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Vizio L32HDTV10A Service Manual
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Vizio L32HDTV10A Service Manual

Service manual
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Service Manual

Model #: VIZIO L32HDTV10A
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 L32HDTV10A

  • Page 1: Service Manual

    Service Manual Model #: VIZIO L32HDTV10A 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 L32HDTV10A 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 L32HDTV10A 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 ,TV and DTV out 5. Built in auto adjust function for automatic adjument of screen display 6.
  • Page 5 Chapter 2 Specification 1. LCD CHARACTERISTICS Type: WXGA TFT LCD Size: 37 inch Display Size: 37.02 inches (940.3mm) diagonal Outline Dimension: 877.0/878.0 mm (H) x 516.8 mm (V) x 55.5 (D) mm (Typ.) Pixel Pitch: 0.200mm x 0.600mm x RGB Pixel Format: 1366 horiz.
  • Page 6 b. Signal Level Video (Y): Analog 0.1Vp-p/75 Video (C): Analog 0.286p-p/75 Sync (H+V): 0.3V below Video (Y) c. Frequency H: 15.734KHz V: 60Hz (NTSC) 3.2.3 F-Type TV RF connector 3.2.3.1 NTSC System: a. Signal Level: Analog 1Vp-p typical(45dB~90dB) b. System :NTSC c.
  • Page 7 b. Signal Level Video (R, G, B) : Analog 0.7Vp-p/75 Sync (H, V) : TTL level c. Sync Type TTL (Separate / Composite) or Sync. On-Green d. Sync polarity Positive or Negative e. Frequency : H: support to 30K~70KHz V: support to 50~85Hz Pixel Clock: support to 110MHz 3.2.5 HDMI Signal (Digital HD): a.
  • Page 8 b. Type: TYPE A c. Polarity: Positive or Negative d. Frequency: H: 15.734KHz V: 60Hz (NTSC-480i) H: 31KHz V: 60Hz (NTSC-480p) H: 45KHz V: 60Hz (NTSC-720p) H: 33KHz V: 60Hz (NTSC-1080i) CONFIDENTIAL – DO NOT COPY Page 2-4 File No. SG-0182...
  • Page 9 3.2.6 Component signal (Analog HD1 and Analog HD2) 3.2.6.1 Analog HD1 a. Frequency H: 15.734KHz V: 60Hz (NTSC-480i) H: 31KHz V: 60Hz (NTSC-480p) H: 45KHz V: 60Hz (NTSC-720p) H: 33KHz V: 60Hz (NTSC-1080i) b. Signal level Y: 1Vp-p Pb: ±0.350Vp-p Pr: ±0.350Vp-p c.
  • Page 10 8. DIMENSIONS (Physical dimension) Width: 959.9 Depth: 311.0 Height: 748.4 9. WEIGHT (Physical weight) a. Net: 25.9 b. Gross: 33.5 9-1. MOUNTING PRECAUTIONS (1) You must mount a module using holes arranged in four corners or four sides. (2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the module.
  • Page 11 9-2. OPERATING PRECAUTIONS (1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage : V=±200mV(Over and under shoot voltage) (2) Response time depends on the temperature.(In lower temperature, it becomes longer.) (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.
  • Page 12 Chapter 3 On Screen Display Main unit button Power Input CH ▲ CH ▼ VOL + VOL - MUTE / EXIT MENU TV Source A. PICTURE ADJUST： a. PICTURE MODE (USER/ VIVID1 /VIVID2 / VIVID3) b. Adjust the BACKLIGHT (0~100) c.
  • Page 13 e. SKIP CHANNEL (YES/NO) D. PARENTAL CONTROL： a. PARENT LOCK ENABLE (ON/OFF) b. TV RATING c. MOVIE RATING d. ACCESS CODE EDIT E. PIP SETUP： a. STYLE (OFF/PIP/POP) b. Source (AV1、AV2、AV3、ANALOGHD1、ANALOG HD2、DIGITAL HD RGB、DTV) c. SIZE (SMALL (20%)/MEDIUM (30%)/LARGE (40%)) d.
  • Page 14 C. AUDIO ADJUST： a. VOLUME (0~100) b. BASS (0~100) c. TREBLE (0~100) d. BALANCE (0~100) e. SURROUND (ON/OFF) f. REVERB (OFF, CONCERT, LIVING ROOM, HALL, ARENA) g. MUTE (ON/OFF) h. SPEAKERS (ON/OFF) D. PIP SETUP： a. STYLE (OFF/PIP/POP) b. SOURCE (AV1、AV2、AV3、TV) c.
