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Service Manual

Model #: VIZIO L37
V, Inc 320A Kalmus Drive Costa Mesa, CA 92626 TEL : +714-668-0588 FAX :+714-668-9099

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Table of Contents
CONTENTS Sections 1. Features 2. Specifications 3. On Screen Display 4. Factory Preset Timings 5. Pin Assignment 6. Main Board I/O Connections 7. Theory of Circuit Operation 8. Waveforms 9. Trouble Shooting 10. Block Diagram 11. Spare parts list 12. Complete Parts List 1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 9-1 10-1 11-1 12-1 PAGE

Appendix 1. Main Board Circuit Diagram 2. Main Board PCB Layout 3. Assembly Explosion Drawing Block Diagram

VIZIO L37 Service Manual

VINC
COPYRIGHT © 2000 V, INC. ALL RIGHTS RESERVED.

Service Manual
VIZIO L37

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 L37 Service Manual

Chapter 1
1. 2. 3. 4.

Features

Built in TV channel selector for TV viewing Simulatnueous display of PC and TV images Connectable to PC's analog RGB port 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 Picture In Picture (PIP) funtion to show TV or VCR images

7.

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/m2 (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 6/10W (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
Main unit button
Power Input CH CH VOL + VOL MUTE / EXIT MENU

On Screen Display

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 (AV1AV2AV3ANALOGHD1ANALOG HD2DIGITAL HD RGBDTV) 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 (AV1AV2AV3TV) 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 (AV1AV2AV3TV) 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
AV1AV2AV3ANALOG HD1ANALOG 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 (AV2AV3ANALOGHD1ANALOG HD2DIGITAL HD RGBTV) 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: . HAWALL . EASTTERN TIME . INDIANA . CENTRAL TIME . MOUNTAIN TIME . ARIZONA . PACIFIC TIME . ALASKA 2. AUTO SCAN 3. MANUAL SCAN PRESS (1) ADD-ON MODE (2) RANGE MODE . FORM CHANNEL(2~69) . TO CHANNEL(2~69) 4. CHANNEL SKIP PRESS b. CLOSED CAPTION: 1. ANALOG COLOSED CAPTION .OFF .CC1 .CC2 .CC3 .CC4
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2. DIGITAL COLOSED CAPTION .OFF .SERVICE1 .SERVICE2 .SERVICE3 .SERVICE4. .SERVICE5 .SERVICE6 3. DIGITAL CAPTION STYLE PRESS (1) AS BROADCASTER (2)CUSTOM FONT SIZE .LARGE .SMALL .MEDIUM FONT COLOR .BLACK .WHITE .GREEN .BLUE .RED .CYAN .YELLOW .MAGENTA FONT OPACITY .SOLID .TRANSLUCENT .TRANSPARENT BLACKGROUND COLOR .BLACK .WHITE .GREEN .BLUE .RED .CYAN
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.YELLOW .MAGENTA BLACKGROUND OPACITY .SOLID .TRANSLUCENT .TRANSPARENT WINDOW COLOR .BLACK .WHITE .GREEN .BLUE .RED .CYAN .YELLOW .MAGENTA WINDOW OPACITY .SOLID .TRANSLUCENT .TRANSPARENT c.PARENTAL CONTROL PASSWORD PRESS 1.0000 2.CHANNEL BLOCK PRESS 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 (AV1AV2AV3TV) 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.
Refresh rate 60Hz 75Hz 60Hz 75Hz 85Hz 60Hz 75Hz 70Hz 60 Horizontal Frequency 31.5kHz 37.5kHz 37.9kHz 46.9kHz 53.7kHz 48.4kHz 60.0kHz 31.46kHz 47.7KHZ Vertical Frequency 59.94Hz 75.00Hz 60.317Hz 75.00Hz 85.06Hz 60.01Hz 75.03Hz 70.08Hz 60.00HZ Horizontal Polarity N N P P P N P N P Vertical Polarity N N P P P N P P N Pixel Rate 25.175 31.500 40.000 49.500 56.250 65.000 78.750 28.320 85.500

Resolution 640x480 640x480 800X600 800x600 800X600 1024x768 1024X768 720x400 1366X768 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 1 2 3 4 5 6 7 8 9 10 11 12 13 Red Green Blue Ground Ground R-Ground G-Ground B-Ground +5V for DDC Ground No Connection (SDA) H-Sync (Composite Sync) 14 15 V-Sync (SCL) Description

Table 1.

1 6 11

5 10 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

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 1 2 3 4 5 6 7 8 9 10 SIGNAL ASSIGNMENT TMDS Data2+ TMDS Data2 Shield TMDS Data2TMDS Data1+ TMDS Data1 Shield TMDS Data1TMDS Data0+ TMDS Data0 Shield TMDS Data0TMDS Clock+ Table 2. PIN 11 12 13 14 15 16 17 18 19 SIGNAL ASSIGNMENT TMDS Clock Shield TMDS ClockCEC Reserved (N.C on device) SCL SDA DDC/CEC Ground +5V Power Hot Plug Detect

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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/75 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) 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

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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 75 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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Main Board Block Diagram
Video Signal RJ11 P11 24C02 U17 HDMI CON. P1 24C02 U18
D_SUB 15PIN P3
IR CONN. KEY BOARD CONN.

