Sony XBR-65X900A Operating instructions

REPAIR MANUAL
Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
LCD Digital Color TV
9-883-510-04
RB1FS Chassis
Segment: FS-M
Version Date Subject
1.0 03/29/2013 Original Manual Release Date.
2.0 07/03/2013 Updated Section 3 - Repair Information. Reissue entire manual.
3.0 10/25/2013 Updated Section 4 - Exploded View/Part Number Information. Replaced pages 22 - 28.
4.0 12/20/2013 Updated Section 3 - Repair Information. Added pages 18 - 22.
Updated Section 4 - Exploded View/Part Number Information. Replaced pages 29 and 33.
MODEL COMMANDER DESTINATION
XBR-65X900A RM-YD087/RMF-YD001 US/CND
XBR-65X900A

XBR-65X900A i
TABLE OF CONTENTS
Cautions and Warnings...................................................................................ii
Section 1 - Specications and Layouts .........................................................1
Specications ................................................................................................1
Checking the Accessories......................................................................................1
Board Layout .................................................................................................2
XBR-65X900A........................................................................................................2
Wire Dressing................................................................................................3
XBR-65X900A........................................................................................................3
Smart Core Block...................................................................................................3
Section 2 - Troubleshooting ...........................................................................4
Diagnosing the Error .....................................................................................4
Viewing the Self Check Diagnosis History.............................................................4
Triage Chart...................................................................................................5
Flowcharts and Diagrams..............................................................................6
Overall Block Diagram / BAFS...............................................................................6
Overall Block Diagram / BAF2S.............................................................................7
Power and Control Block Diagram.........................................................................8
No Power Flowchart ..............................................................................................9
Standby LED Blinking Flowchart .........................................................................10
No Video Flowchart ............................................................................................. 11
Video Distorsion Flowchart..................................................................................12
No 3D Viewing.....................................................................................................13
Section 3 - Repair Information......................................................................14
Repairing the TV..........................................................................................14
Removing the Table-Top Stand and Cover Under ...............................................14
Removing the Rear Cover ...................................................................................14
Replacing the Main Board ...........................................................................15
Replacing the Power Supply Board.............................................................18
Replacing the TCON Board.........................................................................18
Replacing the CX Board..............................................................................22
Replacing the Switch Unit ...........................................................................24
Removing the Woofer Speaker ...................................................................24
Removing the WLAN Module and HW Board .............................................24
Removing the Side Speakers......................................................................25
Removing the Smart Core Block .................................................................26
Removing the TS Board ..............................................................................26
Section 4 - Exploded View/Part Number Information.................................27
Table-Top Stand ..........................................................................................27
XBR-65X900A .............................................................................................28
Smart Core Block ........................................................................................31
Connectors ..................................................................................................32
Screws.........................................................................................................33
Section 5 - Accessories/Part Number Information .....................................34
Accessories and Packaging ........................................................................34
Miscellaneous..............................................................................................34
Optional Accessories...................................................................................34
Remote Commander ...................................................................................34
Appendix A: Encryption Key Components ............................................... A-1

XBR-65X900A ii
CAUTION!!
These servicing instructions are for use by qualied service personnel only.
To reduce the risk of electric shock, do not perform any servicing other than
that contained in the operating instructions unless you are qualied to do so.
WARNING!!
An isolation transformer should be used during any service to avoid possible
shock hazard, in case of live chassis.
!
SAFETY-RELATED COMPONENT WARNING!!
There are critical components used in LCD color TVs that are important for
safety. These components are identied with shading and
!
mark on the
schematic diagrams and the parts list. It is essential that these critical parts
be replaced only with the part number specied in the parts list to prevent
electric shock, re or other hazard.
NOTE: Do not modify the original design without obtaining written permission
from the manufacturer or you will void the original parts and labor warranty.
ATTENTION!!
For safety reasons, component level repair of the Power Supply Boards
and/or the Inverter Boards is prohibited.
CAUTIONS AND WARNINGS
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualié
seulement. Pour prévenir le risque de choc électrique, ne pas faire l’entretien
autre que celui contenu dans le Mode d’emploi à moins que vous soyez
qualié faire ainsi.
ALERTE!!
An d’eviter tout risque d’electrocution provenant d’un chássis sous tension,
un transformateur d’isolement doit etre utilisé lors de tout dépannage.
!
ATTENTION AUX COMPOSANTS
RELATIFS A LA SECURITE!!
Les composants identies par une trame et par une marque
!
sur les
schemas de principe, les vues explosees et les listes de pieces sont d’une
importance critique pour la securite du fonctionnement. Ne les remplacer
que par des composants Sony dont le numero de piece est indique dans le
present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l’importance est critique pour la securite du fonctionnement
sont identies dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.
ATTENTION!!
Pour des raisons de sécurité, Interdire de réparer ou remplacer les
composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur.

