Sony XR-55A95K Instructions de fonctionnement

9-888-902-41

OLED TV

Sony EMCS (Malaysia) Sdn. Bhd., HES-M

ORIGINAL MANUAL ISSUE DATE: 2022.05

Conditions of Use:

(1) Please use this information only for the purpose of performing repair and recycling Sony products. Using this information

for any purpose other than the purpose described foregoing is forbidden.

(2) Do not copy, replicate, reproduce, alter, translate, transmit, sell, lease, or distribute this information in whole or in part

without the prior written permission of the author.

Revision of Information:

This information may be changed or updated at any time without any prior notice. Please confirm that this information is up-to-

date before using it.

Dismantling Information forUse

by ProfessionalRecyclers

Model:

XR-55A95K XR-65A95K

MODEL LISTS

Model Remote Destination

XR-55A95K RMF-TX900U CEI , UKA

RMT-TX440E

XR-65A95K RMF-TX900U CEI , UKA

RMT-TX440E

RMF-TX900U RMT-TX440E

1 LIST OF ITEMS TO BRING

i. Screwdriver (e.g., #2 Phillips Screwdriver)

ii. Multimeter

iii. ESD Wrist Straps

iv. Metal Washer (Flat) or Coin (for remove Rear Cover)

v. Ruler (for remove Rear Cover)

vi. Service Manual (Unique) (for remove & replace details)

2 OPTIONAL EQUIPMENTS

i. Screwdriver (e.g., #0 Phillips Screwdriver)

ii. Parts Tray for loose screws and small items

iii. Flashlight

iv. Service Manual

For Surface Mounted Parts / Connectors

Hot Air type soldering iron is needed

Thickness: approx. 1.5mm

Diameter: 20~25mm

(wrap in tape (L=50mm))

Plastic or Metal Ruler

(In case of Metal ruler, wrap in

tape (L=50mm) for prevent

scratches)

TOOLS & EQUIPMENTS

Whenever a TV Main board is replaced, the correct TV Model and Serial number must be

reinserted into memory.

This is a MANDATORY procedure that each service center must apply.

Please refer to the chapter of ADJUSTMENT in this service manual to find out how to set the

model number and serial number

1-1. Warnings and Caution.

1) CAUTION: These servicing instructions are for use by qualified service personnel only.

2) To reduce the risk of electric shock, do not perform any servicing other than that stated in

the operating instructions unless you are qualified to do so.

3) WARNING!!: An isolation transformer should be used during any service to avoid possible

shock hazard, because of live chassis. The chassis of this receiver is directly connected to

the ac power line.

The replaceable fuse should be in the neutral of the mains supply. When replacing the fuse,

the mains must be disconnected to de-energize the phase conductors.

(*Except AC ADAPTOR, Because it does not carry out replacing an internal fuse.)

4) CARRYING THE TV: be sure to follow these guidelines to protect your property and

avoid causing serious injury:

• Carry the TV with an adequate number of people; larger size TVs require two or more

people.

•Correct hand placement while carrying the TV is very important for safety and to

avoid damages.

5) SAFETY-RELATED COMPONENT WARNING!!: Components identified by shading and !

mark on the exploded views, and in the parts list are critical for safe operations. Replace

these components with Sony parts whose part numbers appear as shown in this manual or in

supplements published by Sony. Circuit adjustments that are critical for safe operations are

identified in this manual. Follow these procedures whenever critical components are replaced

or improper operation is suspected.

6) IMPORTANT REMINDER FOR TV MAIN BOARD REPLACEMENT:

It is mandatory for service centers to confirm the TV‘s system information after each repair is

carried out with Main board replacement.

SAFETY NOTES

Figure 1.

Refer to the panel handling chapter of each Service manual, or the "Transporting" information of

the Reference Guide of each model on how to hold it.

2) OLED Screen.

•Although the OLED screen is made with high-precision technology and 99.99% or more of the

pixels are effective, black dots may appear or bright points of light (white, red, blue, or green)

may appear constantly on the OLED screen. This is a structural property of the OLED screen

and is not a malfunction.

•Do not push or scratch the front filter or place objects on top of this TV set. The image may

be uneven, or the OLED screen may be damaged.

•The screen and cabinet get warm when this TV set is in use. This is not a malfunction.

3) Precautions to Protect the Screen from Damage.

Image retention.

OLED TVs are susceptible to image retention (burn-in) due to the characteristics of the

materials used. Image retention may occur if images are displayed in the same location on the

screen repeatedly or over extended periods of time. This is not a malfunction of the TV. Avoid

displaying images that may cause image retention.

The following are examples of images that may cause image retention:

•Content with black bars either on the top and bottom and/or the left and right sides of the

screen. (for example, Letterboxed, 4:3 screen, Standard definition).

•Static images such as photos.

•Video games that might have static content in some part of the screen.

•On-screen menus, program guides, channel logos etc.

•Static content from applications.

•On-screen tickers, such as those used for news and headlines.

1-2. Caution for OLED Panel.

1) Handling.

When repairing the TV set, be sure you are grounded by using a wrist band.

*Do not press on the panel or frame edge to avoid the risk of electric shock.

*Do not scratch or press on the panel with any sharp objects.

*Do not leave the module in high temperatures or in areas of high humidity for an extended

period of time.

*Do not expose the panel to direct sunlight.

*Avoid contact with water. It may cause a short circuit within the module.

*Disconnect the AC power when replacing.

*Always clean the panel with a soft cloth material.

*Use care when handling the wires or connectors. Damaging the wires may cause a short.

*Protect the panel from ESD to avoid damaging the electronic circuit.

*It is not recommended to POWER ON when the panel is laid facing down during repair

activity. Refer Figure 1.