Audio Signal Communicate Signal Control Pin Sil9011 U16 FFC 50PIN CON. For DTV Signal
+12V +5V +3.3V +2.5V

DDR SDRAM U11,U12

FLASH MEMORY U10

DC/DC

DC

12V

IN

POWER

CONN.

Y Cb Cr

I2C IDTQS3VH257 U21 MT8205 U9 SEL 37' LCD Panel

COMPONENT1&2 VIDEO P8
Y Cb Cr

R L

COMPONENT1&2 Audio P10
R L

I2C SY

V R L

V R L

Y+C L/R Y+C L/R

SC CVBS1 CVBS2 MM1492 DVI Audio Input P7 Audio Processor WM8776 U20 PC Audio Input P5 OPA U28 RCA OUT P9 HEAD PHONE J3

A/V RCA P2 Y C DETECT S-VIDEO J6 Y+C

AUO1L_SWO U20 AUO1R_SWO AUO2L_SWO

V R L

AUO2R_SWO

AV3 RCA J4 HEAD PHONE DETECT

I2C TV CVBS SIF

PWM1 TDA8946 UA1

R+ RL+ L-

PHILIPS FQ1236 TU1

Title

Rev <RevCode> Sheet 1 of 1 Size Document Number Custom <Doc> Date: Monday, November 14, 2005 CONFIDENTIAL DO NOT COPY Page 6-3 File No. SG-0176 Video Board Block Diagram Video Signal Audio Signal Communicate Signal Control Pin I2C Narrow_IF_OP1&OP2 IF AGC PORT SAW FILTER U7 AGC Amplifiers U8 I2C Demodulator MT5111 U9 PHILIPS TD1336 U6 DDR SDRAM U12,U13 I2C DTV Backend Decoder MT5351 U10 IDTQS3VH257 U18 FCC 50PIN CON. J1 AUD_CTRL For Main Board DV33 VOLTAGE CONTROL CRYSTAL OSCILLATOR X1 Flash Memory U15 Title <Title> Size B Date: Document Number <Doc> Monday, November 14, 2005 Sheet 1 of 1 Rev <RevCode> CONFIDENTIAL DO NOT COPY Page 6-4 File No. SG-0176 Chapter7 Main Board I/o Connections J7 CONNECTION (TOPBOTTOM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 Description "Auto" "Left" "Right" "Down" "Gnd" "Up" "Menu" "Source" "Power" "LED" "IR" "+5V" J1 CONNECTION (TOPBOTTOM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 CONFIDENTIAL DO NOT COPY Description "POWRSW" "+12V" "+12V" "+12V" "GND" "GND" "GND" "GND" "+5V" "+5V" "+5V" "PWM" "BL ON/OFF" Page 7-1 File No. SG-0176 J3 CONNECTION (TOPBOTTOM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Description "+3.3V" "GND" "G/Y" "B/U" "R/V" "LMAIN1" "RMAIN1" "+5.0V" "GND" "8302IR" "8302NET1" "8302NET2" "8302RXD" "8302TXD" "GNDV" Pin 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Description "HPR" "HPL" "GNDV" "HPDET#" "AV3_IN" "AV3_GND" "AV3L" "AV3L GND" "AV3R" "AV3R GND" "S1Y_IN" "S1Y_GND" "S1C_IN" "S1C_GND" "SVDET2#" CONFIDENTIAL DO NOT COPY Page 7-2 File No. SG-0176 J2 CONNECTION (TOPBOTTOM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Description "GND" "I2C_SW" "OREQUEST#" "OREADY#" "ORESET#" "GND" "VOPCLK" "VODE" "VOVSYNC" "VOHSYNC" "GND" "VOR7" "VOR6" "VOR5" "VOR4" "GND" "VOR3" "VOR2" "VOR1" "VOR0" "GND" "VOG7" "VOG6" "VOG5" "VOG4" Pin 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Description "GND" "VOG3" "VOG2" "VOG1" "VOG0" "GND" "VOB7" "VOB6" "VOB5" "VOB4" "GND" "VOB3" "VOB2" "VOB1" "VOB0" "GND" "AO1SDATA0" "AO1LRCK" "AO1BCK" "AO1MCLK" "GND" "U2RX" "U2TX" "U0RX" "U0TX" CONFIDENTIAL DO NOT COPY Page 7-3 File No. SG-0176 J8 CONNECTION (TOPBOTTOM) Pin 1 2 3 4 5 Description "+5V" "GND" "GND" "+12V" "+12V" CONFIDENTIAL DO NOT COPY Page 7-4 File No. SG-0176 Chapter 8 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 DTV route 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 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". CONFIDENTIAL DO NOT COPY Page 8-1 File No. SG-0176 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). 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. CONFIDENTIAL DO NOT COPY Page 8-2 File No. SG-0176 BOLOCK DIAGRAM 1. Video input a. Input Multiplexing 1.component X2 2.composite X3 3.s-videoX1 4.HDMI X1 5.VGA X1 6.RF X2 CONFIDENTIAL DO NOT COPY Page 8-3 File No. SG-0176 b. Input formats: 1.support HDTV 480i/480p/720p/1080p 2.support Y/C signal 1VP-P/75 3.support Y/C signal 1VP-P/75 4.support 480i/408p/720p/1080i/1080p 5.support VGA input up to 1366x168@60HZ 6.support NTSC system Frequency 55~801MHZ 7. support ATSC system Frequency 57~863MHZ 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 Support ATSC 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 CONFIDENTIAL DO NOT COPY Page 8-4 File No. SG-0176 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 CONFIDENTIAL DO NOT COPY Page 8-5 File No. SG-0176 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 AF26 AE26 AB23 AB24 AD22 AC22 OBO0 OBO1 OBO2 OBO3 OBO4 OBO5 OBO6 OBO7 OGO5 AF24 AE23 AD23 AC23 AF6 AE20 AF20 AE19` AE21 AD21 Function VGASCL VGASDA READY# SCL SDA SOURCE MENU UP DOWN RIGHT LEFT AUTO POWER LED IR GPIO PWM0 PWM1 ORO6 UP1_4 UP1_3 UP1_2 UP3_0 UP3_1 Type Input / Output Input / Output Input / Output Input / Output Input / Output Input Input Input Input Input Input Input Input Output Input / Output Output Output Output Output Input Output Output Output Output Power on of TV board and panel Key detection Key detection Key detection Key detection Key detection Key detection Key detection Key detection Description REQUEST# Input / Output Backlight Adjustmance Select mute RCA out mute S-video Detect HDMI SCDT YCBCRSEL Backlight ON/OFF HDMI CAB CONFIDENTIAL DO NOT COPY Page 8-6 File No. SG-0176 b. PIP/POP HARDWARE LIMITION: Secondary Window Source Primary Window Source ATSC Tuner NTSC Tuner A/V1 A/V2 A/V3 (Side) Analog HD1 (480i~1080i) Digital HD1 (HDMI) RGB A B C D E F X A X B X C D E F X G H X X I X X X X X X X X X X X X X X X X X X X X Analog HD2 (480i~1080i) G X H X I X Input Matrix for Windowing Functionality 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 CONFIDENTIAL DO NOT COPY Page 8-7 File No. SG-0176 c. Scaling Arbitrary ratio vertical/horizontal scaling of