XBR-65X900A iii
CAUTIONS AND WARNINGS
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 interboard wiring to ensure that no wires are “pinched” or
touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps and
mounting hardware have been replaced. Be absolutely certain that
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, 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, “metallized” knobs, screws
and all other exposed metal parts for AC leakage. Check leakage
as described in “Leakage Test”.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all
exposed metal parts to any exposed metal part having a return to chassis,
must not exceed 0.5 mA (500 microamperes). Leakage current can be
measured by any one of three methods.
1. A commercial leakage tester.
Follow the manufacturers’ instructions provided with the tester.
2. A battery-operated AC milliammeter.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low voltage scale. Nearly all
battery-operated digital multimeters that have a 2 VAC range are
suitable. (see Figure A)
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmete
r
(0.75V)
Figure A. Use an AC voltmeter to check AC leakage.
HOW TO FIND A GOOD EARTH GROUND
The cover-plate retaining screw on most AC outlet boxes is at earth ground.
Verify the AC outlet box retaining screw ground by connecting a 60W to
100W incandescent (not a neon or uorescent 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 B)
Figure B. Checking for earth ground.
Trouble Light
AC Outlet Box

XBR-65X900A 1
SPECIFICATIONS
System
Television system
ATSC (8VSB terrestrial): ATSC compliant 8VSB
QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality)
Channel coverage Analog terrestrial: 2 - 69 / Digital terrestrial: 2 - 69
Analog Cable: 1 - 135 / Digital Cable: 1 - 135
Panel system
Speaker output
Input/Output jacks
CABLE/ANTENNA
VIDEO IN 1
COMPONENT IN
VIDEO IN 2
YP
B P
R
(Component Video): 1080p (60 Hz), 1080i (60 Hz), 720p (60 Hz), 480p, 480i
Audio input (phono jacks)
Video input (common phono pin with Y input)
HDMI IN 1/2/3/4
(Support 4K resolution)
Video (2D): 4096 × 2160p (24 Hz), 3840 × 2160p (24, 25, 30 Hz), 1080p (30, 60 Hz),
1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i,
PC Formats
Video (3D):
Frame Packing 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p
Side-by-Side 1080p (60 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Over-Under 1080p (30, 60 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Audio: Two channel linear PCM: 32, 44.1 and 48 kHz, 16, 20 and 24 bits, Dolby Digital
ARC (Audio Return Channel) (HDMI IN 1 only)
MHL
(Common with HDMI IN 2)
Video (2D): 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i
Video (3D):
Side-by-Side 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Over-Under 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Audio: Two channel linear PCM: 32, 44.1 and 48 kHz, 16, 20 and 24 bits, Dolby Digital
AUDIO OUT/Headphones
DIGITAL AUDIO OUT
(OPTICAL)
Digital optical jack (Two channel linear PCM, Dolby Digital)
10BASE-T/100BASE-TX connector (Connection speed may dier depending on the networkNAL
environment. 10BASE-T/100BASE-TX communication rate and communication quality
are not guaranteed for this TV)
Refer to the i-Manual for supported formatsUSB/DLNA
RS232C, Serial Control mini jack; IR IN mini jack
REMOTE
These jacks are for receiving the external control signal
LCD (Liquid Crystal Display) Panel
12.5 W + 12.5 W + 20 W + 20 W
Video / Audio input (phono jacks)
75-ohm external terminal for RF inputs
Stereo mini jack
NTSC: American TV standard
SECTION 1 - SPECIFICATIONS AND LAYOUTS
*Screen size, dimensions and mass are approximate values.
•Optional accessories availability depends on countries/region/TV model/stock.
•Design and specications are subject to change without notice.
Model name XBR-65X900A
Power and others
USA/Canada 120 V AC, 60 Hz)(zH06/05,CAV042-011Power requirement
Power
consumption
W833esuni
in standby
Screen size*
(inches measured diagonally)
64.5 inches
(65 class)
lines (vertical)061,2×dots (horizontal)048,3Display resolution
Dimensions* with stand
(inches)
1,682 × 903 × 405
66
1
/
4
× 35
5
/
8
× 16
without stand
(mm)
(inches)
1,682 × 875 × 100
66
1
/
4
× 34
1
/
2
× 4
wall-mount hole pattern
(inches)
400 × 300
15
3
/
4
× 11
7
/
8
wall-mount screw size
Mass *102.3/46.4b)l(/)gk(with stand
99.2/45.0b)l(/)gk(without stand
Connecting CablesOptional accesories
Support Belt Kit
Camera and Microphone Unit: CMU-BR200/CMU-BR100
USB Wireless LAN Adapter: UWA-BR100
Passive 3D Glasses: TDG-500P
SimulView™ Passive Glasses: TDG-SV5P
32ºF - 104ºF (0ºC - 40ºC)Operating temperature
0.20 W
(mm)
(mm)
M6 (8-12 mm)
CHECKING THE ACCESSORIES
Remote Control (1) *1
One-touch Remote Control (1) *1
Size AAA Batteries (4)
Under Cover (1)
Cable Clamper (1)
Table-Top Stand (1) *2
Fixing screws for Table-Top Stand
(M5 × 12) (4)
Passive 3D Glasses (4)
Operating Instructions and other documents
*1
Please refer to the model name printed on the
remote control.
*2Assembling the Table-Top Stand is required.
Refer to the supplied Table-Top Stand leaet to
assemble the Table-Top Stand.

