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Vizio VP42 HDTV20A Service Manual

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Service Manual

Model #: VIZIO VP42 HDTV20A
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 VP42 HDTV20A

  • Page 1: Service Manual

    Service Manual Model #: VIZIO VP42 HDTV20A V, Inc 320A Kalmus Drive Costa Mesa, CA 92626 TEL : +714-668-0588 FAX :+714-668-9099 Top Confidential...
  • Page 2 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 Block Diagram VIZIO VP42 HTDV20A 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 VP42 HTDV20A 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. LCD CHARACTERISTICS Type: PDP MODULE 42'' PDP42X3 (LG)(China)(Film type) Size: 42.02inch Display Size: 42 inches (1067.308mm) diagonal Outline Dimension: 1005 mm (H) x 597 mm (V) x 60.7 mm (D) (Typ.) Pixel Pitch: 0.9mm x 0.676mm x RGB Pixel Format: 1024 horiz.
  • Page 6 6.Speaker Output 10W (max) X2 7. ENVIRONMENT 5-1. Operating Temperature: 5c~35c (Ambient) 5-2. Operating Humidity: 90%RH (Non-condensing) 5-3. Operating Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating) 8. DIMENSIONS (Physical dimension) Width: 1048.0 mm. Depth: 308.0mm Height: 757.0mm 9. WEIGHT (Physical weight) a.
  • Page 7 (5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break by electro-chemical reaction. (6) Do not touch, push or rub the exposed polarizes with glass, tweezers or anything harder than HB pencil lead.
  • Page 8 (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. (5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
  • Page 9 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 10 A. Picture：(Bold: Default) a. Picture Mode (Standard/Movie /Game / Custom) b. Brightness (0~100, 55) c. Contrast (0~100, 50) d. Color (saturation)(0~100, 50) e. Tint (hue) (-32~32, 0) f. Sharpness (0~7, 4) g. Color Temperature (Cool/Normal/Warm/Custom) h. Advanced Video B. Audio：(Bold: Default) a.
  • Page 11 C. TV：(Bold: Default) a. Tuner Mode (Cable/Air) b. Auto Search c. Skip Channel d. Digital Audio Out (PCM/Dolby Digital/OFF) e. Time Zone (Eastern/Indiana/Central/Mountain/Arizona/Pacific/Alaska/Hawaii) CONFIDENTIAL DO NOT COPY Page 3-3 – File No. SG-0221...
  • Page 12 D. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. Sleep Timer (OFF/30Min/60Min/90Min/120Min) c. Analog CC (OFF/CC1~4/TT1~4) d. Digital CC (OFF/CC1~4/Service1~6) e. Digital CC Style 1. Caption Style (As Broadcaster/Custom) 2. Size (Large/Small/Medium) 3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black) 4. Font Opacity (Solid/Translucent/Transparent) 5.
  • Page 13 E. Parental：(Bold: Default) Password (Default => 0000) a. Cannel Block b. TV Rating c. Move Rating d. Block Unrated TV (NO/Yes) e. Access Code Edit CONFIDENTIAL DO NOT COPY Page 3-5 – File No. SG-0221...

  • Page 14: Rgb Mode

    RGB Mode A. Picture Adjust：(Bold: Default) a. Auto Adjust b. Brightness (0~100, 55) c. Contrast (0~100, 50) d. Color Temperature (6500/9300/Custom) e. H-Size (0~255, 127) f. H-Position (0~100, 65) g. V-Position (0~100, 49) h. Fine Tune (0~31, 17) CONFIDENTIAL DO NOT COPY Page 3-6 –...
  • Page 15 B. Audio：(Bold: Default) a. Volume (0~100, 25) b. Bass (0~100, 50) c. Treble (0~100, 50) d. Balance (-50~50, 0) e. Surround (ON/OFF) f. Speakers (ON/OFF) CONFIDENTIAL DO NOT COPY Page 3-7 – File No. SG-0221...
  • Page 16 D. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. Sleep Timer (OFF/30Min/60Min/90Min/120Min) c. Analog CC (OFF/CC1~4/TT1~4) d. Digital CC (OFF/CC1~4/Service1~6) e. Digital CC Style 1. Caption Style (As Broadcaster/Custom) 2. Size (Large/Small/Medium) 3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black) 4. Font Opacity (Solid/Translucent/Transparent) 5.
  • Page 17 AV / COMPONENT MODE A. Picture：(Bold: Default) a. Picture Mode (Standard/Movie /Game / Custom) b. Brightness (0~100, 55) c. Contrast (0~100, 50) d. Color (saturation)(0~100, 50) e. Tint (hue) (-32~32, 0) f. Sharpness (0~7, 4) g. Color Temperature (Cool/Normal/Warm/Custom) h. Advanced Video CONFIDENTIAL DO NOT COPY Page 3-9...
  • Page 18 B. Audio：(Bold: Default) a. Volume (0~100, 25) b. Bass (0~100, 50) c. Treble (0~100, 50) d. Balance (-50~50, 0) e. Surround (ON/OFF) f. Speakers (ON/OFF) CONFIDENTIAL DO NOT COPY Page 3-10 – File No. SG-0221...
  • Page 19 C. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. Sleep Timer (OFF/30Min/60Min/90Min/120Min) c. Analog CC (OFF/CC1~4/TT1~4) d. Digital CC (OFF/CC1~4/Service1~6) e. Digital CC Style 1. Caption Style (As Broadcaster/Custom) 2. Size (Large/Small/Medium) 3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black) 4. Font Opacity (Solid/Translucent/Transparent) 5.
  • Page 20 D. Parental：(Bold: Default) Password (Default => 0000) a. Cannel Block b. TV Rating c. Move Rating d. Block Unrated TV (NO/Yes) e. Access Code Edit CONFIDENTIAL DO NOT COPY Page 3-12 – File No. SG-0221...

