Vizio L32HDTV10A User Manual

Service Manual

Model #: VIZIO L32HDTV10A

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 L32HDTV10A Service Manual

VINC Service Manual

VIZIO L32HDTV10A

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 L32HDTV10A 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 ,TV and DTV 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: 37 inch

Display Size: 37.02 inches (940.3mm) diagonal

Outline Dimension: 877.0/878.0 mm (H) x 516.8 mm (V) x 55.5 (D) mm (Typ.)

Pixel Pitch: 0.200mm x 0.600mm x RGB

Pixel Format: 1366 horiz. By 768 vert. Pixels RGB strip arrangement

Contrast ratio: 600(Typ)

Luminance, White: 500 cd/m

2 (Typ)

Display Operating Mode: normally Black

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

Color Depth : 8-bit, 16.7 M colors

Viewing Angle (CR>10) : Viewing angle free ( R/L 176(Typ.), U/D 176(Typ.))

Power Consumption : Total 125Watt (Typ.) (Logic=4.5W, Lamp=120W [IBL=6.0mA] )

2. OPTICAL CHARACTERISTICS

Viewing Angle by Contrast Ratio :

Left: 88°typ.

Right: 88°typ.

Top: 88°typ.

Bottom: 88°typ.

3. SIGNAL (Refer to the Timing Chart)

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

3.2 Input Signal :

3.2.1 RCA-type (Yellow) Composite Video Connector :

a. Signal Level Video (Y+C): Analog 1Vp-p/75

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

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

3.2.2 Four-Pin mini DIN S-Video Connector

a. Pin Assignment

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

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

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

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

3.2.3 F-Type TV RF connector

3.2.3.1 NTSC System:

a. Signal Level: Analog 1Vp-p typical(45dB~90dB)

b. System :NTSC

c. Frequency: 55~801MHz (NTSC)

3.2.3.2 ATSC System

a. IF-output level: 1Vp-p minimum

b. System: ATSC

c. Frequency: 57~863MHz(ATSC)

3.2.4 PC connector 15 pin male D-sub connector

a. Pin Assignment :

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b. Signal Level Video (R, G, B) : Analog 0.7Vp-p/75

Sync (H, V) : TTL level

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

d. Sync polarity Positive or Negative

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

V: support to 50~85Hz

Pixel Clock: support to 110MHz

3.2.5 HDMI Signal (Digital HD):

a. Pin Assignment

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b. Type: 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)

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3.2.6 Component signal (Analog HD1 and Analog HD2)

3.2.6.1 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 75

3.2.6.2 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 75

3.2.7 Audio Signal

a. Signal Level 1Vrms

b. Frequency Response 250Hz-20KHz

4.Input Connectors

RJ11, D-SUB15PIN ,mini jack(PC Audio in), HDMI CONNECT, RCAX2 (component),

RCAX3 (AUDIO in), RCAX3 (composite), RCAX3 (AUDIO in),F CONNECTx2,S-Video

5. POWER SUPPLY

Power Consumption: 220W MAX

Power OFF: to less than 3W MAX

6.Speaker

Output 6Ω/10W (max) X2

7. ENVIRONMENT

7-1. Operating Temperature: 5°C ~35°C (Ambient)

7-2. Relative Humidity: Ta= 35 °C, 10~90%RH (Non-condensing)

7-3. Altitude: 0~40,0000 feet (Non-Operating)

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8. DIMENSIONS (Physical dimension)

Width: 959.9mm.

Depth: 311.0mm

Height: 748.4mm

9. WEIGHT (Physical weight)

a. Net: 25.9kgs

b. Gross: 33.5kg

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.)

(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.

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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

CH ▲

CH ▼

VOL +

VOL -

MUTE / EXIT

MENU

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)

C. TV TUNER SETUP：

a. SOUND (SAP/MONO/STEREO)

b. TV/CABLE (TV/CABLE)

c. CHANNEL SEARCH (RUN)

d. SET CHANNEL

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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、DTV)

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)

B. COLOR TEMP：

a. COLOR TEMP. (User, 5000K, 6500K,9300K)

b. RED (0~255)

c. GREEN (0~255)

d. BLUE (0~255)

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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/ NORMAL)

d. RESET ALL SETTING

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)

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f. REVERB (OFF, CONCERT, LIVING ROOM, HALL, ARENA)

g. MUTE (ON/OFF)

h. SPEAKERS (ON/OFF)

i. AUDIO SOURCE(DIGITAL HD/DTV)

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/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 (NORMAL/WIDE/ZOOM)

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)

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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 (AV2、AV3、ANALOGHD1、ANALOG HD2、DIGITAL HD、

RGB、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 (NORMAL/WIDE/ZOOM/PANORAMIC)

d. RESET ALL SETTING

DTV Sources：

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)

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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.DTV OSD

a. DTV TUNER SETUP

1. TIME ZONE:

α. HAWALL

β. EASTTERN TIME

γ. INDIANA

δ. CENTRAL TIME

ε. MOUNTAIN TIME

ζ. ARIZONA

η. PACIFIC TIME

θ. ALASKA

2. AUTO SCAN

3. MANUAL SCAN PRESS<OK>

(1) ADD-ON MODE

(2) RANGE MODE

α. FORM CHANNEL(2~69)

β. TO CHANNEL(2~69)

4. CHANNEL SKIP PRESS<OK>

b. CLOSED CAPTION:

1. ANALOG COLOSED CAPTION

α.OFF

β.CC1

γ.CC2

δ.CC3

ε.CC4

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2. DIGITAL COLOSED CAPTION

α.OFF

β.SERVICE1

γ.SERVICE2

δ.SERVICE3

ε.SERVICE4.

