Vizio VW47L Service Manual

Service Manual

Model #: VIZIO VW47L

FHDTV10A_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

Block Diagram

VIZIO VW47L FHDTV10A_LPL Service Manual

VINC Service Manual

VIZIO VW47L FHDTV10A_LPL A

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 VW47L FHDTV10A_LPL Service Manual

Chapter 1 Features

1. Built in TV channel selector for TV viewing

2. Simultaneous display of PC and TV images

3. Connectable to PC’s analog RGB port

4. Built in HDTV, composite video, S-Video ,HDMI ,ATV out and DTV out ,Audio

line out, Audio optical out

5. Built in auto adjust function for automatic adjument of screen display

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

with resolution lower than 1920x1080 is magnified

7. Power saving to reduce consumption power too less than 3W

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

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

and gamma or reset all setting.

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Chapter 2 Specification

1. TFT LCD CHARACTERISTICS

47.0”WUXGA TFT LCD

Item Specification

Active Screen Size 46.96 inch (1192.87mm) diagonal

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

Pixel Pitch 0.5415 mm x 0.5415 mm

Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement

Color Depth 8-bit, 16.7 M colors

Luminance, White 500 cd/m2 (Center 1point ,Typ.)

Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Typ.), U/D 178 (Typ.))

Power Consumption

Weight 16.5 Kg (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer

Total 262.56W (Typ.) (Logic=7.56W, Inverter=255 W [IBL=

6.5mA] )

2.Input Connectors

Service port (USB) , HDMIX3, RCA (DVI Audio IN),D-SUB15PIN (MINI, 3rows),

RCAX2 (Component), RCAX2 (Audio IN) , RCAX1 (Audio IN), RCA (Composite) ,

S-Video (Composite), Tuner

3.Output Connectors

SPDIF Out (Optical Audio) , RCA (Audio OUT)

4. Power Supply

Power Consumption: 433.5W MAX

Power OFF: to less than 0.6W MAX

5.Speaker

Output 6Ω/10W (max) X2

6. ENVIRONMENT

6-1. Operating Temperature: 5c~35c (Ambient)

6-2. Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing)

6-3. Operating Altitude: 0 - 14,000 feet (Non-Operating)

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7. Dimensions (Physical dimension)

With Base Without Base

a. Height 755.6mm 724mm

b. Width 1129.5mm 1129.5mm

c. Depth 267mm 114.3mm

8. Weight (Physical weight)

a. Net 35.5 +/- 0.5 kgs

b. Gross 42.9 +/- 1.0 kgs

9. Precautions

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

9-1. Mounting Precautions

(1) You must mount a module using holes arranged in four cornersor four sides.

(2) You should consider the mounting structure so that uneven force (ex. Twisted

stress) is not applied to the module. And the case on which a module is

mounted should have sufficient strength so that external force is not transmitted

directly to the module.

(3) Please attach the surface transparent protective plate to the surface in order to

protect the polarizer. Transparent protective plate should have sufficient

strength in order to the resist external force.

(4) You should adopt radiation structure to satisfy the temperature specification.

(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 polarizers with glass,tweezers or

anything harder than HB pencil lead. And please do not rub with dust clothes

with chemical treatment. Do not touch the surface of polarizer for bare hand or

greasy cloth.(Some cosmetics are detrimental to the polarizer.)

(7) When the surface becomes dusty, please wipe gently with absorbent cotton or

other soft materials like chamois soaks with petroleum benzine. 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.

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(8) Wipe off saliva or water drops as soon as possible. Their long time contact with

polarizer causes deformations and color fading.

(9) Do not open the case because inside circuits do not have sufficient strength.

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.

(4) Be careful for condensation at sudden temperature change. Condensation

makes damage to polarizer or electrical contacted parts. And after fading

condensation, smearor 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. Sufficient suppression to the

electromagnetic interference shall be done by system manufacturers.

Grounding and shielding methods may be important to minimized the

interference.

(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise,

LCM can’t be operated its full characteristics perfectly.

(8) A screw which is fastened up the steels should be a machine screw. (if not, it

causes metallic foreign material and deal LCM afatal blow)

(9) Please do not set LCD on its edge.

