Sony KLV-22T550A / KLV-32T550A Service Manual ▷ View online
– 4 –
KLV-22, 32 T550A
RM-GA016
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
1-6. Attachment, Detachment & Confirmation of Lock
Condition of JST IBH Connector
(If applicable for these models)
(If applicable for these models)
Attention: This is a SAFETY CRITICAL PROCESS.
a) Attachment
(1) Press the center of the connector to insert it.
(2) Press position
(NG for red marking portion)
(NG for red marking portion)
(3) Prohibited matter (Refer Figure A~C explanation)
Figure A
Figure B
Figure C
Figure A: Do not press lock
portion.
Figure B: Do not press the
front side of the
connector.
connector.
Figure C: Do not press the side
of the connector.
– 5 –
KLV-22, 32 T550A
RM-GA016
b) Detachment
(1) Hold between the lock part and harness of socket.
Release the lock and pull out connector within 20
degree.
degree.
(2) Prohibited matter (Refer Figure D & E explanation)
Figure D: Do not pull out by holding the harness only.
Figure E: Do not pull out the connector when it does not
Figure E: Do not pull out the connector when it does not
release the lock.
Figure D
Figure E
Figure F
Figure G
c) Confirmation of Lock Condition
(1) Confirm the lock conditions. When lock is completed,
base and socket must be same line as shown in Figure
F and G.
F and G.
(2) NG Condition
It is NG condition when there are some gap between
base and socket such as in Figure H and I.
base and socket such as in Figure H and I.
Figure H
Figure I
Gap
Gap
– 6 –
KLV-22, 32 T550A
RM-GA016
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
Orange
: One Led
Amber lights
during Timer activation.
during Timer activation.
POWER ON
Timer LED
Green lights
OFF
in a normal state.
STANDBY
OFF
OFF
Red lights
Wake up
timer-ON
Sleep timer-ON
timer-ON
Sleep timer-ON
Wake up
timer-ON
Sleep timer-OFF
timer-ON
Sleep timer-OFF
Failure-OFF
Red flashes
LOCTOP 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
LOCTOP is
SECTION 2
SELF DIAGNOSTIC FUNCTION
2.0 sec
2.0 sec
0.3 sec
0.3 sec
2-1. Overview of Control Buttons
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.
Addtional information:
1. To refresh History of Error Note:
--> press < 8 > --> < 0 > key.
2. To refresh Histry of Panel Operation Time.
-->press < 7 > --> < 0 > key
--> press < 8 > --> < 0 > key.
2. To refresh Histry of Panel Operation Time.
-->press < 7 > --> < 0 > key
On screen
display
Channel 5
Volume (-)
POWER
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 4
5
V
_
P
O
W
E
R
_
E
R
R
O
R
0
0
0 0 6
B A
C
K
_
L
I
G
H
T
_
E R
R
O R
0
0
0 0 7
T E
M
P
_
E
R
R
O
R
0
0
0 0 8
A U
D
I
O
_
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)
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)
MAIN_POWER_ERROR:
Detection name
00: Error Count (00-99)
Power
Menu
Input
Select
Select
Volume
Channel
Remote
Sensor
Sensor
Timer
Indicator
Indicator
Power/
Standby
Indicator
Standby
Indicator
* Sleep timer is cancelled once TV goes to standby.
– 7 –
KLV-22, 32 T550A
RM-GA016
2-6. STANDBY LED ERROR DISPLAY
Blinking times
Detection items
Countermeasure
2
Main power failure
Replace either/both
z
BT2 board
z
GT2 board (22”)
z
GT3 board (32”)
4
5V power failure
Replace BT2 board.
8
Audio failure
Replace either/board.
z
BT2 board
z
GT2 board (22”)
z
GT3 board (32”)
z
Speaker
z
Woofer
6
Back light failure
Replace either/board.
z
BT2 board
z
GT2 board (22”)
z
GT3 board (32”)
7
Internal temperature
Replace either/both
z
GT2 board (22”)
failure
z
GT3 board (32”)
Note: Each of the above blinking repeats every 2 seconds.
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