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Vizio VOJ320F1A-MT5382-LGD Service Manual
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Vizio VOJ320F1A-MT5382-LGD Service Manual

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Service Manual
Model #: VIZIO
VOJ320F1A_MT5382_LGD
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
Top Confidential

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Summary of Contents for Vizio VOJ320F1A-MT5382-LGD

  • Page 1 Service Manual Model #: VIZIO VOJ320F1A_MT5382_LGD V, Inc 320A Kalmus Drive Costa Mesa, CA 92626 TEL : +714-668-0588 FAX :+714-668-9099 Top Confidential...
  • Page 2 7. Theory of Circuit Operation 8. Waveforms 9. Trouble Shooting 10. Block Diagram 10-1 11. Spare parts list 11-1 12. Complete Parts List 12-1 Appendix 1. Main Board Circuit Diagram 2. Main Board PCB Layout 3. Assembly Explosion Drawing VIZIO VOJ320F1A_MT5382_LGD Service Manual...
  • Page 3 Use a power cable that is properly grounded. Always use the AC cords as follows – USA (UL); Canada (CSA); Germany (VDE); Switzerland (SEV); Britain (BASEC/BS); Japan (Electric Appliance Control Act); or an AC cord that meets the local safety standards. VIZIO VOJ320F1A_MT5382_LGD Service Manual...
  • Page 4 Chapter 1 Features 1. Built in TV channel selector for TV viewing. 2. Simulatnueous display of PC and TV images. 3. Connectable to PC’s analog RGB port. 4. Built in S-video, HDTV, composite video, HDMI and TV out. 5. Built in auto adjust function for automatic adjument of screen display. 6.
  • Page 5 Chapter 2 Specification 1. TFT-LCD CHARACTERISTICS Model Name: VOJ320F1A Display Size: 31.55 inches (801.31mm) diagonal Outline Dimension: 760.0 mm (H) x 450.0 mm (V) x 48.0 mm (D) (Typ.) Pixel Pitch: 0.36375mm x 0. 36375mm x RGB Pixel Format: 1920 horiz. By 1080 vert. Pixels RGB strip arrangement Display Operating Mode: Transmissive mode, normally Black Surface Treatment: Hard Coating (3H), Anti-glare treatment of the front polarizer (Haze 13%).
  • Page 6 4. POWER SUPPLY Input Voltage Level: 100~120 Vac, 50/ 60 Hz Power Consumption: 170W Max. Power Off / Standby: to less than 1W 5. Speaker Output 12W (max) X2 6. ENVIRONMENT Operating Temperature: 0c~35c (Ambient) Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing) Operating Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating) 7.
  • Page 7 (3) Brightness depends on the temperature. (In lower temperature, it becomes lower.) And in lower temperature, response time (required time that brightness is stable after turned on) becomes longer. (4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or electrical contacted parts. And after fading condensation, smear or spot will occur.
  • Page 8 Chapter 3 On Screen Display On Screen Display (OSD) is a friendly interface providing the function adjusting in our system. Customers could operate it only by few buttons. There is the introduction of the OSD. Main unit button MENU CH + ↑...
  • Page 9 A. Picture: (Bold: Default) a. Picture Mode (Custom/Standard/Movie/Game/Vivid/Football/Golf/Basketball/ Baseball) b. Backlight (0~100, 90) c. Brightness (0~100, 50) d. Contrast (0~100, 50) e. Color (saturation) (0~100, 50) f. Tint (hue) (-32~32, 0) g. Sharpness (0~7, 4) h. Advanced Video 1. Noise Reduction (Low/Medium/Strong/Off) 2.
  • Page 10 d. Surround (On/Off) e. Digital Audio Out (PCM/Off/Dolby Digital) f. Speakers (On/Off) g. Audio out (Fixed/Variable) h. Lip Sync (0~5) i. Reset Audio Mode C. TV: (Bold: Default) a. Tuner Mode (Cable/Antenna) b. Auto Search c. Partial Channel Search d. Skip Channel e.
  • Page 11 D. Setup: (Bold: Default) a. Language (English/ Français / Espaňol) b. PIP 1. PIP Mode (Off/PIP/POP) 2. PIP Source (Component1/Component2/RGB/HDMI1/HDMI2/HDMI3/ HDMI4) 3. PIP Position(Bottom Right/Bottom Center/Bottom Left/Middle Left/Top Left/Top Center/Top Right/Middle Right) 4. Size (Small/Medium/Large) 5. Audio Source (Main/PIP) c. Sleep Timer (Off/30Min/60Min/90Min/120Min) d.
  • Page 12 d). Font Opacity (Solid/Translucent/Transparent) e). Background Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black) f). Background Opacity (Solid/Translucent/Transparent) g). Window Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black) h). Window Opacity (Solid/Translucent/Transparent) g. H/V Position 1. H. Position (0~64, 32) 2. V. Position (0~32, 16) 3. H-Size (0~100, 0) 4. V-Size (0~100, 20) h.
  • Page 13 RGB Mode A. Picture Adjust: (Bold: Default) a. Auto Adjust b. Backlight (0~100, 90) c. Brightness (0~100, 50) d. Contrast (0~100, 50) e. Color Temperature (6500/9300/Custom) f. H-Size (0~255, 127) g. H. Position (0~100, 61) h. V. Position (0~100, 47) i.