video, from1/32X to 32X Advanced linear and non-linear Panorama scaling Programmable Zoom viewer Picture in picture (PIP) Picture in picture d. Display 12/10 10/8 8/6 Dithering processing for LCD display 10bit gamma correction Support Alpha blending for Video and two OSD panel Frame rate conversion 7. DRAM Usage 8205,2pcs of 8X16 DDR166 is necessary Here is a comparison chart between (2XDDR)and(1XDDR) MTK8205 8MX16 DDRAM test report CONFIDENTIAL DO NOT COPY Page 8-8 File No. SG-0176 8. Flash Usage Flash is used to store FW code, fonts, bitmaps, and big tables for VGA, Video, and Gamma 2Mbyte is recommended to build a general TV model MTK8205 Flash ROM support test report CONFIDENTIAL DO NOT COPY Page 8-9 File No. SG-0176 DDR SDRAM (M13S128168A-6T) Application Pin description CONFIDENTIAL DO NOT COPY Page 8-10 File No. SG-0176 Command Truth Table 1. Power-Up and Initialization Sequence The following sequence is required for POWER UP and Initialization. 1. Apply power and attempt to maintain CKE at a low state (all other inputs may be undefined.) - Apply VDD before or at the same time as VDDQ. - Apply VDDQ before or at the same time as VTT & VREF). 2. Start clock and maintain stable condition for a minimum of 200us. 3. The minimum of 200us after stable power and clock (CLK, CLK), apply NOP & take CKE high. 4. Issue precharge commands for all banks of the device. 5. Issue EMRS to enable DLL. (To issue "DLL Enable" command, provide "Low" to A0, "High" to BA0 and "Low" to all of the rest address pins, A1~A11 and BA1) CONFIDENTIAL DO NOT COPY Page 8-11 File No. SG-0176 6. Issue a mode register set command for "DLL reset". The additional 200 cycles of clock input is required to lock the DLL.(To issue DLL reset command, provide "High" to A8 and "Low" to BA0) 7. Issue precharge commands for all banks of the device. 8. Issue 2 or more auto-refresh commands. 9. Issue a mode register set command with low to A8 to initialize device operation. 2. Mode Register Set (MRS) The mode register stores the data for controlling the various operating modes of DDR SDRAM. It programs CAS latency, addressing mode, burst length, test mode, DLL reset and various vendor specific options to make DDR SDRAM useful for variety of different applications. The default value of the register is not defined, therefore the mode register must be written after EMRS setting for proper DDR SDRAM operation. The mode register is written by asserting low on CS , RAS , CAS , WE and BA0 (The DDR SDRAM should be in all bank recharge with CKE already high prior to writing into the mode register). The state of address pins A0~A11 in the same cycle as CS , RAS , CAS , WE and BA0 going low is written in the mode register. Two clock cycles are requested to complete the write operation in the mode register. The mode register contents can be changed using the same command and clock cycle requirements during operation as long as all banks are in the idle state. The mode register is divided into various fields depending on functionality. The burst length uses A0~A2, addressing mode uses A3, CAS latency (read latency from column address) uses A4~A6. A7 is used for test mode. A8 is used for DLL reset. A7 must be set to low for normal MRS operation. Refer to the table for specific codes for various burst length, addressing modes and CAS latencies. CONFIDENTIAL DO NOT COPY Page 8-12 File No. SG-0176 3. Precharge The precharge command is used to precharge or close a bank that has activated. The precharge command is issued when CS, RAS and WE are low and CAS is high at the rising edge of the clock. The precharge command can be used to precharge each bank respectively or all banks simultaneously. The bank select addresses (BA0, BA1) are used to define which bank is precharged when the command is initiated. For write cycle, tWR(min.) must be satisfied until the precharge command can be issued. After tRP from the precharge, an active command to the same bank can be initiated. Burst Selection for Precharge by Bank address bits A10/AP BA1 BA0 Precharge Bank A Only Bank B Only Bank C Only Bank D Only 0 0 0 0 1 0 0 1 1 X 0 1 0 1 X All Banks CONFIDENTIAL DO NOT COPY Page 8-13 File No. SG-0176 4. Row Active The Bank Activation command is issued by holding CAS and WE high with CS and RAS low at the rising edge of the clock (CLK). The DDR SDRAM has four independent banks; so two Bank Select addresses (BA0, BA1) are required. The Bank Activation command to the first read or write command must meet or exceed the minimum of RAS to CAS delay time (tRCD min). Once a bank has been activated, it must be precharged before another Bank Activation command can be applied to the same bank. The minimum time interval between interleaved Bank Activation command (Bank A to Bank B and vice versa) is the Bank-to-Bank delay time (tRRD min). 5. Read Bank This command is used after the row activates command to initiate the burst read of data. The read command is initiated by activating CS, CAS , and deasserting WE at the same clock sampling (rising) edge as described in the command truth table. The length of the burst and the CAS latency time will be determined by the values programmed during the MRS command. 