TCL L28E3500 User manual

TCL
SERVICE MANUAL
L28E3500MS82MT-LA
1. CautionĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ2
2. Specification ĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ6
3. Alignment ProcedureĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ7
4. Block Diagram ĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ2
5. Scheme DiagramĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ 2
6. PCB Layout ĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ27
7. Trouble ShootingĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ
8. Explode DiagramĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ35
9ˊBOM ListĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂĂ36
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


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 FER 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
ELECTRI
ELECTRIC
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


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 restorenormal operation by followingthe 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 DEPT.
SPECIFICATION RELEASE
Version: V2.1 Issued Date: 2013.03.27
PICTURE
Model:L28E3500/MS82MT-LA
Category LCD TV
Naturalight Technology Yes (Natural Light Engine ‖)
Dynamic Contrast Yes
Color Temperature Warm / Normal / Cold
Backlight Adjustable Yes SIGNAL FORMAT CAPABILITY
Scale Mode Zoom,Expand,Original,Natural Component Video Format Y,PB/CB,PR/CR:up to 1080P
Picture Effect Standard, Bright, Soft, Personal 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
--
TERMINALS
Light Senso
r
--
TERMINALS
AV1 Input (Composite) Audio/CVBS---R/L+ Video in side
AV2 Input (Composite) Video Share with Y
Picture Enhancement and Audio share with YPBPRAudio
Comb Filter 3D YPBPRInput 1---in side
Adaptive Deinterlacing 3D Audio Input for YPBPR1---in side
Blue Stretch Yes YCBCRInput Share with "YPBPR"
Black Stretch Yes Audio Input for YCBCRShare with Audio for "YPBPR"
Motion Compensation Yes VGA(PC) Input 1 (D-Sub,15 Pins)---in side
DLTI Yes Audio Input for VGA(PC) Share with Audio for "YPBPR"
p()
DCTI Yes HDMI 1 (HDMI1) ---in side
Dynamic Skin Correction Yes CVBS Output (Composite) 1 RCA Video Socket ---in side
PANEL SPECIFICATION SPDIF Output 1 (coaxial digital audio output)---in side
Back light Unit LED Headphone Output --
Panel supplier CSOT RF Input(Antenna) 1 (F Type)---in side
Aspect Ratio 16:9 USB 1（Standard）---in side
Panel Size (inch) 27.5" BASIC INFO.
Display Resolution 1366*768 TV System NTSC-M;PAL-M;PAL-N
Brightness (cd/m2) 240 AV System PAL,NTSC
Contrast Ratio 3000:1 Channels Cable 125 (1～125) , Antenna 68 (2～69)
Response Time Tr/Tf 6.5ms Chassis MS82MT-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 35W
SOUND Power Consumption-Standby ≤1W
Speakers Integrated speakers (Bottom side) Default Color of Front Cabinet Black
Audio Power Output 2×2.5W Keyboard Position Back
Woofer Power Output -- Base Stand Detachable Yes
Smart Volume
Yes
PACKAGE INFO
Smart
Volume
Yes
PACKAGE
INFO
.
Sound Effect Stereo, Music, Movie, News,Personal Unpackaged Dimension for Main Body (L*H*D) (mm)
Sound Control Balance, Sound EQ Adjust; With Base Stand (mm) 657.7x450.4x175
Sound Features MTS（BTSC）Without Base Stand (mm) 657.7x409.9x69.7
Scene Selecting（DeskTop mode and HangUp mode）Packaged Dimension (L*H*D)
FUNCTION Main Body (mm) 718X490X128
OSD Language English/Spanish/Portuguese Speaker Box
OSD Features Motion Bmp Style Base Stand
Source in OSD Source Bmp Icon Selecting Net Weight (Kg) 4.5
CC (Closed Caption) Yes (CC1~CC4,Text1~Text4; Gross Weight (Kg) 5.5
CC
(Closed
Caption)
Yes
(CC1 CC4,Text1 Text4;
Gross
Weight
(Kg)
5.5
CC OFF,CC ON,CC On Mute,) Container Loading
Clock/Sleep Timers Yes 20 feet 693
Wake up/Turn off time Yes 40 feet 1408
Wake up Source/Chanel Yes 40 feet high 1557
Watch Time Limit Yes ACCESSORIES
Startup Setting Yes(User can set a picture for turning on Logo display) Operation Manual English(Default)
Smart Switch Yes(Signal Auto Detecting and Changing Source) Remote Control For TV control (with two batteries)
Picture Freeze Yes Base Stand Integrated Packaging
DNR（Dynamic Noise Reduction）Off、Low、Middle、High Speaker Box Integrated
Hotel Menu In factory mode Wall Mount WMB233（Optional）
USB Connection Movie：Support H.264、RM/RMVB、XVID、FLV Others AV Adapter cable
DivX、MPEG2、MPEG4、VC1
Photo: Support JPEG、BMP、PNG；Drafted by:
Music: support MP3、WMA、M4A；
Design and specifications are subject to change without notice! Checked by:
App
roved b
y
:

TCL Multimedia Technology Holdings Ltd.
R&D Center
Alignment Procedure
MS82MT-AP/LA Chassis
Version: 1.0
Release Date: 2013-03-26
PREPARED BY: Kangwei DATE: 2013-03-26
APPROVEDBY: DATE:

MS82MT-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 ADC calibration menu 5
2.4 White Balance adjustment 6
3. Design Menu 7
3.1wayofaccessing 7
3.2 SHOP Menu 8
3.3 Other Menu 9
3.4 Service Menu 10
3.5 PARAM SETTING MENU 11
3.6 Hotel Menu 12
4.Stepsofdebugging 13
4.1 Device 13
4.2stepsofdebugging 13
4.3ADCcalibration 13
4.4WhiteBalanceadjustment 14
4.5WhiteBalanceadjustment(automatically) 16
5.ChiplistofsoftwareprogrammingbeforeSMT 16
6.Appendix 17
6.1 Software upgrading through USB 17
6.2 Check software version, release date and Project ID 18
6.3FAQ 20
History Description of major changes Release
Date
V1.0 2013-03-26
Chassis Model
FHD MS82MT-AP/LA L28E3500 etc

MS82MT-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
3
1. General Description
MS82MT-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 Main Menu (FMM) is divided into Factory Menu, Design Menu, Service
Menu and Hotel Menu. Factory Menu covers all indispensable functions during
manufacture such as White Balance Adjustment, ADC Calibration, USB Upgrading e.g.,
while the items under Design Menu 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, chassis name, software version, release date,
you can access to Service Menu. 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 Menu
is enabled (ON), press Return button of remote
control.
2. Factory Menu

MS82MT-AP/LA Chassis Aliment procedure
PRELIMINARY INFORMATION ----- SUBJECT TO CHANGE
4
2.2 Factory Menu
Factory Menu
Name Default Description Status
FAC
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 snow dot when no signal. The set will not
turn to standby even if the unavailability of signal;press
‘function’key to exit warm-up mode.
OK
ADC >> ADC calibration ( see details below) OK
WHITE
BALANCE >> White Balance Adjustment ( see details below) OK
SHOP 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 and ADC data. OK
SET FAC CH DO Preset the channel table of factory. Option: HZ, WX, EGYPT-EL,
ALGERIA 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
Power On
Mode 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 MS82S-AP and STB for
MS82S-LA
OK
USB
UPDATE Upgrade software. Please see details below. OK
SW NO. OFF Version information of Main Software OK
Project
Name Product model OK
SIACP
Version Serial port remote control protocol OK
Date Release date and time of main software OK