TCL C48P1FS Service Manual

TCL

SERVICE MANUAL

C48P1FS/MT56CT-AP

1. Caution…………………………………………………………………………

2. specification……………………………………………………………………

3. Alignment Procedure…………………………………………………………
4．Block diagram…………………………………………………………………
5．Scheme Diagram ……………………………………………………………

6. Troubleshooting………………………………………………………………

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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

RISK OF

ELECTRIC

SHOCK DO

NOT

OPEN.

SCHNEIDER ELECTRONICS GMBH-GERMANY

1. CAUTION

CAUTION:

Use of controls, adjustments or procedures other than those specified herein may result in
hazardous radiation exposure.

CA UTION : TO RE DUCE THE RIS K OF

CA U T IO N

RISK

SHOCK

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.

ELECTRI

NOT

OPEN.

ELECTR ICAL SH OCK, DO NOT REMOVE
COVER (OR BACK). NO USER SERVICEABLE
PAR TS INS IDE . RE FER SER VIC ING TO
QUALIFIE D SERVIC E PERS ONNEL.

dangerous

WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

2

2

SCHNEIDER ELECTRONICS GMBH-GERMANY

IMPORTANT SAFETY INSTRUCTIONS

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.

FOR YOUR PERSONAL SAFETY

1. When the power cord or plugis 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 ser vicing 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 car t 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.

3

3

SCHNEIDER ELECTRONICS GMBH-GERMANY

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.

a built-in

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 supportingstructure, 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.

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS

EXAMPLE OF ANTENNA GROUNDING AS PER

NATIONAL ELECTRICAL CODE

ANTENNA
LEAD- IN WIRE

GROUND CLAMP

ELECTRIC SERVICE

EQUIPMENT

NEC-NATIONAL ELECTRICAL CODE

ANTENNA DISCHARGE
UNIT (NEC SECTION
810-20)

GROUNDING
CONDUCTORS
(NECSECTION 810-21)

GROUND CLAMPS

POWER SER VICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250. PART H)

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 Ar ticle 820-40 of the NEC that provides

installer s
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 entr y 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.

4

4

SCHNEIDER ELECTRONICS GMBH-GERMANY

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 servicingto qualifiedservice 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.

off

IF THE SET DOES NOT OPERATE PROPERLY

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.

FOR SERVICE AND MODIFICATION

24. Do not use attachments not recommendedby the television set manufacturer as they may cause hazards.

25. When replacement parts 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.

5

5

PRODUCT SPECIFICATION RELEASE

Model: C48P1FS/MT56CT-AP/LVF480ND1L SJ9W01

Version：1.0 Issued On: 2015-12-28

Basic Information

Product Type

Chassis

CPU Quad Core A7 1GHz Mutilmedia Video/Audio Decoder

GPU Dual Core MALI450MP2 400MHz

OS Android 4.4

Memory/Flash 6Gb DDR3 / 4GB Flash

UI Style Zing TV+

Launcher HomePages Show

OSD Language English、Vietnamese etc.