XBR-65X900A 2
SECTION 1 - SPECIFICATIONS AND LAYOUTS
SMART CORE BLOCK
HIF Board
HSF - LM Board
Bluetooth
Module
POWER BOARD
(NETWORK)
WLAN MODULE ASSEMBLY
HW Board
WLAN
Module
POWER BOARD
(E- LD)
TS BOARD
MAIN BOARD
(BAFS/BAF2S)
POWER
SUPPLY
BOARD
(G8)
SWITCH UNIT
CX/CX2 BOARD*
POWER
SUPPLY
BOARD
(G6)
TCON
POWER BOARD
(NETWORK)
BOARD LAYOUT
XBR-65X900A
*CX/CX2 only included in models with
BAFS Board (Serial No. 1800001 - 6010000).

XBR-65X900A 3
SECTION 1 - SPECIFICATIONS AND LAYOUTS
WIRE DRESSING
XBR-65X900A SMART CORE BLOCK
*CX/CX2 Board wire only included in models with
BAFS Board (Serial No. 1800001 - 6010000).

XBR-65X900A 4
DIAGNOSING THE ERROR
Before servicing the Television:
1. Verify the TV has the symptom the customer indicated.
2. Check to see if the latest Software is installed.
a. If not, install the latest version.
3. Determine the replacement part required.
VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the number of
times the error occurred. This is helpful in conrming past occurrences of an
error and for determining if an error is intermittent when the customer is not
sure what is causing the television to shut down. If the screen displays a “0”,
no error has occurred.
1. Press
POWER
to turn on the TV and then turn it off again.
2. Press the following buttons on the Remote Commander within 1
second of each other:
DISPLAY
Channel 5Volume
-
POWER
NOTE: This differs from accessing Service Adjustments Mode (Volume +).
SECTION 2 - TROUBLESHOOTING
Self Diagnosis
Supported model
SELF CHECK
000 RESERVED --------------------- ------------------------------------------ 00
000 RESERVED --------------------- ------------------------------------------ 00
002 MAIN_POWE --------------------- ------------------------------------------ 00
003 DC_ALERT --------------------- ------------------------------------------ 00
003 AUD_PROT --------------------- ------------------------------------------00
003 HDMI_EQ --------------------- --------------------- --------------------- 00
003 TU_DEMOD --------------------- --------------------- --------------------- 00
004 VLED --------------------- ------------------------------------------00
004 LD_ERR --------------------- ------------------------------------------00
005 HFR_ERR --------------------- ------------------------------------------ 00
005 TCON_ERR 120123132522 120123113645--------------------- 02
005 P_ID-ERR --------------------- --------------------- --------------------- 00
006 BACKLITE --------------------- ------------------------------------------00
007 TEMP_ERR --------------------- --------------------- --------------------- 00
007 FAN_ERR --------------------- ------------------------------------------00
