TCL 32HW3325, L32B2810 Schematic

TCL

SERVICE MANUAL

L32B2810/MT31BP-AP

1. Caution…………………………………………………………………………2

2. specification……………………………………………………………………6

3. Alignment Procedure…………………………………………………………7

4．Block diagram…………………………………………………………………1 5．Scheme Diagram ……………………………………………………………

6. Troubleshooting………………………………………………………………2 ([SORGHGUDZLQJ

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 ELECTR IC

SHOCK DONNOTNOPEN.

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

O K

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.

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.

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.

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 ELECTRICALCODE

ANTENNA DISCHARGE UNIT (NEC SECTION 810 20)

GROUNDING CONDUCTORS (NECSECTION 810 21)

GROUND CLAMPS

POWER SER VICE GROUNDING ELECTRODE SYSTEM (NEC ART 250 PARTH)

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.

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.

第 1 页共27 页

TCL 集团多媒体电子全球制造中心 IPC 设计中心

文件编号：IPC/SJ/FK02-2013 序号：

Alignment Procedure

VERSION：V0.92

MＭ３１ＢＰ Series

PREPARED BY : ZHANGLI DATE : 2014-05-07

APPROVED BY : DATE :

TCL World-Wide R&D

FPD CENTER

Test & Alignment Specification (TAS)

MT31BP-AP 调试说明 (v0 92).docx

for MT5531

EU/AU/RU Series

Version 0.92

Î MT31L: Low Cost CCFL & LED Platform

Î MT31D: Low Cost CCFL & LED Platform (for E3000 ID only)

Î MT31B：Basic Entry Level LED Platform

Î MT31BT/LT/DT: DVB-T2 Chassis LED Platform

Î MT31BS/LS: DVB-S2 Chassis LED Platform

Î MT31LB: DVB-T2 Chassis LED Platform for TOT

MT31LB: Add MT31BP information of LCD

Page 1 of 26

MT31BP-AP 调试说明 (v0 91).docx

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

Version Issue Date Description of changes

This is 1st Draft version

v0.10

v0.20

2013-01-06

2013-03-01

· Add MT31B For Entry Level LED

· Add MT31L For Low Cost CCFL & LED Platform

· Add MT31D For Low Cost CCFL & LED Platform base on E330

·Improve header information on MT5531

.Change Power Mode to Boot

v0.30

v0.40

v0.50

v0.60

v0.70

v0.80

v0.90

2013-03-18

2013-04-12

2013-04-18

2013-04-23

2013-05-23

2013-06-11

2013-07-12

. Delete offsets: +0.002 for “x” and +0.012 for “y

. Add Project White Balance Information

. Add MAC upgrade method by USB

. Upgrade MTK Tool for MT31.

. Mr.Christian upgrade information

.Add PQ engineer Note information

.Add project White Balance Information

.Add HDCP upgrade method.

.WB adjust need to fix default G Gain

.The signal level check has been down in R&D, Factory should not adjust the

scaling Brightness , scaling contrast and scaling saturation.

.Add MT31BT/LT/DT DVB-T2 function chassis；

.Add MT31BS/LS S2 DVB-S2 function chassis

.Add AU/RU Market project information

.Improve MT31 function information for EU / AU / RU

.Add EU/AU project white balance information

.Add project White Balance Information

V0.91

V0.92

2013-09-02

2014-05-07

Add MT31LB DVB-T2 for TOT information.

Add MT31BP information of LCD

Page 2 of 26

MT31BP-AP 调试说明 (v0 91).docx

These chassis are designed for European LCD TV markets with MPEG4 for both TCL/THOMSON brands. The

main chip is from Mediatek (MT5531 series) and support below feature matrix:

Class Item

MT31B/L/D MT31BT/LT/DT MT31BS/LS MT31B/L/D MT31LB

Input ATV

EU AU RU

( PAL B/G D/K I,

Output DTV

SECAM B/G D/K

L/L)

MPEG-2, MPEG-4 DVB-T2 DVB-S2 DVB-T2

HDMI - CEC

(480i/p, 576i/p,

720p up to

1080i/p, compliant

v1.4a with HDCP)

