Vizio L32 Service Manual

Service Manual

Model #: VIZIO L32

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 DI AGRAM 10-1

11.Spare Parts List 11-1

12. Complete Parts List (AUO PANEL) 12-1

13. Complete Parts List (SHARP PANEL) 13-1

Appendix

1. Main Board Circuit Diagram

2. Main Board PCB Layout

3. Assembly Explosion Drawing

Block Diagram

VIZIO L32 Service Manual

VINC Service Manual

VIZIO L32

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 L32 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. Smoothing function enables display of smooth texts and graphics even if image

withresolution lower than 1366x768 is magnified

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

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

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

sharpness), sound setting, PIP, TV channel program, aspect and gamma or reset

all setting.

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Chapter 2 Specification

1. LCD CHARACTERISTICS

Type: WXGA TFT LCD
Size: 31.5 inch
Display Size: 31.5 inches (80.039mm) diagonal
Outline Dimension: 780.0(H) x 450.0(V) x 51.0-(D) mm (Typ.)
Pixel Pitch: 0.51075mm x 0.51075mm
Pixel Format: 1366 horiz. By 768 vert. Pixels RGB strip arrangement
Contrast ratio: 800(Typ)
Luminance, White: 500 cd/m
Display Operating Mode: normally Black
Surface Treatment: Anti glare, low reflection coating; hard coating: 2H;
Haze: 23+/-5%

2 (Typ)

2. OPTICAL CHARACTERISTICS

Viewing Angle by Contrast Ratio °Ÿ 10
Left: 85°typ.
Right: 85°typ.
Top: 85°typ.
Bottom: 85°typ.

3. SIGNAL (Refer to the Timing Chart)

Sync Signal

1) Type: TMDS

2) Input Voltage Level: 90~240 Vac, 50/ 60 Hz

3) Input Impedance: 50£[/ Signal line
RJ11, D-SUB15PIN (MINI, 3rows), Headphone, HDMI, CONNECT, RCAX3 (component),

4. Input Connectors

RCAX2 (AUDIO in), RCAX3 (composite), RCAX2 (AUDIO in)

5. POWER SUPPLY

Power Consumption: 180W MAXPower OFF: to less than 3W MAX

6.Speaker

Output 8Ω/10W (max) X2

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7. ENVIRONMENT

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

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

3. Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating)

8. DIMENSIONS (Physical

dimension)

Width: 818.3mm.
Depth: 280.5mm
Height: 643.8mm

9. WEIGHT (Physical weight)

a. Net: 19.5kgs
b. Gross: 23.5kgs

Precaution

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

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. 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 polarizes 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.)

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

materials like chamois soaks with petroleum benzene. 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, 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. Sufficient suppression to the electromagnetic

interference shall be done by system manufacturers. Grounding and shielding methods

may be important to minimized the interference.

9-3. 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.

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Chapter 3 On Screen Display

Main unit button

Power

Input

MENU

CH ▲

CH ▼

VOL +

VOL -

MENU / EXIT

TV Source

A. PICTURE ADJUST：

a. PICTURE MODE (USER/ VIVID1 /VIVID2 / VIVID3)

b. Adjust the BACKLIGHT (0~100)

c. Adjust the BRIGHTNESS (0~100)

d. Adjust the CONTRAST (0~100)

e. Adjust the COLOR (saturation)(0~100)

f. Adjust the TINT (hue) (0~100)

g. Adjust the SHARPNESS (0~100)

h. CLOSED CAPTION (OFF/CC1/CC2/CC3/CC4/TT1/TT2/TT3/TT4)

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, LIVINGROOM, HALL, ARENA)

g. MUTE (ON/OFF)

h. SPEAKERS (ON/OFF)