010 EMITTER --------------------- --------------------- --------------------- 00
101 VPC_WDT --------------------- --------------------- --------------------- 00
102 MEPS_WDT --------------------- ------------------------------------------ 00
103 HOST_WDT --------------------- ------------------------------------------ 00
104 STBY_WDT --------------------- ------------------------------------------00
00345 000333 06789
Total operation time by hour (MAX:65535)
Boot count (MAX:65535)
Panel operation time by hour (MAX:65535)
Total operation time by hour (MAX:65535)
Boot count (MAX:65535)
Panel operation time by hour (MAX:65535)
StandBy LED
Blink Count
Diagnosis
Item
Date and Time Display*
Error Count
(00-99)
*Format of Error History = YYMMDDhhmmss example 120123132522= Jan 23, 2012 13:25:22 (1:25:22PM)
NOTE: Date and time must be set for this to work.
SAMPLE SELF CHECK DIAGNOSIS PAGE

XBR-65X900A 5
SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
1. Confirm the symptom from the customer. Red Dot: (Primary) Most likely defective part.
2. Select that symptom from the chart. Blue Triangle: (Secondary) Possible defective part.
3. Bring the primary component listed for that symptom.
5. Chart Color Code.
LAN Power Audio
2X 3X 4X 5X 6X 7X 8X No
WIF
I
Dead setNo
Video
Whole
Screen
Distortion
Isolated
Area
Distortion
No Audio
MAIN BOARD 
*▲ ▲ ▲ ▲
 
POWER SUPPLY   
LCD Panel
 
TCON  
▲ ▲
SERVICE BULLETIN 
▲
SOFWARE UPDATE  
WLAN

Video Protection Modes
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board

*Immediate Shutdown After Power ON & 7X
*NOTE: REFER TO LCD PANELS SERVICE MANUAL IN
REFERENCE LIBRARY DATABASE FOR CORRECT
REPLACEMENT PARTS BASED ON SERIAL NUMBER.
To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Servicer Portal at
http://www.sony.com/asp.

XBR-65X900A 6
SECTION 2 - TROUBLESHOOTING
FLOWCHARTS AND DIAGRAMS
OVERALL BLOCK DIAGRAM / BAFS
IR RX
OPTICAL
SENSE
POWER SUPPLY
POWER SUPPLY
VIDEO 2 CVBS/COMP
VIDEO 1 CVBS
RF
HDMI 1
LCD PANEL
HFR
TCON
L
R
OPTICAL
AUDIO OUT
HDMI 3
TUNER
ETHERNET
USB2.0
HDMI 2
LVDS
AC IN
USB HUB
LED DRIVE
LD
L
R
USB2.0
MAIN BOARD
IC9001
HP/LINE OUT
HDMI
SWITCH
EQ
USB3.0
BAFS
G8 G6
BLUETOOTH
HSF HIF
WIFI
SMART CORE
SWITCH
UNIT TS
A/V
DECODER
VIDEO
PROCESS
SUB-
WOOFER
AMP
HDMI 4
CX/CX2
AMP
HW HUS
IC9000
LVDS

XBR-65X900A 7
SECTION 2 - TROUBLESHOOTING
OVERALL BLOCK DIAGRAM / BAF2S
IR RX
OPTICAL
SENSE
POWER SUPPLY
POWER SUPPLY
VIDEO 2 CVBS/COMP
VIDEO 1 CVBS
RF
HDMI 1
LCD PANEL
HFR
TCON
L
R
OPTICAL
AUDIO OUT
HDMI 3
TUNER
ETHERNET
USB2.0
HDMI 2
LVDS
AC IN
USB HUB
LED DRIVE
LD
L
R
USB2.0
MAIN BOARD
IC9001
HP/LINE OUT
HDMI
SWITCH
EQ
USB3.0
BAF2S
G8 G6
BLUETOOTH
HSF HIF
WIFI
SMART CORE
SWITCH
UNIT TS
A/V
DECODER
VIDEO
PROCESS
SUB-
WOOFER
AMP
AMP
HW HUS
IC9000
LVDS
HDMI 4 HDMI
EQ