9-3. Electrostatic Discharge Control

Since a module is composed of electronic circuits, it is not strong to electrostatic

discharge. Make certain that treatment persons are connected to ground through

wrist band etc. And don’t touch interface pin directly.

9-4. Precautions for Strong Light Exposure

Strong light exposure causes degradation of polarizer and color filter.

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9-5. Storage

When storing modules as spares for a long time, the following precautions are

necessary.

(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent

light. Keep the temperature between 5°C and 35°C at normal humidity.

(2) The polarizer surface should not come in contact with any other object. It is

recommended that they be stored in the container in which they were shipped.

9-6. Handling Precautions for Protection Film

(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 thebezel surface or

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

other soft material like chamois soaked with normal- hexane.

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Chapter 3 On Screen Display

Main unit button

Power

MENU

CH ▲

CH ▼

VOL +

VOL -

Input

On Screen Display

TV Source

A. Picture：

a. Picture Mode (Custom/ Standard / Movie / Game)

b. Backlight (0~100)

c. Brightness (0~100)

d. Contrast (0~100)

e. Color (0~100)

f. Tint (-32~32)

g. Sharpness (0~7)

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

h-1. Custom： Red (0~255)

Green (0~255)

Blue (0~255)

i. Advanced Video

i-1. DNR(Off/Low/Medium/Strong)

i-2. Black Level Extender (On/Off)

i-3. White Peak Limiter (On/Off)

i-4 CTI(Off/Low/Medium/Strong)

i-5 Flesh Tone (On/Off)

i-6 Adaptive Luma (On/Off)

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B. Audio：

a. Volume (0~100)

b. Bass (0~100)

c. Treble (0~100)

d. Balance (-50~50)

e. Surround (On/Off)

f. Digital Audio Out (Off/Dolby Digital/PCM)

g. Speakers (On/Off)

h. Lip Sync (0~5)

C. TV：

a. Tuner Mode (Antenna/Cable)

b. Auto Search

c. Skip Channel (Cable 1~135 / Antenna 2~69)

d. MTS (Stereo/SAP/Mono)

e. Time Zone (Hawaii/Eastern/Indiana/Central/Mountain/Arizona/Pacific/Alaska)

f. Daylight Saving (On/Off)

D. Setup：

a. Language (English/Francais/Espanol)

b. Sleep Timer (Off/30 Minutes/60 Minutes /90 Minutes /120 Minutes)

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

d. Input Naming (AV/Comp1/Comp2/RGB/HDMI1/ HDMI2/ HDMI3)

e. CC (Off/CC1/ CC2/ CC3/ CC4)

f. CC On Mute (Off/On)

g. Digital CC Style

g-1. Caption Style (Custom/As Broadcaster)

Custom：

g-2. Font Size (Large/Small/Medium)

g-3. Font Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-4. Font Opacity (Translucent/solid/Transparent)

g-5. Background Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-6. Background Opacity (Translucent/solid/Transparent)

g-7. Window Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-8. Window Opacity (Translucent/solid/Transparent)

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h. H/V Position

h-1. H.Position (0~64)

h-2. V.Position (0~32)

h-3. H.Size (0~100)

h-4. V.Size (0~100)

i. Reset All Setting

E. Parental：

a. PASSWORD

RGB Mode

A. Picture：

a. Auto Adjust (Run)

b. Backlight (0~100)

c. Brightness (0~100)

d. Contrast (0~100)

e. Color Temperature(Custom/6500/9300)

e-1. Custom： Red (0~255)

Green (0~255)

Blue (0~255)

f. H-size (0~255)

g. H-Position (0~100)

h. V-Position (0~100)

i. Fine Tune (0~31)

B. Audio：

a. Volume (0~100)

b. Bass (0~100)

c. Treble (0~100)

d. Balance (-50~50)

e. Surround (On/Off)

f. Digital Audio Out (Off/Dolby Digital/PCM)

g. Speakers (On/Off)

h. Lip Sync (0~5)

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C. Setup：

a. Language (English/Francais/Espanol)

b. Sleep Timer (Off/30 Minutes/60 Minutes /90 Minutes /120 Minutes)