ζ.SERVICE5

η.SERVICE6

3. DIGITAL CAPTION STYLE PRESS<OK>

(1) AS BROADCASTER

(2)CUSTOM

FONT SIZE

α.LARGE

β.SMALL

γ.MEDIUM

FONT COLOR

α.BLACK

β.WHITE

γ.GREEN

δ.BLUE

ε.RED

ζ.CYAN

η.YELLOW

θ.MAGENTA

FONT OPACITY

α.SOLID

β.TRANSLUCENT

γ.TRANSPARENT

BLACKGROUND COLOR

α.BLACK

β.WHITE

γ.GREEN

δ.BLUE

ε.RED

ζ.CYAN

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η.YELLOW

θ.MAGENTA

BLACKGROUND OPACITY

α.SOLID

β.TRANSLUCENT

γ.TRANSPARENT

WINDOW COLOR

α.BLACK

β.WHITE

γ.GREEN

δ.BLUE

ε.RED

ζ.CYAN

η.YELLOW

θ.MAGENTA

WINDOW OPACITY

α.SOLID

β.TRANSLUCENT

γ.TRANSPARENT

c.PARENTAL CONTROL

PASSWORD PRESS<OK>

1.0000

2.CHANNEL BLOCK PRESS<OK>

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、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)

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F. SPECIAL FEATURES：

a. LANGUAGE (ENGLISH/FRANCE/SPANISH)

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

c. WIDE FORMAT (NORMAL/WIDE)

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

Horizontal

Frequency

Vertical

Frequency

Horizontal

Polarity

Vertical

Polarity

Pixel

Rate

Remark: P: positive N: negative

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Chapter5 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)

Table 1.

1

11

5

106

15

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PC connector 15 pin male D-sub connector

a. Pin Assignment Refer to Table 1

b. Signal Level Video (R, G, B): Analog 0.7Vp-p/75

Sync (H, V): TTL level

Ω

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 CONNECT PIN ASSIGNMENT

PIN SIGNAL ASSIGNMENT PIN SIGNAL ASSIGNMENT

1 TMDS Data2+ 11 TMDS Clock Shield

2 TMDS Data2 Shield 12 TMDS Clock-

3 TMDS Data2- 13 CEC

4 TMDS Data1+ 14 Reserved (N.C on device)

5 TMDS Data1 Shield 15 SCL

6 TMDS Data1- 16 SDA

7 TMDS Data0+ 17 DDC/CEC Ground

8 TMDS Data0 Shield 18 +5V Power

9 TMDS Data0- 19 Hot Plug Detect

10 TMDS Clock+

Table 2.

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HDMI Signal (Digital HD):

a. Pin Assignment Refer to Table 2.

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)

Four-Pin mini DIN S-Video Connector

a. Pin Assignment

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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)

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

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F-Type TV RF connector

NTSC System:

a. Signal Level: Analog 1Vp-p typical(45dB~90dB)

b. System :NTSC

c. Frequency: 55~801MHz (NTSC)

ATSC System

a. IF-output level: 1Vp-p minimum

b. System: ATSC

c. Frequency: 57~863MHz(ATSC)

Component signal (Analog HD1 and Analog HD2)

Analog HD1

a. Frequency H: 15.734KHz V: 60Hz (NTSC-480i)

b. Signal level Y: 1Vp-p Pb: ±0.350Vp-p Pr: ±0.350Vp-p

c. Impedance 75Ω

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H: 31KHz V: 60Hz (NTSC-480p)

H: 45KHz V: 60Hz (NTSC-720p)

H: 33KHz V: 60Hz (NTSC-1080i)

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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

RCA-type (Yellow) Composite Video Connector(AV1,AV2,AV3)

a. Signal Level Video (Y+C): Analog 1Vp-p/75

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

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

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PHONE JACK AUDIO INPUT

:

a. Signal Level 1Vrms

b. Frequency Response 250Hz-20KHz

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Chapter 6 Block Diagram

The TV system block diagram is powered by power board that transforms AC source

of 100V~240V AC +/- 10% @ 50/60 HZ into DC 5V & 12V& 24Vsource. The main

board receives different types of video signal into the MTK8205 Ic. Afterward, the

MTK8205 Ic process the signals control the various functions of the monitor and

outputs control signal, video signal and power to the 37” WXGA panel to be

displayed.

The power send to the panel is first processed by the inverter.

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The function of the inverter is to step up the voltage supplied by the main board to the

power that is needed to light up the lamps in the panel. Simultaneously, the digital

video signals are processed in the panel and the outcome determines the brightness,

pixel on/off and the color displayed on the panel.

The analog video signals of S-video, YPbPr, TV, PC and A/V all video signals are

translated from analog signals into MTK8205 generates the vertical and horizontal

timing signals for display device.

The analog audio of s-video, YPbPr, TV, PC and A/V is transmitting to the WM8776

processed. The purpose is process the input audio signal to control volume, bass,

treble, surround, and balance. The HDMI video and audio is must transmitting to

sil9011 processed then TMDS signal to the MTK8205 generates the vertical and

horizontal timing signals for display device.

The DTV signal is processes to the tuner and output to MT5111 who handle ATSC

input to match MPEG-2 package, then transfer to MT5351. After passing through

decoder, the signal will be with the digital signal tri-dtate from HDMI transfer to digital

port of MT8205 . All functions are controllable by the main board. Plus, all functions in

the IC boards are programmable using I2C Bus.

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