TCL L32F3300 User manual

SERVICE MANUAL
1. Caution…………………………………………………………………………2
2. specification……………………………………………………………………6
3. Alignment Procedure…………………………………………………………7
4．Block diagram…………………………………………………………………1
5．Scheme Diagram ……………………………………………………………
5. Troubleshooting………………………………………………………………2
6. PCB Layout …………………………………………………………………3
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This m anual i s t he l atest at t he t ime of pr inting, and doe s not
include the modification which may be made after the printing, by
the constant improvement of product

CA UTION: TO RE DUCE THE RIS K OF
ELECTR ICA L SHOCK, DO NOT RE MOVE
COVER (OR BACK). NO USER SERVICEABLE
PAR TS INSIDE . RE FE R SER VIC ING TO
QUALIFIE D 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 products
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.
CA U T ION
RISK
RISK OF
ELECTR I
ELECTR IC
SHOCK
SHOCK DO
NOT
NOT
OPEN.
OPEN.
2
dangerous
WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
SCHNEIDER ELECTRONICS GMBH-GERMANY
1. CAUTION
2

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. Sa ve these instructions for later use . Follo w all W arnings and
Instructions marked on the audio equipment.
1. Read Instructions-All the safety and operating instructionsshouldbe read before the productis 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.
3
SCHNEIDER ELECTRONICS GMBH-GERMANY
IMPORTANT SAFETY INSTRUCTIONS
FOR YOUR PERSONAL SAFETY
3

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.
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 SECTION810-21)
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
4
SCHNEIDER ELECTRONICS GMBH-GERMANY
PROTECTION AND LOCATION OF YOUR SET
PROTECTION AND LOCATION OF YOUR SET
4

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.
21. If you are unable to restore normal operation by following the detailedprocedurein your operatinginstructions,
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.
24. Do not use attachments not recommendedby the television set manufacturer as they may cause hazards.
25. When replacementparts are required, be sure the service technicianhas used replacementparts 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.
off
5
SCHNEIDER ELECTRONICS GMBH-GERMANY
OPERATION OF YOUR SET
IF THE SET DOES NOT OPERATE PROPERLY
FOR SERVICE AND MODIFICATION
5

