Panasonic PT-56LCX70 Service Manual page 57

VIDEO SIGNAL PATH II BLOCK DIAGRAM
MAIN P.C.B.
IC5501 (EEPROM)
VCC 8 MAIN+5V
I2C SERIAL CLOCK 6
I2C SERIAL DATA
5
WRITE PROTECT 7
IC5500 (EEPROM)
VCC 8 MAIN+5V
I2C SERIAL CLOCK
6
I2C SERIAL DATA 5
WRITE PROTECT 7
CN5501
+5V
TMDS DATA0(+)
TMDS DATA0(-)
TMDS DATA1(+)
TMDS DATA1(-)
TMDS DATA2(+)
HDMI-IN1
TMDS DATA2(-)
TMDS CLOCK(+)
TMDS CLOCK(-)
I2C SERIAL CLOCK
I2C SERIAL DATA
CN5500
+5V
TMDS DATA0(+)
TMDS DATA0(-)
TMDS DATA1(+)
TMDS DATA1(-)
TMDS DATA2(+)
HDMI-IN2
TMDS DATA2(-)
TMDS CLOCK(+)
TMDS CLOCK(-)
I2C SERIAL CLOCK
I2C SERIAL DATA
IC5511 (SW)
6 2
5 3
MAIN+5V 8 VCC
1 7
Q5508
IC5512 (SW)
6 2
5 3
MAIN+5V VCC
8
Q5504
1 7
Q5505
SD/HDMI P.C.B.
IC9802 (EEPROM)
IC9801 (EQUALIZER)
VCC MAIN+5V
8
I2C SERIAL CLOCK 6
I2C SERIAL DATA 5
4
EQUALIZER
WRITE PROTECT 7
3
CN9803
7
+5V EQUALIZER
6
TMDS DATA0(+)
TMDS DATA0(-)
TMDS DATA1(+)
10
TMDS DATA1(-) EQUALIZER
9
TMDS DATA2(+)
HDMI-IN3
TMDS DATA2(-)
TMDS CLOCK(+)
46
TMDS CLOCK(-) EQUALIZER
45
I2C SERIAL CLOCK
I2C SERIAL DATA
2,11,ETC
+3.3V
VCC
Q9804
MAIN Y/V
MAIN PB/C
FROM VIDEO I
SIGNAL PATH MAIN PR
BLOCK DIAGRAM
PC H-SYNC
PC V-SYNC
IC5503 (HDMI SW/EQUALIZER)
31
30 20
SW EQUALIZER BUFFER
4 21
3
34
33 16
SW EQUALIZER BUFFER
7 17
6
40
39 13
SW EQUALIZER BUFFER
10 14
9
28
27 23
SW EQUALIZER BUFFER
46 24
45
2,11,ETC
VCC MAIN+3.3V
36
20 CN9804-4 CN5503-4
BUFFER
21 CN9804-6 CN5503-6
CN9804-3 CN5503-3
16
BUFFER
17 CN9804-1 CN5503-1
13 CN9804-9 CN5503-9
BUFFER
14 CN9804-7 CN5503-7
CN9804-10 CN5503-10
23
BUFFER
24 CN9804-12 CN5503-12
CN9804-25 CN5503-25
CN9804-27 CN5503-27
(FROM IC6004 (6))
HDMI MUX SELECT(L)
(FRON IC6004 (106))
CN9804-26 CN5503-26
EDIT WP(H)
IC5510 (HDMI INTERFACE/AD CONVERTER)
Q5516
B
99
Q5515
A/D
B 78 MATRIX
CONVERTER
Q5514
B 94
63 PC H-SYNC
62 PC V-SYNC
DATA
PROCESSOR
MUX
116
115
119
118
TMDS
YUV
DECODER
CONVERTER
122
121
113
112
MUX HDMI
DECODER
132
131
135
134
TMDS
DECODER
138
137
129
128
105 I2C SERIAL CLOCK
106 I2C SERIAL DATA
AUDIO
DECODER
144 I2C SERIAL CLOCK
I2C SERIAL DATA
1
57
PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
VIDEO SIGNAL AUDIO SIGNAL
IC5504 (EEPROM)
I2C SERIAL CLOCK 108 6 I2C SERIAL CLOCK
I2C SERIAL DATA 107 5 I2C SERIAL DATA VCC 8 MAIN+3.3V
YUV DATA (24BIT)
24-33, 38-47,
52, 53, 55, 58
TO VIDEO I
a
R5646
SIGNAL PATH
H-SYNC H-SYNC
17
BLOCK DIAGRAM
R5645 b
V-SYNC 18 V-SYNC
c
R5636
CLOCK 51 CLOCK
MODE FREQUENCY
480p a
27MHz
720p V1 +3.30 Vp-p
74.25MHz
/1080i
1080p 148.5MHz
1V 5µs
X5500
b
27MHz CLOCK 65 27MHz
V1 +3.30 Vp-p
27MHz CLOCK 66 OSC
1V 10ms
c
V1 +1.80 Vp-p
1V 10ns
3 HDMI SERIAL DATA
TO AUDIO
HDMI LRCK
7
BLOCK DIAGRAM
8 HDMI BCK
2 HDMI SPDIF
TP5052 TP5053
111,123,ETC
L5512
TVDD
IC5506
TP5060 TP5051 TP5040 TP5041
84,88
AVDD 1 +3.3V REG. 7 SUB+5V
5 TP5044 TP5055
15,35,ETC
L5515
DVDDIO MAIN+3.3V
IC5508
TP5058 TP5059 TP5042 TP5043
68,71,ETC
L5521
PVDD 4 +1.8V REG. 5 SUB+3.3V
1
104,109,ETC
L5520
CVDD
IC5509
TP5056 TP5057
23,57,ETC
DVDD 1 +1.8V REG. 8
5
FROM SYSTEM CONTROL
TV MAIN ON DELAY (H)
BLOCK DIAGRAM
VIDEO SIGNAL PATH II BLOCK DIAGRAM
PT-56LCX70/PT-61LCX70/PT-50LCX7/PT-56LCX7
/PT-61LCX7/PT-50LCX7K/PT-56LCX70-K/PT-61LCX70-K