6. Write Bank This command is used after the row activates command to initiate the burst write of data. The write command is initiated by activating CS, CAS, and WE at the same clock sampling (rising) edge as describe in the command truth table. The length of the burst will be determined by the values programmed during the MRS command. CONFIDENTIAL DO NOT COPY Page 8-14 File No. SG-0176 7. Burst Read Operation Burst Read operation in DDR SDRAM is in the same manner as the current SDRAM such that the Burst read command is issued by asserting CS and CAS low while holding RAS and WE high at the rising edge of the clock (CLK) after tRCD from the bank activation. The address inputs determine the starting address for the Burst, The Mode Register sets type of burst. (Sequential or interleave) and burst length (2, 4, 8). The first output data is available after the CAS Latency from the READ command, and the consecutive data are presented on the falling and rising edge of Data Strobe (DQS) adopted by DDR SDRAM until the burst length is completed. 8. Burst Write Operation The Burst Write command is issued by having CS , CAS and WE low while holding RAS high at the rising edge of the clock (CLK). The address inputs determine the starting column address. There is no write latency relative to DQS required for burst write cycle. The first data of a burst write cycle must be applied on the DQ pins tDS (Data-in setup time) prior to data strobe edge enabled after tDQSS from the rising edge of the clock (CLK) that the write command is issued. The remaining data inputs must be supplied on each subsequent falling and rising edge of Data Strobe until the burst length is completed. When the burst has been finished, any additional data supplied to the DQ pins will be ignored. CONFIDENTIAL DO NOT COPY Page 8-15 File No. SG-0176 MX29LV160BTTC (Flash) Application The MX29LV800T/B & MX29LV800AT/AB is a 8-mega bit Flash memory organized as 1M bytes of 8 bits or 512K words of 16 bits. MXIC's Flash memories offer the most cost-effective and reliable read/write non-volatile random access memory. The MX29LV800T/B & MX29LV800AT/AB is packaged in 44-pin SOP, 48-pin TSOP, and 48-ball CSP. It is designed to be reprogrammed and erased in system or in standard EPROM programmers. CONFIDENTIAL DO NOT COPY Page 8-16 File No. SG-0176 BLOCK DIAGRAM 1. COMMAND DEFINITIONS Device operations are selected by writing specific address and data sequences into the command register. Writing incorrect address and data values or writing them in the improper sequence will reset the device to the read mode. Table 5 defines the valid register command sequences. Note that the Erase Suspend (B0H) and Erase Resume (30H) commands are valid only while the Sector Erase operation is in progress. CONFIDENTIAL DO NOT COPY Page 8-17 File No. SG-0176 2. WRITE COMMANDS/COMMAND SEQUENCES To program data to the device or erase sectors of memory, the system must drive WE and CE to VIL, and OE to VIH. The device features an Unlock Bypass mode to facilitate faster programming. Once the device enters the Unlock Bypass mode, only two write cycles are required to program a byte, instead of four. The "byte Program Command Sequence" section has details on programming data to the device using both standard and Unlock Bypass command sequences. An erase operation can erase one sector, multiple sectors, or the entire device. Table indicates the address space that each sector occupies. A "sector address" consists of the address bits required to uniquely select a sector. The "Writing specific address and data commands or sequences into the command register initiates device operations. Figure 1 defines the valid register command sequences. Writing incorrect address and data values or writing them in the improper sequence resets the device to reading array data. Section has details on erasing a sector or the entire chip, or suspending/resuming the erase operation. CONFIDENTIAL DO NOT COPY Page 8-18 File No. SG-0176 After the system writes the auto select command sequence, the device enters the auto select mode. The system can then read auto select codes from the internal register (which is separate from the memory array) on Q7-Q0. Standard read cycle timings apply in this mode. Refer to the Auto select Mode and Auto select Command Sequence section for more information. ICC2 in the DC Characteristics table represents the active current specification for the write mode. The "AC Characteristics" section contains timing specification table and timing diagrams for write operations. Figure 1 3. READ/RESET COMMAND The read or reset operation is initiated by writing the read/reset command sequence into the command register. Microprocessor read cycles retrieve array data. The device remains enabled for reads until the command register contents are altered. If program-fail or erase-fail happen, the write of F0H will reset the device to abort the operation. A valid command must then be written to place the device in the desired state. CONFIDENTIAL DO NOT COPY Page 8-19 File No. SG-0176 4. READING ARRAY DATA The device is automatically set to reading array data after device power-up. No commands are required to retrieve data. The device is also ready to read array data after completing an Automatic Program or Automatic Erase algorithm. After the device accepts an Erase Suspend command, the device enters the Erase Suspend mode. The system can read array data using the standard read timings, except that if it reads at an address within erase suspended sectors, the device outputs status data. After completing a programming