Hisense MT9602GAATCB Manuale utente

LCDTelevision

Service Manual

Chassis：MT9602GAATCB

Product: EU TV

V 1.0

Hisense Visual Technology Co.,Ltd.

Dec , 2020

- 2 -

REVISION HISTROY

Version

Revise content

Reviser

Date

V1.00

First issued

Liucaijun

2021-7-6

- 3 -

Contents

Contents.......................................................................................................................................................................- 3 -

Service Manual ...........................................................................................................................................................- 4 -

1. Precautions and notices.....................................................................................................................................- 4 -

1.1 Warning...................................................................................................................................................- 5 -

1.2 Notes.......................................................................................................................................................- 7 -

2. TV boards:......................................................................................................................................................- 10 -

3. Factory/Service OSD Menu andAdjustment..................................................................................................- 16 -

3.1 How to get into the Factory OSD Menu...............................................................................................- 16 -

3.2 Factory OSD Menu...............................................................................................................................- 18 -

4. Software Upgrading........................................................................................................................................- 21 -

5. Trouble shooting.............................................................................................................................................- 39 -

5.1 Troubleshooting for Remote Control....................................................................................................- 40 -

5.2 Troubleshooting for Function Key........................................................................................................- 41 -

5.3 TV won’t Power On..............................................................................................................................- 42 -

5.4 Troubleshooting for Audio....................................................................................................................- 43 -

5.5 Troubleshooting for TV/VGA/HDMI input..........................................................................................- 44 -

5.6 Troubleshooting for Video input...........................................................................................................- 45 -

- 4 -

Service Manual

1. Precautions and notices

BEFORE SERVICING THE LCD TV, READ THE SAFETY PRECAUTIONS IN

THIS MANUAL.

USE ONLY MANUFACTURER SPECIFIED REPLACEMENT PARTS WHEN

SERVICING.

USE OF NON-AUTHORIZED PARTS WILL VOID THE MANUFACTURE'S

WARRANTY

Proper service and repair is important to the safe, reliable operation of all Hisense

Equipment. The service procedures recommended by Hisense and described in this

Service Guide are effective methods of performing service operations. Some of these

service operations require the use of tools specially designed for the purpose. The special

tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES

which should be carefully read in order to minimize the risk of personal injury to service

personnel. The possibility exists that improper service methods may damage the

equipment and pose risk of personal injury

. It is also important to understand that these CAUTIONS and NOTICES ARE NOT

EXHAUSTIVE. Service should only be performed by an experienced electronics

- 5 -

techician trained in the proper Television safety and service methods and procedures

Hereafter throughout this manual, HISENSE will be referred to.

1.1 Warning

1.1.1

Critical components having special safety characteristics are identified with a by the

Ref. No. in the parts list. Use of non-manufacturer's recommended parts may create

shock, fire, or other hazards. Under no circumstances should the original design be

modified or altered without written permission from RCA. Hisense Eassumes no liability,

express or implied, arising out of any unauthorized modification of design. Service-tech

assumes all liability.

1.1.2.

All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD).

Careless handling during repair can reduce life drastically. When repairing, be sure to

use anti-static table mats and properly use a grounding wrist stra. Keep components and

tools also at this same potential.

IMPORTANT:

Always disconnect the power cord from AC outlet before replacing parts or modules.

1.1.3

To prevent electrical shock, use only a properly grounded 3 prong outlet or extension

cord.

- 6 -

1.1.4

When replacement parts are required, be sure to use replacement parts specified by the

manufacturer or have the same characteristics as the original part. Unauthorized

substitutions may result in fire, electric shock, or other hazards and will void the

manufacturer's warranty.

1.1.5

Safety regulations require that after a repair the set must be returned in its original

condition. In addition, prior to closing set, check that:

-Note:

>All wire harnesses and flex cables are properly routed and secured with factory tape

and/or mounted cable clamps.

> All cables and connectors are properly insulated and do not have any bare wires/lead

exposed

1.1.6

(1) Do not supply a voltage higher than that specified to this product. This may

damage the product and may cause a fire.

(2) Do not use this product:

> High humidity areas

> In an area where any water could enter or splash into the unit.

High humidity and water could damage the product and cause fire.

- 7 -

(3) If a foreign substance (such as water, metal, or liquid) gets inside the panel

module, immediately turn off the power. Continuing to use the product may cause fire

or electric shock.

(4) If the product emits smoke, and abnormal smell, or makes an abnormal sound,

immediately turn off the power. Continuing to use the product, it may cause fire or

electric shock.

(5) Do not pull out or insert the power cable from/to an outlet with wet hands. It may

cause electric shock.

(6) Do not damage or modify the power cable. It may cause fire or electric shock.

(7) If the power cable is damaged, or if the connector is loose, do not use the product:

otherwise, this can lead to fire or electric shock.

(8) If the power connector or the connector of the power cable becomes dirty or dusty,

wipe it with a dry cloth. Otherwise, this can lead to fire.

(9) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer,

or sold with the apparatus. When a cart is used, use caution when moving the

cart/apparatus combination to avoid injury from tip-over

1.2 Notes

Notes on Safe Handling of the LCD panel and during service

The work procedures shown with the Note indication are important for ensuring the

safety of the product and the servicing work. Be sure to follow these instructions.

• Before starting the work, secure a sufficient working space.

- 8 -

• At all times other than when adjusting and checking the product, be sure to turn OFF

the POWER Button and disconnect the power cable from the power source of the TV

during servicing.

• To prevent electric shock and breakage of PC board, start the servicing work at least 30

seconds after the main power has been turned off. Especially when installing and

removing the power board, start servicing at least 2 minutes after the main power has

been turned off.

• While the main power is on, do not touch any parts or circuits other than the ones

specified. If any connection other than the one specified is made between the measuring

equipment and the high voltage power supply block, it can result in electric shock or

may trip the main circuit breaker When installing the LCD module in, and removing it

from the packing carton, be sure to have at least two persons perform the work.

• When the surface of the panel comes into contact with the cushioning materials, be

sure to confirm that there is no foreign matter on top of the cushioning materials before

the surface of the panel comes into contact with the cushioning materials. Failure to

observe this precaution may result in, the surface of the panel being scratched by foreign

matter.

• Be sure to handle the circuit board by holding the large parts as the heat sink or

transformer. Failure to observe this precaution may result in the occurrence of an

abnormality in the soldered areas.

• Do not stack the circuit boards. Failure to observe this precaution may result in

- 9 -

problems resulting from scratches on the parts, the deformation of parts, and

short-circuits due to residual electric charge.

• Perform a safety check when servicing is completed. Verify that the peripherals of the

serviced points have not undergone any deterioration during servicing. Also verify that

the screws, parts and cables removed for servicing purposes have all been returned to

their proper locations in accordance with the original setup.

The lightning flash with arrowhead symbol, within an equilateral

triangle is intended to alert the user to the presence of uninsulated

dangerous voltage within the products enclosure that may be of sufficient magnitude to

constitute a risk of electric shock.

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 set.

- 10 -

2. TV boards:

Main board layout:

2.1 The TOP of board(RSAG2.908.11529)

Main board 11529 terminals

Indice

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