Sony KLV-19T400A / KLV-19T400G / KLV-19T400W Service Manual ▷ View online
– 4 –
KLV-19T400A,T400G,T400W
RM-GA013
1-5. Lead Free Information
The circuit boards used in these models have been processed
using Lead Free Solder. The boards are identified by the LF
logo located close to the board designation.
The circuit boards used in these models have been processed
using Lead Free Solder. The boards are identified by the LF
logo located close to the board designation.
The servicing of these boards requires special precautions. It
is strongly recommended to use Lead Free Solder material in
order to guarantee optimal quality of new solder joints. Lead
Free Solder is available under the following part numbers:-
is strongly recommended to use Lead Free Solder material in
order to guarantee optimal quality of new solder joints. Lead
Free Solder is available under the following part numbers:-
Due to high melting point of Lead Free Solder, the soldering
iron tip temperature needs to be set to 370 degrees
centigrade. This requires soldering equipment capable of
accurate temperature control coupled with a good heat
recovery characteristics.
iron tip temperature needs to be set to 370 degrees
centigrade. This requires soldering equipment capable of
accurate temperature control coupled with a good heat
recovery characteristics.
For more information on the use of Lead Free Solder,
please refer to
please refer to
http://www.sony-training.com
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Figure 2: LF logo
Figure 3: LF logo on circuit board
– 5 –
KLV-19T400A,T400G,T400W
RM-GA013
SECTION 2
SELF DIAGNOSTIC FUNCTION
2.0 sec
2.0 sec
0.3 sec
0.3 sec
2-1. Overview of Control Buttons
LED Type Description
Remark
Status
Display
Power LED
Remark
POWER
Green: One LED Green lights at power ON.
STANDBY
Red: One LED
Red lights during standby.
Timer
Green/Amber
: Two LEDs
: Two LEDs
Green lights during Picture
OFF and amber lights
during Timer activation.
OFF and amber lights
during Timer activation.
POWER ON Green lights
OFF
in a normal state.
STANDBY
OFF
Red lights
Microcomputer is
in a sleep state.
Failure
Classify the
trouble causes by
the no. of red
blinking.
trouble causes by
the no. of red
blinking.
Standby LED
Microcomputer is
2-2. LED Display Specification
2-3. LED Display Control
2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the
cause by using the blinking patterns as indicated below.
When safety shutdown occurs, Standby LED display reports the
cause by using the blinking patterns as indicated below.
Example:
The figure above shows LED display when
SHUTDOWN is caused by audio failure. It repeats
flashing for a specified number of times in 0.3sec/
cycle and has a 2 seconds interval of lighting off.
Please note that a 2 seconds interval of lighting off
is fixed regardless of abnormal state types.
SHUTDOWN is caused by audio failure. It repeats
flashing for a specified number of times in 0.3sec/
cycle and has a 2 seconds interval of lighting off.
Please note that a 2 seconds interval of lighting off
is fixed regardless of abnormal state types.
2-5. Viewing the Service Diagnosis Display
1. While TV on standby mode, press the following sequence on
1. While TV on standby mode, press the following sequence on
the Remote commander.
(if wrong key is pressed or passed 3 seconds during each
process, cancel entering the self-diagnosis display.)
process, cancel entering the self-diagnosis display.)
2. To Exit, press the <I/
1
> key.
S E L F C H E C K
0 0 2 M A I N _ P O W E R _ E R R O R 0 0
0 0 3 5 V _ P O W E R _ E R R O R
0 0 3 5 V _ P O W E R _ E R R O R
0
0
0 0 4 A U D
I
O _
E R R O R
0
0
0 0 5 B A C K _
L
I
G H T
_ E R R O R
0
0
0 0 6 T E M P _ E R R O R
0
0
1
2 3 4 5 - 0 9 8
7
6
-
0
1
2
3
4
12345: Total operation time by hour (0-65535)
09876: Boot count (0-65535)
01234: Panel operation time by hour (0-65535)
002: LED blinking times
MAIN_POWER_ERROR:
Detection name
00: Error Count (00-99)
Channel Power
Volume
Menu
Remote
Sensor
Sensor
Power
Standby
Indicat
Standby
Indicat
Timer
Indicator
Indicator
TV/
Video
Video
On screen
display
Channel 5
Volume (-)
POWER
– 6 –
KLV-19T400A,T400G,T400W
RM-GA013
Blinking times
Detection items
Countermeasure
2
Main power failure
Replace either/both
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
3
5V power failure
Replace either/both
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
4
Audio failure
Replace either/board.
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
z
Speaker
z
Woofer
5
Back light failure
Replace either/board.
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
6
Internal temperature
Replace GT board (19”)/ GPT Board (26”/ 32”)
failure
7
SMIC error
Replace BT Board
2-6. STANDBY LED ERROR DISPLAY
Note: Each of the above blinking repeats every 2 seconds.
– 7 –
KLV-19T400A,T400G,T400W
RM-GA013
SECTION 3
DISASSEMBLY
3-2. Stand Assy Removel (19T400A/T400G)
3-3. Rear Cover Removal
3-4. GT Board Removal
3-6. Main Bracket Removal
3-5. BT, KT and J Boards Removal
4
Main Bracket
AC Bracket
1
Ten screws
(BVTP2 4 X 16)
3
Two screws
(+PSW M3 X 5)
2
Two screws
(+PSW M3 X 5)
9
BT board
2
J board
(19T400W)
5
KT board
(19T400W)
4
Three connectors
6
Side Jack Bracket Assy
8
Five connectors
7
Nine screws
(+BVST 3 X 8)
1
Three screws
(+BVST 3 X 8)
3
Four screws
(+BVST 3 X 8)
4
GT board
2
Five connectors
3
Five connectors
1
Eight screws
(+BVST 3 X 8)
4
Lift to remove
Rear Cover
1
Six screws
(BVTP2 4 X 16)
2
One screw
(+PSW M3 X 8)
3
Five screws (+BVTP 3 X 12)
(19T400W)
Three screws (+BVTP 3 X 12)
(19T400A/T400G)
3
Stand assy
2
Four screws
(BVTP2 4 X 16)
3
Stand assy
1
Four screws
(+PSW M5 X 16)
2
Four screws
(BVTP2 4 X 16)
3-1. 3D Woofer and Stand Assy Removal
(19T400W)
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