XBR-65X900A 8
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
BL_ERR
LD_ERR
BL_ON
1
2
3
4
AC IN (N)
AC IN (L)
1
3
CN6402
CN6401
CN6001
AC-L
3
AC-N
1
1
2
3
4
CN6102
CN6602
3
1
CN6101
VLED_VCC
GL_CTRL
VLED_GND
LD_ERR
1~4
7~9
11
12
REG_12V
14
E-LD
BOARD
DIGITAL_STBY
CN6601
2
5
AU_GND
24
25
TCON_12V
28
STBY3.3V
TCON_GND
AC_OFF_DET
BL_ERR
3
DIGITAL_STBY
REG_12V
26
27
GND
REG 12V
5
6
5
6
CN9101
BAFS/BAF2S
G8
MAIN POWER AND
CONVERTER
MAIN BOARD
PFC, PRI_VCC AND
STANDBY
POWER SUPPLY
6SENSE GND
BL_ON
6~11 GND
12~17
18~20
21~23
TCON_ON
STBY GND
POWER_ON
CN4803
20
5
4
TCON_12V
1
STBY3.3V
AC_OFF_DET
BL_ERR
DIGITAL_STBY
REG_12V
3
2
BL_ON
6~8
GND
18
12~14
TCON_ON
POWER_ON
19
REG_12V (AU) 1~3
GND (AU) 4~6
5
4
20
G6

XBR-65X900A 9
SECTION 2 - TROUBLESHOOTING
*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 27.
NO POWER FLOWCHART
No Power
Is Standby LED
blinking?
No
Yes
No
See Stanby
LED Blinking
Flowchart
Yes
Does red
Standby LED on
front panel light?
High (>2.5V)
on Pin 1 of CN6101
on Power Supply?
Yes
No
Main Board*
Press power
button while
monitoring Pin 7
of CN6601 on
Power Supply
Board.
High (3.3V)
appears
momentarily?
Yes
No
Power Supply
Board*
Power Supply
Board* Power Supply
Board*
Remove AC power and
wait at least 30
seconds before
reapplying.

XBR-65X900A 10
SECTION 2 - TROUBLESHOOTING
*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 27.
STANDBY LED BLINKING FLOWCHART
Protect
Shutdown.
Standby LED
Blinking
No
YesPower Supply
Board*
No
Yes
2X
Main Board*3X
4X
No
Yes
5X
Yes
6X
No 7X
Immediately
LCD Panel*TCON*
(LCD Panel)
Yes
No After a while
Check ventilation
10X HEM3 Board8X See Triage Chart
Main Board*
Power Supply
Board*
No
Yes

XBR-65X900A 11
SECTION 2 - TROUBLESHOOTING
*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 27.
NO VIDEO FLOWCHART
No Video
Backlights
turned on?
Unplug LVDS
connector with
unit off. Turn unit
back on.
Test patterns
display on
screen?
Yes
No TCON*
(LCD Panel)
Sony logo
appears
momentarily?
No
Main Board*
No
Yes
Yes
Main Board*
Locate
CN6401 on
Power Supply
Board.
Zero volts at
Pin 5?
TCON*
(LCD Panel)
Yes
No Zero volts at
Pin 3?
Yes
Main Board*
No
LCD Panel*

XBR-65X900A 12
SECTION 2 - TROUBLESHOOTING
*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 27.
VIDEO DISTORSION FLOWCHART
Video Distortion
Is distortion
across entire
screen?
Any horizontal
lines?
No
No
Yes
Yes
Improper or
missing
colors?
Yes
Main Board*
No Vertical lines
or bars?
No
Yes
Lines
move when
wide-mode
changed?
Yes
No
TCON*
(LCD Panel)
Main Board*
LCD Panel*
Any single or
isolated vertical
lines?
YesLCD Panel*
More than 1
vertical band?
No
YesTCON*
(LCD Panel)

XBR-65X900A 13
SECTION 2 - TROUBLESHOOTING
NO 3D VIEWING
Double images
displayed on
screen?
Yes
Main Board*
No
Press “3D” button on
Remote Commander
and select
“Simulated 3D”.
Passive 3D
Glasses
View image with
Passive 3D
Glasses.
Double images
become one?
Yes
3D OK
No
3D Not Working
*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 27.

