THIS SERVICE MANUAL CONTAINS COMMON INFORMATION FOR BELOW REGIONS AND MODELS:
REGION
ASIA AMERICA EUROPE CHINA
MODEL
-55A8F
-55AF8
-55A8F
-55A8F
-65A8F
-65AF8
-65A8F
-65A8F
JAPAN
3
SYSSET
Title
Page
SAFETY NOTES
SELF DIAGNOSTIC FUNCTION
TROUBLE SHOOTING
4.
SERVICE ADJUSTMENTS
5.
DIAGRAMS
PANEL and TV SET HANDLING
2018/03/1622:32:44(GMT+09:00)
TABLE OF CONTENTS
Section
1.
2.
3.
6.
5
10
14
69
79
81
Please refer Service Manual – Unique for below information :
-Disassembly and Removal Caution
-Wire Dressing
-Circuit Board Location
-Exploded Views and Parts List
Note: Pictures provided in this Service Manual might have slight difference from the
actual sets.
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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 contained 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.
SECTION 1
SAFETY NOTES
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.
1-2-1. Caution Handling of LCD Panel
The replaceable fuse could be in the neutral of the mains supply. When
replacing the fuse, the mains shall be disconnected for 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 operation. 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 operation
this manual. Follow these procedures whenever critical components are
replaced or improper operation is suspected.
6) IMPORTANT REMINDER FOR TV MAINBOARD REPLACEMENT :
It is mandatory for service centers to confirm the TV‘s system information after
each repair carried out with Main board replacement.
are identified in
When repairing the LCD Panel, make sure you are grounded with a wrist
band.
When repairing the LCD Panel on the wall, the panel must be secured
using the 4 mounting holes on the rear cover.
1) Do not press the panel or frame edge to avoid the risk of electric
shock.
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperature or in areas of high
humidity for an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause short circuit within the module.
6) Disconnect the AC power when replacing the backlight (CCFL) or
inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit.
Damaging the wires may cause a short circuit.
9) Protect the panel from ESD to avoid damaging the electronic circuit
(C-MOS).
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10) During the repair, DO NOT leave the Power On or Burn-in period for
more than 1 hour while the TV is face down on a cloth. Refer Figure 1 .
Figure 1.
1-2-2. 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.
*Do not recommend power-on in the conditions which laid face down the
panel, in repair activity. Refer Figure 1 .
*When transporting by hand, do not put stress on the panel and the frame
around the screen.
Refer to the panel handling chapter of each Service manual,
or the "Transporting" information of the Reference Guide of each model for
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 TV’s 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.
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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 10
ºC 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 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.
1-4. 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.
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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, though functioning show obvious signs of
deterioration. Point them out to the customer and recommend their
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.
1-5.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 -m et er (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
1-6. 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 troublelight (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.
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1-7. 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.
The servicing of these boards requires special precautions. It is
strongly recommended to use Lead Free Solder material in order to
Figure 4: LF Logo
Figure 5: LF logo on circuit board
guarantee optimal quality of new solder joints.
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The units in this manual contain a self-diagnostic function. If an error occurs, the Smar t C ore R ed LE D will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definit ion of the Smart Core Red LED flash indicators is listed in the instruct ion manual for the user’s knowl edge and reference.
If an error symptom cannot be reproduced, the r emote c ommander can be used to review the failure occurrenc e data stored in memory to
reveal past problems and how often these pr oblems occur.
DIAGNOSTIC TEST INDICATORS
When an error occurs , the Smart Core Red LED w il l flash a set number of times to indicate the poss i ble cause of the problem.
If there is more than one error , the LED wil l identify the first of the problem areas .
Result for all of the foll owing diagnostic items are displayed on screen.
If the screen display s a “ 0”, no error has occ urr ed .
Self Diag. Quick Reference (LED blinking)
SECTION 2
SELF DIAGNOSTIC FUNCTION
Smart Core RED
LED blinking count
2x <B/G> Main 12V over voltage [MAIN_POWER]
3x
4x <T/B>TCON internal error/TCON I2C communication error[LD_ERR]
5x
6x <G/B> G board error[BACKLIGHT]
7x
8x <B> 4KBE Error (4KBE WDT)
Detection Items
<B/G> Main 5.0V failure [DC_ALERT]
<B/S/G> Audio amp. protection [AUD_ERR]
<P/T/G/B> Panel ID EEPROM I2C No ACK
(Also panel power failure is a suspect) [P_ID_ERR]
<T/B>Data corruption in EEPROM[P_ID_ERR]
<B/P> Over temperature protection [TEMP_ERR]
<B> Temp. sensor I2C No ACK [TEMP_ERR]
Blue italic: detect at startup sequence only.
<G>: Power supply board,
<B>: Main board,
<T>: T-con board,
<P>: Panel module,
<S>: Speaker,
<Tu>: Tuner board,
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Self Diag. Quick Reference (Not LED blinking [Record Only])
Error Item
( Not LED blinking
[Record Only])
TU_DEMOD
TCON ERR
AUD_ERR_I2C <B> Audio amp I2C communication failure
Detection Items
<B/Tu> Tuner & Demodulator I2C communication failure
Tuner board set detect signal monitoring
None
*CR is shutdown by I2c communication failure[LD_ERR]
<G>: Power supply board,
<B>: Main board,
<T>: T-con board,
<P>: Panel module,
<S>: Speaker,
<Tu>: Tuner board,
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Self Diagnosis Service Menu and Display
Entry (Self Diagno sis D ispl ay)
- Go to the standby by a remote.
- Push the buttons sequentially:
<Display><5><Vol-><Power>
Exit
-If you want to finish service mode app, do AC OFF/ON → *Service mode app is disable perfectly
-if you want to move home menu, push <HOME>button
→ *Service mode app do background(not disabl e perfectly )
Format of error timestamps
YYMMDDhhmmss (in UTC)
Example:
120823132523 -> Aug 23 2012 13:25:23 UTC
* Only when time is set, an error timestamp
is saved.
Total Operation Time and Boot Count clear
<9> -> <0>
Total Operation Time [hr] – Boot Count – Panel Operation Time [hr]
•Panel Operation Time is recorded every 30 min, but Total Operation
Time is recorded every 1 hr.
Therefore, the panel op. time might become larger than the total op. time.
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Self Diagnosis Display
How to confirm
- Panel ON time
- Panel Refresh times
Enter Self Diagnosis D ispl ay.
Then Push ‘Green button’ on
remote controller.
Then display upper right corner.
Green button
1
4 5 6
7
2 3
8
9
Panel ON time[hour] /Panel Refresh times[times]
Ex) 100 / 20
Check +12V_MAIN Line
(from G board).
Check “AC_OFF_DET_OUT”
(from BE SOC IC4000)
Check “AC_DET_IN”
(C407, CN400 #16pin
from G board)
yes
Check TYPE_DET
R428 Voltage.
Is the voltage 2.6±0.2V?
yes
Check OPWRSB
R443 Voltage.
Is the voltage 0V?
yes
Check POWER_ON
R526 or P-on u-com #pin10
Is the voltage >3.0V?
yes
no
no
no
Type Detection Circuit problem.
Check TYPE_DET Line (R521, R522, R523).
SOC
Muffin 2
problem
Try AC Off and On after few minutes.
If #pin10 keep Low, change IC401.
If #pin10 goes High few seconds and downs to Low,
Check +12V_MAIN Line (from G board).