TV System

AV System

Channels

Power Supply
Power Consumption（TV On）

Power Consumption（Standby）

Certification

ECO Energy efficiency

Internet Link

LED Indicator Status In The Center of Front,White in Standby

LED 2D FHD Android Smart DTV

MT56CT-AP

Home、Videos 、TV、APPS

PAL B/G、D/K、I；NTSC-M； DVI Video Format Up to XGA for HDMI-PC

DVB-T/T2/C HDMI Video Format up to 1080P

PAL、NTSC

0000-9999

AC 100V-240V 50/60Hz

115W

≤0.5W

CB

Yes Aspect Ratio 16:9

wireless WiFi Default Panel Active Size (inch) 48

Ethernet Network

Basic Function

Initial Setup

HDMI Auto Switch Auto、Close、Manual Life Time(Typ.) 30,000hrs

Channels Edit For Channel renamed

Input Settings For Input source device choice

Sleep Timer Yes

System Update Yes

T-Link（CEC）

Input Method Smart TV IME

MHL Yes

Teletext Yes

Audio Language/Nicam Yes

PVR/Timeshift Yes （Only for DTV Programme）

Programme Schedule Record/Reminder（Only for DTV Programme）

EPG Yes（Only for DTV Programme）
Subtitle Yes（Only for DTV Programme）

Yes，for user setting in TV first starting Viewing Angle (H/V) 178°/178°

Yes

USB Device Media Format

Music MP3

Picture JPEG/BMP/PNG/GIF

MPEG-(1/2/4)/H.264/H.263/DivX Dolby/AC3

Signal Format Capability

PC Compatibility Up to SXGA

Panel Specification

Backlight Unit

Panel supplier SAMSUNG

Display Resolution 1920*1080

Brightness (cd/m2) 280(type.)

Contrast Ratio 4000:1

Response Time (G to G) 8ms

Color 1.07B (Dithered 10bit )

Refresh Rate 60Hz

LED

Terminals

Picture

Picture Mode Standard\Dynamic\Natural\Movie\Personal

Screen Mode 16:9\4:3\14:9\Cinerame\Zoom etc.

Noise Reduction Low\Middle\High\Auto\Off

Backlight Adjustable Yes (0~100)

Color Temperature Normal/Warm/Cool/Customer

Gamma Adjustable -4 to 4

Dynamic Contrast Yes

Overscan Yes

Picture Freeze Yes

Game Mode Yes

Film Mode Yes

Picture Reset Yes

Sound

Speakers Integrated speakers (Bottom side)

Audio Power Output（THD=7%） 2×8W

Auto Volume Control On / Off

Sound Preset Standard\Music\Movie\Clear Voice\Personal

Sound Control

TV Placement

Audio Delay

Sound Bluetooth

Design and specifications are subject to change without notice!

Five band equalizer adjust in Personal mode

Desk top / Wall mount

Yes

Yes,for External Bluetooth speaker/soundbar

Pre-Installed Application List

YouTube Push Popular VOD posters to Homepage Operation Manual English(Default)

Golive 3.0 Lots of Global Live TV channels show Remote Control and batteries RC311(with two batteries)

Miracast

App Store 3.3 Special App Store available for download

Browser Webpage Browser

TV Tweets a Social App

Deezer Global Online Music Streaming service

Mediacenter Media/Music play for USB Device

Message Box Messages push

Weather forecast Showed in Homepage

E-Sticker as some function demo in Shop mode

E-Manual Some general basic function introduction

nScreen

Wireless Mirroring connecting,to deliver audio

and video content from smartphone to TV

Connect Mobile phone to TV sets and control

the TV like Remote using Phone;

Push media file in Phone to TV Display and

Enjoy big screen picture quality.

Essential Accessories（Default）

Base Stand

AC power cord 1 pcs

Integrated Packaging

Mechanical ID Picture

Mechanical Key Specification

L1（mm）

W1（mm）

H1（mm）

L2（mm）

W2（mm）

H2（mm）

Net Weight With Stand（Kg）

Net Weight Without Stand（Kg）

Gross Weight With Packaging（Kg）

1082.9

77.6

631.3

822.7

212.5

675.2

11

10.8

15

Diagonal size（cm）

Slim Edge Design---Up（mm）

Slim Edge Design---Bottom（mm）

Slim Edge Design---L&R（mm）

Carton Dimensions LxWxH（mm）

Container Loading---20 feet（pcs）

Container Loading---40 feet（pcs）

Container Loading--40 feet High（pcs）

VESA Mounting Dimensions LxH（mm）

Drafted by: Approved by:

121

12.2

20.9

15

1220*210*806

96

206

309

200x200

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

TCL World-Wide R&D
FPD CENTER

Factory Test & Alignment Specification V1.0

----MT56-AP

PREPARED BY : FENG LIU DATE : 2015-02-13

APPROVED BY: DATE :

