TCL LCD32M61S3-MS19 User manual

TCL
SERVICE MANUAL
LCD32M61S3-MS19
1. Chapter I specification………………………………………………………6
2. Chaper II Chassis Introduction…………………………………… ……10
Part I MCU working conditions……………………………………………12
Part II Reset section………………………………………………………… 12
Part III Tuner section…………………………………………………………13
Part IVAudio Amplifier and mute control………………………………… 14
Part V Av Out and Audio Amplifier…………………………………………14
Part VI HDMI and EDID introduction………………………………………15
Part VII HDCP Section………………………………………………………17
Part VIII EEPROM for Software……………………………………………18
Part IX Panel ON/OFF Control Section………………………………… …19
3. Chapter III IC Specifications …………………………………………………20
4. Chapter IVAlignment Procedure………………………………………………29
5. Chapter V Spare Parts List …………………………………………………33
6. Chapter VIervice Guiding …………………………………………………50
Part I pictures of Chassis ………………………………………………………52
Part II Block of Diagram ………………………………………………………55
Part III Layout of Mainboard ………………………………… …………56
Part IV Scheme Diagram ………… ………………… …………… ………58
Part V Trouble shooting……………… ……… …………………… ………68
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing, by
the constant improvement of product

WARNING: TOREDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
The lighting flash with arrowhead symbol, with an equilateral triangle is intended to
alert the user to the presence of uninsulated voltage within the product s
enclosure that may be of sufficient magnitude to constitute a risk of electric shock to
the person.
The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
CAUTION:
Use of controls, adjustments or procedures other than those specified herein may result in
hazardous radiation exposure.
CAUTION
RISKRISK OFOF ELECTRIELECTRICC
SHOCKSHOCK DODO NOTNOT OPEN.OPEN.
2
dangerous

3
FOR YOUR PERSONAL SAFETY
1. When the power cord or plug is damaged or frayed, unplug this television set from the wall outlet and refer servicing to
qualified service personnel.
2. Do not overload wall outlets and extension cords as this can result in fire or electric shock.
3. Do not allow anything to rest on or roll over the power cord, and do not place the TV where power cord is subject to
traffic or abuse. This may result in a shock or fire hazard.
4. Do not attempt to service this television set yourself as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service personnel.
5. Never push objects of any kind into this television set through cabinet slots as they may touch dangerous voltage
points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the television set.
6. If the television set has been dropped or the cabinet has been damaged, unplug this television set from the wall outlet
and refer servicing to qualified service personnel.
7. If liquid has been spilled into the television set, unplug this television set from the wall outlet and refer servicing to
qualified service personnel.
8. Do not subject your television set to impact of any kind. Be particularly careful not to damage the picture tube surface.
9. Unplug this television set from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
10.1. Do not place this television set on an unstable cart, stand, or table. The television set may fall, causing serious injury
to a child or an adult, and serious damage to the appliance.Use only with a cart or stand recommended by the
manufacturer, or sold with the television set. Wall or shelf mounting should follow the manufacturer s instructions, and
should use a mounting kit approved by the manufacturer.
10.2. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to overturn.
CAUTION:
Read all of these instructions. Save these instructions for later use.Follow all Warnings and
Instructions marked on the audio equipment.
1. Read Instructions- All the safety and operating instructions should be read before the product is operated.
2. Retain Instructions- The safety and operating instructions should be retained for future reference.
3. Heed Warnings- All warnings on the product and in the operating instructions should be adhered to.
4. Follow Instructions- All operating and use instructions should be followed.
IMPORTANT SAFETY INSTRUCTIONS

