Vizio P50HDM Service Manual - Page 64

PDP DISPLAY NOTHING 1. Main board block diagram U26 MAX232A J9 2 1 3 J10 2 1 3 ATXD_HUD ARXD_HUD U40 24LC128 EEPROM(8051) ARXD ATXD_HUD ATXD ARXD_HUD UC_SCL/UC_SDA U38 SM5964-C40J U20 4052 4/1 x2 I/O HY5DU56822CT-D4 HY5DU56822CT-D4 U17 DDR RAM CTZ U16 DDR RAM HUD W8 CN17 U37 24LC02 EEPROM HDMI1 U42 Sil 9011 HDMI RS ADATA[0:23] U35 Sil 9011 HDMI RS BDATA[0:23] W13 U40 24LC02 EEPROM HDMI2 ANLOG DDC VGA_SCL / VGA_SDA VS / HS U21 24LC02 EEPROM VGA U45 74HCT14 Inverting Schmitt Trgger CN16 VGA input W6 Component 1 W7 Component 2 Y Pr Pb Y Pr Pb R G B ATSC Y Pr Pb U22 M61323FP VEDIO SW U23 M61323FP VEDIO SW U24 M61323FP VEDIO SW W11 W14 AudioAV1_R/L CVBS1 CVBS2 AudioAV2_R/L 51_RXD/51_TXD ARXD ATXD SV4_CTZ SV2_CTZ SV3_CTZ A1_CTZ B1_CTZ C1_CTZ VGA_SCL / VGA_SDA FL8532_CTZ KEY PAD CN5 SCL-33V / SDA-33V F75373S U25 W1 Display ATXD_HUD ARXD_HUD NC7SB3157 U18 BUS SW XU1 A29LV320D MEMERY_CTZ SV4_HUD SV2_HUD SV3_HUD A1_HUD B1_HUD C1_HUD FL8125_HUD U11 24LC32 EEPROM HUD U11 SST25VF040 FLASH 512K HUD Y1/C1 Y2/C2 W10 W5 W13 W12 U37 CS3443 HDMI2 LR ADC U36 CS3443 HDMI1 LR ADC U46 IDTQS3253 HDMI1 AUDIO SW U42 IDTQS3253 HDMI1 AUDIO SW HDMI1_AUDIO_L/R HDMI2_AUDIO_L/R AudioAV1_R/L AudioAV1_R/L U28 MAX4550 AUDIO SW 4/2 I/O COMP1_Audio_R/L COMP2_Audio_R/L VGA_AUDIO_L/R U27 MAX4550 AUDIO SW 4/2 I/O CH4_R/L CH3_R/L CH2_R/L CH1_R/L U32 P4450G AUDIO PROCESS Lineout_R/L HLIN/HRIN U33 PT2308 AUDIO DRIVER U34 PT2308 AUDIO DRIVER TDA8946AJ AUDIO_AMP CONFIDENTIAL - DO NOT COPY Page10-4 File No. SG-0174