TCL 19P11E MT23L-AP User manual

TCL
SERVICE MANUAL
19P11E MT23L-AP
1. Caution…………………………………………………………………………2
2. Specification …………………………………………………………………6
3. Alignment Procedure…………………………………………………………7
4. Scheme Diagram…………………………………………………………… 19
5. PCB Layout …………………………………………………………………26
6. Explode Diagram……………………………………………………………30
7．BOM List………………………………………………………………………31
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 INS IDE . 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
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 Warnings 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: V1.0Issued Date: 2011.05.31
PICTURE
Category LCDTV
Naturalight Technology Yes (Natural Light Engine‖)
Dynamic Contrast Yes
Color Temperature Warm / Normal / Cold SIGNAL FORMAT CAPABILITY
Backlight Adjustable Yes Component Video Format Y,Pb/Cb,Pr/Cr:up to 1080P
Scale Mode Full, Wide Screen,Subtitle,4:3 DVI Video Format Up to XGA for HDMI-PC
Picture Effect User, Bright, Standard and Soft HDMI Video Format up to 1080P
Film Mode (3:2 pull down) AUTO PC Compatibility Up to SXGA
TERMINALS
Audio/CVBS Input (Composite) 2 R/L+2 Video: AV1, AV2(Side)
S-Video Input --
Audio Input for S-Video --
Comb Filter 3D YPbPr Input 1
Dynamic Noise Reduction 3D for SDTV Audio Input for YPbPr 1
Adaptive Deinterlacing 3D for SDTV YCbCr Input Share with "YPbPr"
Blue Stretch Yes Audio Input for YCbCr Share with Audio for "YPbPr"
Black Stretch Yes VGA Input(RGB) 1 (D-Sub,15 Pins)
Motion Compensation Yes Audio Input for RGB Share with Audio for "YPbPr"
DLTI Yes DVI --
DCTI Yes Audio Input for DVI --
Dynamic Skin Correction Yes HDMI 1
Audio/CVBS Output (Composite) 1 (R/L+CVBS) (RCA)
PANEL SPECIFICATION SPDIF Output --
Back light Unit LED Headphone Output --
Panel supplier CMO RF Input(Antenna) 1 (IEC Type)
Aspect Ratio 16:9 USB 1
Panel Size (inch) 18.51" BASIC INFO.
Display Resolution 1366*768 TV System PAL/SECAM B/G,D/K,I ; NTSC-M
Brightness (cd/m2) 250 AV System PAL,NTSC,SECAM
Contrast Ratio 1000:1 Channels 100(1~100)
Response Time Tr/Tf 3ms Chassis MT23L-AP
Viewing Angle (H/V) 170°/160° Certification --
LED Life Time 30,000hrs Power Supply AC 100V-240V 50/60Hz
Color 16.7M Power Consumption-TV on 20W
SOUND Power Consumption-Standby ≤1W
Speakers Integrated speakers (Bottom side) Default Color of Front Cabinet Ribbon Design‖
Audio Power Output 2×5W Keyboard Position Bottom right of front
Smart Volume Yes Base Stand Detachable Yes
Sound Effect Standard,News,Movie,User Unpackaged Dimension for Main Body (L*H*D) (mm)
Sound Control Volume, Balance, Bass,Treble, With Base Stand (mm) 467.3Lx352.2Hx140.5D
Without Base Stand (mm) 467.3Lx317.8Hx42.2D
Packaged Dimension (L*H*D)
Main Body (mm) 547(L)x149(W)x425(H)
Speaker Box --
FUNCTION Base Stand Packaged with Main Body
OSD Language1 English/Thai/Vietnamese/Russian Net Weight (Kg) 3.2
OSD Language2 English/French/Arabic/Farsi Gross Weight (Kg) 3.69
OSD Main-Menu Features Motion Bmp style Container Loading
Sleep Time Select Yes 20 feet (4×39+10)×5=830
Watch Time Limit Yes 40 feet (80+12×20+3×7)×5=1705
Listen Only Yes (Listening to Music without picture) 40 feet high (80+12×20+3×7)×6=2046
Demo Function Yes ACCESSORIES
DNR Yes Operation Manual English(Default)
Nicam Yes(MTS) Remote Control For TV control (with two batteries)
USB Connection Yes.（Only for mp3 Player and JPG Photo Dispaly）Base Stand Integrated Packaging
Hotel Menu Optional (in factory menu) Speaker Box Integrated
Wall Mount NO, Not support
Others AC Power cord
Design and specifications are subject to change without notice! Page 1 of 1
Model: L19P11E/MT23L-AP/CM2
Approved by:
Surround on/off, Scene Mode Selecting（Desk and Wall
Mode）
Picture Enhancement
Sound Features
Drafted by:

