SCHNEIDER LCD TV.pdf

Model no.: 20M301 ver: 2.1

Contents

Page

1. Caution

2--------5

2. Product specification

6--------8

3. BOM list

9-------33

4. Factory menu

34------35

5. SW Loading procedure for finished sets

36------38

6. Alignment procedures

39------40

7. Block diagram

41------42

8. Circuit diagram

43------60

9. PCB layout

61------75

10.record of SW updating

76------77

11. Explode view diagram

This manual is updated by customer service dept. during w419 for the first time.

It doesn’t include the modification, which may be made later. With the

constant improvement of product, we may update this manual regularly.

SCHNEIDER ELECTRONICS GMBH-GERMANY

1. CAUTION

CA UTION:

Use of controls, adjustments or procedures other than those specified herein may result in

hazardous radiation exposure.

CA U T ION

RISK

OF ELECTR I

ELECTR

CTR IC

CA UT ION : TO RE DUCE THE RIS K OF

ELECTR ICA L SHOCK, DO NOT RE MOVE

COVER (OR BACK). NO USER SERVIC EABLE

PAR TS INS IDE . RE FE R SER VIC ING TO

QUALIFIE D SERVICE PERSONNEL.

SHOCK

CK DO

DDO NOT

NNOTT OPEN.

OOPEN.

EN.

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.

dangerous

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.

WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

RIS

RISKK OF

ELE

SHO

SHOCK

SCHNEIDER ELECTRONICS GMBH-GERMANY

IMPORTANT SAFETY INSTRUCTIONS

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 instructions should be read before the product is 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

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

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.

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

a built-in

enclosure, unless proper ventilation is provided.

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 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.

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

ANTENNA DISCHARGE

UNIT (NEC SECTION

810-20)

ELECTRIC SERVICE

EQUIPMENT

GROUNDING

CONDUCTORS

(NEC SECTION810-21)

NEC-NATIONAL ELECTRICAL CODE

GROUND CLAMPS

POWER SERVICE 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

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.

installer s

SCHNEIDER ELECTRONICS GMBH-GERMANY

OPERATION OF YOUR SET

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

off

and unplug the television set from the wall outlet.

IF THE SET DOES NOT OPERATE PROPERLY

21. If you are unable to restorenormal operationby followingthe detailedprocedurein youroperatinginstructions,

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, unplugthe set and have it checked by a professional service technician.

23. It is normal for some TV sets to make occasional snapping or poppingsounds, 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 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 ser vice technician to perform

routine safety checks to determine that the television is in safe operating condition.

18. This television set should be operated only from the type of power source indicated on the marking label.

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