A-Board (1 Of 5) Block Diagram - Panasonic TH-42PX75U Service Manual

15.11. A-Board (1 of 5) Block Diagram

IC4501
MAIN5V
EEPROM
Q4504 7 WC SDA 5
8 VCC SCL 6
IC4500
EEPROM
Q4505 7 WC SDA 5
8 6
VCC SCL
HPDT
19
+5V Q4503
18
DDCG
17
SDA 16
SCL 15
N.C. 14
CEC 13
CLK- 12
JK4501
CLKG 11
HDMI IN 1 CLK+ 10
D0- 9
D0G 8
D0+ 7
D1- 6
D1G 5
D1+ 4
D2- 3
D2G 2
D2+ 1
HPDT
19
+5V Q4502
18
DDCG
17
SDA
16
SCL
15
N.C.
14
CEC
13
CLK-
12
CLKG
11
JK4500
CLK+
10
HDMI IN 2 D0-
9
D0G
8
D0+
7
D1-
6
D1G
5
D1+
4
D2-
3
D2G 2
D2+ 1
A DC-DC CONVERTER
SPEAKER OUT,SOUND PROCESSOR
AV TERMINAL,AV SWITCH
DIGITAL SIGNAL PROCESSOR
MICON
HDMI INTERFACE
PEAKS LITE 2
TH-42PX75U
A-Board (1 of 5) Block Diagram
MAIN5V
IC4508
HOTPLUG
SUB3.3V
CVDD 1.8V
Q4501
Q4500 VIN 8
1 VOUT
CONT 5
IC4509
DVDD 1.8V
VIN 8
1 VOUT
CONT 5
21 19 20
105 106
CVDD PVDD DVDD AVDD
AUDIO
INTERFACE
RXA_CN
112
RXA_CP
113
RXA_0N
115
TMDS DATA
RXA_0P
116 RECEIVER
RXA_1N AND
118
TMDS DECODER
VIDEO SWITCH
RXA_1P
119
INTERFACE
RXA_2N
121
RXA_2P
122
HDCP
CIPHER DECRYPTOR
CHROMA
DEM
COLOR
DETECT
3D/2D
COM
VPK
RXB_CN
128
RXB_CP
129
RXB_0N
131
TMDS DATA
RXB_0P
132 RECEIVER
RXB_1N
AND
134
TMDS DECODER
RXB_1P
135
IC4510
RXB_2N
137
RXB_2P
HDMI I/F RECEIVER
138
10bit A/D
HDCP
CIPHER DECRYPTOR
144 1 108 107 12 11 66 65
X4500
SDA1
SCL1
IC4504
MAIN3.3V
EEPROM(4kbit)
5 SDA WC 7
6 SCL VCC 8
IC4506
SUB5V
AVR 1.8V
VIN 7
1 VOUT TV_SUB_ON_DELAY
CONT 5
MAIN3.3V
TVDD DVDDIO
SPDIF HDMI_SPDIF
2
SCLK (RX_SCK) HDMI_SCLK
8
I2SO (RX_SD0) HDMI_SDIN
3
LRCLK (RX_WS) HDMI_LRCK
7
38
UV0-UV9
45
55
58
24
Y0-Y9
33
46
47 R0-R3
52
53
VI1VSYNC
VS 18
VI1HSYNC
HS 17
VI1ENB
DE 16
VI1CKOUT
DCLKIN 48
VI1CLK
LLC 51
LPF
MAIN_Y
10bit AIN6 MAIN_Y_OUT
99 Q4516
A/D
MATRIX
LPF
MAIN_PB
10bit AIN8 MAIN_PB_OUT
RGB
78 Q4515
A/D
LPF
MAIN_PR
YUV 10bit AIN4 MAIN_PR_OUT
94 Q4514
A/D
SOY
97 Q4517
63
IC8302
FRONT END PROCESSOR
(TERRESTRIAL RECEIVER)
(FE_TO_PEAKS) TDO
108
(SPC_TO_FE) TDI
109
JTAG
TRST
111
SOY
TCK
113
BT30V
TMS
114
SUB5V
CHOCLK 11
98
IBD07
CHODATA
95
IBD06
CHOVAL
IBDEN 94
CHOSYNC
IBPCK 93
FE_IRQ 17
RF_L
INT 106
FE_XRST
NRST 56
RF_R
24 XO
X8300 IBMSDA 43 Q8302
12
25 XI
IBMSCL 44 Q8303
13
SDA2 118 SDA RF_AFT
14
SCL2 117 SCL
RF_V
Q8301
16
FAT_P
IBAINP 32 C8327-C8331
18
C8333,C8334
FAT_N
L8306,07,09
IBAINN 34
19
BAND FILTER
IBAGCIF 49
20
TH-42PX75U
A-Board (1 of 5) Block Diagram
TH-42PX75U
1
2
3
4
5
TU8300
TUNER
BTL
BB
1
BV
9
V_SUPPLY
L_OUT
4
R_OUT
5
SDA
SCL
AFT
VIDEO_OUT
IFD_OUT1
IFD_OUT2
IF_AGC