4
PROTECTION AND LOCATION OF YOUR SET
11. Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a
wet basement, or near a swimming pool, etc.
Never expose the set to rain or water.If the set has been exposed to rain or water, unplug the set from the wall
outlet and refer servicing to qualified service personnel.
12. Choose a place where light (artificial or sunlight) does not shine directly on the screen.
13. Avoid dusty places, since piling up of dust inside TV chassis may cause failure of the set when high humidity persists.
14. The set has slots, or openings in the cabinet for ventilation purposes, to provide reliable operation of the receiver, to
protect it from overheating. These openings must not be blocked or covered.
Never cover the slots or openings with cloth or other material.
Never block the bottom ventilation slots of the set by placing it on a bed, sofa, rug, etc.
Never place the set near or over a radiator or heat register.
Never place the set in enclosure, unless proper ventilation is provided.
PROTECTION AND LOCATION OF YOUR SET
15.1. If an outside antenna is connected to the television set, be sure the antenna system is grounded so as to provide some
protection against voltage surges and built up static charges, Section 810 of the National Electrical Code, NFPA No.
70-1975, provides information with respect to proper grounding of the mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection
to grounding electrode, and requirements for the grounding electrode.
15.2. Note to CATV system installer : (Only for the television set with CATV reception)
This reminder is provided to call the CATV system attention to Article 820-40 of the NEC that provides
guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding
system of the building, as close to the point of cable entry as practical.
16. An outside antenna system should not be located in the vicinity of overhead power lines or other electric lights or power
circuits, or where it can fall into such power lines or circuits.When installing an outside antenna system, extreme care
should be taken to keep from touching such power lines or circuits as contact with them might be fatal.
17. For added protection for this television set during a lightning storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the antenna. This will prevent damage due to lightning
and power-line surges.
ANTENNA
LEAD- IN WIRE
ANTENNA DISCHARGE
UNIT (NEC SECTION
810-20)
GROUNDING
CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250. PART H)
ELECTRIC SERVICE
EQUIPMENT
GROUND CLAMP
NEC-NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS
a built-in
installer s

OPERATION OF YOUR SET
18. This television set should be operated only from the type of power source indicated on the marking label. If you are not
sure of the type of power supply at your home, consult your television dealer or local power company. For television
sets designed to operate from battery power, refer to the operating instructions.
19. If the television set does not operate normally by following the operating instructions, unplug this television set from the
wall outlet and refer servicing to qualified service personnel. Adjust only those controls that are covered in the operating
instructions as improper adjustment of other controls may result in damage and will often require extensive work by a
qualified technician to restore the television set to normal operation.
20. When going on a holiday : If your television set is to remain unused for a period of time, for instance, when you go on
a holiday, turn the television set and unplug the television set from the wall outlet.
IF THE SET DOES NOT OPERATE PROPERLY
21. If you are unable to restore normal operation by following the detailed procedure in your operating instructions,
do not attempt any further adjustment. Unplug the set and call your dealer or service technician.
22. Whenever the television set is damaged or fails, or a distinct change in performance indicates a need for
service, unplug the set and have it checked by a professional service technician.
23. It is normal for some TV sets to make occasional snapping or popping sounds, particularly when being
turned on or off.If the snapping or popping is continuous or frequent, unplug the set and consult your
dealer or service technician.
FOR SERVICE AND MODIFICATION
24. Do not use attachments not recommended by the television set manufacturer as they may cause hazards.
25.When replacement parts are required, be sure the service technician has used replacement parts specified
by the manufacturer that have the same characteristics as the original part. Unauthorized substitutions
may result in fire, electric shock, or other hazards.
26. Upon completion of any service or repairs to the television set, ask the service technician to perform
routine safety checks to determine that the television is in safe operating condition.
5
off

Specification
Items description Remarks
Model
ID
Model L32M61S3
Remote Control Picture
RC TYPE Philips RC1113339
General
Basic Info.
＋Panel Size（inch）32"
＋Panel Supplier CMO
＋Aspect Ratio 16:9
＋Chassis Name MS19
＋solution MST9E19A
＋Market EM
＋Certification CB
Panel Specification
＋Model V320B1-L04
＋Pixel Pitch (vertical stripe RGB pixels) 0.173mm (H) × 0.519mm (V)
＋Resolution 1366X768
＋Brightness 500 cd/m2
＋Contrast Ratio 1200：1
＋View Angle (H/V) 176°/176°
＋Viewing Technology TFT
＋Response Time (Tr+Tf)
＋Response Time (gray to gray) 6.5ms
＋Back Lights (CCFLx) 16
＋Panel Interface LVDS
＋Color 16.7M
＋Life Time MIN 50,000hrs
Environmental Conditions
＋Operation Temperature 0-50°C
＋Storage Temperature -20-60°C
＋Operation Humidity 90% RH MAX
＋Storage Humidity 10-90% RH
＋Operation Air Pressure
＋Storage Air Pressure
Power
＋Power Supply AC 100-240V,50/60Hz
＋Integrated Power Supply YES
＋External Adapter NO
＋Cord Type (Default) VDE
＋Power Consumption - TV ON 130W
＋Power Consumption - Standby Less than 3W
＋LED indication - Power ON BLUE
＋LED indication - STANDBY Red
＋AC Switch Yes (Side BACK)
＋Standby to Power ON By CH+/- button on panel or ON-OFF/ CH+/- KEY
ON RC
System
＋Tuning - Max Programs 200(0~199)
- Install Features Auto search and fine adjustment
- Technology PLL
- Indication Freq./CH