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C. TV TUNER SETUP：

a. SOUND (SAP/MONO/STEREO)

b. TV/CABLE (TV/CABLE)

c. CHANNEL SEARCH (RUN)

d. SET CHANNEL

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)

c. SIZE (SMALL (20%)/MEDIUM (30%)/LARGE (40%))

d. POSITION (TOP LEFT/TOP CENTER/TOP RIGHT/MIDDLE LEFT/MIDDLE

RIGHT/BOTTOM LEFT/BOTTOM CENTER/BOTTOM RIGHT)

F. SPECIAL FEATURES：

a. LANGUAGE (ENGLISH/FRANCE/SPANISH)

b. SLEEP TIMER (OFF/30/60/90/120)

c. WIDE FORMAT (NORMAL/WIDE/ZOOM、PANORAMIC)

d. RESET ALL SETTING

PC Analog Mode

A. PICTURE ADJUST：

a. AUTO PICTURE (Run)

b. Adjust the BACKLIGHT (0~100)

c. Adjust the BRIGHTNESS (0~100)

d. Adjust the CONTRAST (0~100)

e. Adjust the V-POSITION (0~100)

f. Adjust the H-SIZE (0~100)

g. Adjust the H-POSITION (0~100)

h. Adjust the FINETUNE (0~100)

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B. COLOR TEMP：

a. COLOR TEMP. (User, 5000K, 6500K,

9300K)

b. RED (0~255)

c. GREEN (0~255)

d. BLUE (0~255)

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. SIZE (SMALL (20%)/MEDIUM (30%)/LARGE (40%))

d. POSITION (TOP LEFT/TOP CENTER/TOP RIGHT/MIDDLE LEFT/MIDDLE

RIGHT/BOTTOM LEFT/BOTTOM CENTER/BOTTOM RIGHT)

E. SPECIAL FEATURES：

a. LANGUAGE (ENGLISH/FRANCE/SPANISH)

b. SLEEP TIMER (OFF/30/60/90/120)

c. WIDE FORMAT (WIDE)

d. RESET ALL SETTING

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DIGITAL HD MODE

A. PICTURE：

a. PICTURE MODE (USER/ VIVID1 /VIVID2 / VIVID3)

b. Adjust the BACKLIGHT (0~100)

c. Adjust the BRIGHTNESS (0~100)

d. Adjust the CONTRAST (0~100)

e. Adjust the COLOR (saturation)(0~100)

f. Adjust the TINT (hue) (0~100)

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. 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. SOURCE (AV1、AV2、AV3、TV)

c. SIZE (SMALL (20%)/MEDIUM (30%)/LARGE (40%))

d. POSITION (TOP LEFT/TOPCENTER/TOP RIGHT/MIDDLELEFT/MIDDLE

RIGHT/BOTTOMLEFT/BOTTOM CENTER/BOTTOMRIGHT)

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E. SPECIAL FEATURES：

a. LANGUAGE (ENGLISH/FRANCE/SPANISH)

b. SLEEP TIMER (OFF/30/60/90/120)

c. WIDE FORMAT (NORMAL/WIDE/ZOOM、PANORAMIC)

d. RESET ALL SETTING

Video Sources：

AV1、AV2、AV3、ANALOG HD1、ANALOG HD2

A. PICTURE：

a. PICTURE MODE (USER/ VIVID1 /VIVID2 / VIVID3)

b. Adjust the BACKLIGHT (0~100)

c. Adjust the BRIGHTNESS (0~100)

d. Adjust the CONTRAST (0~100)

e. Adjust the COLOR (saturation)(0~100)

f. Adjust the TINT (hue) (0~100)

g. Adjust the SHARPNESS (0~100)

h. CLOSED CAPTION (OFF/CC1/CC2/CC3/CC4/TT1/TT2/TT3/TT4)

