Sony KLV-40Z550A / KLV-46Z550A / KLV-52Z550A Service Manual ▷ View online
– 4 –
KLV-40, 46, 52 Z550A
RM-GA017
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
1-6. Attachment & Detachment of MDF61 Connector
a) Insertion
a) Insertion
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b
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9
1
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5
0
0
-
0
4
6
-
mm
m
m
m
m
m
m
m
3
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0
Kg
5
2
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0
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2
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0
0
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0
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2
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0
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7
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Kg
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2
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Kg
5
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0
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2
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8
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0
Kg
0
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1
4
2
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1
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Kg
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1
Kg
0
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1
7
Figure 2: LF logo
Figure 3: LF logo on circuit board
(1) Hold the center of a
connector.
connector.
(2) Press the center of the
connector to insert it.
(3) Slide the slider to lock the
connector.
connector.
Lock
b) Detachment
(1) Slide the slider to release
the slider lock.
(2) Press the center lock tab
to release the lock and pull
the connector up.
to release the lock and pull
the connector up.
Unlock
– 5 –
KLV-40, 46, 52 Z550A
RM-GA017
1-8. Removal of Switch Unit Procedure
1-7-1. REMOVAL (40", 46")
1-7-2. INSTALLATION (40", 46")
1-7-3. REMOVAL (52")
1-7-4. INSTALLATION (52")
1-7. REMOVAL AND INSTALLATION OF REAR COVER
Note:
Please refer to
Section 2 : Disassembley for screws informations.
Section 2 : Disassembley for screws informations.
1
a. Remove Screws.
b. Lift up the Rear Cover from bottom, as shown in
photo below to unlock the clamper.
a. Push Clamper Point (Back surface).
<TOP SIDE>
Clamper Point
b. Push as shown in photo and rotate arrow mark.
a. Push the position as shown in photo and
rotate arrow mark until unhook.
a. Remove Screws.
b. Lift up the Rear Cover , as shown in photo below to
b. Lift up the Rear Cover , as shown in photo below to
unlock the clamper.
Pay attention to
stand neck.
Scratch here
Scratch is ok, but
please pay attention to
operation.
please pay attention to
operation.
Clamper Here
Push This
Point
Push
Push
– 6 –
KLV-40, 46, 52 Z550A
RM-GA017
SECTION 2
SELF DIAGNOSTIC FUNCTION
2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the
cause by using the lightning patterns as indicated below.
cause by using the lightning patterns as indicated below.
Example:
The figure above shows LED display when
SHUTDOWN is caused by Main Power Error. 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 Main Power Error. 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.
2.0 sec
2.0 sec
0.3 sec
0.3 sec
2-1. Overview of Control Buttons
LED Typ e
Description
Remark
Status
Display
Power LED
Remark
POWER
Green: LED
Green lights at power ON.
STANDB
Picture Off/
Timer
Timer
Y
Red: One LED
Red lights during standby.
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
OF
OFF
F
Red lights
Red flashes
Microcomputer is
in a sleep state.
Failure
Classify the trouble
causes by the no.
of red blinking.
causes by the no.
of red blinking.
Standby LED
Microcomputer is
2-2. LED Display Specification
2-3. LED Display Control
AUS/HK
POWER
INDICATOR
CHANNEL
VOLUME
TEXT HOLD
INPUT SELECT
HOME
ENERGY SAVING SWITCH
ENERGY SAVING SWITCH
Picture Off/Timer
Standby Power
Light Sensor/
Remote Control
Sensor
– 7 –
KLV-40, 46, 52 Z550A
RM-GA017
Blinking times
Error
Countermeasure
2
DC_DET
Replace either/both
z
Power board
G6NS (40"), Power Unit (G7NS)
(46"/52")
G6NS (40"), Power Unit (G7NS)
(46"/52")
z
BA board
5
DC_ALERT
Replace BA board.
6
BACKLIGHT
Replace
z
D1N(40"/46"), D2N(40"/46"),
D3N(52"), D4N(52")
z
BA board
z
Panel
z
Power Board
G6NS (40"), Power Unit (G7NS)
(46"/52")
(46"/52")
7
INTERNAL TEMP
Replace either/both
z
BA board
8
AUDIO
Replace either/both
z
Power board
G6NS (40"), Power Unit (G7NS)
(46"/52")
G6NS (40"), Power Unit (G7NS)
(46"/52")
z
BA board
z
Speaker
10
DIGITAL FE/DE
Replace
z
BA board.
12
HRF
Replace
z
Panel
z
BA Board
13
BALANCER
Replace
z
BA board.
z
Power board
G6NS (40"), Power Unit (G7NS)
(46"/52")
(46"/52")
z
D1N(40"/46"), D2N(40"/46"),
D3N(52"), D4N(52")
14
T-CON
Replace
z
Panel.
z
BA Board
2-5. Standby LED Error Display
Perform below countermeasures according to Standby LED blinking times.
Note: Each of the above blinking repeats 2 seconds.
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