Sony KDL-50R555A / KDL-60R555A / KDL-70R555A Service Manual ▷ View online
KDL-50R555A/60R555A/70R555A 13
SECTION 2 - TROUBLESHOOTING
VIDEO DISTORTION FLOWCHART
Video Distortion
Is distortion
across entire
screen?
Any horizontal
lines?
No
No
Yes
Yes
Improper of
missing
colors?
Yes
Main Board*
No
Vertical lines
or bars?
No
Yes
Lines move
when wide-mode
changed?
Yes
No
LCD Panel*
Main Board*
LCD Panel*
Any single or
isolated vertical
lines?
Yes
LCD Panel*
More than 1
vertical band?
No
Yes
LCD Panel*
Uneven
brightness?
LCD Panel*
Yes
*For Part Number information, refer to
“Section 4 - Exploded View/Part Number Information” on page 22
.
KDL-50R555A/60R555A/70R555A 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 symptom.
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
1.
Place TV face down on a soft and flat surface.
2. Remove screws from Table-Top Stand (2 for 50” and 4 for 60”/70”) and
pull to detach from Rear Cover.
REMOVING THE REAR COVER
1. Remove all screws from the Rear Cover.
KDL-50R555A
KDL-70R555A
2. After removing all screws, lift the AC Cover to detach.
CAUTION: Make sure to remove the
Power Cord from AC Cover.
KDL-60R555A
KDL-50R555A/60R555A/70R555A 15
SECTION 3 - REPAIR INFORMATION
b. Lift the black locking bar and pull FFC cables to release.
2. Disconnect 2 connectors from the Antenna.
3. Disconnect remaining connectors.
4. Remove 5 screws and 1 Spacer from the Main Board, then lift to detach.
5. Install the new Main Board and screws.
3. Proceed according to model:
For 50” models:
Disconnect the AC Power Cord, then pull up the Rear Cover to detach.
Disconnect the AC Power Cord, then pull up the Rear Cover to detach.
For 60” and 70” models:
Slide the AC Power Cord through the AC Cover opening to remove, then
Slide the AC Power Cord through the AC Cover opening to remove, then
pull up the Rear Cover to detach.
REPLACING THE MAIN BOARD
The Main Board used in these models is available for repair. For Part
Number information refer to
Number information refer to
Section 4 - Exploded View/Part Number
Information on page 22.
1. Disconnect LVDS and FFC cables.
a. Lift the black locking bar and pull LVDS cables to release.
KDL-50R555A/60R555A/70R555A 16
SECTION 3 - REPAIR INFORMATION
6. Reconnect the LVDS, FFC cables, and all other connectors.
CAUTION: Make sure the black line is aligned to the connector before
locking.
locking.
a. Lift the black locking bar to reconnect and secure the LVDS cables.
b. Reconnect the FFC cables and close the black locking bar to
secure the connectors.
7. Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the
Instructions are included with the Software package on the
Sony
Authorized Service Portal
website.
a. Press
POWER
to turn on the TV.
b. Insert the USB device with the latest Software into the TV.
c. Press
HOME
to display the menu options.
d. Press
to select
Settings, then press
.
e. Press
/
to select
Setup.
f. Press
/
to select
Software Update, then press
.
g. Press
/
to select
USB, then press
.
h. During the Software update, the TV automatically restarts.
i. Series of different messages will appear on the TV set.
Please follow the on screen instructions.
NOTE:
An information LED may be flashing on the front bottom
of the TV.
j. After several minutes the TV may automatically restart again to
complete the update.
CAUTION: DO NOT TURN OFF THE TV OR UNPLUG THE
POWER CORD WHILE THE UPDATE IS IN PROGRESS.
k. Remove the USB device from the TV.
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