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Vizio VX37L Service Manual
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Vizio VX37L Service Manual

Vizio VX37L Service Manual

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Service Manual

Model #: VIZIO VX37L HDTV
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 VX37L

  • Page 1: Service Manual

    Service Manual Model #: VIZIO VX37L HDTV 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 VX37L HDTV 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 VX37L HDTV 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: LPL LC370WX1-SLA1 Size: 3702inch Display Size: 37.02 inches (940.3mm) diagonal Outline Dimension: 877.0 mm (H) x 516.8 mm (V) x 55.5 mm (D) (Typ.) Pixel Pitch: 0.200mm x 0.600mm x RGB Pixel Format: 1366 horiz. By 768 vert. Pixels RGB strip arrangement Contrast ratio: 1.CR : 1000(Typ) 2.
  • Page 6 6.Speaker Output 10W (max) X2 7. ENVIRONMENT 5-1. Operating Temperature: 5c~35c (Ambient) 5-2. Operating Humidity: Ta= 35 C, 90%RH (Non-condensing) 5-3. Operating Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating) 8. DIMENSIONS (Physical dimension) Width: 800 mm. +/- 20 mm Depth: 1060 mm +/- 20 mm Height: 360 mm +/- 20 mm...
  • Page 7 (7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause chemical damage to the polarizer.
  • Page 8 9-3. HANDLING PRECAUTIONS FOR PROTECTION (1) The protection film is attached to the bezel with a small masking tape. When the protection film is peeled off, static electricity is generated between the film and polarizer. This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-blown equipment or in such a condition, etc.
  • Page 9 Chapter 3 On Screen Display Main unit button Power MENU VOL + VOL - Input TV Source A. Picture Adjust a. Picture Mode (Standard/Movie /Game / Custom) b. Backlight (0~100) c. Contrast (0~100) d. Brightness (0~100) e. Color (saturation)(0~100) f. Tint (hue) (0~100) g.
  • Page 10 D. TV Tuner Setup a. Tuner Mode (Cable/Air) b. Auto Search c. Skip Channel E. Parental Control a. Parental Lock Enable (ON/OFF) b. TV Rating c. Move Rating d. Block Unrated TV (NO/Yes) e. Access Code Edit RGB Mode A. Picture Adjust a.
  • Page 11 AV COMPONENT MODE A. Picture Adjust a. Picture Mode (Standard/Movie /Game / Custom) b. Backlight (0~100) c. Contrast (0~100) d. Brightness (0~100) e. Color (saturation)(0~100) f. Tint (hue) (0~100) g. Sharpness (0~7) h. Color Temperature (Cool/Normal/Warm/Custom) B. Audio Adjust a. Volume (0~100) b.
  • Page 12 HDMI MODE A. Picture Adjust a. Picture Mode (Standard/Movie /Game / Custom) b. Backlight (0~100) c. Contrast (0~100) d. Brightness (0~100) e. Color (saturation)(0~100) f. Tint (hue) (0~100) g. Sharpness (0~7) h. Color Temperature (Cool/Normal/Warm/Custom) B. Audio Adjust a. Volume (0~100) b.
  • Page 13 Chapter 9 Trouble shooting MONITOR DISPLAY NOTHING (PC MODE) Start Is Power board output +5V? LED is lighted Is J7 connector good? Is DC-DC OK? Is U6&U4 (3.3V) working ok? It is in power saving Check video cable Is the timing supported? LED is lighting? Check sync input Check VGASOG rout if analog...
  • Page 14 (TV, COMPOSITE VIDEO1, 2, S-VIDEO) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal 2.Check DVD player 1.Check P2&P12 signal 2.Check signal between P2 and U11 (IF AV1/AV2 mode) 3.Check Tuner &U11 (IF TV mode) U11 input 4.Check P12 (IF S-Video) 5.Check U11 POWER +3.3V 6.Check Y1 is OK? U11 output...
  • Page 15 (COMPONENT1, 2) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal 2.Check host’s setting 1.Check signal between P4 2.Check power 12V& 5v P4 input 1.Check signal between U11&P4 U11 input 2.Check U11 Clock (27MHZ) 1.Check U11 2.Check U11 power LVDS output 3.3V&1.25v&1.8v 1.Is J5 connected good? 2.Is panel working ok?
  • Page 16 HDMI ) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal 2.Check host’s setting 1.Check p10&p11 connect U11 no data 2.Check signal between U31 and U19 1.Check U11 power U31 input 2.Check between signal U19 and U11 3.Check U19 clock 27MHZ 1.Is J6 connected good? 2.Is panel working ok? CONFIDENTIAL...
  • Page 17 TROUBLE OF DC-DC CONVERTER Start The voltage is about + 5V 1.Check power board 2.Check power cable connection J7 The voltage is about + 12V while power switch on J7 PIN 2,3,4 1.J7 connection good 2.Check J7 Pin1 is up to 3V? 3.Check power board The voltage is about +5V U1 pin 5 6 7 8...
  • Page 18 TROUBLE OF DDC READING Start Support DDC1/2B 1.Analog cable ok? 2.Check signal (U20 to P3) Analog DDC 3.Check U20 Voltage 4.Is compliant protocol? Support DDC1/2B 1.Analog cable ok? 2.Check signal (U32 to P10) HDMIDDC 3. Check signal (U34 to P11) 4.Is compliant protocol? CONFIDENTIAL DO NOT COPY...