Sony KDL-32R420B / KDL-40R470B Service Manual ▷ View online
KDL-32R420B/40R470B 13
SECTION 3 - REPAIR INFORMATION
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 17.
1. Slide the Side Bracket and Under Bracket to detach from Main Board.
Side
Bracket
Side
Bracket
Under Bracket
Under Bracket
2. Locate and disconnect the connectors. Then remove all screws from
the Main Board and lift to detach.
3. Install the new Main Board, connectors and screws.
4. 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. Insert the USB device with the latest Software into one of the TVs’
USB ports.
b. Connect TV to AC power.
c. Wait at least 20 seconds.
d. Press
I/0
on the TV to turn it ON.
e. Wait until the Software update is completed.
5. To access
Service Mode, turn TV ON and OFF again then press the
following buttons within 1 second of each other:
DISPLAY
Channel
5
Volume
+
I/0
>>
Self diagnosis history
>>
Panel Selection
Wide Band Tuning
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
SERIAL NUMBER EDIT
MODEL NAME EDIT
TEST RESET
MODEL NAME EDIT
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
KDL-32R420B/40R470B 14
SECTION 3 - REPAIR INFORMATION
6. Press
until
Panel Selection is selected.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
SERIAL NUMBER EDIT
MODEL NAME EDIT
TEST RESET
MODEL NAME EDIT
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
7. Press
or
to select the correct Panel Code for the TV model.
(Use the table below for reference).
Model Name
Panel Code
KDL-32R420B
IS4S320DNG0101
KDL-40R470B
NS4S400DND0101
CAUTION: Select ONLY the correct Panel Code.
8. Locate the Serial Number for the TV on the side of the Rear Cover.
MODEL NO
KDL-40R470B
SERIAL NO
5000001
9. Press
until
SERIAL NUMBER EDIT is selected.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
MODEL NAME EDIT
TEST RESET
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
10. Press
to be able to select the first digit.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
MODEL NAME EDIT
TEST RESET
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
_ _ _ _ _ _ _
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
KDL-32R420B/40R470B 15
SECTION 3 - REPAIR INFORMATION
11. Press
or
to select numbers and then
to move to the next
digit until Serial Number is complete.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
MODEL NAME EDIT
TEST RESET
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
5000001
CAUTION: The Serial Number can only be selected once. Be sure
to verify the information is correct before saving the changes.
to verify the information is correct before saving the changes.
12. When the complete Serial Number displays, press
.
13.
On the confirmation screen, press to select
YES and then
.
Input Data Correct?
Yes
No
Selected text displays in black
14. Press
until
MODEL NAME EDIT is selected.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
MODEL NAME EDIT
5000001
15. Press
to be able to select the first character.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
MODEL NAME EDIT
_ _ _ _ _ _ _ _ _ _ _
5000001
KDL-32R420B/40R470B 16
SECTION 3 - REPAIR INFORMATION
16. Press
or
to select characters and then
to move to the next
space until Model Name is complete.
NOTE
: Make sure to include dash in Model Name.
>>
Self diagnosis history
>>
Wide Band Tuning
>>
LVDS Spectrum (%)
29
Tuning System
Auto
Status Digital RF Information
Off
Off
Low of HPD
5
UART Selection
Factory
TEST RESET
[</>]Set [Home] Exit
Service Mode
NS4S400DND0101
Status Information
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
<[
]>
Off
Panel Selection
SERIAL NUMBER EDIT
MODEL NAME EDIT
KDL-40R470B
5000001
CAUTION: The Model Name can only be selected once. Be sure
to verify the information is correct before saving the changes.
to verify the information is correct before saving the changes.
17. When the complete Model Name displays, press
.
18.
On the confirmation screen, press to select
YES and then
.
Input Data Correct?
Yes
No
Selected text displays in black
19. Press
I/0
to exit
Service Mode.
REMOVING THE SPEAKERS
1. Disconnect the connector from Speakers and lift as shown to detach.
REPLACING THE SWITCH UNIT
1. Disconnect the connector from the Switch Unit and lift as
shown to remove.
2. Install the new Switch Unit and its connector.
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