VGA

VGA/CMP audio

CMP

(YPrPb can

support from 480i

up to 1080p,

audio)

√ √ √ √ √

DVB-T/C DVB-T/C DVB-T/C DVB-T/C DVB-T/C

MT31B/D:2

MT31L:1

1 1 1 1 1

MT31B/D:2

MT31L:1

MT31B/D:2

MT31L:1

MT31B/D:2

MT31L:1

SCART1

(CVBS & RGB

&YC, audio)

Side AV or Back

(CVBS, audio)

USB（2.0）

√ √ √ N/A N/A

N/A N/A N/A 1 N/A

1 1 1 1 1

Picture,

Video,

Audio

Playback

Picture, Video,

Audio Playback

Picture,

Video,

Audio

Playback

Picture,

Video,

Audio

Playback

Picture, Video,

Audio Playback

Page 3 of 26

MT31BP-AP 调试说明 (v0 91).docx

Functions

SCART1 output

(CVBS, audio)

AV output

(RCA)

(CVBS, audio)

Headphone

output

SPDIF output

RJ-45

MEMC

OAD

CI+1.3

WIFI Ready

DIVX

DLNA (DMP)

√ √ √ N/A N/A

N/A N/A N/A √ N/A

√ √ √ √ N/A

Coaxial Coaxial Coaxial Coaxial Coaxial

IP Return IP Return IP Return N/A N/A

N/A N/A N/A N/A N/A

√ √ √ √ √

√ √ √ N/A √

N/A N/A N/A N/A N/A

N/A N/A N/A N/A √

N/A N/A N/A N/A N/A

Internet

Audio Return

Channel

Serial connector

VGA connector

Others

I2C connector of

MEMC module

N/A N/A N/A N/A N/A

√ √ √ √ √

N/A N/A N/A N/A N/A

P1000 P1000 P1000 P1000 P1000

N/A N/A N/A N/A N/A

Class Item MT31B MT31L MT31D

IC Details

Position

Main SW BIN image

(NOR 64Mb Flash)

System Memory

HDMIx Switch

EDID BIN image

VGA

EDID BIN image

U702 U702 U702

Integrated to Flash Integrated to Flash Integrated to Flash

Embedded to SoC

at Firmware On-Power

at Firmware On-Power at Firmware On-Power

Embedded to SoC

at Firmware On-Power

Embedded to SoC

at Firmware On-Power

·MT5531 FLASH Size and Key Blocks Location’s Assignment

Page 4 of 26

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age 5 of 26

MT31BP-AP 调试说明 (v0 91).docx

1. PCB/SKD Assembly: Test & Alignment

1.1. Pre-Conditions and DC/DC Check

Before power on, please check the board according to the relevant block diagram and circuit diagram, and 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 specification within 5% margin.

For example, check SoC voltage (AV3V3, VCCK-1V2, etc.), DDR voltage (DDRV) , amplifier voltage (Main_Power), etc… Only the standby voltage is necessary if there is no software in the flash.

SW Image download

1.2.

Download the latest release SW from below FTP server:

- Link:xxxxx

- Username: xxxxx

- Password: xxxxx

- Folder: xxxxx

See Appendix

 OAD Transport Stream Image

To manage quicker mass reflashing, a predefined OAD DVB-T channel (freq:850MHz / bandwidth:8MHz) is

embedded to SW core and only available into Factory mode. Some licensed IBL tools ('xxx2lli.exe', 'lli2dsm.exe',

dsmmerge.exe, …) from Intellbyte Inc. (http://www.intellibyte.com/

SSU TS. Over some predefine settings such as repeated datablock insertion, null packets size, … (controllable in

configuration file), here below are mandatory OUI entries structure to prepare DSM-CC carousel image format:

⑴ “How to upgrade FLASH SW using MTK tool” ⑵ “How to upgrade FLASH SW using USB”