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. TV RATING

c. MOVIE RATING

d. ACCESS CODE EDIT

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D. PIP SETUP：

a. STYLE (OFF/PIP/POP)

b. SOURCE (AV2、AV3、ANALOGHD1、ANALOG HD2、DIGITAL HD、

RGB、TV)

c. SIZE (SMALL (20%)/MEDIUM (30%)/LARGE (40%))

d. POSITION (TOP LEFT/TOPCENTER/TOP RIGHT/MIDDLE

LEFT/MIDDLE RIGHT/BOTTOMLEFT/BOTTOM ENTER/BOTTOM RIGHT)

E. SPECIAL FEATURES：

a. LANGUAGE (ENGLISH/FRANCE/SPANISH)

b. SLEEP TIMER (OFF/30/60/90/120)

c. WIDE FORMAT (NORMAL/WIDE/ZOOM、PANORAMIC)

d. RESET ALL SETTING

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Chapter4 Factory preset timings

This timing chart is already preset for the TFT LCD analog & digital display monitors.

Resolution

Refresh

rate

640x480 60Hz 31.5kHz 59.94Hz N N 25.175

640x480 75Hz 37.5kHz 75.00Hz N N 31.500

800X600 60Hz 37.9kHz 60.317Hz P P 40.000

800x600 75Hz 46.9kHz 75.00Hz P P 49.500

800X600 85Hz 53.7kHz 85.06Hz P P 56.250

1024x768 60Hz 48.4kHz 60.01Hz N N 65.000

1024X768 75Hz 60.0kHz 75.03Hz P P 78.750

720x400 70Hz 31.46kHz 70.08Hz N P 28.320

1366X768 60 47.7KHZ 60.00HZ P N 85.500

Remark: P: positive N: negative

Horizontal

Frequency

Vertical

Frequency

Horizontal

Polarity

Vertical

Polarity

Pixel

Rate

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Chapter 5 Pin Assignment

The TFT LCD analog display monitors use a 15 Pin Mini D-Sub connector as video

input source.

Pin Description

1 Red

2 Green

3 Blue

4 Ground

5 Ground

6 R-Ground

7 G-Ground

8 B-Ground

9 +5V for DDC

10 Ground

11 No Connection

12 (SDA)

13 H-Sync (Composite

Sync)

14 V-Sync

15 (SCL)

1

5

106

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11

15

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HDMI CONNECT PIN ASSIGNMENT

PIN SIGNAL ASSIGNMENT

1 TMDS Data2+

2 TMDS Data2 Shield

3 TMDS Data2-

4 TMDS Data1+

5 TMDS Data1 Shield

6 TMDS Data1-

7 TMDS Data0+

8 TMDS Data0 Shield

9 TMDS Data0-

10 TMDS Clock+

11 TMDS Clock Shield

12 TMDS Clock-

13 CEC

14 Reserved (N.C on device)

15 SCL

16 SDA

17 DDC/CEC Ground

18 +5V Power

19 Hot Plug Detect

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Four-Pin mini DIN S-Video Connector

a. Pin Assignment

b.Signal Level Video (Y): Analog 0.1Vp-p/75Ω

Video (C): Analog 0.286p-p/75

Sync (H+V): 0.3V below Video (Y)

c.Frequency H: 15.734KHz V: 60Hz (NTSC)

Signal Level Video (Y) : Analog 0.1Vp-p/75Ω

Video (C) : Analog 0.286p-p/75Ω

Sync (H+V): 0.3V below Video (Y)

Frequency H: 15.734Khz V: 60HZ (NTSC)

F-Type TV RF connector

a. Signal Level 60dBµV typical

b. System NTSC

c. Frequency 55~801MHz (NTSC)

PC connector 15 pin male D-sub connector

a. Pin Assignment Refer to Section 2.3.10

b. Signal Level Video (R, G, B): Analog 0.7Vp-p/75Ω Sync (H, V): TTL level

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RGB Signal:

a. Sync Type TTL (Separate / Composite) or Sync. On Green

b. Sync polarity Positive or Negative

c. Video Amplitude RGB: 0.7Vp-p

d. Frequency H: support to 30K~70KHz

V: support to 50~85Hz

Pixel Clock: support to 110MHz

HDMI Signal (Digital HD):

a. Pin Assignment Refer to HDNI Pin Assignment

b. 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)

