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Summary of Contents for Vizio VW32L HDTV30A
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Page 1: Service Manual
Service Manual Model #: VIZIO VW32L HDTV30A_LPL 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 VW32L HDTV30A 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 VW32L HDTV30A Service Manual...
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Page 4: Chapter 2 Specification
Chapter 2 Specification 1. TFT-LCD CHARACTERISTICS Model Name: LC320WXN-SAC2 Size: 3702inch Display Size: 31.51 inches (800.4mm) diagonal Outline Dimension: 760.0 mm(H) x 450.0 mm(V) x 48.0 mm(D) (Typ.) Pixel Pitch: 170.25㎛ x 510.75㎛ x RGB Pixel Format: 1366 horiz. By 768 vert. Pixels RGB strip arrangement Display Operating Mode: Transmissive mode, normally Black Surface Treatment: Hard Coating (3H) ,Anti-glare treatment of the front polarizer. -
Page 5: Operating Precautions
5. SPEAKER Output 10W (max) X2 6. ENVIRONMENT Operating Temperature: 5c~35c (Ambient) Operating Humidity: Ta= 40 °C, 90%RH (Non-condensing) Operating Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating) 7. DIMENSIONS (Physical dimension) Width: 760 mm. +/- 20 mm Depth: 48 mm +/- 20 mm Height: 450 mm +/- 20 mm 8. - Page 6 2. 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.
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Page 25: Chapter 9 Trouble Shooting
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 green) Is U4 pin2 (+3V3SB) working ok? It is in power saving 1. - 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 P2 J4 signal 2. Check signal between P2 and U12 (IF AV1/AV2 mode) U13 input correct? 3. Check Tuner & U12 (IF TV mode) 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 P10 & P11 P3 input correct? 2. Check system power 12V& 5V(5VSB) 1. Check signal between U12 & P10 2.
- Page 28 HDMI ) IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal 2. Check host’s setting 1. Check P7 & P9 connect U13 no data out ? 2. Check the pin18 & 19 of P7 & P9 3. Check the pin 6 of U32 & U34 1.Is J9 connected good? 2.Is panel working ok? CONFIDENTIAL...
- Page 29 TROUBLE OF DC-DC CONVERTER Start The voltage is about + 5V(+5VSB) 1. Check power board J1 PIN9,PIN10,PIN11 2. Check power cable, F1 & connection J1 3. Check U4 pin1 (+5VSB) & pin2 (+3V3SB) 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 (U26 to P5) 3. Check U26 Voltage 4. Is protocol compliant? Support DDC1/2B 1. Analog cable ok? Is HDMI DDC OK? 2. Check signal (U19 to P7) 3.