) might be necessary to create appropriate DVB

OUI Entry MT31L MT31B MT31LB

CUST_OAD_OUI

CUST_OAD_HW_MODEL

CUST_OAD_HW_VERSION

CUST_OAD_SW_MODEL (x) 0x3101 0x3102 0x3102

CUST_OAD_SW_VERSION (yyy) 0x0xxx 0x0xxx 0x0xxx

Note ⑴: SW Entry are referring to following PKG image file name “V8-0MT310x-LF1Vyyy.pkg”

⑵

Note

: See enclosed necessary Data Broadcast Carousel configuration file format det ails (DBC)

408BF6 408BF6 408BF6

0x5881 0x5881 0x5881

0x0001 0x0001 0x0001

Page 6 of 26

TCL_HW5881.pdf

MT31BP-AP 调试说明 (v0 91).docx

To build an OAD TS, it’s necessary to create a temporary common and interchangeable DSM file format using

below command and arguments:

‘bin2dsm.exe -v -v -v -m0,0,"TCL_HW5881",0 -n200 -z102400 -nz -o%FILE%.dsm -h"OUI=CUST_OAD_OUI

model=CUST_OAD_HW_MODEL version=CUST_OAD_HW_VERSION vm=0xffff" -s"OUI=CUST_OAD_OUI

model=CUST_OAD_SW_MODEL version=CUST_OAD_SW_VERSION vm=0xffff" %FILE%.pkg’

Then, OAD TS can be completed using below command and arguments:

‘dsmsectn.exe -v -dvbssu -mpegts -patpmt -nit_ter -sdt -o%FILE%.ts -gTCL_HW5881.dbc %FILE%.dsm’

For more robustness, TS can be played with following presets such as modulation:QAM-64, guard interval:1/8,

coding rate:2/3 to ensure ~22Mbps.

OAD reflashing process is managed within 4 steps operation: multiplex detection, DVB transfer, flashing and

warm-start.

See Appendix

⑶ “How to upgrade FLASH SW using OAD”

UART & IR Parser

1.3.

To use both UART and/or IR parser, TV has to be set in Factory mode with its VGA port well connected to

suitable UART device or an IR emitter device correctly facing up TV (see below “Product Assembly - section 2.0”

how to activate “Factory key”).

The SoC’s RS232 mode is automatically enabled at power-on and doesn’t require any command initialization

frame. <0x30 0x30 0x30 0x2E 0x30 0x65 0x30 0x74 0x30 0x0D 0xE2> from host to TV.

So correctly setup UART parser engine for further serial communication, it’s necessary to send following

command frame <0xAA 0x06 0x10 0x01 0xA7 0xEF> within following COM presets 115200/8/n/1; “PS” caption

might be toggled and displayed on bottom left screen (“S” like Serial) if successfull.

To communicate with TV depending on SIACP revision layout implementation, you may need to fulfill UART/IR

commands protocol and format described on enclosed SIACP requirements document (rev. v5.9).

SIACP_V5.9.pdf

1.4. ProjectID Modification

There are different IDs stored into system memory depending on different Panels settings and Models features,

but there’s only one key branching ProjectID that includes all. So, it’s not recommended to modify PaneID with

Hyper terminal as other ID features may not change!

To modify ProjectID, you need to go through “Factory menuÆOtherÆProject infoÆProject ID”, then spin left

or right with RCU “◄/►” key” keys to suitable ID (Project name is dynamically refreshed).

See Appendix

⑷ “How to change ProjectID with RCU”

Page 7 of 26

MT31BP-AP 调试说明 (v0 91).docx

Here below is none exhaustive ProjectID table for reference. Project list and all relative information are

dispatched and updated as a new firmware package is released.

