Vizio P50HDM - 50" Plasma Panel Service Manual page 20

Main board System Block Diagram
U26 MAX232A
W8
CN17
U37 24LC02
EEPROM HDMI1
W13 ANLOG DDC
U40 24LC02
EEPROM HDMI2 VS / HS
CN16 R G B
W6
ATSC Y
Pr Pb
Y Pr Pb
Y Pr Pb
W7
A2/B2/C2
COMP1_Audio_R/L
COMP2_Audio_R/L
W11
AudioAV1_R/L
CVBS1
CVBS2
W14 AudioAV2_R/L
W10
Y1/C1
Y2/C2
W5 VGA_AUDIO_L/R
W13
AUDIO L/R
OUT
W12
Headphone
CONFIDENTIAL – DO NOT COPY
J9
2 ARXD
1
3 ATXD_HUD
J10
2 ATXD
1
3 ARXD_HUD
ATXD_HUD
ARXD_HUD
U40 24LC128
EEPROM(8051)
U20 4052 51_RXD/51_TXD
U38 I/O SW
UC_SCL/UC_SDA
SST89C58
ADATA[0:23]
U42 Sil 9011
IPCLK0/AHS/AVS/AHREF_DE
HDMI RS
HDMI1 AUDIO
BDATA[0:23]
U35 Sil 9011
IPCLK1/BHS/BVS/BDE
HDMI RS
HDMI2 AUDIO
VGA_SCL / VGA_SDA
U21 24LC02
EEPROM VGA
U45 74HCT14
Inverting Schmitt Trgger
A4/B4/C4
U22 M61323FP
VEDIO SW
U23 M61323FP
A3/B3/C3_CTZ
VEDIO SW
U24 M61323FP
A3/B3/C3_HUD
VEDIO SW
U37 CS3443
HDMI2 LR DAC
U36 CS3443
HDMI1 LR DAC
U46 IDTQS3253
HDMI1 AUDIO SW
U42 IDTQS3253
HDMI1 AUDIO SW
HDMI1_AUDIO_L/R
HDMI2_AUDIO_L/R
AudioAV1_R/L
AudioAV1_R/L
COMP1_Audio_R/L
COMP2_Audio_R/L
VGA_AUDIO_L/R
VEDIO
HY5DU56822CT-D4 HY5DU56822CT-D4
U17 DDR RAM CTZ U16 DDR RAM HUD
FL8532_CTZ
Frame Store Frame Store
DDR Interface DDR Interface
51_RXD/51_TXD
ARXD UART
ATXD 2 Wire
Controller
IPCLK0/AHS/AVS/AHREF_DE
IPCLK1/BHS/BVS/BDE GPIO
MSTR2_SCL/MSTR2_SDA 2 Wire
Controller
MSTR1_SCL/MSTR1_SDA 2 Wire
Controller
VGA_SCL / VGA_SDA
Digital A
ADATA[0:23] Input LVDS
BDATA[0:23] Digital B Display
Input
Interface
AIR_RAW_HS_CS/AIR_RAW_VS
SV4_CTZ
SV2_CTZ
SV3_CTZ/A1_CTZ
B1_CTZ/C1_CTZ Analog
A4/B4/C4_CTZ input
A3/B3/C3_CTZ
A2/B2/C2_CTZ
JTAG_BS_TCK/TDO/TMS/TDI/TRST JTAG Boundary
Scan OCM External
SRAM
MSTR1_SCL/MSTR1_SDA 2 Wire
Controller
JTAG_BS_TCK/TDO/TMS/TDI/TRST JTAG Boundary
Scan
ATXD_HUD
ARXD_HUD UART I2CCM
AIR_RAW_HS_CS/AIR_RAW_VS
A4/B4/C4_HUD Serial ROM
A3/B3/C3_HUD Interface
A2/B2/C2_HUD Analog
SV4_HUD input
SV2_HUD
SV3_HUD/A1_HUD
B1_HUD/C1_HUD
IPCLK1/BHS/BVS/BDE GPIO
LVDS
BDATA[0:23]
Display
Interface
FL8125_HUD
AUDIO
MSTR2_SCL/MSTR2_SDA
U28 MAX4550 CH4_R/L
CH3_R/L Lineout_R/L
AUDIO SW
4/2 I/O
U32 P4450G
AUDIO
HLIN/HRIN
PROCESS
U27 MAX4550 CH2_R/L
CH1_R/L
AUDIO SW
4/2 I/O
KEY PAD
CN5
CN12
SCL-33V / SDA-33V U25 F75373S
MSTR0_SCL/MSTR0_SDA
CN13
Display
W1
XU1 A29LV320D
MEMERY_CTZ
NC7SB3157
U18 BUS SW
U11 24LC32
EEPROM HUD
U12 SST25VF040
FLASH 512K HUD
J7
Speaker R
TDA8946AD
U33 PT2308
AUDIO DRIVER J8
AUDIO_AMP
Speaker L
U34 PT2308
AUDIO DRIVER
Page 6-2
File No. SG-0173