operation in the Erase Suspend mode, the system may once again read array data with the same exception. See Erase Suspend/Erase Resume Commands" for more information on this mode. The system must issue the reset command to re-enable the device for reading array data if Q5 goes high, or while in the auto select mode. See the "Reset Command" section, next. 5. RESET COMMAND Writing the reset command to the device resets the device to reading array data. Addresses bits are don't care for this command. The reset command may be written between the sequence cycles in an erase command sequence before erasing begins. This resets the device to reading array data. Once erasure begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in a program command sequence before programming begins. This resets the device to reading array data (also applies to programming in Erase Suspend mode). Once programming begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in an SILICON ID READ command sequence. Once in the SILICON ID READ mode, the reset command must be written to return to reading array data (also applies to SILICON ID READ during Erase Suspend). If Q5 goes high during a program or erase operation, writing the reset command returns the device to reading array data (also applies during Erase Suspend). CONFIDENTIAL DO NOT COPY Page 8-20 File No. SG-0176 MT5111 Application: MT5111 Functional Block Diagram MT5111 is fully integrated single-chip 8-VSB , designed specifically for the digital terrestrial. HDTV receivers . The chip is fully compliant with the ATSC A/53 digital TV standard. MT5111 includes a 10-bit A/D converter , 8-VSB demodulator , TCM(Trellis-Coded Modulation). Decoder . and Reed-Solomon Forward Error Correction decoder . Moreover , an internal controller handles the acquisition and tracking to ensure the best receiving performance . The internal controller communicates with the external host controller via the I2C-compatible interface , and also provides direct control to the RF tuner via the second I2C-compatible interface. MT5111 accepts either the direct IF signals centered at 44MHZ or 43.75MHZ , or the low IF signal Centered at 5.38MHZ . The center frequency of the incoming IF signal can also be programmed to other frequencies for Various applications . An On-chip programmable gain-controlled amplifier is designed to provide sufficient signal amplitude when the received RF signal is weak . The If signal is first sampled by a 10-bit A/D converter . Afterward , the digitized samples are further processed for adjacent channel interference rejection. MT5111 measures the power level of the digitized sequence , and feeds the control voltages back to the RF tuner and the IF amplifier respectively . The control voltages are converted to analog signals through the on-chip 1-bit sigma-delta D/A converters plus the off-chip R-C low-pass filters . The automatic gain control keeps the received power level at a desired level and maximizes the received SNR . CONFIDENTIAL DO NOT COPY Page 8-21 File No. SG-0176 The carrier frequency offset and symbol timing offset are both estimated and compensated by a fully digital synchronizer . The synchronizer also controls the rate conversion in the digital re-sampling device by estimating the sampling frequency offset . All synchronization in MT5111 are integrated in digital circuits , no external VCXO is required. The equalizer is adopted to cancel the effect of multi-path fading channel during signal propagation in the air . The equalizer is not only capable of acquiring correct coefficients combination by specified adaptive algorithms , but also programmable to different configurations for various channel conditions. The following FEC decoder corrects most of the errors by the concatenation of TCM and Reed-Solomon decoders . The on-chip error rate estimator can simultaneously monitor the receiving qualities at the three stages: equalizer output , TCM decoder , and transport stream packets . The chip finally outputs the decoded MPEG-2 packets in either the serial or parallel transport stream format. In addition to the demodulation of HDTV signal , MT5111 also provides the capability to remove the NTSC co-channel interference.To achieve the best reception condition , an antenna interface compliant with EIA/CEA-909 is designed to control the antenna parameters. MT5111 is designed with efficient mechanisms of power saving . When configured to enter the sleep mode by the system host , it can immediately turn off almost all embedded hardware except the on-chip controller to reduce the power consumption . Resuming form sleep mode is also triggered by the system host . Upon returning to the operation mode , the chip will try to re-acquire the DTV signal automatically. MT5111 Key Features: 1 . ATSC compliant 8-VSB demodulator 2 . Accepts dirtect IF (44 MHZ or 43.75 MHZ) and low IF (5.38 MHZ) 3 . Differential IF input with programmable input signal level : 0.5 Vpp to 2 Vpp 4 . NTSC interference rejection capability 5 . Compensate echo up to 5 to +47 us range 6 . On-chip 10-bit ADC for HDTV demodulator 7 . On-chip programmable gain amplifier CONFIDENTIAL DO NOT COPY Page 8-22 File No. SG-0176 8 . 