EM BUSINESS CENTER
FTV PRODUCT MANAGEMENT DEPTFTV PRODUCT MANAGEMENT DEPT.
SPECIFICATION RELEASE
Version: V1.0 Issued Date: 2013.08.05
Model: L32F3300/MT27S-LA/NDAL CJ9W01 V3
PICTURE
Category LCDTV
Dynamic Contrast Yes
Color Temperature Warm / Standard/ Cool
Backlight Adjustable Yes
SIGNAL FORMAT CAPABILITY
St d d F ll S btitl Wid S
Scale Mode
St
an
d
ar
d
,
F
u
ll
,
S
u
btitl
e,
Wid
e
S
creen,
Zoom,Expand,Original,Natural Component Video Format Y,P
B /C B ,P R /C R :up to 1080P
Picture Effect Standard, Bright, Soft, User DVI Video Format Up to XGA for HDMI-PC
Film Mode (3:2 pull down) AUTO HDMI Video Format up to 1080P
VGA Dot to Dot Display Yes (Natural) PC Compatibility Up to SXGA
Light Sensor ON/OFF. When set to ON,TV can automatically
TERMINALS
adjust the backlight according to the intensity of AV1 Input (Composite) Audio/CVBS---R/L+ Video in side
ambient light,and it is in power saving mode. AV2 Input (Composite)
Video Share with Y
and Audio share with YP
B P R Audio
Picture Enhancement YP B P R Input 1---Downward
Comb Filter 3D Audio Input for YP
B P R 1---Downward
Adaptive Deinterlacing 3D YC
B C R Input Share with "YP B P R "
Blue Stretch Yes Audio Input for YC
B C R Share with Audio for "YP B P R "
Black Stretch Yes VGA(PC) Input 1 (D-Sub,15 Pins)---Downward
DLTI Yes Audio Input for VGA(PC) Share with Audio for "YP
B P R "
DCTI Yes HDMI 1 ---downward
Dynamic Skin Correction Yes CVBS Video Output (Composite) 1 RCA video socket,Downward
PANEL SPECIFICATION
CVBS Audio Output 1 Φ3.5mm socket--Side
Back light Unit LED Headphone Output No
Pl li
TCL
RF I t(A t )
1(FT ) D d
P
ane
l
supp
li
e
r
TCL
RF
I
npu
t(A
n
t
enna
)
1
(F
T
ype
)
---
D
ownwar
d
Aspect Ratio 16:9 USB 1（Standard）---side
Panel Size (inch) 32"
BASIC INFO.
Display Resolution 1366*768 TV System NTSC-M, PAL-M, PAL-N
Brightness (cd/m2) 280 AV System PAL,NTSC
Contrast Ratio 4000:1 Channels Cable 125 (1～125) , Antenna 68 (2～69)
Response Time Tr/Tf
65ms
Chassis
MT27S
-
LA
Response
Time
Tr/Tf
6
.
5ms
Chassis
MT27S LA
Viewing Angle (H/V) 178°/178° Certification CB
Life Time 30,000hrs Power Supply AC 100V-240V 50/60Hz
Color 16.7M Power Consumption-TV on 60W
SOUND
Power Consumption-Standby ≤1W
Speakers Integrated speakers (Bottom) Default Color of Front Cabinet Black
Audio Power Output 2×8W Keyboard Position Side
Woofer Power Output -- Base Stand Detachable Yes
Smart Volume Yes
PACKAGE INFO.
Sound Effect Standard, Movie, News, User Unpackaged Dimension for Main Body (L*H*D) (mm)
Sound Control Balance, Bass, Treble With Base Stand (mm) 734×183x486
Sound Features BTSC Without Base Stand (mm) 734×69x441
Scene Selecting（Desk Top mode and Hang Up mode）
Packaged Dimension (L*H*D)
FUNCTION
Main Body (mm) 963×130×532
OSD Language English,Spanish, Portuguese Speaker Box --
OSD Features Motion Bmp Style Base Stand …
CC (Closed Caption) Yes (CC1~CC4,Text1~Text4; Net Weight (Kg) 8
CC OFF,CC ON,CC On Mute,) Gross Weight (Kg) 10
Clock/Sleep Timers Yes
Container Loading
Wake up/Turn off time Yes 20 feet
Wake up/Turn off time Yes 20 feet 432
Wake up Source/Channel Yes 40 feet 888
Watch Time Limit Yes 40 feet high 1108
Smart Switch Yes(Signal Auto Detecting and Changing Source)
ACCESSORIES
Picture Freeze Yes Operation Manual English(Default)
DNR（Dynamic Noise Reduction）Off、Low、standard 、strong Remote Control For TV control (with two batteries)
Hotel Menu
In factory mode
Base Stand
Integrated Packaging
Hotel
Menu
In
factory
mode
Base
Stand
Integrated
Packaging
USB Connection Movie：Support H.264、RM/RMVB, Speaker Box No
MPEG2、MPEG4,etc. Wall Mount
WMB231 （100*100，M4*12)
Photo: Support JPEG、BMP Others AC Power cord
Music: support MP3
Drafted by: 魏 刚
Note: For coding files, there are many kinds of no-standard coding method. So this system can not
Checked by:
Design and specifications are subject to change without notice!
Approved by:
Note: For coding files, there are many kinds of no standard coding method. So this system can not
be guaranteed to support the file formats using any coding method.

TCL Multimedia Technology Holdings Ltd.
R&D Center
Alignment Procedure
MT27S-AP/LA Chassis
Version: 1.0
Release Date: 2012-4-16
PREPARED BY: SHU XIANG CHENG DATE: 2012-4-16
APPROVEDBY: DATE:

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
2
Content
1. General Description 3
2. Factory Menu 3
2.1 Way of accessing 3
2.2FactoryMenu 4
2.3 White Balance adjustment 5
3.DesignMenu1 6
4. DesignMenu2 7
4.1 HOTEL MENU 7
4.1.1 Accessing way 8
5. Steps of debugging 9
5.1device 9
5.2 Steps of debugging 9
5.3WBadjustment 9.10
6.ChiplistofsoftwareprogrammingbeforeSMT 11
7.Appendix 11
7.1 Software upgrading through USB 11
7.2 Check software version, release date and Project ID 12.13
7.3FAQ 14
History Description of major changes Release
Date
V1.0 2012-4-16
Chassis Model
FHD
HD MT27S-APLA L32D3260, etc