- Mode channel list
＋TV Systems NTSC-M,PAL M,PAL N
＋IF Freq. 45.75MHz
＋Freq. Bands VHF-L VHF-H,UHF,Hyperband
＋Twin Tuner ---
＋AV System PAL,NTSC
Picture
Picture-Processing(TV/Video)
＋Scan Standard Progresive 60Hz
＋Scaler Mode 16:9, 4:3, zoom, cinerama
＋Comb Filter 2D
＋Black Strech, Blue Strech Yes
＋LTI, CTI Yes
＋PIP/POP - Type NO
＋PIP/POP - Features NO
＋Deinterlace Motion compensation
＋Picture Effects 4 picture effects (Natural,Bright,Personal,Soft)
＋Picture Enhancement Cross-color supress(ccs) skin fresh
correction,Gama correction, Film mode
＋Picture Noise Reduction WEAK;medium;STRONG
＋Color Temperature normal;warm;cool
＋Others
Please add other items referring to factual situation
PC Compatibility
＋VGA Input VGA,SVGA,XGA,SXGA,WXGA@75Hz
＋DVI Input
＋HDMI Input XGA,up to SXGA@75Hz,720P,1080i
＋DDC Yes
HDTV/SDTV Ready
＋SDTV Input - YCbCr (480p/480i,576p/576i)@60Hz
＋HDTV Input - YPbPr (720p,1080i,1080P)@50Hz/60Hz
＋HDTV Input - DVI
＋HDTV Input - VGA (720p,1080i)@50Hz/60Hz
Build-in Data System
＋Teletext Standard ---
＋Teletext Language ---
＋Teletext Pages ---
＋Teletext Features ---
＋CCD(Closed Caption) Yes
＋V-chip Yes
＋Macrovision Yes
＋CGMS
＋HDCP Yes
Sound
Sound Electric Performance
＋RMS Power output(Internal) 2*12W
＋Speaker Max Power 2*6W
Sound Effect
＋Sound Processing BTSC
＋DVSS(Dolby Virtual Surround Sound)
＋AVC(Auto Volume Control) Yes
＋BBE ---
＋SRS ---
＋Sound Features Stereo,News,MUSIC,Personal
＋Sound Control AVC,MTS,SOUND MODE,BASS,TREBLE,
BALANCE
Please add other items referring to factual situation
Accessional Equipment