25MHZ crystal for clock generation 9 . Full-digital timing recovery , no VCXO is required 10. Full-digital frequency offset recovery with wide acquisition range 1MHZ~+1MHZ 11. Dual digital AGC control for IF and RF respectively 12. MPEG-2 transport stream output in parallel or serial format 13. On-chip error rate estimators for TS packets , TCM decoder , and equalizer 14. EIA/CEA-909 antenna interface 15. Controlled by I2C interface 16. Supports sleep mode to save power consumption 17. Core power supply : 1.8V , peripheral power supply : 3.3V 18.100-LQFP package MT5351 Application : MediaTek MT5351 is a DTV Backend Decoder SOC which support flexible transport demux , HD MPEG-2 video decoder , JPEG decoder , MPEG1,2,MP3,AC3 audio decoder , HDTV encoder . The MT5351 enables consumer electronics manufactures to build high quality , feature-rich DTV , STB or other home entertainment audio/video device. World-Leading Technology : HW support worldwide major broadcast network and CA standards , include ATSC , DVB , OpenCable , DirectTV , MHP. Rich Feature for high value product : To enrich the feature of DTV , the MT5351 support 1394-5C component to external DVHS . Dual display , PIP/POP and quad pictures provide user a whole new viewing experience. Credible Audio/Video Quality : The MT5351 use advanced motion-adaptive de-interlace algorithm to achieve the best movie/video playback , The embedded 4X over-sample video DAC could generate very fine display quality . Also , the audio 3D surround and equalizer provide professional entertainment. CONFIDENTIAL DO NOT COPY Page 8-23 File No. SG-0176 General Feature List : A . Host CPU: 1. ARM 926EJ 2.16K I-Cache and 16K D-Cache 3. 8K Data TCM and 8K instruction 4. JTAG ICE interface 5. Watch Dog timers B . Transport Demuxer : 1. Support 3 independent transport stream inputs 2. Support serial/parallel interface for each transport stream input 3. Support ATSC , DVB , and MPEG2 transport stream inputs. 4. Programmable sync detection. 5. Support DES/3-DES De-scramble. 6. 96 PID filter and 128 section filters. 7. Support TS recording via IEEE1394 interface. C . MPEG2 Decoder : 1. Support dual MPEG-2 HD decoder or up to 8 SD decoder. 2. Complaint to MP@ML , MP@HL and MPEG-1 video standards. D . JPEG Decoder : 1. Decode Base-line or progressive JPEG file. E . 2D Graphics : 1. Support multiple color modes. 2. Point , horizontal/vertical line primitive drawing. 3. Rectangle fill and gradient fill functions. 4. Bitblt with transparent , alpha blending , alpha composition and stretch. 5. Font rendering by color expansion. 6. Support clip masks. 7. YCrCb to RGB color space transfer. F . OSD Display : 1. 3 linking list OSDs with multiple color mode. 2. OSD scaling with arbitary ratio from 1/2x to 2x. 3. Square size , 32x32 or 64x64 pixel , hardware cursor. CONFIDENTIAL DO NOT COPY Page 8-24 File No. SG-0176 G . Video Processing : 1. Advanced Motion adaptive de-interlace on SDTV resolution. 2. Support clip 3. 3:2/2:2 pull down source detection. 4. Arbitrary ratio vertical/horizontal scaling of video , from 1/15X to 16X. 5. Support Edge preserve. 6. Support horizontal edge enhancement. 7. Support Quad-Picture. H . Main Display : 1. Mixing two video and three OSD and hardware cursor. 2. Contrast/Brightness adjustment. 3. Gamma correction. 4. Picture-in-Picture( PIP ). 5. Picture-Out-Picture( POP ). 6. 480i/576i/480p/576p/720p/1080i output I . Auxiliary Display : 1. Mixing one video and one OSD. 2. 480i/576i output. J . TV Encoder : 1. Support NTSC M/N , PAL M/N/B/D/G/H/I 2. Macrovision Rev 7.1.L1 3. CGMS/WSS. 4. Closed Captioning. 5. Six 12-bit video DACs for CVBS , S-video or RGB/YPbPr output. K . Digital Video Interface : 1. Support SAV/EAV. 2. Support 8/16 for SD/HD digital video input. 3. Support 8/16/24 bits digital output for main display. 4. Support 8 bits digital output for aux display. L . DRAM Controller : 1. Support 64Mb to 1Gb DDR DRAM devices. 2. Configurable 32/64 bit data bus interface. 3. Support DDR266 , DDR333 , DDR400 , JEDEC specification compliant SDRAM. CONFIDENTIAL DO NOT COPY Page 8-25 File No. SG-0176 M . Peripheral Bus Interface : 1. Support NOR/NAND flash. 2. Support CableCard host control bus. N . Audio : 1. Support Dolby Digital AC-3 decoding. 2. MPEG-1 layer I/II , MP3 decoding. 3. Dolby prologic II. 4. Main audio output : 5.1ch + 2ch ( down mix ) 5. Auxiliary audio output : 2ch. 6. Pink noise and white noise generator. 7. Equalizer. 8. Bass management. 9. 3D surround processing include virtual surround. 10. Audio and video lip synchronization. 11. Support reverberation. 12. SPDIF out. 13. I2S I/F. O . Peripherals : 1. Three UARTs with Tx and Rx FIFO , two of them have hardware flow control. 2. Two serial interfaces , one is master only the other can be set to master mode or slave mode. 3. Two PWMs. 4. IR blaster and receiver. 5. IEEE1394 link controller. 6. IDE bus : ATA/ATAPI7 UDMA mode 5 , 100MB/s. 7. Real-time clock and watchdog controller. 8. Memory card I/F : MS/MS-pro ,SD ,CF ,and MMC 9. PCMCIA/POD/CI interface P . IC Outline : 1. 471 Pin BGA Package. 2. 