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

d. Input Naming (AV/Comp1/Comp2/RGB/HDMI1/ HDMI2/ HDMI3)

e. Reset All Setting

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HDMI MODE

A. Picture：

a. Picture Mode (Custom/ Standard / Movie / Game)

b. Backlight (0~100)

c. Brightness (0~100)

d. Contrast (0~100)

e. Color (0~100)

f. Tint (-32~32)

g. Sharpness (0~7)

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

h-1. Custom：Red (0~255)

Green (0~255)

Blue (0~255)

i. Advanced Video

i-1. DNR(Off/Low/Medium/Strong)

i-2. Black Level Extender (On/Off)

i-3. White Peak Limiter (On/Off)

i-4 CTI(Off/Low/Medium/Strong)

i-5 Flesh Tone (On/Off)

i-6 Adaptive Luma (On/Off)

B. Audio：

a. Volume (0~100)

b. Bass (0~100)

c. Treble (0~100)

d. Balance (-50~50)

e. Surround (On/Off)

f. Digital Audio Out (Off/Dolby Digital/PCM)

g. Speakers (On/Off)

h. Lip Sync (0~5)

C. Setup：

a. Language (English/Francais/Espanol)

b. Sleep Timer (Off/30 Minutes/60 Minutes /90 Minutes /120 Minutes)

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

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d. Input Naming (AV/Comp1/Comp2/RGB/HDMI1/ HDMI2/ HDMI3)

e. H/V Position

e-1. H.Position (0~64)

e-2. V.Position (0~32)

e-3. H.Size (0~100)

e-4. V.Size (0~100)

f. Reset All Setting

Video Sources：

AV1、AV2、COMPONENT1、COMPONENT2

A. Picture：

a. Picture Mode (Custom/ Standard / Movie / Game)

b. Backlight (0~100)

c. Brightness (0~100)

d. Contrast (0~100)

e. Color (0~100)

f. Tint (-32~32)

g. Sharpness (0~100)

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

h-1. Custom： Red (0~255)

Green (0~255)

Blue (0~255)

i. Advanced Video

i-1. DNR(Off/Low/Medium/Strong)

i-2. Black Level Extender (On/Off)

i-3. White Peak Limiter (On/Off)

i-4 CTI(Off/Low/Medium/Strong)

i-5 Flesh Tone (On/Off)

i-6 Adaptive Luma (On/Off)

B. Audio：

a. Volume (0~100)

b. Bass (0~100)

c. Treble (0~100)

d. Balance (-50~50)

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e. Surround (On/Off)

f. Digital Audio Out (Off/Dolby Digital/PCM)

g. Speakers (On/Off)

h. Lip Sync (0~5)

C. Setup：

a. Language (English/Francais/Espanol)

b. Sleep Timer (Off/30 Minutes/60 Minutes /90 Minutes /120 Minutes)

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

d. Input Naming (AV/Comp1/Comp2/RGB/HDMI1/ HDMI2/ HDMI3)

e. CC (Off/CC1/ CC2/ CC3/ CC4)

f. CC On Mute (Off/On)

g. Digital CC Style

g-1. Caption Style (Custom/As Broadcaster)

Custom：

g-2. Font Size (Large/Small/Medium)

g-3. Font Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-4. Font Opacity (Translucent/solid/Transparent)

g-5. Background Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-6. Background Opacity (Translucent/solid/Transparent)

g-7. Window Color (white/Green/Blue/Red/Cyan/Yellow/Magenta/Black)

g-8. Window Opacity (Translucent/solid/Transparent)

h. H/V Position

h-1. H.Position (0~64)

h-2. V.Position (0~32)

h-3. H.Size (0~100)

h-4. V.Size (0~100)

i. Reset All Setting

D. Parental：

a. PASSWORD

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Chapter 9 Trouble shooting

MONITOR DISPLAY NOTHING (PC MODE)

Start

LED is lighted

N0

1. Is Power board output
+5VSB &DV12?

2. Is J1 connector good?

3. Is DC-DC OK?

4. Is U14 (+5V) working ok?

LED is lighting?

Is backlight on?

Yes

Yes

N0

N0

N0

It is in power saving

1. Check video cable

2. Is the timing supported?

3. Check sync input

4. Check VGA SOG rout if analog

(SOG)

1.Check J1 PIN1

2.Is Power Board ok?