Component signal (Analog HD1 and Analog HD2)

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. Impedance 75Ω

Analog HD2

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. Impedance 75Ω

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Chapter6 Main Board I/o Connections

J7 CONNECTION (TOP→BOTTOM)

Pin Description

1 “Auto”

2 “Left”

3 “Right”

4 “Down”

5 “Gnd”

6 “Up”

7 “Menu”

8 “Source”

9 “Power”

10 “LED”

11 “IR”

12 “+5V”

J1 CONNECTION (TOP→BOTTOM)

Pin Description

1 “POWRSW”

2 “+12V”

3 “+12V”

4 “+12V”

5 “+12V”

6 “GND”

7 “GND”

8 “GND”

9 “+5V”

10 “+5V”

11 “+5V”

12 “PWM”

13 “BL ON/OFF”

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J3 CONNECTION (TOP→BOTTOM)

Pin Description Pin Description

1 “+3.3V” 16 “HPDET”

2 “ORO2” 17 “GND”

3 “ORO1” 18 “NC”

4 “ORO0” 19 “NC”

5 “FDAT” 20 “AV3 IN”

6 “FCMO” 21 “AV3 GND”

7 “GND” 22 “AV3L”

8 “GND” 23 “GND”

9 “FCLK” 24 “AV3R”

10 “GND” 25 “GND”

11 “NC” 26 “S1Y IN”

12 “NC” 27 “S1Y GND”

13 “GND” 28 “S1C IN”

14 “HPR” 29 “S1C GND”

15 “HPL” 30 “SVDET2#”

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Chapter 7 Theory of Circuit Operation

The operation of D-SUB 15pin route

The D-SUB 15pin is input analog signal to the MTK8205 transfer A/D converter then

generates the vertical and horizontal timing signals for display device.

The operation of HDMII CON route

The HDMI CON is input digital signal the signal is process to the sil9011. Then transfer to the

MTK8205, the MTK8205 generates the vertical and horizontal timing signals for display

device.

The operation of HDTV & Component route

HDTV & Component signal is input to switch IDTQS3VH257 (Select Component1 or 2). Then

transfer to the MTK8205 the MTK8205 generates the vertical and horizontal timing signals for

display device.

The operation of Video 1,2,3 & S-Video route

The Video 1,2,3 and S-Video signal is transmission signal to main board MM1492 (Switch)

and output to MTK8205 the MTK8205 generates the vertical and horizontal timing signals for

display device.

The operation of TV route

TV signal is processes to the tuner and output to MM1492 (switch) then transfer to MTK8205

the MTK8205 generates the vertical and horizontal timing signals for display device. Audio is

processes to the tuner output to SIF circuit and output to MTK8205.Then MTK8205 process to

wm8776 and output to TDA8946J transfer to speaker

The operation of keypad

There are 8 keys to control and select the function of L32 and also has one LED to indicate

the status of operation. They are “Power, Mute/Exit, OSD, ▼▲, + -, Input”.

1. The power key through POW and GND to control MTK8205, MTK8205 will receive a

low signal to turn on or off system while press the power key.

2. The other key the same as power key

3. The LED is constructed with two separate LED which color is blue and orange. The

MTK8205 direct control the LED’s when MTK8205 (OGO5) is low the LED is orange

(Close power) when MTK8205 (OGO5) is high the LED is blue (Open power).

