Service Manual
Page 2
Factory Preset Timings 5. Waveforms 10. Assembly Explosion Drawing Block Diagram PAGE 1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 9-1 10-1 11-1 12-1 VIZIO P50HDM Service Manual Features 2. BLOCK DIAGRAM 7. Complete Parts List Appendix 1. Table of Circuit Operation 9. Specifications 3. Main Board I/O Connections 8. Main Board PCB Layout 3. Pin Assignment 6. Spare Parts List 12. Main Board Circuit Diagram 2. On Screen Display 4. Theory of Contents CONTENTS Sections 1. Trouble Shooting 11.
Factory Preset Timings 5. Waveforms 10. Assembly Explosion Drawing Block Diagram PAGE 1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 9-1 10-1 11-1 12-1 VIZIO P50HDM Service Manual Features 2. BLOCK DIAGRAM 7. Complete Parts List Appendix 1. Table of Circuit Operation 9. Specifications 3. Main Board I/O Connections 8. Main Board PCB Layout 3. Pin Assignment 6. Spare Parts List 12. Main Board Circuit Diagram 2. On Screen Display 4. Theory of Contents CONTENTS Sections 1. Trouble Shooting 11.
Service Manual
Page 20
DO NOT COPY Page 6-2 File No. SG-0173 Main board System Block Diagram W8 CN17 U37 24LC02 EEPROM HDMI1 W13 U40 24LC02 EEPROM HDMI2 CN16 W6 Y Pr Pb Y Pr Pb W7 W11 W14 COMP1_Audio_R/L COMP2_Audio_R/L ...
DO NOT COPY Page 6-2 File No. SG-0173 Main board System Block Diagram W8 CN17 U37 24LC02 EEPROM HDMI1 W13 U40 24LC02 EEPROM HDMI2 CN16 W6 Y Pr Pb Y Pr Pb W7 W11 W14 COMP1_Audio_R/L COMP2_Audio_R/L ...
Service Manual
Page 21
SG-0173 DO NOT COPY Page 7-1 File No. Chapter 7 Main Board Internal I/O Connections CN1 "DC POWER INPUT' PIN Description 1 PDP_+5Vsc 2 PDP_+5Vsc 3 PDP_+5Vsc 4 GND 5 GND 6 GND 7 PDP_+12V 8 PDP_+12V 9 GND 10 GND 11 PDP_+12V_FAN 12 PDP_FGND CN2 "DC POWER INPUT' PIN 1 2 3 4 Description PDP_Audio PDP_Audio GND GND CN3 "DC POWER INPUT/OUTPUT' PIN 1 2 3 4 Description GND VS_ON RLY_ON PDP_+5Vsb CONFIDENTIAL -
SG-0173 DO NOT COPY Page 7-1 File No. Chapter 7 Main Board Internal I/O Connections CN1 "DC POWER INPUT' PIN Description 1 PDP_+5Vsc 2 PDP_+5Vsc 3 PDP_+5Vsc 4 GND 5 GND 6 GND 7 PDP_+12V 8 PDP_+12V 9 GND 10 GND 11 PDP_+12V_FAN 12 PDP_FGND CN2 "DC POWER INPUT' PIN 1 2 3 4 Description PDP_Audio PDP_Audio GND GND CN3 "DC POWER INPUT/OUTPUT' PIN 1 2 3 4 Description GND VS_ON RLY_ON PDP_+5Vsb CONFIDENTIAL -
Service Manual
Page 29
...Flipping (MSB to LSB) for media card applications. Inputs to other devices. Sync and clock polarity is to ease the circuit board design when interfacing to the digital input port are not present on PORTB. This table below shows how the input DATA buses can...host registers. Figure 8-4 Digital Input DATA bus assignment CONFIDENTIAL - PORTA also includes optional signals (DIP_EXT_CLAMP, DIP_EXT_COAST, DIP_CLEAN_HS_OUT) for interfacing to the panel. These signals are TTL compatible with a maximum clock speed of 8bit inputs. Due to pin sharing, PORTB is not available when using 48bit...
...Flipping (MSB to LSB) for media card applications. Inputs to other devices. Sync and clock polarity is to ease the circuit board design when interfacing to the digital input port are not present on PORTB. This table below shows how the input DATA buses can...host registers. Figure 8-4 Digital Input DATA bus assignment CONFIDENTIAL - PORTA also includes optional signals (DIP_EXT_CLAMP, DIP_EXT_COAST, DIP_CLEAN_HS_OUT) for interfacing to the panel. These signals are TTL compatible with a maximum clock speed of 8bit inputs. Due to pin sharing, PORTB is not available when using 48bit...
