Sony XBR-55X900A Service Manual ▷ View online
XBR-55X900A 25
SECTION 3 - REPAIR INFORMATION
20. Install the Software.
a. Press
POWER
to turn TV OFF.
b. Wait 5 seconds and insert the USB device with the latest
Software into the TV.
NOTE:
Display will not be shown on the TV during the update.
If the USB drive has an indicator light, it will start blinking.
CAUTION: Must use the same version as the first update.
c. Wait aproximatelly 5 minutes, until TV turns ON and a successful
update message appears.
d. Remove USB device.
REPLACING THE SWITCH UNIT
1. Disconnect 2 connectors from the Switch Unit, then remove 2 screws
and lift to detach.
2. Install the new Switch Unit, screws and connectors.
REMOVING THE WOOFER SPEAKER
1. Disconnect connector from Woofer Speaker, remove 5 screws and lift to
detach.
2. Refer to these instructions to remove the opposite Woofer Speaker.
REMOVING THE WLAN MODULE AND HW BOARD
1. Disconnect connector, remove 2 screws and lift to detach the Bracket
Module.
Bracket Module
Bracket Module
2. Release 3 locking clips to detach the Cover Module from Bracket Under,
then remove HW Board.
Bracket
Under
Bracket
Under
Cover
Module
Cover
Module
HW Board
HW Board
3. Release 3 locking clips to detach the WLAN Module.
WLAN
Module
WLAN
Module
XBR-55X900A 26
SECTION 3 - REPAIR INFORMATION
REMOVING THE SIDE SPEAKERS
1. Remove 14 screws from Speaker Cover, lift as shown to disconnect
connector from PWB Board, then slide it through the Speaker Cover
opening to detach.
opening to detach.
NOTE: Use a 7mm Metric Nut Driver to remove:
Spacer (SP-RC), HEX.
Spacer (SP-RC), HEX.
2. Locate and remove 2 screws from PWB Board, then release harness to
detach.
PWB Board
PWB Board
3. Carefully disconnect all remaining connectors from PWB Board and lift to
detach.
4. Lift Speaker (80MM) to detach. Release 2 locking clips to remove
Speaker Bracket and lift Speaker Ornament to detach.
Speaker (80MM)
Speaker (80MM)
Speaker
Bracket
Speaker
Bracket
Speaker
Ornament
Speaker
Ornament
5. Remove 2 screws from Speaker (18MM) and lift to detach.
Speaker (18MM)
Speaker (18MM)
6. Remove 2 screws from TW Bracket and lift to detach.
TW Bracket
TW Bracket
7. Lift Loud Speaker to detach. Release 2 locking clips to remove Speaker
Bracket and lift Speaker Ornament to detach.
Loud Speaker
(Passive Radiator)
Loud Speaker
(Passive Radiator)
Speaker
Bracket
Speaker
Bracket
Speaker
Ornament
Speaker
Ornament
8. Refer to these instructions to remove the opposite Side Speakers.
XBR-55X900A 27
SECTION 3 - REPAIR INFORMATION
REMOVING THE SMART CORE BLOCK
1. Locate and remove 7 screws shown below. Lift Neck Brackets and
Under Bracket (SC) to detach from Rear Cover.
Neck
Brackets
Neck
Brackets
Under
Bracket (SC)
Under
Bracket (SC)
2. Disconnect connector and hold Smart Core Block as shown, then twist
it downwards to release.
3. Unclamp 2 side locking clips from Lid, SC and lift to detach.
Lid, SC
Lid, SC
4. Release the HSF Board connector from the locking clip to disconnect
it and lift to detach. Then, disconnect and remove HSF Board, FPC-BT
and Bluetooth Module.
and Bluetooth Module.
HSF Board
HSF Board
Bluetooth
Module
Bluetooth
Module
FPC-BT
FPC-BT
5. Locate HIF Board and slide upwards to detach.
HIF Board
HIF Board
REMOVING THE TS BOARD
1. Locate the TS Board on the upper side of the TV, disconnect 1 connector
and remove 1 screw, then lift to detach.
TS Board
TS Board
XBR-55X900A 28
Components not identified by a part number or description
are not stocked because they are seldom required for routine
service.
The component parts of an assembly are indicated by the reference numbers in
the far right column of the parts list and within the dotted lines of the diagram.
NOTE: The components identified by shading and
!
mark are critical for safety.
Replace only with part number specified.
NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)
SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
TABLE-TOP STAND
1
4-471-530-01 STAND
2
4-462-872-01
NECK, STAND
REF. NO.
PART NO.
DESCRIPTION
2
1
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