3.3V/1.2V dual Voltage. CONFIDENTIAL DO NOT COPY Page 8-26 File No. SG-0176 MX29LV320BTTC (Flash) Application : The MX29LV320AT/B is a 32-mega bit Flash memory organized as 4M bytes of 8 bits and 2M words of 16 bits. MXIC's Flash memories offer the most cost-effective and reliable read/write non-volatile random access memory. The MX29LV320AT/B is packaged in 48-pin TSOP and 48-ball CSP. It is designed to be reprogrammed and erased in system or in standard EPROM programmers. The standard MX29LV320AT/B offers access time as fast as 70ns, allowing operation of high-speed microprocessors without wait states. To eliminate bus contention, the MX29LV320AT/B has separate chip enable (CE) and output enable (OE) controls. MXIC's Flash memories augment EPROM functionality with in-circuit electrical erasure and programming. The MX29LV320AT/B uses a command register to manage this functionality. MXIC Flash technology reliably stores memory contents even after 100,000 erase and program cycles. The MXIC cell is designed to optimize the erase and program mechanisms. In addition, the combination of advanced tunnel oxide processing and low internal electric fields for erase and programming operations produces reliable cycling. The MX29LV320AT/B uses a 2.7V to 3.6V VCC supply to perform the High Reliability Erase and auto Program/Erase algorithms. The highest degree of latch-up protection is achieved with MXIC's proprietary non-epi process. Latch-up protection is proved for stresses up to 100 milliamperes on address and data pin from -1V to VCC + 1V. CONFIDENTIAL DO NOT COPY Page 8-27 File No. SG-0176 CONFIDENTIAL DO NOT COPY Page 8-28 File No. SG-0176 BLOCK DIAGRAM CONFIDENTIAL DO NOT COPY Page 8-29 File No. SG-0176 BUS OPERATION--1 Legend: L=Logic LOW=VIL, H=Logic High=VIH, VID=12.00.5V, VHH=11.5-12.5V, X=Don't Care, AIN=Address IN, DIN=Data IN,DOUT=Data OUT Notes: 1. When the WP/ACC pin is at VHH, the device enters the accelerated program mode. See "Accelerated Program Operations" for more information. 2.The sector group protect and chip unprotect functions may also be implemented via programming equipment. See the "Sector Group Protection and Chip Unprotection" section. 3.If WP/ACC=VIL, the two outermost boot sectors remain protected. If WP/ACC=VIH, the two outermost boot sector protection depends on whether they were last protected or unprotected using the method described in "Sector/Sector Block Protection and Unprotection". If WP/ACC=VHH, all sectors will be unprotected. 4.DIN or Dout as required by command sequence, data polling, or sector protection algorithm. 5.Address are A20:A0 in word mode (BYTE=VIH), A20:A-1 in byte mode (BYTE=VIL). CONFIDENTIAL DO NOT COPY Page 8-30 File No. SG-0176 BUS OPERATION--2 Notes: 1.Code=00h means unprotected, or code=01h protected. 2.Code=99 means factory locked, or code=19h not factory locked. WRITE COMMANDS/COMMAND SEQUENCES To program data to the device or erase sectors of memory , the system must drive WE and CE to VIL, and OE to VIH. An erase operation can erase one sector, multiple sectors , or the entire device. A "sector address" consists of the address bits required to uniquely select a sector. Writing specific address and data commands or sequences into the command register initiates device operations. Table A defines the valid register command sequences. Writing incorrect address and data values or writing them in the improper sequence resets the device to reading array data. Section has details on erasing a sector or the entire chip, or suspending/resuming the erase operation. After the system writes the Automatic Select command sequence, the device enters the Automatic Select mode. The system can then read Automatic Select codes from the internal register (which is separate from the memory array) on Q7-Q0. Standard read cycle timings apply in this mode. Refer to the Automatic Select Mode and Automatic Select Command Sequence section for more information. ICC2 in the DC Characteristics table represents the active current specification for the write mode. The "AC Characteristics" section contains timing specification table and timing diagrams for write operations. CONFIDENTIAL DO NOT COPY Page 8-31 File No. SG-0176 TABLE A. MX29LV320AT/B COMMAND DEFINITIONS Legend: X=Don't care RA=Address of the memory location to be read. RD=Data read from location RA during read operation. PA=Address of the memory location to be programmed. Addresses are latched on the falling edge of the WE or CE pulse. PD=Data to be programmed at location PA. Data is latched on the rising edge of WE or CE pulse. SA=Address of the sector to be erased or verified. Address bits A20-A12 uniquely select any sector. ID=22A7h(Top), 22A8h(Bottom) Notes: 1. All values are in hexadecimal. 2. Except when reading array or Automatic Select data, all bus cycles are write operation. 3. The Reset command is required to return to the read mode when the device is in the Automatic Select mode or if Q5 goes high. 4. The fourth cycle of the Automatic Select command sequence is a read cycle. 5. The data is 99h for factory locked and 19h for not factory locked. 6. The data is 00h for an unprotected sector/sector block and 01h for a protected sector/sector block. In the third cycle of the command sequence, address bit A20=0 to verify sectors 0~31, A20=1 to verify sectors 32~70 for Top Boot device. 