RCA LC32HD250 Schematic

TCL

SERVICE MANUAL

EU MT/ SERIALS

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

2. Specification …………………………………………………………………6

3. Block Diagram..................................................................................................7

4 . Alignment Procedure…………………………………………………………8

5. Scheme Diagram…………………………………………………………… 18

This manual is the la test a t the time of p rinting, an d does 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 DU CE TH E RIS K OF

CA U T ION

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 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.

ELECTRI

NOT

OPEN.

ELECTR ICAL SHOCK, DO NOT RE MOVE COVER (OR BACK). NO USER SERVICEABLE PAR TS INS IDE . RE FE R SER VIC ING TO QUALIFIE D SERVIC E PERSONNEL.

dangerous

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

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 operatinginstructionsshouldbe 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 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 car t combination to overturn.

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 ELECTRICALCODE

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. 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 Article 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 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.

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 servicing to 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 restore normaloperationby followingthedetailedprocedurein your operating instructions, 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 replacementparts are required, be sure the service technician has used replacement parts 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 ser vice technician to perform routine safety checks to determine that the television is in safe operating condition.

Key Features

Update:2010/04/7 V:1.1

机芯号 Model # 使用范围： TCL/中国大陆

★低成本模拟电视 ★USB多媒体（图片、音乐） ★HDMI1.3接口*2

主要功能特点

★睡眠定时 1.切台或换信源黑屏.

主要芯片 Main IC 处理芯片

型号 Module

MT8223H

功能定义：

图像动态背光动态对比度色温调整 Adjustable Color Temperature

比例模式 Format Control 背光调节 Backlight Adjust

梳状滤波Comb Filter 降噪Noise Reduction 声音SOUND 声音功率Audio Power (Watts) Front Speakers 音效新闻、电影、音乐、标准、自设定共五种平衡均衡高低音智能音量 Yes 音响单独听信号格式SIGNAL FORMAT CAPABILITY 射频格式 RF Tuning Capability AV制式 AV Formats (PAL/NTSC/SECAM) YPbPr最高格式 HMDI最高格式 VGA支持分辩率: 点对点显示（VGA、YPbPr、HDMI）电视功能频道数 channel quantity 99 频道跳跃智能搜台频道互换

其它同公司标准

多媒体/娱乐 Yes 音乐播放 Yes MP3 图片播放（数码相册）音画播放系统功能睡眠定时

OSD语言中文简体/英语 EM语言根据需求另定 OSD时间调节固定

开机LOGO 标准标准LOGO 能效及认证待机功耗－－能效等级－－节能认证环保证认

4：3、全屏(16:9)、宽屏、16：9字幕自适应共

MT23H

Yes Yes Yes

五种

Yes

3D 3D

8W/CH x 2

Yes

PAL(I/D/K/B/G)

PAL/NTSC/SCAM

1080P 1080P

1920*1080

Yes

Yes Yes Yes

Yes Yes

Yes

No 符合中国ROHS要求

备注

JEPG

摇控器REMOTE CONTROL 摇控器型号 Remote Model Number 码值格式 RCA 38K 键数

Yes

RC300

后端子 CONNECTIONS — REAR

HDMI Dsub15 VGA VGA音频 Audio input for Dsub 15 VGA Φ3.5*1

分量输入 Composite Video input(HDTV) 分量音频 Component Aideo Input (YCrCb/YPrPb) (synchroscan)

AV input RF Input (PAL) AV输出 AV Output

1 1

1R+1L

1 AV (AV1)

1 AV

侧置端子 FAV

AV input HDMI USB

1（AV2）

第1页共1页

Factory Alignment Specification of normal SIACP

TCL WW R&D FPD CENTER

Factory Alignment Specification of normal SIACP

For MT8223 serial

For the following Chassis：

MT8223L: MT8223H:

Version：V0.1

PREPARED BY : LiuShuBiao DATE : 2010-05-13

APPROVED BY : DATE :

Page 1 of 10

Factory Alignment Specification of normal SIACP

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

V0.10 2010-02-07 This is the first version of normal SIACP

·HDMI as the main absolute input

·The password of factory menu is 9735

Page 2 of 10

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