1

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

Content

1. General Description .............................................................................................................................. 3

2. Factory Menu ......................................................................................................................................... 5

2.1 Accessing Way ................................................................................................................................... 5

2.2 Factory Menu ...................................................................................................................................... 6

2.3 White Balance Menu .......................................................................................................................... 7

3. Design Menu .......................................................................................................................................... 7

3.1 Accessing Way ................................................................................................................................... 8

3.2 Design Menu ....................................................................................................................................... 8

3.3 Other Menu ......................................................................................................................................... 9

3.4 Service Menu ...................................................................................................................................... 9

3.5 Param Setting Menu ........................................................................................................................ 10

4. Test & Alignment ................................................................................................................................. 11

4.1 Pre-Conditions and Power Supply Check .................................................................................... 11

4.2 Project ID Modification .................................................................................................................... 11

4.3 Function Test .................................................................................................................................... 12

4.4 LAN/WLAN Test ............................................................................................................................... 13

4.5 SHOP INIT ........................................................................................................................................ 13

Appendix ...................................................................................................................................................... 14

Appendix 1: Warm-up Test .................................................................................................................... 14

Appendix 2: Software Upgrade ............................................................................................................. 15

Appendix 3: Network Connection ......................................................................................................... 17

Appendix 4: White Balance (WB) Adjustment .................................................................................... 18

2

Class

Item

MT56-AP

Input

&

Output

RF Input

(PAL/DVB/DVB-T2)

CABLE&ANTENNA

HDMI

(480i/p, 576i/p, 720p up to 1080i/p, with
HDCP)

HDMI*3

VGA

1

VGA Audio

Shares audio sockets with Audio Input

Component Audio Input

RCA*2 (L+R)

AV Input

RCA*1

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

1. General Description

The information contained in this document is proprietary to TCL SZ FPD lab and shall
not be disclosed by the recipient to the third person without the written permission of
the team leader or GM of R&D.

MT56-AP chassis are designed for Asia & Pacific (AP) market Ready for Smart TV. It
features by its high integration, easy debugging (ADC adjustment free) 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 customers.

Note: Factory Main Menu (FMM) is divided into Factory menu and Design menu. Factory
Menu covers all indispensable functions during manufacture such as White Balance
Adjustment, SHOP etc., while Design Menu includes Service Menu, Hotel Menu, Param
Setting, Other Setting etc. Some settings like Param Setting and Other Setting 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, project name, Hardware, 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.

The main chip is from REALTEK and supports below features matrix:

3

Input

&

Output

Audio Out

RCA*2

USB

(Video, audio and picture)

USB2.0*2

MHL

Shares with HDMI 1

PCMCIA

1

SPDIF output

RCA*1

NETWORK

RJ45 Socket

Functions
Internet



WIFI



Others

Serial connector

Multiplexing VGA

IC Details

&

Position

Main program

UF01

(Support online upgrade)

Mboot

UF01

(Support online upgrade)

EEPROM

U702

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

Note:

 The software boot for U702 can be programed by Flash Tool.exe.
 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.

 Once in a while, the software of main board may be upgraded. Please pay attention to

use the latest software before production.

4

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

2. Factory Menu

Factory Menu is mainly used for factory production and satisfies various demands of customers. It covers
all indispensable functions during manufacture such as Warm up, White Balance, Shop, NVM Reset,

Power on mode, USB Clone etc.

2.1 Accessing Way

a. When the Factory hotkey item of Factory Menu is disabled (OFF), press Menu button of remote

control, then select Settings/Picture, make sure the cursor stop on Contrast item submenu. Finally,
press 9, 7, 3, 5 consecutively.

b. When the Factory hotkey item of Factory Menu is enabled (ON, you can see the flashing Factory

Captions Info on the lower left corner), press Back button of remote control.