Project Name Project ID Panel

32T3520 配 MT31BP 项目 109 32B2800 配 MT31BP 项目 110 32B2610S 配 MT31BP 项目 111 32B2600 配 MT31BP 项目 108 32B2500B 配 MT31BP 项目 112 23E4200 配 MT31BP 项目 113 24T3520 配 MT31BP 项目 114 24B2500 配 MT31BP 项目 115 28T3520 配 MT31BP 项目 116 28B2500B 配 MT31BP 项目 107 24B2800 配 MT31BP 项目 117 32T3520 配 MT31BP 项目 109

PANEL_CS2_ST3151A04

PANEL_SS_LSC230AN0

PANEL_AUO_M240HTN01

PANEL_CM5_V236BJ1_P03

PANEL_CS5_ST2751A01

PANEL_CM1_ V236BJ1_LE2

PANEL_CS2_ST3151A04

1.5. Functional Test

Once the boards (chassis, KB, IR, PSU…) and the panel are well interconnected, plug all suitable signals

generator to relevant below inputs/outputs using respective test patterns format to check picture/sound quality:

Source Test Signal Test Pattern

Analog /Digital Tuner

(VHF/UHF & CATV)

Satellite Tuner

(only for MT31BS)

- DiSEqC v1.0 (A, B, C, D) and Tone

Burst (A, B)

- Double LNB frequency (band change

by 22KHz Tone)

RF cable generator

Compliant DVB-S/S2

source from generator or

dish antenna with switch

2D - Movie 1280x720

2D - Static Picture 1920x1080

1. Frequency Range: full band

2. Standard: PAL / SECAM

3. DVB-T/C DVB-T2

2D - Movie 720x576

1. Frequency Range: 950MHz..2150MHz

2. Symbol Rate Range:

DVB-S 1..30MHz (for QPSK)

DVB-S2 1..45MHz (for QPSK)

1..30MHz (for 8PSK)

3. LNB Voltage Range:

Vertical 12.85V..14.2V

Horizontal 17.6V..19.5V

4. 22KHz Tone Range

Frequency 20.5KHz..23.5KHz

Amplitude 400mV..900mV Current ≥400mA

Page 8 of 26

MT31BP-AP 调试说明 (v0 91).docx

SPDIF (optical / cinch)

PCMCIA

SCART/AV IN via adaptor on MT31B/T

(CVBS & RGB & S-VIDEO)

SCART/AV OUT via adaptor on

MT31B/T

(CVBS & Audio out)

(VGA)

CMP via mini jack adaptor on MT31B/T

(YPrPb & Audio)

HDMI

RJ-45

Headphone

Loud Speakers / Enclosures

Suitable Audio Amplifier PCM or Dolby D+

CI CAM card adaptor Conax, Irdeto, Viaccess, …

Chroma/Fluke generator

Monitor Suitable channel

Chroma/QuantumData

generator

Chroma/QuantumData

generator

Video & Audio with beyond

HDMI 1.4a and HDCP

compliant DVD/BD player

MHL up to 720p

ARC PCM or Dolby D+

CEC

IP Return N/A

RF signal N/A

RF signal Suitable channel

PAL Half Color & Gray bars 720x576

Half Color & Gray bars

WXGA - 1368x768@60Hz

Half Color & Gray bars

1920x1080i@60Hz

Half Color & Gray bars

2D - Movie 1920x1080@p24Hz

One Touch Play/ Routing Control/ Sys Standby/

Sys Info/ Give Device Power Status/ Pass

Through/ System Audio Control/

Audio Return Channel

Picture/Video formats and Audio tones can be changed by the factory according to their own standard and

broadcasted signals (ie: 1KHz & 3KHz, sweep, …).

1.6. AD Calibration Test

N/A

As SoC as built-in A/D self-calibration mechanism, there’s not any ADC to perform.

1.7. DDC & EDID & T-Link Test

The E-EDID data structures are according to VESA Enhanced EDID 1.4a (and EIA/CEA-861B for HDMI)..

All VGA and HDMI structures have their own BIN profile which are part of firmware and uploaded at power-on.

For EDID check, it’s recommended to check whether the correct EDID is uploaded by checking corresponding

EDID NVM Checksum or read them out to check bit by bit if it is in line with the released EDID bin file.

1.8. HDCP Upgrade and Test

See Appendix ⑸ “How to upgrade HDCP KEY by UART”

For HDCP compliancy, it’s needed to check whether the HDCP key has been well set by connecting suitable

generator signal.

Page 9 of 26

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