Dismantling Information forUse
by ProfessionalRecyclers
ORIGINAL MANUAL ISSUE DATE: 2022.04
Model:
XR-55A80K XR-65A80K XR-77A80K
XR-55A83K XR-65A83K XR-77A83K
XR-55A84K XR-65A84K XR-77A84K
XR-55A75K
XR-65A75K
9-888-906-42
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-todate before using it.
OLED TV
Sony EMCS (Malaysia) Sdn. Bhd., HES-M
© 2022.06
MODE L LIS TS
Model Remote Destination
XR-55A80K RMF-TX800U / RMT-TX440E CEI, UKA
RMF-TX800U RU3
XR-55A83K RMF-TX900U / RMT-TX440E CEI
XR-55A84K RMF-TX900U / RMT-TX440E CEI, UKA
XR-55A75K RMF-TX520E CEI, UKA
XR-65A80K RMF-TX800U / RMT-TX440E CEI, UKA
RMF-TX800U RU3
XR-65A83K RMF-TX900U / RMT-TX440E CEI
XR-65A84K RMF-TX900U / RMT-TX440E CEI, UKA
XR-65A75K RMF-TX520E CEI , UKA
XR-77A80K RMF-TX800U / RMT-TX440E CEI, UKA
RMF-TX800U RU3
XR-77A83K RMF-TX900U / RMT-TX440E CEI
XR-77A84K RMF-TX900U / RMT-TX440E CEI, UKA
RMF-TX800U
RMF-TX900U
RMT-TX440E
RMF-TX520E
TOOLS & EQUIPM ENTS
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 (Common) (for t/shooting information)
3. 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)
3
SAF ETY NO TES
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.
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 in service mode.
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.
4
SAF ETY NO TES
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 temperaturesor 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.
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.
5
SAF ETY NO TES
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
in service mode.
1-3. Caution_for_Board_handling.
Symptom : The following problems will occur due to handling of the IC mounted on the board.
Solder crack due to substrate handling (stress).
・
・
IC breakdown due to static electricity (ESD).
When repairing the TV at the customer‘s home or service station or Repair of defect board,
please pay attention to the handling of the board.
※
Substrate that needs attention for handling
・
Main Board（B** - Board
Backend Board（D** - Board
・
）
）
6
SAF ETY NO TES
Things to prepare in advance.
※
ESD wrist-strap.
Please use a bag containing the board or a special seat.
ESD cushion/sheet.
1) Caution for Board handling(Stress)
Be sure to observe the following contents.
Hold the board with both hands.
①
Do not hold/push Heat-Sink.
②
Handle with care. Do not swing.
③
ESD wrist-strap to be checked daily.
Use Multi-meter to make sure resistance of ESD wrist-strap is OK.
(R=750K Ohms to 35Mega Ohms)
7
SAF ETY NO TES
Regardless of Good board or Defective board, always put it on
④
ESD cushion/sheet slowly.
Do not stack up.
⑤
Keep vertical position and put in/take out from Box.
⑥
Always put into ESD bag then place into Box/Container Box.
Do not hold Heat-Sink when dis-assembly or assembly it.
⑦
2) Caution for Board handling(ESD).
Be sure to observe the following contents
①
When take off Rear-Cover, do
not touch to board.
.
Use ESD wrist-strap.
②
8
SAF ETY NO TES
Installation example of wrist-strap.
※
Please connect the clip to the metal part of the chassis of the TV with the wristband
grounded. Below is a grounding example of each model.
K*-65Z9F
＜
＞
When holding board, do not hit/touch to Plastic part(s).
③
After take defective board out from TV, put it into ESD bag.
④
Do not place on floor mat/carpet direct. And, always put it on
ESD cushion.
Caution
※
ESD wrist-strap to be checked daily.
Use Multi-meter to make sure resistance of ESD wrist-strap is OK.(R=750K Ohms to
35Mega Ohms).
1-4. Caution About the Lithium Battery.
1) Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type.
2) Outer case broken battery should not contact to water.
9
SAF ETY NO TES
1-5. 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 highwattage 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.
1-6. 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 measurementmust
not exceed AC 350uA peak).
Note: including AC adaptor, AC adaptor/DC operated unit combination.
Figure 2 – Measuring network for LeakageCurrent
10
SAF ETY NO TES
1-7. 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).
1-8. 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
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.
Figure 3. Checking for earth ground.
11
DISASSEMBLY AND REMOVAL CAUTION 55”
REAR C O VER
1. Remove the screws from the rear cover (4 pcs)
2. Remove the bottom cover in red box.
Washer or coin to unhook Cover Hook
*Wrap washer in VA tape (15mm X 55mm)
*Thickness approximately 1.5mm
Put washer or coin in the slit of cover hook.
①
Turn washer or coin to the direction of the arrow.
②
③
Remove cover hook.
1 2 3
12
Loading...