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Service Manual
Model #: VIZIO VW46L
FHDTV10A_MT5382_AUO
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
Top Confidential
Page 2
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 VW46L FHDTV10A_MT5382_AUO Service Manual
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VINC Service Manual
VIZIO VW46L FHDTV10A_MT5382_AUO
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 VW46L FHDTV10A_MT5382_AUO Service Manual
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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
46.0”WUXGA TFT LCD
Item Specification
Active Screen Size 46 inch diagonal
Outline Dimension 1083.0(H) x 627.0 (V) x 50.6 mm(D) (Typ.)
Pixel Pitch 0.53025 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8-bit, 16.7 M colors
Luminance, White 550 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Typ.), U/D 178 (Typ.))
Power Consumption Total 320W (MAX.)
Weight 16.5 Kg (Typ.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer
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: 320W MAX
Power OFF: to less than 0.6W MAX
5.Speaker
Output 6Ω/10W (max) X2
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6. ENVIRONMENT
Operating Temperature: 5c~35c (Ambient)
Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing)
Operating Altitude: 0 - 14,000 feet (Non-Operating)
7. Dimensions (Physical dimension)
With Base Without Base
a. Height 773mm 744.5mm
b. Width 1123mm 1123mm
c. Depth 245mm 99.5mm
8. Weight (Physical weight)
a. Net 27.81 kgs
b. Gross 34.11 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.
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(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.
(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.
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(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.
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
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)
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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. 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. 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)
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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)
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)
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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
Start
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
Start
N0
Input signal good?
1.Check video
2.Check host’s setting
Yes
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
ROUBLE
OF DC-DC CONVERTER
Start
Yes
J1 PIN9,10,11
Yes
J1 PIN 2,3,4
Yes
U14 pin 5 6 7 8
Yes
U22,U15 pin2
Yes
U20 pin2
N0
N0
N0
N0
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
Yes
U17 pin2
Yes
U21 pin2
Yes
U19 pin2
Yes
N0
N0
N0
N0
U18 pi2
END
The voltage is about +3.3V
The voltage is about +1.25V
The voltage is about +2.5V
The voltage is about +1.1V
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TROUBLE
OF DDC READING
Start
Yes
Analog DDC OK?
Yes
HDMIDDC OK?
Yes
N0
Support DDC1/2B
1. VGA cable ok?
2. Check signal (U31 to P5)
3. Check U31 Voltage
4. Is compliant protocol?
N0
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
Start
N0
Input signal good?
Yes
N0
input correct?
Yes
N0
J3 output correct?
Yes
N0
Check signal correct?
1. Check Audio source
2. Check the player of source
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
Yes
N0
U45(MT8292) Volt
Yes
N0
U45 output correct?
Yes
END
1. Check 12V&8292_9V of U45
1. Check DV33 of U45
1. Check feedback resistor and
capacitor.
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