Yes
Yes

N0

U13 no data out?

It means data to LVDS

1.Is J8 connecting OK?

2.Check J1 +5V & +12V

3.Is panel ok?

4.

Check P5 D-sub Input correct

5. Check analog input route

Yes

END

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(TV,

COMPOSITE VIDEO ) IS NOT DISPLAY CORRECTLY

Star t

N0

Input signal good?

1. Check video

2. Check DVD player

Yes

U13 input correct?

Yes

U13 output correct?

Yes

LVDS output correct?

Yes

1. Check J8 Connect is good?

2. Is panel working ok?

END

N0

N0

N0

1. Check P2(VIDEO) signal

2. Check signal between U13 (IF IN AV

mode)

1. Check U13 :DV33&DV12&AV15&AV12

2. Check X1 is OK?

1. Check LVDS LINE

2. Check U13 clock (60MHz)

3. Check LVDS 5V or 12V

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(COMPONENT)

IS NOT DISPLAY CORRECTLY

Star t

N0

Input signal good?

Yes

N0

P3 input correct?

Yes

N0

U13 input correct?

Yes

N0

1.Check video

2.Check host’s setting

1.Check signal between P3

2.Check power 12V& 5v

1.Check signal between U14&P1

2.Check U13 Clock (60MHZ)

3.Check U13 :DV33&DV12&AV15&AV12

LVDS output correct ?

Yes

1.Is J8 connected good?

2.Is panel working ok?

END

1.Check U13

2. Check LVDS 5V or 12V

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(

HDMI) IS NOT DISPLAY CORRECTLY

Star t

N0

Input signal good?

1.Check video

2.Check host’s setting

N0

U13 no data out ?

1.Is J8 connected good?

2.Is panel working ok?

Yes

Yes

1.Check U13 power

2.Check between signal U13

3.Check U13 clock 60MHZ

Yes

END

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N0

age is abou

ROUBLE OF DC-DC CONVERTER

Star t

J1 PIN9,10,11

J1 PIN 2,3,4

U14 pin 5 6 7 8

U22,U15 pin2

U20 pin2

Yes

N0

The voltage is about 5VSB

1. Check power board

2. Check power cable connection J1

The voltage is about + 12V while power switch on

1. J1 connection good

2. Check J1 Pin2,3,4 transform +5V_TUNER

3. Check power board

The voltage is about +5V while power switch on

1. J1 connection good

2. Check U13 OPWRSB & OPCTRL2 Pin

The voltage is about +3.3V

The voltage is about +1.8V

U17 pin2

U21 pin2

U19 pin2

U18 pi2

END

The voltage is about +3.3V

The volt

The voltage is about +2.5V

The voltage is about +1.1V

t +1.25V

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TROUBLE OF DDC READING

Star t

Yes

Analog DDC OK?

Yes

HDMIDDC OK?

Yes

N0

N0

Support DDC1/2B

1. VGA cable ok?

2. Check signal (U31 to P5)

3. Check U31 Voltage

4. Is compliant protocol?

Support DDC1/2B

1. HDMI cable ok?

2. Check signal (U32 to P7)

3. Check signal (U33 to P8)

4. Check signal (U34 to P9)

5. Is compliant protocol?

END

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(TV_SIDE, AUDIO) IS NOT DISPLAY CORRECTLY

Star t

N0

Input signal good?

1. Check Audio source

2. Check the player of source

Yes

input correct?

Yes

J3 output correct?

Yes

Check signal correct?

Yes

U45(MT8292) Volt

Yes

U45 output correct?

N0

N0

N0

N0

N0

1. Check signal of Main Board(

2. Check signal of Audio Board (J3

output/J1 Input)

3. Check the wire of Main Board to

Audio Board

1. Check the output volt of J3 output

&U7 L/R output of Audio Board

1. Check MT8292

CE94(ChL)and C95(ChR) AV i n

CE96(ChL) and CE97(ChR)Lineout

1. Check 12V&8292_9V of U45

1. Check DV33 of U45

1. Check feedback resistor and

capacitor.

Yes

END

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