
Q2601
WP 12
TH-42PX20U-P JG-BOARD BLOCK Diagram
IC2602
CPU
FLASH ROM I/F
RESET 24 RESET
IC2609
IC2610
DATA HD0
BUFFER
HD15
PCBUF ON
DATA BUS LINE HD0-15
IC2608
HD0
DATA
BUFFER
HD7
IREQ
144
IC2605
SDRAM
DB0-15 DATA BUS LINE DB0-15
I/F SDRAM I/F
DMA0-11
COMPOSIT
ADDRESS LINE
DMA0-11
SD DAT0
SD DAT3
HOST CS
HOST READY
HOST SCLK
SD CMD
168
169 SD CLK
HOST SDO
I/F
LA0-19
LA0-19 ADDRESS BUS LINE
IC2604
FLASH ROM
LD0-15 DATA BUS LINE LA0-7
LD8
LD15
CE2-
14
15 CE1-
17 SD CD
SD WP
15
IC2614
BUFFER
IC2615
IC2617
BUFFER
LD8
LD15
PCBUF ON
/PC RST
BIAS
150K
S-C
SC-OUT 108 2
COMPO-
SITE
114 4
S-Y
SY-OUT
113 6
166
167
143
142
D 5V
5V D1
RESET
12
HOST SD1
16
RESET
IC2616
VIDEO BUFFER
75ohm
4dB
2dB Driver
LPF
15
75ohm
2dB
Driver
4dB
13
+ +
LPF
12
+
75ohm
TP2609
2dB
Driver
4dB
10
+
LPF
9
+
IC2619
REG. 3.6V
3 2 3.6V
IC2620
REG. 3.6V
3 2 3.6V
IC2601
REG. 3.6V
3.6V
1 3
TO
DG-BOARD
PJG22
DG22
TP2620
1 Y-OUT
TP2619
C-OUT
3
5V 5 5V
TP2617
RESET RESET
6
TP2616
7 /HOST CE
TO
PJG21 DG-BOARD
DG21
5V D 5V D
1
TP2614
3 HOST READY
TP2613
HOST SCLK
4
TP2612
5 HOST SDI
TP2611
HOST SDO
6
5V D2
8 5V D2
TH-42PX20U-P JG-BOARD BLOCK Diagram