Press RCU “OK” key to enter the submenu.
Press RCU “Right” or “Left” key to change the values.
Press RCU “Right” or “Left” key run the function.
Press RCU “Back” or “Menu” key exit the Factory menu.

Factory Captions Info:

While “FactoryKey” is enabled, there is some toggled display information relative to MV, SV, ID, MID, to
facilitate 100% quick screening without accessing to whatever else menu:

 P (Production/Factory mode flag)
 MV (Mboot SW Version)
 SV (Main SW Version)
 ID (Project ID)
 MEMC

5

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

Factory Menu

Name

Default

Description

Factory hotkey

OFF

Factory Menu shortcut button switch
The item must be disabled (OFF) after production

Warm up

OFF

Aging mode, mainly used for factory aging.
Press “Menu” key on keyboard to exit the burning mode.

See Appendix 1 “Warm-up Test”

White Balance

..

White Balance Adjustment ( see details below)

Shop

>

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.

NVM Reset

>

Restore default value except White Balance, ADC data.

Power On Mode

STANDBY

ON: the set will power on after switching on power.
STANDBY: 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
STANDBY

USB Clone

..

Select to choose the things you want to clone.

Preset Factory

Channel

..

Preset the channel table of factory. To preset the channel table of certain factory,
first, choose the corresponding factory name. Then press OK button of remote
control and wait OK is displayed on the screen.

DeviceID test

DO

Test device ID.

Other

Project Information

ADC

..

Analog To Digital Converter

SW NO.

device info

Version information of Main Software

Project Name

device info

Product model

Date

device info

Release date and time of main software

 MID

2.2 Factory Menu

6

White Balance

Name

Default

Description

Source

ATV

Press RCU left/right key to change the TV source.

Color

normal

Select color temperature you intend to adjust Three groups of color
temperature: normal, Cold, Warm are available.

R gain

0-255

Gain of R channel ( cannot be changed after auto calibration)

G gain

0-255

Gain of G channel ( cannot be changed after auto calibration)

B gain

0-255

Gain of B channel ( cannot be changed after auto calibration)

R offset

128

Disabled, keep the default value

G offset

128

Disabled, keep the default value

B offset

128

Disabled, keep the default value

White Balance

init

>

White Balance Initalization. Before WB adjustment, this item should be
executed.

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

2.3 White Balance Menu

Press the button on remote control to select certain item and OK to adjust White Balance.

3. Design Menu

Design Menu includes Factory Menu, other,
Service Menu, Param Setting, Hotel Menu.

Some settings like Param Setting and Other
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, project 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.

7

Design Menu

Name

Default

Description

Design Mode

hotkey

OFF

Design Menu shortcut button switch
The item must be disabled (OFF) after production

Factory menu

..

Access to Factory Menu

Other

..

The item includes a number of functions offering convenience for R&D engineer
to solve problems.

Service menu

..

Provide many useful information for after-sale service
Please reference to SERVICE MENU submenu

Param setting

..

Include sound setting,picture setting, SSC, DBC, CI Card, Overscan, WIFI
CHECK and USB FILE. Please reference to PARAM SETTING submenu.

Hotel menu

..

Include special functions which bring benefits to hotel management. The item is
accessible only when Hotel Service On/Off item is enabled (ON).

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

3.1 Accessing Way

a. When the Design mode hotkey item is disabled(OFF), press Menu button of remote

control, then select Settings/ Picture, make sure the cursor stop on Contrast item
submenu, press 1, 9, 5, 0 consecutively.

b. When the Design mode hotkey item of Design Menu is enabled (ON, you can see the

flashing Factory Captions Info on the lower left corner), press Back button of remote
control.

Press RCU OK key to enter the submenu.
Press RCU Right/Left key to change the values.
Press RCU Right/Left key run the function.
Press RCU Back/Menu key exit the Factory menu.