*When transporting by hand, do not put pressure on the panel and the frame around the

screen.

SAFETY NOTES

To reduce the risk of image retention:

• Fill the screen by changing [Wide mode] to eliminate the black bars. Select [Wide mode]

other than [Normal].

• Turn off the OSD (On Screen Display) by pressing the DISPLAY button, and turn off the menus

from connected equipment. For details, refer to the instruction manuals for the connected

equipment.

• Avoid displaying static images with bright colours (including white), clocks or logos on any

portion of the screen.

• Set the picture settings based on the ambient conditions. The Standard Picture is

recommended for home use and when viewing content that often displays the station logos, etc.

The TV has following features to help reduce/ prevent image retention. Press the HOME button,

then select [Settings] – [Picture & Display] – [Expert panel settings] – the desired option.

Panel refresh.

Panel refresh will automatically run to adjust the uniformity of the TV screen after it has been

in use for long periods of time.

Panel refresh can also be performed manually and should only be used if image retention is very

noticeable, or you see the following message: [Panel refresh did not finish...]

Caution:

• The Panel refresh function may affect the panel. As a reference, perform the Panel refresh only

once a year, do not perform it more than once a year as it may affect the usable life of the panel.

• Panel refresh takes about one hour to complete.

• A white line may be displayed on the screen during the Panel refresh, this is not a

malfunction of the TV.

• Panel refresh will only work when the room temperature is between 10ºC and 40 ºC.

Pixel shift.

Automatically moves the image on the screen to prevent image retention.

Other feature.

The screen brightness is automatically reduced when displaying still images, clocks, bright

colours or logos etc.

IMPORTANT REMINDER FOR OLED PANEL REPLACEMENT

When carrying out OLED panel replacement, it is mandatory of a service

center to confirm and record Panel ON time & Panel Refresh times.

It is because they are indispensable information in order to clarify

responsibility for image retention after panel replacement.

Please refer to the chapter of SELF DIAGNOSIS FUNCTION in this service

manual to find out how to confirm the Panel ON time & Panel Refresh times

SAFETY NOTES

1-3. Safety Check-Out

After correcting the original service problem, perform the following safety checks

before releasing the set to the customer:-

1) Check the area of your repair for unsoldered or poorly soldered connections. Check the

entire board surface for solder splashes and bridges.

2) Check the inter board wiring to ensure that no wires are pinched or contact high-

wattage resistors.

3) Check all control knobs, shields, covers, ground straps and mounting hardware have

been replaced. Be absolutely certain you have replaced all the insulators.

4) Look for unauthorized replacement parts, particularly transistors that were installed

during a previous repair. Point them out to the customer and recommend their replacement.

5) Look for parts which show obvious signs of deterioration even though functioning. Point

them to the customer and recommend for replacement.

6) Check the line cords for cracks and abrasion. Recommend the replacement of any such

line cord to the customer.

7) Check the antenna terminals, metal trim, metalized knobs, screws and all other exposed

metal parts for AC leakage. Check leakage test as described next.

8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.

1-4. Leakage Test.

(To protect electric shock when customer touch the terminal.).

Leakage current can be measured by V: Voltmeter or oscilloscope (r.m.s. or peak reading).

Stabilized power supply instrument and isolated voltage transformer:

Use too much current capacity and isolated voltage transformer does not need to use

stabilized power supply equipment.

Specification of RMS volt meter: Input resistance > 1 Mohm, Input capacitance < 200 pF,

Frequency range: 15 Hz – 1MHz . Refer Figure 2. Isolated type volt -meter (FLUKE 8921A

etc *1).

*1 Not use FLUKE 8920A that connected to protective earth by diode.

# Leakage current of measurement instrument is less than 10μArms when under test

equipment AC plug is opened.

# Set up the following condition and turn on the set. Applied voltage: Nominal input voltage

(Description on Nameplate).

# Measure the leakage current between one phase conductor and neutral for terminal A and

terminal B.

Read rms value, and then calculate to peak value PEAK VALUE =√2 RMS VALUE.

Comply with the following requirement.

Class II equipment (2-pin plug): for each terminal, the worst value of measurement must

not exceed AC 350uA peak).

Note: including AC adaptor, AC adaptor/DC operated unit combination.

Figure 2 – Measuring network for Leakage Current

SAFETY NOTES

1-5. How to Find a Good Earth Ground.

1) A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on

most AC outlet boxes is also at earth ground.

2) If the retaining screw is to be used as your earth ground, verify that it is at ground by

measuring the resistance between it and a cold-water pipe with an ohmmeter. The

reading should be zero ohms.

3) If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon

lamp) between the hot side of the receptacle and the retaining screw. Try both slots, if

necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the

screw is at ground potential (see Figure 3).

Figure 3. Checking for earth ground.

The servicing of these boards requires special precautions. It is strongly recommended to use

Lead Free Solder material in order to guarantee optimal quality of new solder joints.

1-6. Lead Free Information

The circuit boards used in these models have been processed using Lead Free Solder. The

boards are identified by the LF logo located close to the board designation.

Figure 4: LF Logo Figure 5: LF logo on circuit board

SAFETY NOTES

REAR COVER

DISASSEMBLY AND REMOVAL CAUTION 55”

Notes : If the table-top style is the front position, change it to the back position

Front position

Back position

Remove the SET from the stand, flip it over,

and insert it into the stand and then screw tightening.

1. Release screw which is quantity 10 pcs, and it can be done with

two conditions :

i. Face down

ii. Upright

REAR COVER

ii. Upright

i. Face Down

DISASSEMBLY AND REMOVAL CAUTION 55”

Ce manuel convient aux modèles suivants

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