Other Functions
＋Card Reader ---
＋DVD Combo ---
＋Support USB Connection ---
＋Built-in DTV Reception and System ---
Please add other items referring to factual situation
Operation Control
＋Clock/Timer Function 24h Timer;TURN ON/OFFf;Sleep timer
＋Lock
＋OSD Features OSD position adjustable,
＋OSD Language English,French,Spanish,Portuguese
＋OSD Main Menu Picture,Sound,PAR.CONTROL,Preferences,Setup
,TIMER
＋Keyboard Control (Buttons on the panel) Source,Menu,CH+,CH-,Vol+,Vol-,
＋Remote Control ON-OFF,MENU,INPUT,CH+/-,VOL+/-
,SOUND,PRESET,INFO,FAVORITE,etc,.
Other Functions
＋Game
＋Screen Protect
＋Clear Screen
＋Demo Functions
Please add other items referring to factual situation
Terminals
Connectors Side
＋AV In
p
ut - CVBS
(
RCA
)
---
Audio Input - R/L
(
RCA
)
---
Audio Input - Mono
(
RCA
)
---
＋S-video ---
Audio Input - R/L
(
RCA
)
---
＋Head
p
hone Out - R/L
(
Φ3.5mm
)
---
＋USB Connecto
r
---
Connectors Rea
r
＋AV In
p
ut - CVBS
(
RCA
)
2
Audio Input - R/L
(
RCA
)
2
＋S-video 1
Audio Input - R/L
(
RCA
)
Share with AV1
＋Y,Pb,Pr In
p
ut
(
RCA
)
1
(
component
)
Audio Input - R/L
(
RCA
)
1
＋Y,Cb,Cr In
p
ut
(
RCA
)
Share with
Y
，Pb，Pr
Audio Input - R/L
(
RCA
)
Share with
Y
，Pb，Pr Audio in
p
ut
＋VGA In
p
ut
(
RGB
)
(
D-SUB15
)
1
Headphone In R/L
(
Φ3.5mm
)
Audio Input - R/L
(
RCA
)
1
(
Share with
Y
，Pb，Pr Audio in
p
ut
)
＋DVI Input
Audio Input - R/L
(
RCA
)
＋HDMI In
p
ut 1
＋SCART RGB+Y/C+CVBS In ---
＋SCART RGB+Y/C+CVBS In/out
(
full
)
---
＋SCART Y/C+CVBS In/ou
t
---
＋SCART Y/C+CVBS In ---
＋AV out
p
ut-CVBS
(
RCA
)
1
(
Onl
y
for TV/AV source
)
Audio output - R/L
(
RCA
)
＋Audio Out
p
ut - R/L
(
RCA
)
1
＋Audio Out
p
ut - R/L
(
Line
)
＋Head
p
hone Out - R/L
(
Φ3.5mm
)
1
＋Audio Out
p
ut - Woofe
r
(
RCA
)
---
＋Control/Signal Socket (for MFB) ---
＋S/W Updating Socket Share with VGA SOCKET
＋RF - Terr.Antenna in
(
T
yp
e
)
75ohm
(
F TYPE
)
＋ITV Smart Port ---
＋I-Link
(
1394
)
Ca
p
acit
y
---
＋IR Blaster Jack ---
＋Other Function Extended Interfaces ---
＋Power In Cinch AC code in
Connectors Front
＋AV Input - CVBS (RCA) ---
Audio Input - R/L (RCA) ---
Audio Input - Mono (RCA) ---
＋Headphone Out - R/L (Φ3.5mm) ---
＋USB Connecto
r
---
Connectors Top
Please add other items referring to factual situation X
X
Connectors Bottom
Please add other items referring to factual situation X
X
Configuration
＋Cabinet Name M61

Configuration&Artwork
＋Features Flat (no arc)
＋Speaker Assemble Mode Integrated
＋Speaker Grille original holes in F.CAB
＋Front Cabinet - Material and Color HIPS Black A6881
＋Rear Cabinet - Material and Color HIPS Black A8252
＋Keyboard Position Middle on top of the front panel
＋Tuner Detachable No
Artwork
＋O
p
eration Manual Lan
g
ua
g
eEn
g
lish
＋Lo
g
o Features
(
Front
p
anel
)
stamp
＋Dimension - with Base Stand
(
L*H*D
)
813*613*219
(
mm
)
- without Base Stand (L*H*D) 813*562*100
(
mm
)
＋Dimension -
p
acka
g
ed
(
L*H*D
)
986*731*358
(
mm
)
＋Net Weight 16.5kg
＋Gross Weight 20Kg
＋Container Loading - 20 fee
t
111sets
- 40 feet 234sets
- 40 feet high 234sets
Wall Mount
＋Type WMB230 (optional)
＋Features fixed ： ，
＋Packaging Method Separated
＋Dimension - packaged (L*H*D) 265*168*44(mm)
＋Net Weight and Gross Weight Net Weight: 0.2kg ; Gross Weight:0.5 Kg
S
p
eaker Bo
x
＋Fixing Method ---
＋Features ---
＋Packaging Method ---
＋Dimension - packaged (L*H*D) ---
＋Dimension - unpackaged (L*H*D) ---
＋Net Weight and Gross Weight ---
Multi-function Box ---
＋Packaging Method ---
＋Dimension - unpackaged (L*H*D) ---
＋Dimension - packaged (L*H*D) ---
＋Net Weight and Gross Weight ---
Base Stand
＋Features
＋Packaging Method Integrated
＋Dimension - packaged (L*H*D) no
＋Dimension - unpackaged (L*H*D) no
＋Net Weight and Gross Weight Net Weight:2 Kg ; Gross Weight: 2Kg
＋Container Loading - 20 fee
t
no
- 40 feet no
- 40 feet high no
Accessories
＋Operation Manual Yes
＋Service Manual ---
＋Warranty Card ---
＋Schematic Diagram ---
＋Remote Control Yes
＋Battery (number and type) Yes (2×AA,1.5V）
＋Speakers Box(external) ---
＋Wall Mount optional
＋Wireless Headphone (external)
＋RF Cable
＋Power Cord YES
＋DVI Cable
＋VGA Cable
＋HDMI Cable
＋Control/Signal Cable (Panel to MFB)
＋AV Cable
＋Component Video Cable
＋Audio Cable
Please add other items referring to factual situation

