Panasonic TH-42PX20U-P Service Manual page 381

DV
HDMI Interface Board
L
R
JK5002
JK5001
D2+
1
2 D2G
3
D2-
4 D1+
D1G
5
6 D1-
7
D0+
8
D0G
9
D0-
10 CLK+
11
CLKG
12 CLK-
13
CEC
14 N.C.
15
SCL
16 DDC DATA
17
DDCG
18 +5V
19
HPDT
TH-42PX20U-P
DV-BOARD BLOCK Diagram
CABLE IN -> Hi : Norm
CABLE OUT -> Low : Mute
R5017
+5V
R5018
IC5003
DVI I/F RECEIVER
97 +
LATCH
96 -
DATA RECOVERY
92 + TMDS PANEL
LATCH
AND DECODER INTERFACE
91 -
SYNCHRONIZATION
87
+
LATCH
86
-
84
+
PLL
83
-
17 40 64 100 1 6 11 14 21 47 56 67 23 80 82 89 93 95
IC5011
HPD
IC5001 Q5002 6
DDC EEPROM
6 SCL
WP 7 5 WP
5 SDA
VCC
8
R5127
Q5014
R5129
Hi=> MUTE
R5125
R5132
R5128
R5122
+5V
Q5013
Q5011
R5021
Q5019
R5138
Q5016
SMUTE/CSN 6
Q5003
IC5007
AUDIO AMP
1 MCLK
2 BICK
3 SDTI AOUT L 11 2
4 LRCK
5
PDN
26
AOUT R 10 6
14
VCC
32
30
IC5006
31
AUDIO DAC
12
15
7
71
+3.3V
EX.I/O
SEL AUDIO
1
A DAC PD
2
AUDIO MUTE 3
S_CLOCK1
15 SCL1
IC5009
S_DATA1 14 SDA1
SAD2 13
AVR5V
VCC 16
3
+5V
6
IC5008
DVI/HDMI SELECT
2
16
L AMP
3 Q5012
H
1
7
8
L AMP
6 Q5015
R5177
H
9
VCC 13
+
SCL1
1
- R5143
SDA1
Q5017
+
SCL0
7
- R5144
SDA0
Q5018
VCC 8
AMP
Q5005,5009
AMP
Q5006,5007
AMP
Q5004,5008
IC5010
AVR3.3V
3 1
6 2
IC5005
RESET
VCC 5
1
2
TO DG-BOARD
DG51
DV7
5 DVI L
DVI R
3
26 AUDIO MUTE
11 SUB9V
SUB9V
12
28 S_CLOCK1
27 S_DATA1
S_CLOCK0
23
22 S_DATA0
18 DVI Y
16 DVI PB
DVI PR
14
25
INT
8 SUB5V
9 SUB5V
TH-42PX20U-P
DV-BOARD BLOCK Diagram