DOWNLOAD Sony KLV-40Z450A / KLV-46Z450A / KLV-52Z450A Service Manual ↓ Size: 8.02 MB | Pages: 52 in PDF or view online for FREE

– 4 –

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 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:-

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.

For more information on the use of Lead Free Solder,
please refer to 

9

1

-

5

0

0

-

0

4

6

-

mm

m

m

m

m

m

m

m

3

.

0

Kg

5

2

.

0

0

2

-

5

0

0

-

0

4

6

-

7

m

4

.

0

Kg

0

5

.

0

1

2

-

5

0

0

-

0

4

6

-

7

m

5

.

0

Kg

0

5

.

0

2

2

-

5

0

0

-

0

4

6

-

7

m

6

.

0

Kg

5

2

.

0

3

2

-

5

0

0

-

0

4

6

-

7

m

8

.

0

Kg

0

0

.

1

4

2

-

5

0

0

-

0

4

6

-

7

m

0

.

1

Kg

0

0

.

1

5

2

-

5

0

0

-

0

4

6

-

7

m

2

.

1

Kg

0

0

.

1

6

2

-

5

0

0

-

0

4

6

-

7

m

6

.

1

Kg

0

0

.

1

7

  Figure 2:  LF logo

  Figure 3:  LF logo on circuit board

(1) Hold the center of a
     connector.

(2) Press the center of the 

 connector to insert it.

(3) Slide the slider to lock the
     connector. 

Lock

(1) Slide the slider to release      

the slider lock.

(2) Press the center lock tab
     to release the lock and pull
     the connector up. 

Unlock

– 5 –

2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the
cause by using the lightning patterns as indicated below.

Example:

The figure above shows LED display when
SHUTDOWN is caused by DC_ALERT 2. 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

 LED Typ e

       Description

Remark

Status

Display

Power LED

 

Remark

 POWER

  

Green: LED

    Green lights at power ON.

 STANDB

Picture Off/
Timer

Y

 

Red: One LED

 

Red lights during standby.

  Green/Amber
  : Two LEDs

   Green lights during Picture 
   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.

Standby LED

Microcomputer is

POWER 

MENU OK

INPUT 

SELECT 

VOLUME 

CHANNEL 

LIGHT

SENSOR

REMOTE
SENSOR 

  POWER

INDICATOR 

 STANDBY

INDICATOR  

     PICTURE OFF/

TIMER INDICATOR 

– 6 –

Blinking times

Error

Countermeasure

2

DC_DET (12V Main Voltage)

Replace either/both

z

BG1V board

z

G6 board(Power Unit)

3

DC_ALERT 1

Replace BG1V board.

4

DC_ALERT 2

Replace BG1V board.

6

BACKLIGHT/

Replace either/all 

   z

 BG1V board

INVERTER ERROR

z

 G6 board(Power Unit)

z

 D4Z(inverter unit for 40”,46”)

z

 D4 and/or D5(inverter unit for 52”)

7

INTERNAL TEMP

Replace either/both 

z

 BG1V board

ERROR

z

 G6(Power Unit)

8

AUDIO ERROR

Replace either/all

z

BG1V board

z

G6 board(Power Unit)

z

Speaker

z

AWF board

9

HFR ERROR

Replace either/both BG1V board and Panel.

10

RESERVED

—

11

NVM ERROR

Replace either/both

z

BG1V board

z

G6 board(Power Unit)

12

IIC ERROR

Replace BG1V board.

13

BALANCER ERROR

Replace either/all 

   z

 BG1V board

z

 Panel

z

 D4Z(inverter unit for 40”,46”)

z

 D4(inverter unit for 52”)

z

 G6(Power Unit)

14

HDMI ERROR

—

2-5. Standby LED Error Display
Perform below countermeasures according to Standby LED blinking times.

Note: Each of the above blinking repeats every 2 seconds.

– 7 –

5 

Lift to remove

 

Rear Cover

1 

Fifteen screws

 

(+BVTP2 4 X 16)

2 

Two screws

 

(+PSW M3 X 5)

3 

Two screws

 

(+BVTP 3 X 12)

4 

Four screws

 

(+PSW M5 X 8)

5 

Lift to remove

 

Rear Cover

1 

Nineteen screws

 

(+BVTP2 4 X 16)

2 

Two screws

 

(+PSW M3 X 5)

3 

Two screws

 

(+BVTP 3 X 12)

4 

Four screws

 

(+PSW M5 X 8)

5 

Lift to remove

 

Rear Cover

1 

Nineteen screws

 

(+BVTP2 4 X 16)

2 

Two screws

 

(+PSW M3 X 5)

3 

Two screws

 

(+BVTP 3 X 12)

4 

Four screws

 

(+PSW M5 X 8)

2

 Stand assy

1

  Four screws

 

(+PSW M5 X 16)

2

  Stand assy

1

  Four screws

 

(+PSW M5 X 16)

2

  Stand assy

1

  Four screws

 

(+PSW M5 X 16)