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MT8205 Application

MT8205 is a highly integrated single chip for LCD TV supporting video input and output format

up to HDTV. It includes 3D comb filter TV Decoder to retrieve the best image from popular

composite signals. On-chip advanced motion adaptive de-interlacer converts accordingly the

interlace video into progressive one with overlay of a 2D Graphic processor. Optional 2nd

HDTV or SDTV inputs allows user to see multi-programs on same screen. Flexible scalar

provides wide adoption to various LCD panel for different video sources. Its on-chip audio

processor decodes analog signals from Tuner with lip sync control, delivering high quality

post-processed sound effect to customers. On-chip microprocessor reduces the system BOM

and shortens the schedule of UI design by high level C program. MT8205 is a cost-effective

and high performance HDTV-ready solution to TV manufactures.

BOLOCK DIAGRAM

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1. Video input

a. Input Multiplexing

1.component X2

2.composite X3

3.s-videoX1

4.HDMI X1

5.VGA X1

6.RF X1

b. Input formats:

1.support HDTV 480i/480p/720p/1080p

2.support Y/C signal 1VP-P/75Ω

3.support Y/C signal 1VP-P/75Ω

4.support 480i/408p/720p/1080i/1080p

5.support VGA input up to 1366x168@60HZ

6.support NTSC system Frequency 55~801MHZ

2. TV Decoder

For pip/pop:

Dual identical TVD on chip

3D-comb for both path

Dual VBI decoders for the application of V-chip

3. Support Formats:

Support NTSC, NTSC-4.43

Automatic Luma / Chroma gain control

Automatic TV standard detection

NTSC Motion Adaptive 3D comb filter

Motion adaptive 3D Noise Reduction

VBI decoder for closed-caption/XDS/Teletext/WSS/VPS

Macro vision detection

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BOLOCK DIAGRAM

4. 2D-Graphic/OSD processor

Two OSD planes.

Support alpha blending among these two planes and video

Support text/bitmap decoder

Support line/rectangle/gradient fill

Support bitblt

Support color key function

Support clip mask

65535/256/16/4/2-color bitmap format OSD

Automatic vertical scrolling of OSD image

Support OSD mirror and upside down

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5. Microprocessor interface

When power is supplied and power key is pressed then the rest circuit lets Reset to low

state that will reset the MTK8205 to initial state. After that the Reset will transits to high state

and the MTK8205 start to work that microprocessor executes the programs and configures

the internal registers. The execution speed of CPU is 133 MHz.

a. The I/O ports are configured as follows：

Pin name Function Type Description

AF26 VGASCL Input / Output

AE26 VGASDA Input / Output

AB23 HDDCSCL Input / Output

AB24 HDDCSDA Input / Output

AD22 SCL Input / Output

AV22 SDA Input / Output

OBO0 SOURCE Input Key detection

OBO1 MENU Input Key detection

OBO2 UP Input Key detection

OBO3 DOWN Input Key detection

OBO4 RIGHT Input Key detection

OBO5 LEFT Input Key detection

OBO6 AUTO Input Key detection

OBO7 POWER Input Key detection

OGO5 LED Output

AF24 IR Input / Output

AE23 GPIO Output Power on of TV board and panel

AD23 PWM0 Output Backlight Adjustmance

AC23 PWM1 Output Select mute

AD20 UP1_5 Output RCA out mute

AE20 UP1_4 Input S-video Detect

AF20 UP1_3 Output HDMI SCDT

AE19` UP1_2 Output YCBCRSEL

AE21 UP3_0 Output Backlight ON/OFF

AD21 UP3_1 Output HDMI CAB

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b. PIP/POP HARDWARE LIMITION:

6. Video processor

a. Color management

Flesh tone and multiple-color enhancement

Gamma/anti-Gamma correction

Color Transient Improvement (CTI)

Saturation/hue adjustment

Contrast/Brightness/Sharpness Management

Sharpness and DLTI/DCTI

Brightness and contrast adjustment

Black level extender

White peak level limiter

Adaptive Luma/Chroma Management

b. De-interlacing

Automatic detect film or video source

3:2/2:2 pull down source detection

Advanced Motion adaptive de-interlacing

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