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
3
1. General Description
MT27S-AP/LA is our latest design especially for LCDTV products selling in Asia
Pacific (AP) and Latin America (LA) market. It features by its high integration,
easy debugging as well as convenience in terms of maintenance. Fast software
upgrade through USB disk facilitates both manufacture and after-sale service.
Meantime, a variety of functions involved in Factory Main Menu can not only
bring benefits for production, but also satisfy various demands of customer.
Note: Factory Menu covers all indispensable functions during manufacture such as
White Balance Adjustment, Shop Init, NVM Reset,DesignMenu1,DesignMenu2 e.g.,
while the items under DesignMenu1 and DesignMenu2 is exclusively used by R&D
engineer, anyone else shouldn’t change the settings in the menu. When you wish to
learn the product information like project ID, model name, you can access to
DesignMenu1. In addition, in Hotel Menu, we also provide a great deal of useful
functions for specific applications in hotel.
2.1 Accessing way:
a. In the first place, press Menu
button of remote control, then select
Contrast item of Picture submenu.
Finally, press 9, 7, 3, 5 consecutively.
b. When the FAC HOTKEY item of
Factory Menuis enabled (ON), press
Return button of remote control.
2. Factory Menu

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
4
2.2 Factory Menu
Factory Menu
Name Default Description Status
HOTKEY OFF Factory Menu shortcut button switch
The item must be disabled (OFF) after production
OK
WARM- UP OFF OFF: Normal mode. Display blue screen when no signal. Turn to
automatically standby mode if keep the signal unavailable over
15 minutes.
ON: Aging mode. Display Red
， Blue ， Green ， White Scene when no
signal. The set will not turn to standby even if the unavailability of
signal, Press MENU of KEY TO exit
OK
WB >> White Balance Adjustment ( see details below) OK
SHOP Init DO It is crucial that the function is executed after production aim to clear
information of production process, ensure user cannot access to
Factory Menu after executing the item.
OK
NVM RESET DO Restore default value except WB OK
Pre Channel DO Preset the channel table of factory. Option: HZ, WX, NMG, ORION e.g.
To preset the channel table of certain factory, firstly, choose the
corresponding factory name, then press OK button of remote control
and wait until the disappearance of Factory Menu,
OK
PowerMode LAST/STB ON: the set will power on after switching on power.
STB: the set will remain standby status after switching on power.
Last: the set will turn to the status in which it lies when last switching
off.
If without requirement from certain customer,
by default, the Setting should be Last for MT27S-AP and STB for
MT27S-LA
OK
DesignMenu1 DO exclusively used by R&D engineer OK
DesignMenu2 DO exclusively used by R&D engineer OK
Sound Curve DO Exclusively used by R&D. OK
Logo ON/OFF DO Display TCL Logo or not. On : display,
Off: not display
OK
VER. DO
software version, release date e.g., OK
RFFILTER Exclusively used by R&D. ok

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
5
2.3 White Balance Adjustment menu
White Balance menu
Press the button in remote control to select
certain item and to adjust White Balance
White Balance Adjustment menu
Name Default Description Status
BlanceSource AV1 Select the source you intend to apply WB adjustment.
Only HDMI1, AV1, YPBPR, PC and should be adjusted.
OK
ColorTemp Standard Select color temperature you intend to adjust Three groups of
color temperature: Normal, Warm, Cool are available for each
source.
OK
R GAIN +2 Gain of R channel ( cannot be changed after auto calibration) OK
G GAIN 0 Gain of G channel ( cannot be changed after auto calibration) OK
B GAIN -7 Gain of B channel ( cannot be changed after auto calibration) OK
R OFFSET 0 Sw Default ,NOT need calibration OK
G OFFSET 0 Sw Default ,NOT need calibration OK
B OFFSET 0 Sw Default ,NOT need calibration OK
WB INIT White Balance Initalization. Before WB adjustment, this item should
be executed. OK

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
6
DesignMenu1
Name Default Description Status
Initvol 25 Exclusively used by R&D. OK
TunerAGC 0 Exclusively used by R&D. OK
ProjectID the product information like project ID, model name OK
PrintMessage OFF Exclusively used by R&D. OK
Descramble
box OFF Exclusively used by R&D. OK
Descramble
box OFF Exclusively used by R&D. OK
Sound_Count 0 Exclusively used by R&D. OK
DBC 0 Parameter of DBC
Exclusively used by R&D.
OK
DB_CP 100 Exclusively used by R&D. OK
3. Desi
g
nMenu1
Press the button in remote
control to select certain item and
to toggle among or execute
the available options.

