Sony KDL-50R550A / KDL-60R520A / KDL-60R550A / KDL-70R550A Service Manual ▷ View online
KDL-50R550A/60R520A/60R550A/70R550A 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
No
*For Part Number information, refer to
“Section 4 - Exploded View/Part Number Information” on page 23
.
KDL-50R550A/60R520A/60R550A/70R550A 14
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 23
.
KDL-50R550A/60R520A/60R550A/70R550A 15
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.
2. Remove 1 screw from AC cover and lift to detach.
CAUTION: Make sure to remove the
Power Cord from AC Cover.
KDL-50R550A/60R520A/60R550A/70R550A 16
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. 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 detach, and
Slide the AC Power Cord through the AC Cover opening to detach, and
lift the Rear Cover to remove
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 23.
1. Disconnect LVDS and FFC cables.
a. Lift the black locking bar and pull LVDS cable to release.
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