Factory Alignment Specification for MT23L(H)-AP/LA
Page 1 of 12
TCL GPC R&D
FPD CENTER
Factory Alignment Specification
Version
˖
V0.1
MODEL
˖
MT23L-AP/MT23L-LA: L19P11E,L19P21E,L24P21E,etc.
MT23H-AP/MT23H-LA: L32P20, L42P20, etc.
PREPARED BY : Reft Zhang DATE : 2010-07-08
APPROVEDBY: DATE:

Factory Alignment Specification for MT23L(H)-AP/LA
Page 2 of 12
Disclosure
The information contained in this document is proprietary to TCL SZ FPD lab and shall not be
disclosed by the recipient to third persons without the written permission of the team leader or
GM of R&D.
Revision History
Status, Ver Date, Drafter Description of changes
0.1 08/07/2010 Initial release

Factory Alignment Specification for MT23L(H)-AP/LA
Page 3 of 12
The main chip is from MediaTek (MT8223L and MT8223H) and supports input or output as
follows:
MT8223L MT8223H
1 analog RF 1 analog RF
1 AV input (CVBS + L/R) 1 AV input (CVBS + L/R)
1 Component with L/R 1 Component with L/R
1 VGA + audio input 1 VGA + audio input
1 HDMI 1.3. with HDCP 1 HDMI 1.3. with HDCP
Back
Connectors
1 AV-out with L/R 1 AV-out with L/R
1 HDMI 1.3. with HDCP 1 HDMI 1.3. with HDCP
1 USB input 1 USB input
1 AV input (CVBS + L/R) 1 AV input (CVBS + L/R)
Side
Connectors
1 Headphone output
Other Serial connector( Location P001) Serial connector( Location P001)
Serial connector Definition:
Pin1:VCC Pin2:RXD Pin3:TXD Pin4:GND
More relevant details are listed into the Spec.
INFO:
ªAll tests and measurements mentioned hereafter should be carried out at a normal mains
voltage (100 ~ 240 VAC)
ªAll voltages should be measured to ground, unless otherwise stated
ªAll final tests should be done on a complete set including LCD/LED panel in a room with
temperature of 25+/-7°C
ªThe White Balance (color temperature) has to be performed in subdued lighted room after at
least 1 hour of warm-up/burn-in.
1. Electrical Assembly Alignment
1.1. Check DC Voltage
Before Power On the chassis, please check and make sure that U103, U104, U105, U106, U108,
U502,etc outputs are not shorted to ground.
Check supply voltage, basing on the table below:
Specifications
Description Test
Location Min Type Max Unit Remark
24V 24.0 V
+12V 12.0 V Q101 DC-DC
+5V 5.0 V U108 DC-DC

Factory Alignment Specification for MT23L(H)-AP/LA
Page 4 of 12
AVDD3V3 3.3 V U103 LDO
+5V_TUNER 5.0 V U502 LDO
AVDD1V25 1.25 V U105 LDO
SDR_V 2.55 V U104 LDO
VCCK 1.15 V U108
1.2. Download SW
Download main SW using MTK tool. See Appendixn“How to download main SW”.
PS: If the main software pre-load before SMT, this step can be omitted.
IC must be pre-load SW before SMT as follows˖
Location Content Remark
U002 Main program and VGA EDID Support ISP
U003 EEPROM data and HDMI KEY&EDID Support ISP
Updating main SW can also use USB device. See Appendixo“How to use USB device to
update main SW”.
1.3. Check or Change Project ID
Each TV model has only one Project ID in main SW which is stored in EEPROM. See
Appendix
p
“Project ID”.
If you can see display on screen, enter factory menu to check or change ProjectID as follows:
“Factory menu” Ö”DesignMenu1” Ö”ProjectID”.
If no display on screen, ProjectID can be changed by MTK Tool.
Name EEP Address Value(hex)
PROJECT_ID 0xC7B See Appendix
p
PROJECT_ID_BAK 0xDB7 See Appendix
p
PROJECT_ID_BAK1 0xDB5 See Appendix
p
Note: The Project ID cannot change after service or repair TV set.
1.4. Functional Test
Once the boards (chassis, KB, IR, PSU…) and the panel are well interconnected, connect all
external generator devices to relevant inputs/outputs below according to their respective test
patterns format and check picture content and sound quality accordingly:
Source Test signal (generator) Test pattern (format/image)
Analog Tuner RF cable Full Band (VHF/UHF) + CATV
Composite(CVBS) Chroma/Fluke PAL Half Color & Grey bars
VGA(PC) Chroma/QuantumData 1024x768@60Hz