Chapter II Chassis Introduction
LCD32E62S3/LCDM61S3/LCDM71S3 adopted Mstar integrated 1-chipset solution MS19
(MST9E19A).It has characteristics as following,
¾MStarACE-3 (3rd Generation Advanced Color Engine) Automatic Picture/Color
Processor:
. Brilliant and fresh color
. Intensified contrast and details
. Vivid skin tone
.Sharpedge
. Enhanced depth of field perception
. Accurate and independent color control
¾2D Comb filter
¾Progressive Scan
¾Digital Noise Reduction
¾Film Mode (3:2 pull down)
¾Gamma Correction
¾4 Picture Effects (Natural,Standard,Bright,Soft)
¾Variable Aspect Ratio (16:9,4:3,Cinerama,Zoom)
¾HDTV-Ready (1080i;720p)@50Hz/60Hz
¾HDMI/VGA Input up to SXGA@75Hz
¾V-Chip
¾CCD
¾Sleep Timer,24h timer turn on/off
¾MTS Stereo (BTSC-SAP)
¾4 Mode Sound Presets (Standard; News; Music; Personal)
¾Sound Control: Treble, Bass, Balance,AVL etc.
¾HDMI (HDCP) input ×1 , (V1.1)
¾RF input (NTSC-M,PAL-M/N) ×1
¾HDTV input (Component) ×1
¾AV input ×2
¾S-Video input ×1
¾VGA input ×1
¾AV output ×1
¾Headphone output×1
Chassis MS19 circuitries include: tuner, decoder and scanner, audio amplifier, remote control
receive, key input and power supply unit and so on. It adopted ICs as following, MST9E19A-LF
208PI, ISL8105IBZ, TDA7266 , TDA1308T/N2, TL431ACLP, M24C32, KD1084A-18.
I. Video signal input processing circuit.
Radio frequency signal from antenna or cable input tuner, after it processed, Pin17 of tuner output
video signal, then input Pin49/50 of U8(MST9E19A).
II. AV signal input processing circuit.

AV1/AV3 through socket P14 input Pin45/Pin47 of U8, S-video input through socket P15 input
Pin42/Pin43/Pin44 of U8. YCbCr Video Signal input through socket P16 input.
III.HDMI video signal input through socket P12 input Pin1-Pin15 of U8.
IV.VGA input through socket P13 input Pin16-Pin28 of U8.
V. Audio signal input, the audio signal through antenna process and output from Pin7 of Tuner
and input Pin54/Pin55 of U8.The AV1’s audio signal input Pin63/Pin64 of U8,AV2’s audio signal
input Pin66/Pin67 of U8; AV3’s audio signal input Pin69 and Pin69 of U8.
All channels audio signal through inside circuitry process, output from Pin74/Pin75 of U8, send to
audio amplifier U19( TDA7266SA) processing and driver speaker phonating.

Representative Circuitry Introduction
Part I Mcu Working Conditions
I. power supply showing as following figure,
II. reset circuitry working normal.
III. Crystal working normal
IV. SCL and SDA working normal and so on.
Part II. Reset Section
Each time turn on the TV, after power supply loading, the reset circuitry is working, Pin205 of
U8 is high level durative about 40ms, then finished the TV reset. It is low level under normal
situation. While the 3.3V voltage is loading, charge on C74 and C80, due to the resistance of D40
is smaller than R32, so the voltage on C74 will higher than C80, Q8 turnon, the current passes
Q8,Pin205 of U8 get high level. As the voltage charge on C80 fully, Q8 cut-off, finished the TV
reset.