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
7
DBC_BP 60 Exclusively used by R&D OK
Spread Step 30 LVDS Spread expand
Exclusively used by R&D
OK
4 DesignMenu2
Press the button in remote control to
select certain item and to toggle
among the available options..
DesignMenu2
Name Default Description Status
Panel_control on Exclusively used by R&D OK
Panel_freq 30 Exclusively used by R&D OK
Panel_percent 5 Exclusively used by R&D OK
bluemute on Exclusively used by R&D OK
Otherct1 on Exclusively used by R&D OK
FleshTone on Exclusively used by R&D OK
LumaControl on Exclusively used by R&D OK
Hotel Menu
（ enable ） off Hotel Menu is accessible only when HOTEL Menu
(enable) item is enabled (ON). OK
USB UPG Upgrade software. Please see details below. OK

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
8
4.1 HOTEL MENU
BackIT off Exclusively used by R&D ok
4.1.1 Accessing way:
a. Hotel Menu(enable)item is enabled(on)
b. press Menu button of remote control,
then select
Contrast item of Picture submenu.
Finally, press 9, 7, 1, 5 consecutively.
HOTEL MENU
Name Default Description Status
POWER
LOGO ON LOGO select OK
CH LOCK OFF Channel scan lock. OK
MAX VOL 100 Max volume OK
AUTO SET OFF The switch of PIC, SOUND etc.
When it is ON, these items are selectable.
OK
PIC MODE user Picture mode. OK
SOUND
MODE user Sound mode OK
POWER
VOL. 25 Default volume when power on OK
POWER
SIGNAL TV Default signal source when power on OK
POWER
CHANNEL 1 Default channel no. when power on OK
KEY LOCK OFF Lock the keys. OK
SAVE DATA
TO USB DO Save the settings of TV to USB OK
Write Data
from USB DO Copy the settings of USB TO TV OK

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
9
Color Analyzer CA-210. Video Pattern Generator Chroma2329. Color TV Pattern
Generator PM5418, VGA cable, AV cable(RCA),YPBPR(RCA) cable.
。
Chroma2329 Fluke5418 CA-210
According to the requirement of order, we suggest take the below steps to finish
the appropriate settings.
A enter the Factory Menu, enable HOTKEY
B Check the version of software, release date displayed at the bottom of Factory
Menu. If the information is correct, you can ignore step C and D.
C Enter Factory Menu, choose DESIGNMENU1->PROJECT ID, choose corresponding
Project ID number of the product (Please refer to the description in BOM about
Project ID number).
D return to DesignMenu1, check the Product model.
E choose Factory Menu-> NVM RESET and press and wait until prompt OK
appears.
F restart the set
G according to the requirement of order, set the items of Hotel Menu etc.
H After aging under normal temperature, adjust white balance.
I choose Factory Menu-> SHOP INIT and press button of remote control to
initialize the set.
Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default.
Therefore, if order requires hotel function, it is necessary to enable hotel function by
set Factory Menu-> DesignMenu2->HOTEL MENU ENABLE to ON.
Before adjustment, you must ensure Color Analyzer has been calibrated. Only AV1,
YPBPR, VGA , HDMI 1 need to be adjusted. It is necessary to adjustment HDMI 1
firstly.
a. signal and generator
The pattern of the signal should be used are White (Chroma2329 pattern113) and
Grey (pattern 114).The format of signal are respectively 720p for HDMI1
(Chroma2329 Timing 69), NTSC for AV1 (Chroma2329 Timing 37),1024×768@60Hz
5. The ste
p
s of debu
gg
in
g
5.1 Device
5.2 ste
p
s of debu
g
g
in
g
：
5.3 White Balance adjustment (Manual)
：