7. Command is valid when device is ready to read array data or when device is in Automatic Select mode. 8. The system may read and program functions in non-erasing sectors, or enter the Automatic Select mode, when in the erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 9. The Erase Resume command is valid only during the Erase Suspend mode. CONFIDENTIAL DO NOT COPY Page 8-32 File No. SG-0176 STANDBY MODE MX29LV320AT/B can be set into Standby mode with two different approaches. One is using both CE and RESET pins and the other one is using RESET pin only. When using both pins of CE and RESET, a CMOS Standby mode is achieved with both pins held at Vcc ±0.3V. Under this condition, the current consumed is less than 0.2uA (typ.). If both of the CE and RESET are held at VIH, but not within the range of VCC ± 0.3V, the device will still be in the standby mode, but the standby current will be larger. During Auto Algorithm operation, Vcc active current (ICC2) is required even CE = "H" until the operation is completed. The device can be read with standard access time (tCE) from either of these standby modes. When using only RESET, a CMOS standby mode is achieved with RESET input held at Vss ± 0.3V, Under this condition the current is consumed less than 1uA (typ.). Once the RESET pin is taken high, the device is back to active without recovery delay. In the standby mode the outputs are in the high impedance state, independent of the OE input. MX29LV320AT/B is capable to provide the Automatic Standby Mode to restrain power consumption during readout of data. This mode can be used effectively with an application requested low power consumption such as handy terminals. To active this mode, MX29LV320AT/B automatically switch themselves to low power mode when MX29LV320AT/B addresses remain stable during access time of tACC+30ns. It is not necessary to control CE, WE, and OE on the mode. Under the mode, the current consumed is typically 0.2uA (CMOS level). RESET OPERATION 01The RESET pin provides a hardware method of resetting the device to reading array data. When the RESET pin is driven low for at least a period of tRP, the device immediately terminates any operation in progress, tristates all output pins, and ignores all read/write commands for the duration of the RESET pulse. The device also resets the internal state machine to reading array data. The operation that was interrupted should be reinitiated once the device is ready to accept another command sequence, to ensure data integrity. Current is reduced for the duration of the RESET pulse. When RESET is held at VSS±0.3V, the device draws CMOS standby current (ICC4). If RESET is held at VIL but not within VSS±0.3V, the standby current will be greater. The RESET pin may be tied to system reset circuitry. A system reset would that also reset the Flash memory, enabling the system to read the boot-up firm-ware from the Flash memory. If RESET is asserted during a program or erase operation, the RY/BY pin remains a "0" (busy) until the internal reset operation is complete, which requires a time of tREADY (during Embedded Algorithms). CONFIDENTIAL DO NOT COPY Page 8-33 File No. SG-0176 The system can thus monitor RY/BY to determine whether the reset operation is complete. If RESET is asserted when a program or erase operation is not executing (RY/BY pin is "1"), the reset operation is completed within a time of tREADY (not during Embedded Algorithms). The system can read data tRH after the RESET pin returns to VIH. Refer to the AC Characteristics tables for RESET parameters and to Figure 14 for the timing diagram. WRITE PROTECT (WP) The write protect function provides a hardware method to protect boot sectors without using VID. If the system asserts VIL on the WP/ACC pin, the device disables program and erase functions in the two "outermost" 8 Kbyte boot sectors independently of whether those sectors were protected or unprotected using the method described in Sector/Sector Group Protection and Chip Unprotection". The two outermost 8 Kbyte boot sectors are the two sectors containing the lowest addresses in a bottom-boot-configured device, or the two sectors containing the highest addresses in a top-boot-configured device. If the system asserts VIH on the WP/ACC pin, the device reverts to whether the two outermost 8K Byte boot sectors were last set to be protected or unprotected. That is, sector protection or unprotection for these two sectors depends on whether they were last protected or unprotected using the method described in "Sector/Sector Group Protection and Chip Unprotection". Note that the WP/ACC pin must not be left floating or unconnected; inconsistent behavior of the device may result. SOFTWARE COMMAND DEFINITIONS : Device operations are selected by writing specific address and data sequences into the command register. Writing incorrect address and data values or writing them in the improper sequence will reset the device to the read mode. Table 3 defines the valid register command sequences. Note that the Erase Suspend (B0H) and Erase Resume (30H) commands are valid only while the Sector Erase operation is in progress. Either of the two reset command sequences will reset the device (whenapplicable). All addresses are latched on the falling edge of WE or CE, whichever happens later. All data are latched on rising edge of WE or CE, whichever happens first. WRITE OPERATION STATUS The device provides several bits to determine the status of a write operation: Q2, Q3, Q5, Q6, Q7, and RY/BY.Table B and the following subsections describe  <div id="ezoic-pub-ad-placeholder-110"> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-2156279550025329" data-ad-slot="6566435862" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div>   <script async src="https://www.googletagmanager.com/gtag/js?id=UA-2001630-7"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-2001630-7'); </script> </body> </html>