Design Captions Information is the same to Factory Captions Info.

3.2 Design Menu

8

Other Menu

Name

Default

Description

TestPattern

>

Switch the TV source into test pattern, and restarting TV is the only way to excit.

UartEnable

OFF

The switch of VGA serial port information.
The item must be disabled (OFF) after production.

DeviceID

..

Show the device id of TV.

MAC

..

Show the MAC address of TV.

HuanID

..

Show the Huan id of TV.

ClientType

..

Show the Client type information.

Service Menu

Name

Default

Description

Project ID

1

Select project parameters, depending on the BOM description.

Hardware

MT5655

mainboard Chassis

Software

V8-MT56551-LF1V003

version number of Main Software

Bootloader

XXX

version number of bootcore

USB Update

..

Update the software by USB disk,
detailed description see Appendix 2 “Software Update”

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

3.3 Other Menu

The Other Menu contains some TV basic information, with which we can check the TV setting before
production.

3.4 Service Menu

Service Menu contains some basic information of the device, such as Project ID, Hardware, Software
version, USB Update etc. This menu is especially useful for after-sale service.

9

Param setting Menu

Name

Default

Description

Sound Setting

..

Set sound mode, balance, sound scene, etc.

Picture Curve

..

Exclusively used by R&D

Picture Setting

..

Set picture mode, brightness, contrast, backlight, etc.

SSC Adjust

..

Spread Spectrum clocking.
Exclusively used by R&D.

DBC

..

Dynamic Backlight Control.
Exclusively used by R&D.

CI Card

ON

Common interface Card switch.

WIFI CHEAK

..

Check the WIFI link

USB FILE

..

Access the USB file

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

3.5 Param Setting Menu

Param Setting menu contains Sound Setting, Picture Curve, Picture Setting, SSC, DBC, CI Card,
Overscan, WIFI CHECK and USB FILE. But it is exclusively used by R&D engineer, anyone else shouldn’t
change the settings in the menu.

10

Position

Value

Test Point

P103

12V±10%

12V

LDH1

5V±5%

+5V

P103

3.3V ±1%

3V3SB

UD33

3.3V ±1%

3V3

LDJ1

1.5V ±1%

DDR_1V5

LDB0

1.2V±1%

CORE_1V2

UD18

1.8V ±1%

1V8

UT2

3.3V ±1%

TUNER_VCC

U201

3.3V ±1%

3V3_DEMO

L201

1.1V ±1%

NC

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

4. Test & Alignment

According to the requirement of order, we suggest take the below steps to finish the appropriate settings.

Note:

 All tests and measurements mentioned hereafter have to be carried out at a normal mains voltage

(100 ~ 240 VAC)

 All voltages have to be measured with respect to ground, unless otherwise stated
 All final tests have to be done on a complete set including LCD panel in a room with temperature of

25+/-7°C

 The Picture Performance assessment such as White Balance (luminance and colour temperature)

has to be performed into subdued lighted room after at least 60min of warm-up in order to avoid any
temperature drift influence (colorimetry vs time).

4.1 Pre-Conditions and Power Supply Check

Before power-on, please check the board according to the relevant block diagram and circuit diagram,
make sure that no serious issue or mistake can destroy the board. For example, the output of DC/DC and
LDO should not be shorted to ground.
Supply a suited voltage and power-on, then check the voltage according to the relevant block diagram,
circuit diagram and voltage spec, the error should be less than 5%, for example, the voltage for main chip
(+3V3, +2.5V, VDDC1V15, 1V5_DDR, etc.), the voltage for TUNER (TU_3V3), the voltage for amplifier
(AMP_VCC), etc.

4.2 Project ID Modification

There are different ID stored in the EMMC depending on different Panels settings and Model features, but
there’s only one key branching Project ID able to ensure normal display. And when you power on the TV
set, you should make sure the Project ID is accord with the BOM description. If not, you need to modify

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