  • Page 21: Hdmi Mode

    HDMI MODE A. Picture：(Bold: Default) a. Picture Mode (Standard/Movie /Game / Custom) b. Brightness (0~100, 55) c. Contrast (0~100, 50) d. Color (saturation)(0~100, 50) e. Tint (hue) (-32~32, 0) f. Sharpness (0~7, 4) g. Color Temperature (Cool/Normal/Warm/Custom) h. Advanced Video CONFIDENTIAL DO NOT COPY Page 3-13...
  • Page 22 B. Audio：(Bold: Default) a. Volume (0~100, 25) b. Bass (0~100, 50) c. Treble (0~100, 50) d. Balance (-50~50, 0) e. Surround (ON/OFF) f. Speakers (ON/OFF) CONFIDENTIAL DO NOT COPY Page 3-14 – File No. SG-0221...
  • Page 23 C. Setup：(Bold: Default) a. Language (English/ Français / Espaňol) b. Sleep Timer (OFF/30Min/60Min/90Min/120Min) c. Analog CC (OFF/CC1~4/TT1~4) d. Digital CC (OFF/CC1~4/Service1~6) e. Digital CC Style f. Image Cleaner (ON/OFF) g. Rest All Setting (OK/Cancel) CONFIDENTIAL DO NOT COPY Page 3-15 –...
  • Page 24 [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) signal C.
  • Page 25 Chapter 9 Trouble solvents MONITOR DISPLAY NOTHING (PC MODE) Start Is PSU output good? (check note2) Is Power board output +5V(F2)? LED is lighted Is J1，J9，J2 connector of MB good? (Orange green) Is J1，J2，J9 connector of Daughter BD good? IR/Display good? (check note1) Is DC-DC OK? Is U8 pin2 (3.3V) working ok? It is in power saving...
  • Page 26 (TV, COMPOSITE VIDEO1, 2, S-VIDEO) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check DVD player 1. Check P11&J4 signal 2. Check signal between P2 and U2 (IF AV1/AV2 mode) 3. Check Tuner &U4 (IF TV mode) U14 input correct? 4.
  • Page 27 (COMPONENT1, 2) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check host’s setting 1. Check signal from P1 & P2 P1 input correct? 2. Check system power 12V& 1. Check signal between U14&P1 U14 input correct? 2.
  • Page 28 HDMI ) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check host’s setting 1. Check p6&p7 connect U14 no data out ? 2. Check the pin18 & 19 of P6 & P7 3. Check the pin 6 of U23 & U25 4.
  • Page 29 TROUBLE OF DC-DC CONVERTER Start The voltage is about + 5V 1. Check power board J9 PIN10,11 2. Check power cable, F3 & connection J9 3. Check U8 pin1 (+5V) & pin2 (+3.3V) The voltage is about + 12V while power switch on 1.
  • Page 30 TROUBLE OF EDID READING Start Support DDC1/2B 1. Analog cable ok? Is Analog DDC OK? 2 .Check signal (U21 to P3) 3. Check U21 Voltage 4. Is protocol compliant? Support DDC1/2B 1. Analog cable ok? Is HDMI DDC OK? 2. Check signal (U23 to P6) 3.
  • Page 31 1: IR/DISPLAY BD NOT WORKING CORRECTLY NOTE Start POWER ON green check waveform from J2. Check list (1) if remote control don’t working Check IR/Hot key working correctly (i) check remote control is good (ii) when enter any key from remote control, check waveform J2 Pin8, Pin9 (2) if Hot key don’t working when enter any key from Hot Key, check...
  • Page 32 2: PSU OF PANEL NOT WORKING CORRECTLY NOTE Start Power on green check output voltage from Check list PSU. Va: 60V Vs: 190V Check PSU working correctly S-5V: 5V (If LED not light) 12V: 12V 3.3V: 3.3V 6V: 6V 19V: 19V CONFIDENTIAL DO NOT COPY Page 9-8...