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
10
(Chroma2329 Timing 14) for VGA and 720p (Chroma2329 Timing 79)for YPBPR
b. steps of adjustment
1) enter the factory menu->WB, select source HDMI 1 and COLORTEMP normal.
2) input white signal in 720p format
3) change R Gain and B Gain to make sure the value of color coordination equal to
(x, y).
In addition to select COLORTEMP COOL/WARM, the adjustment method of COOL
and WARM color temperature is same with that of NORMAL. The color coordination
we recommend is as follows:
Device：CA-210；Accuracy：±0.015
Color Temperature WARM NORMAL COOL
LCD x 0.300 0.280 0.270
y 0.305 0.290 0.270
LED x 0.302 0.282 0.272
y 0.317 0.302 0.282

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
11
6. Chip list of software programming before SMT
Following chip must be programmed before SMT byALL-11 or other tools.
Note:
1) The software for U401 can be program using ISP tool.
2) Every set has its unique HDCP key which is purchased from suppliers or HDCP
certification authority. Please check HDCP function in the process of production.
3) Once in a while, the software of main board may be upgraded. Please pay attention to
use the latest software before production.
Appendix:
1. Software upgrade through USB disk
1) Please ensure the software you are using has a correct file name
TCL_MT27_UPDATE.bin, then copy it to the root directory of a USB disk.
2) Insert the USB disk to the USB socket of the set for which you are
going to upgrade program.
3) Enter the Factory Menu (you can choose either a or b way below)
a. In the first place, press Menu button of remote
control, then select Contrast item of Picture
submenu. Finally, press 9, 7, 3, 5 consecutively.
b. When the Factory hotkey item of Factory Menu
is enabled (ON), press Return button of remote control.
4) select USB UPG item of DesignMenu2 submenu, press buttonof remote control, a pop
menu
will appear prompting whether start upgradeor not. Press Yes to start upgrade,
Position Chip type Chip name Part number Software
description Decal
1 U401 Flash W25Q32 13-W25Q32-BVB Main
software;HDMI
KEY;EDID
SO-8
HDMI White Balance adjustment

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
12
press No to canel. Please wait patiently until the set restart automatically after
upgrade. Do not cut off the power supply during the process.
2. Check software version, release date and Project ID
After upgrading, sometimes you may not certain whether the new software has
been successfully updated or not. In this case, you can check the software version
and release date in Factory Menu to make sure the success of upgrading.
In addition, for the convenience of software management, many models of same
chassis may share a same software, but are allocated with different Project ID.
In another words, every model has its unique Project ID. Obviously, Both software
version and Project ID are highly critical to ensure the set work properly. Therefore,
after upgrading software,we suggest you check these information by following
method.
1) Enter the Factory Menu(you can choose either a or b way below
a In the first place, press Menu button of remote control, then select Contrast item
of Picture submenu. Finally, press 9, 7 3, 5 consecutively.
b. When the HOTKEY item of Factory Menu is enabled (ON), press Return button of
remote control.
2) Check the version of software, release date displayed at the bottom of Factory
Menu. If the information is correct, you can ignore step 3.
3) choose DesignMenu1->PROJECTID, choose corresponding Project ID number of
the product (Please refer to the description in BOM about Project ID number).
4) choose Factory Menu and press OK button of the remote. Next, select NVM RESET
and press and wait until prompt OK appears.
5) choose SHOP INIT and press button of remote control to initialize the set.
Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default.

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
13
Therefore, if order requires hotel function, it is necessary to enable hotel function by
set Factory Menu-> DesignMenu2->HOTEL Menu enable to ON.
6) restart the set.
Product
Information
Project ID
Change project ID

MT27S-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
14
3. FAQ
1) Why there is no picture after upgrading software or changing project ID?
It may be caused by fault of project ID. You can try below method to fix
the problem.
a. If the resolution of the panel of your set is 1366×768(HD panel), you can press
062598,Menu, and Number(HD panel projectID) of remote control in series after
turning on.
b. If the resolution of the panel of your set is 1920×1080(FHD panel), you
can press 062598,Menu, and Number(FHD panel projectID) in series after
turning on.
c. If you can see the picture at this time, please recheck the project ID again. If
the project ID is still wrong, correct it reference to above description.