  • Page 14 B. Audio: (Bold: Default) a. Audio Mode (Flat/Rock/Pop/Classic/Jazz) b. Equalizer c. Balance (-50~50, 0) d. Surround (On/Off) e. Digital Audio Out (PCM/Off/Dolby Digital) f. Speakers (On/Off) g. Audio out (Fixed/Variable) h. Lip Sync (0~5) i. Reset Audio Mode CONFIDENTIAL – DO NOT COPY Page 3-7 File No.
  • Page 15 D. Setup : (Bold: Default) a. Language (English/ Français / Espaňol) b. PIP 1. PIP Mode (OFF/PIP/POP) 2. PIP Source (TV/AV1/AV2/HDMI1/ HDMI2/HDMI3/HDMI4) 3. PIP Position(Bottom Right/Bottom Center/Bottom Left/Middle Left/ Top Left/Top Center/Top Right/Middle Right) 4. Size (Small/Medium/Large) 5. Audio Source (Main/PIP) c.
  • Page 16 AV / COMPONENT MODE A. Picture：(Bold: Default) a. Picture Mode (Standard/Movie /Game/Vivid/Football/Golf/Basketball/Baseball/Custom) b. Backlight (0~100, 90) c. Brightness (0~100, 50) d. Contrast (0~100, 50) e. Color (saturation)(0~100, 50) f. Tint (hue) (-32~32, 0) g. Sharpness (0~7, 4) h. Advanced Video 1.
  • Page 17 B. Audio：(Bold: Default) a. Audio Mode (Flat/Rock/Pop/Classic/Jazz) b. Equalizer c. Balance (-50~50, 0) d. Surround (On/Off) e. Digital Audio Out (PCM/off/Dolby Digital) f. Speakers (On/Off) g. Audio out (Fixed/Variable) h. Lip Sync (0~5) i. Reset Audio Mode CONFIDENTIAL – DO NOT COPY Page 3-10 File No.
  • Page 18 C. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. PIP 1. PIP Mode (OFF/PIP/POP) 2. PIP Source (TV/AV1/AV2/HDMI1/ HDMI2/HDMI3/HDMI4) 3. PIP Position( Bottom Right/Bottom Center/Bottom Left/Middle Left/ Top Left/Top Center/Top Right/Middle Right ) 4. Size (Small/Medium/Large) 5. Audio Source (Main/PIP) c.
  • Page 19 5. Auto Phase h. Parental: (Bold: Default) Password (Default => 0000) 1. Rating Enable (On/Off) 2. US TV Rating 3. US Movie Rating 4. Canadian English Rating 5. Canadian French Rating 6. Block Unrated TV (NO/Yes) 8. Access Code Edit i.
  • Page 20 HDMI MODE A. Picture：(Bold: Default) a. Picture Mode (Standard/Movie /Game/Vivid/Football/Golf/Basketball/Baseball/Custom) b. Backlight (0~100, 90) c. Brightness (0~100, 50) d. Contrast (0~100, 50) e. Color (saturation)(0~100, 50) f. Tint (hue) (-32~32, 0) g. Sharpness (0~7, 4) h. Advanced Video 1. Noise Reduction (Low/Medium/Strong/Off) 2.
  • Page 21 B. Audio：(Bold: Default) a. Audio Mode (Flat/Rock/Pop/Classic/Jazz) b. Equalizer c. Balance (-50~50, 0) d. Surround (On/Off) e. Digital Audio Out (PCM/off/Dolby Digital) f. Speakers (On/Off) g. Audio out (Fixed/Variable) h. Lip Sync (0~5) i. Reset Audio Mode CONFIDENTIAL – DO NOT COPY Page 3-14 File No.
  • Page 22 C. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. PIP 1. PIP Mode (OFF/PIP/POP) 2. PIP Source (TV/AV1/AV2/Component1/Component2/RGB) 3. PIP Position(Bottom Right, Bottom Center, Bottom Left, Middle Left, Top Left, Top Center, Top Right, Middle Right) 4. Size (Small/Medium/Large) 5.
  • Page 23 [INPUT] “INPUT” could supply an interface providing a list. The list shows input sources and provides the choices of different sources. The list includes items as below: A. TV: Analog TV or Digital TV B. AV1, AV2: Composite (AV) or S-Video signal C.
  • Page 24 Chapter 9 Trouble shooting MONITOR DISPLAY NOTHING (PC MODE) Start Is Power board output +5VSB (F1)? Is J1 connector of MB good? LED is lighted Is DC-DC OK? (Orange white) Is U22 pin2 (+3V3SB) working ok? It is in power saving 1.
  • Page 25 (TV, COMPOSITE VIDEO1, S-VIDEO) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check DVD player 1. Check P14 signal 2. Check signal between P14 and U13 (IF AV1 mode) U13 input correct? 3. Check Tuner & U13 (IF TV mode) 4.
  • Page 26 (COMPONENT1) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check host’s setting 1. Check signal from P14 2. Check system power 12V& 5V(5VSB) P14 input correct? 1. Check signal between U13 & P14 2. Check Y1 Clock (60MHZ) U13 input correct? 1.
  • Page 27 (HDMI 1, 2, 3) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal 2. Check host’s setting 1. Check P7 & P8 & P9 connect U13 no data out ? 2. Check the pin18 & 19 ofP7 P8 & P9 3.
  • Page 28 TROUBLE OF DC-DC CONVERTER Start The voltage is about + 5V(+5VSB) 1. Check power board J1 PIN10,11,12 2. Check power cable, F1 & connection J1 3. Check U22 pin3 (+5VSB) & pin2 (+3V3SB) The voltage is about + 12V while power switch on 1.
  • Page 29 TROUBLE OF EDID READING Start Support DDC1/2B 1. Analog cable ok? Is Analog DDC OK? 2 .Check signal (U31 to P5) 3. Check U31 Voltage 4. Is protocol compliant? Support DDC1/2B 1. Analog cable ok? 2. Check signal (U32 to P7) 3 Check signal (U 33 to P8) Is HDMI DDC OK? 4.