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– 4 –

1-5. LED 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

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mm

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7

  Figure 2:  LF logo

  Figure 3:  LF logo on circuit board

– 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.

 STANDBY

 

Red: One LED

 

Red lights during standby.

 Timer

  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

OFF

Red lights

Microcomputer is

in a sleep state.

Failure

Classify the 
trouble causes by
the no. of red.

Standby LED

Microcomputer is

PICTURE  

OFF/

TIMER

REMOTE
SENSOR

LIGHT

SENSOR

STANDBY

POWER

MENU TV/VIDEO

VOLUME

CHANNEL

POWER

– 6 –

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.

Blinking times

Error

Countermeasure

2

DC_DET (12V Main Voltage)

Replace

 

either/both

z

BG1 Board

z

GD Board (20”)

z

GP Board (26" and 32")

z

G2 Board (37”)

z

IP5 Board (40”, 46”)

3

DC_ALERT 1

Replace BG1 board.

4

DC_ALERT 2

Replace BG1 board.

5

DC_ALERT 3

Replace

 either/both

z

BG1 board

z

Panel

6

BACKLIGHT/

Replace 

either/all

z

GD Board (20”)

INVERTER ERROR

z

GP Board (26” and 32”)

z

G2 Board (37”)

z

IP5 Board (40”, 46”)

z

BG1 Board

z

Panel

7

INTERNAL TEMP

Replace 

either/both

z

GP board

ERROR

z

BG1 board

z

Panel

8

AUDIO ERROR

Replace either/all

z

GD Board (20”)

z

GP Board (26” and 32”)

z

G2 Board (37”)

z

IP5 Board (40”, 46”)

z

BG1 Board

z

Speaker

9

Not used for GA

—

10

Not used for GA

—

11

NVM ERROR

Replace either/all

z

BG1 Board

z

GP board

12

IIC ERROR

Replace BG1 board.

13

BALANCER ERROR

Replace

 either/all

z

IP5 Board (40”,46”)

z

BG1 Board

z

Panel

14

HDMI ERROR

Replace BG1 board

– 7 –

5 

Lift to remove Rear Cover

1 

Eighteen screws

 

(BVTP2 4 X 16)

3 

Two screws

 

(+PSW M3 X 5)

2 

Two screws

 

(+BVTP 3 X 12)

4 

One screw

 

(PSW 5 X 8)

2

 Stand assy

4

 Under Bar (M) Assy

1

  Three screws

 

(+PSW 5 X 16)

3 

One screw

 

(BVTP2 4 X 16)