  • Page 15 f. REVERB (OFF, CONCERT, LIVING ROOM, HALL, ARENA) g. MUTE (ON/OFF) h. SPEAKERS (ON/OFF) i. AUDIO SOURCE(DIGITAL HD/DTV) C. PARENTAL CONTROL： a. PARENT LOCK ENABLE (ON/OFF) b. TV RATING c. MOVIE RATING d. ACCESS CODE EDIT D. PIP SETUP： a. STYLE (OFF/PIP/POP) b.
  • Page 16 B. AUDIO ADJUST： a. VOLUME (0~100) b. BASS (0~100) c. TREBLE (0~100) d. BALANCE (0~100) e. SURROUND (ON/OFF) f. REVERB (OFF, CONCERT, LIVING ROOM, HALL, ARENA) g. MUTE (ON/OFF) h. SPEAKERS (ON/OFF) C. PARENTAL CONTROL： a. PARENT LOCK ENABLE (ON/OFF) b.
  • Page 17 g. Adjust the SHARPNESS (0~100) B. AUDIO ADJUST： a. VOLUME (0~100) b. BASS (0~100) c. TREBLE (0~100) d. BALANCE (0~100) e. SURROUND (ON/OFF) f. REVERB (OFF, CONCERT, LIVING ROOM, HALL, ARENA) g. MUTE (ON/OFF) h. SPEAKERS (ON/OFF) C.DTV OSD a. DTV TUNER SETUP 1.
  • Page 18 2. DIGITAL COLOSED CAPTION α.OFF β.SERVICE1 γ.SERVICE2 δ.SERVICE3 ε.SERVICE4. ζ.SERVICE5 η.SERVICE6 3. DIGITAL CAPTION STYLE PRESS<OK> (1) AS BROADCASTER (2)CUSTOM FONT SIZE α.LARGE β.SMALL γ.MEDIUM FONT COLOR α.BLACK β.WHITE γ.GREEN δ.BLUE ε.RED ζ.CYAN η.YELLOW θ.MAGENTA FONT OPACITY α.SOLID β.TRANSLUCENT γ.TRANSPARENT BLACKGROUND COLOR α.BLACK β.WHITE...
  • Page 19 η.YELLOW θ.MAGENTA BLACKGROUND OPACITY α.SOLID β.TRANSLUCENT γ.TRANSPARENT WINDOW COLOR α.BLACK β.WHITE γ.GREEN δ.BLUE ε.RED ζ.CYAN η.YELLOW θ.MAGENTA WINDOW OPACITY α.SOLID β.TRANSLUCENT γ.TRANSPARENT c.PARENTAL CONTROL PASSWORD PRESS<OK> 1.0000 2.CHANNEL BLOCK PRESS<OK> D. PARENTAL CONTROL： a. PARENT LOCK ENABLE (ON/OFF) b. TV RATING c.
  • Page 20 F. SPECIAL FEATURES： a. LANGUAGE (ENGLISH/FRANCE/SPANISH) b. SLEEP TIMER (OFF/30/60/90/120) c. WIDE FORMAT (NORMAL/WIDE) d. RESET ALL SETTING CONFIDENTIAL – DO NOT COPY Page 3-9 File No. SG-0182...
  • Page 21 Chapter 10 Trouble shooting MONITOR DISPLAY NOTHING (PC MODE) Start Is Power board output +5V? LED is lighted Is J1 connector good? Is DC-DC OK? Is 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 22 (TV, COMPOSITE VIDEO1, 2, 3, S-VIDEO) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal good? 2.Check DVD player 1.Check P2 signal 2.Check signal between P2 and U20 (IF AV1/AV2 mode) U20 input correct? 3.Check Tuner &U20 (IF TV mode) 4.Check J4&J6 (IF AV3&S-Video) 5.Check U20 POWER +9V 6.Check U22 data input/output...
  • Page 23 (COMPONENT1, 2) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal good? 2.Check host’s setting 1.Check signal between P8&U21 U21 input correct? 2.Check U21 power 3.3V 1.Check signal between U21&U9 U9 input correct? 2.Check U9 Clock (27MHZ) 1.Check U9 2.Check U9 power 3.3V 1.8V LVDS output correct ? 1.Is J6 connected good? 2.Is panel working ok?
  • Page 24 HDMI ) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal good? 2.Check host’s setting 1.Check p1 connect U16 input correct? 2.Check signal between P1 and 1.Check U16 power U16 no data out ? 2.Check between signal U16 and 3.Check clock 28.224MHZ 1.Is J6 connected good? 2.Is panel working ok? CONFIDENTIAL –...
  • Page 25 TROUBLE OF DC-DC CONVERTER Start The voltage is about + 5V 1.Check power board J1 PIN 9,10,11 2.Check power cable connection The voltage is about + 12V while power switch on J1 PIN 2,3,4,5 1.J1 connection good 2.Check U9 GPIO Pin 3.Check power board The voltage is about +5V while power switch on...
  • Page 26 TROUBLE OF DDC READING Start Support DDC1/2B 1.Analog cable ok? 2.Check signal (U18 to P3) Analog DDC OK? 3.Check U18 Voltage 4.Is compliant protocol? Support DDC1/2B 1.Analog cable ok? 2.Check signal (U17 to P1) HDMIDDC OK? 3.Check U17 Voltage 4.Is compliant protocol? CONFIDENTIAL –...
  • Page 27 TROUBLE OF THE DTV CONFIDENTIAL – DO NOT COPY Page 10-7 File No. SG-0182...

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