Vizio VO47LFHDTV20A Service Manual

Service Manual

Model #: VIZIO VO47L

FHDTV20A_LPL

V, Inc

320A Kalmus Drive Costa Mesa, CA 92626

TEL : [phone] FAX :[phone]

Top Confidential

Table of Contents

CONTENTS PAGE

Sections

1. Features 1-1

2. Specifications 2-1

3. On Screen Display 3-1

4. Factory Preset Timings

5. Pin Assignment

4-1

5-1

6. Main Board I/O Connections 6-1

7. Theory of Circuit Operation 7-1

8. Waveforms 8-1

9. Trouble Shooting 9-1

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 VO47L FHDTV20A Service Manual

VINC. Service Manual

VIZIO VO47L FHDTV20A

COPYRIGHT © 2000 V, INC. ALL RIGHTS RESERVED.

IBM and IBM products are registered trademarks of International Business Machines Corporation.

Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc.

VINC and VINC products are registered trademarks of V, Inc.

VESA, EDID, DPMS and DDC are registered trademarks of Video Electronics Standards
Association (VESA).

Energy Star is a registered trademark of the US Environmental Protection Agency (EPA).

No part of this document may be copied, reproduced or transmitted by any means for any purpose
without prior written permission from VINC.

FCC INFORMATION
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy, and if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that the
interference will not occur in a particular installation. If this equipment does cause unacceptable
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures -- reorient or relocate the receiving antenna; increase the separation between
equipment and receiver; or connect the into an outlet on a circuit different from that to which the
receiver is connected.

FCC WARNING
To assure continued FCC compliance, the user must use a grounded power supply cord and the
provided shielded video interface cable with bonded ferrite cores. Also, any unauthorized changes
or modifications to Amtrak products will void the user’s authority to operate this device. Thus VINC
Will not be held responsible for the product and its safety.

CE CERTIFICATION
This device complies with the requirements of the EEC directive 89/336/EEC with regard to
“Electromagnetic compatibility.”

SAFETY CAUTION
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 VO47L FHDTV20A Service Manual

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. High quality 1920X1080 pixel by pixel display.

7. Smoothing function enables display of smooth texts and graphics even if

image with resolution lower than 1920X1080 is magnified

8. Advanced video functions for personal favor.

9. Picture In Picture (PIP) funtion to show TV or VCR images

10. Power saving to reduce consumption power to less than 0.5W

11. On Screen Display: user can define display mode (i.e. color, brightness,

contrast, sharpness, backlight), sound setting, PIP, TV channel program,

aspect and gamma or reset all setting.

CONFIDENTIAL – DO NOT COPY

Page 1-1

File No. SG-0275

Chapter 2 Specification

1. TFT-LCD CHARACTERISTICS

Model Name: LC470WUN-SAA1 (Vendor: LG. Display)

Display Size: 46.96 inches (1192.87mm) diagonal

Outline Dimension: 1096.0 mm (H) x 640.0 mm (V) x 51.0 mm (D) (Typ.)

Pixel Pitch: 0.5415mm x 0. 5415mm 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%).

2. TFT-LCD OPTICAL CHARACTERISTICS

Contrast ratio: 1300(Typ) _ LC470WUN-SAA1

Surface Luminance, White: 500 cd/m

2 (Typ)

Luminance Variation, δ=1.3 (Max)

Response Time = 5ms (Max=8ms)

Viewing Angle (CR>10)

Left: 89° (min).

Right: 89° (min).

Top: 89° (min).

Bottom: 89° (min).

3. Input Connectors

1x Co-axial RF (ATSC/QAM/NTSC)

4x HDMI™** with HDCP (1 with Stereo Audio RCA)

2x Component YPbPr plus Stereo Audio

1x RGB PC plus Stereo Audio

1x S-Video plus Stereo Audio (shared with AV1)

2x Composite Video plus Stereo Audio (AV1 & AV2)

CONFIDENTIAL – DO NOT COPY

Page 2-1

File No. SG-0275

4. POWER SUPPLY

Input Voltage Level: 100~240 Vac, 50/ 60 Hz

Power Consumption: 400W Max. Power Off / Standby: to less than 0.5W

5. SPEAKER

Output 10W (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. DIMENSIONS (Physical dimension)

Dimensions with stand：

1129.5mm(W) x 754.3mm(H) x 261.9mm(D) inches

Dimension without stand：

1129.5mm(W) x 720.7mm(H) x 116.7mm(D) inches

8. WEIGHT (Physical weight)

a. Net 34.7 +/- 0.5 kgs

b. Gross 42.45 +/- 1.0 kgs

Precaution

Please pay attention to the followings when you use this TFT LCD module.

1. 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.)

CONFIDENTIAL – DO NOT COPY

Page 2-2

File No. SG-0275

(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.

(5) When fixed patterns are displayed for a long time, remnant image is likely

to occur.

(6) Module has high frequency circuits. System manufacturers shall do

sufficient suppression to the electromagnetic interference. Grounding and

shielding methods may be important to minimize the interference.

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.

(2) When the module with protection film attached is stored for a long time,

sometimes there remains a very small amount of glue still on the bezel after

the protection film is peeled off.

(3) You can remove the glue easily. When the glue remains on the bezel

surface or its vestige is recognized, please wipe them off with absorbent

cotton waste or other soft material like chamois soaked with

normal-hexane.

CONFIDENTIAL – DO NOT COPY

Page 2-3

File No. SG-0275

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 OK
CH + ↑
CH - ↓
VOL + ←
VOL - →

Input

[MENU]

“MENU” button could star the OSD which could adjust the performance and set up the setting

between the different input sources. There are the structures.

TV Source

CONFIDENTIAL – DO NOT COPY

Page 3-1

File No. SG-0275

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. Color Enhancement (Normal,Rich Color,Green/Flesh,Green/Blue,Off)

3. Advanced Adaptive Luma (Low /Medium/Strong/Extend/Off)

4. Enhanced Contrast Ratio (Off/On)

5. Color Temperature (Cool/Normal/Warm/Custom)

i. Reset Picture Mode

B. Audio: (Bold: Default)

a. Audio Mode (Flat/Rock/Pop/Classic/Jazz)

b. Equalizer

CONFIDENTIAL – DO NOT COPY

Page 3-2

File No. SG-0275

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

C. TV: (Bold: Default)

a. Tuner Mode (Cable/Antenna)

b. Auto Search

c. Partial Channel Search

d. Skip Channel

e. MTS (ATV:Mono/Stereo/Sap；DTV:Language1/Language2/Language3)

f.

Time (Eastern/Atlantic/Indiana/Cential/Mountain/Arizona/Newfoundland/Pacific/Alaska/Hawaii)

g. Daylight Saving (On/Off)

CONFIDENTIAL – DO NOT COPY

Page 3-3

File No. SG-0275

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.

4. Size (Small/Medium/Large)

5. Audio Source (Main/PIP)

c. Sleep Timer (Off/30Min/60Min/90Min/120Min)

d. Wide (Wide/Zoom/Panoramic/Normal)

e. Input Naming (AV1/AV2/Component1/Component2/RGB/HDMI1/HDMI2/HDMI3/

f. CC

1. CC (Off/CC1~4/Service1~6)

2. Digital CC Style

PIP Position(Bottom Right/Bottom Center/Bottom Left/Middle Left/Top

Left/Top Center/Top Right/Middle Right)

HDMI4)

a). Caption Style (As Broadcaster/Custom)

b). Font Size (Large/Small/Medium)

CONFIDENTIAL – DO NOT COPY

Page 3-4

File No. SG-0275