Service Manual
Page 61
SYSTEM OVERVIEW Y driver board Main board Power supply board X driver board Display board IR board Audio power EMI filter Audio Voltage selectior CONFIDENTIAL - SG-0174 DO NOT COPY Page 10-1 File No. Chapter 10 PDP Trouble Shooting A.
SYSTEM OVERVIEW Y driver board Main board Power supply board X driver board Display board IR board Audio power EMI filter Audio Voltage selectior CONFIDENTIAL - SG-0174 DO NOT COPY Page 10-1 File No. Chapter 10 PDP Trouble Shooting A.
Service Manual
Page 62
... - PCB PARTS NAME/NUMBER AND FUNCTION DESCRIPTION PART NAME PART NUMBER POWER SUPPLY BOARD X DRIVER BOARD Y DRIVER BOARD AUDIO POWER SELECTOR MAIN BOARD 385000120150 IR BOARD DISPLAY BOARD 385000120189 385000120156 FUNCTION DESCRIPTION PROVIDE ALL THE POWER FOR TV SET X ELECTRODE DRIVING BOARD Y ELECTRODE DRIVING BOARD AUDIO POWER SUPPLY(+30V OR +24V) CONNECTING TO TRANSFER DISPLY SIGNAL TO PDP...
... - PCB PARTS NAME/NUMBER AND FUNCTION DESCRIPTION PART NAME PART NUMBER POWER SUPPLY BOARD X DRIVER BOARD Y DRIVER BOARD AUDIO POWER SELECTOR MAIN BOARD 385000120150 IR BOARD DISPLAY BOARD 385000120189 385000120156 FUNCTION DESCRIPTION PROVIDE ALL THE POWER FOR TV SET X ELECTRODE DRIVING BOARD Y ELECTRODE DRIVING BOARD AUDIO POWER SUPPLY(+30V OR +24V) CONNECTING TO TRANSFER DISPLY SIGNAL TO PDP...
Service Manual
Page 64
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-...
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-...
Service Manual
Page 65
... or Info. Is AD14 high? PDP DISPLAY NOTHING(Analog HD1/AC on screen? SG-0174 Check internal cable? 1.CN1's cable 2.CN3's cable No Check main board CN3 pin 4Î studyby +5V Check CN3 pin 3Î RLY_ON(high) Check CN3 pin 2Î VS_ON(high) No Check Fuse open? (F2,F3,F4) Yse... Check CN1Îpin 1,2,3 = +5V pin 7,8 = +12V No Yes Panel power fail No Fuse fail D10,D11 LED is lighting? Check AC power cord Yes No Power LED is lighting? No U13 fail Yes No...
... or Info. Is AD14 high? PDP DISPLAY NOTHING(Analog HD1/AC on screen? SG-0174 Check internal cable? 1.CN1's cable 2.CN3's cable No Check main board CN3 pin 4Î studyby +5V Check CN3 pin 3Î RLY_ON(high) Check CN3 pin 2Î VS_ON(high) No Check Fuse open? (F2,F3,F4) Yse... Check CN1Îpin 1,2,3 = +5V pin 7,8 = +12V No Yes Panel power fail No Fuse fail D10,D11 LED is lighting? Check AC power cord Yes No Power LED is lighting? No U13 fail Yes No...
User Manual
Page 6
... on the PDP driving mechanism. These are lit for about 2 to injuries of these can be observed in certain gray levels as well as a display board to the product. The product may be observed on the screen changes, there can be sure to defects in components such as an inclined surface... that can be damaged if it is used . This also is a phenomenon that can be moved by two or more persons. This product contains glass. VIZIO P50 HDM User Guide Electrical Warnings Do not place this product in a location that is subject to the luminance at a low luminance, by reducing signal...
... on the PDP driving mechanism. These are lit for about 2 to injuries of these can be observed in certain gray levels as well as a display board to the product. The product may be observed on the screen changes, there can be sure to defects in components such as an inclined surface... that can be damaged if it is used . This also is a phenomenon that can be moved by two or more persons. This product contains glass. VIZIO P50 HDM User Guide Electrical Warnings Do not place this product in a location that is subject to the luminance at a low luminance, by reducing signal...