XBR-65X900A 14
SECTION 3 - REPAIR INFORMATION
REPAIRING THE TV
If the latest Software does not correct the issue, complete the following:
1. Verify the television has the symptom the customer indicated.
2. Replace part causing the error.
3. Install the latest version of Software (Required for ALL repairs).
4. Perform the required service adjustments and checks.
5. Verify the repair resolved the issue.
REMOVING THE TABLE-TOP STAND
AND COVER UNDER
1. Place TV face down on a soft and at surface.
2. Grasp Cover Under as shown, then carefully pull upwards to release the
locking clips and lift to detach.
3. Remove 4 screws from Table-Top Stand and pull down as shown to
detach from Rear Cover.
REMOVING THE REAR COVER
1. Remove 1 screw from AC Cover and disconnect the AC Power Cord.
HOLD
2. Remove 5 Screw Caps from the top of the Rear Cover.
3. Locate and remove all screws from the Rear Cover.
4. Grasp Rear Cover as shown and lift to detach.

XBR-65X900A 15
SECTION 3 - REPAIR INFORMATION
4. Remove 13 screws from the Main Board, then lift to detach.
5. Install the new Main Board and screws.
6. Reconnect the LVDS, FFC cables, and all other connectors.
CAUTION: Make sure the black line is aligned to the connector before
locking.
a. Reconnect LVDS cables in the connectors and press down the 2
locking clips to secure position.
b. Lift the black locking bar to reconnect the FFC Cable and secure
the connector.
7. Reconnect remaining connectors.
REPLACING THE MAIN BOARD
The Main Board used in this model is available for repair. For Part Number
information refer to Section 4 - Exploded View/Part Number Information on
page 27.
1. Disconnect LVDS and FFC cables.
a. Press down the 2 locking clips and pull LVDS cables to release.
b. Lift the black locking bar and pull FFC cable to release.
2. Disconnect remaining connectors.
3. Slide Bracket Side and Bracket Under to remove from Main Board.
Side BracketSide Bracket
Under Bracket
Under Bracket

XBR-65X900A 16
SECTION 3 - REPAIR INFORMATION
8. Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the Sony
website.
a. Insert the USB device with the latest Software into the TV.
b. Press
POWER
to turn on the TV.
c. Wait until the Software update is complete and the TV turns OFF.
9. Access Service Mode by pressing the following buttons within 1 second
of each other:
DISPLAY
Channel 5Volume +
POWER
10. When the DIGITAL Menu appears, press 2until 002 MODEL
category displays.
11. Press 1until 001 DEST item displays.
DIGITAL SERVICE
002 MODEL
001 DEST ATSC-UC_BASE
CAUTION: If the incorrect Destination Data Value is selected, it may
corrupt the Sofware requiring a Main Board replacement.
12. Select the correct destination of the TV , press 3to increase or 6
to decrease the data value (Use the table below for reference).
Model Name Desnaon Data Value
XBR-65X900A US/CND ATSC-UC_BASE
13. Press
MUTING
then 0to save the changes.
DIGITAL SERVICE
002 MODEL
001 DEST
WRITE
ATSC-UC_BASE
14. Press 1until 002 MODELNAME displays.
DIGITAL SERVICE
002 MODEL
002 MODELNAME_________
15. Press 3until the model displayed matches the model of the TV.
CAUTION: The Model Name can only be selected once. Be sure
to verify the information is correct before saving the changes.
16. Press
MUTING
then 0to save the changes.
DIGITAL SERVICE
002 MODEL
002 MODELNAMEXBR-65X900A
WRITE
17. Locate the Serial Number for the TV on the side of the Rear Cover.
MODEL NO
XBR-65X900A
SERIAL NO
1800001