Part III. Tuner Section
Tuner receives the RF signal, and after the circuitry inside it deal with, and get the CVBS signal
sends to Pin49/50 of MST IC. The another signal path is SIF signal out from Pin7 of Tuner and
sends to Pin 54/55 of MST IC. The detail signal following process please refer to circuitry
diagram as following,

Part IVAudio Amplifier and Mute Control
The audio signal after MST IC decoder and get out from Pin74/75 of MST IC, and through
integral circuitry (R33,R38,C76 and R45,R50,C82) send to Pin4/12 of audio power amplifier
U19 to drive speaker.
Part V AV Output Audio Amplifier Section
The phone audio signal output from Pin71/Pin 71,through the integral circuitry R34/R36/C37 and
R47/R51/C83 send to U16 and output from P17.

Part VI HDMI EDID Introduction
Extended display identification data (EDID) is a data structure provided by a
computer display to describe its capabilities to a graphics card. It is what enables
a modern personal computer to know what kind of monitor is connected. EDID is defined
by a standard published by the Video Electronics Standards Association (VESA). The
EDID includes manufacturer name, product type, phosphor or filter type, timings
supported by the display, display size, luminance data and (for digital displays
only) pixel mapping data.
The channel for transmitting the EDID from the display to the graphics card is usually
the I2C bus. The combination of EDID and I²C is called the Display Data Channel version
2, or DDC2. The 2 distinguishes it from VESA's original DDC, which used a different
serial format.
Before DDC and EDID were defined, there was no standard way for a graphics card to
know what kind of display device it was connected to. Some VGA connectors in personal
computers provided a basic form of identification by connecting one, two or three
pins to ground, but this coding was not standardized.
The EDID is often stored in the monitor in a memory device called a serial PROM
(programmable read-only memory) or EEPROM (electrically erasable PROM) that is
compatible with the I²C bus.

VGA EDID OR DDC

PART VII HDCPSection
High-bandwidth Digital Content Protection (HDCP) is a form of Digital Rights
Management (DRM) developed by Intel Corporation to control digital audio and video
content as it travels across Digital Visual Interface (DVI) or High-Definition
Multimedia Interface (HDMI) connections. The specification is proprietary, and
creating an implementation of HDCP requires a license .HDCP is licensed by Digital
Content Protection, a subsidiary of Intel. In addition to paying fees, licensees
agree to limit the capabilities of their products. For example, high-definition
digital video content must be restricted to DVD quality on non-HDCP compliant video
outputs when requested by the source. DVD-Audio content is restricted to DAT quality
on non-HDCP digital audio outputs (analog audio outputs have no quality limits).
Licensees cannot allow their devices to make copies of content, and must design their
products in ways that "effectively frustrate attempts to defeat the content
protection requirements."
Each HDCP capable device has a unique set of keys; there are 40 keys, each 56 bits
long. These keys are confidential and failure to keep them secret may be seen as
a violation of the license agreement. For each set of keys a special key called a
KSV (Key Selection Vector) is created. Each KSV has exactly 20 bits set to 0 and
20 bits set to 1.
During the authentication process, both parties exchange their KSVs. Then
each device adds (without overflow) its own secret keys together according
to a KSV received from another device. If a particular bit in the vector
is set to 1, then the corresponding secret key is used in the addition,
otherwise it is ignored. Keys and KSVs are generated in such a way that
during this process both devices get the same 56 bit number as a result.
That number is later used in the encryption process.As result that, this
chassis adopts 24C04 to storage KSV and license makes digital signal
resource output.

PART VIII EEPROM for Software
It adopts Winbond company’s W25X40 flash which has 4M-bit/526 bytes and 2048pages.It is
used for storage the main system software. The devices operate on a single 2.7V to 3.6V power
supply with current consumption as low as 5mA active and 1uA for power-down.。
EEPROM for User Information
It adopts I2C compatible electrically erasable programmable memory (EEPROM) devices are
organized as 4096x8 bits(32k).This is a two-wire series interface that uses a bi-directional data bus
and serial clock. It is used for storage user’s information, such as channel search and timer on and
off, and picture standard and other information what user’s easy to change by local key board and
remote control.

PART IX Panel ON/OFF Control Section
While the TV is turn on, the TV is standby situation. While command turn on is send out, 5v
voltage will through regulator and equal get 3.3V voltage or 1.8V voltage supply for U8. After
reset and crystal Y1 working, the main system software will be loaded, the panel –ON/OFF
command will be sent out, makes the dual-MOSFET U3 turn on and send 5V/12V/3.3V voltage to
the panel.
The following figure is showing the power sequence and control signal timing.

Chapter III IC Sepecifications
Part I Specification of MST9E19A
Part II Specification of TDA7266