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– 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

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7

  Figure 2:  LF logo

  Figure 3:  LF logo on circuit board

1-6. Attachment & Detachment of MDF61 Connector
a) Insertion

(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

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. 

Unlock

– 5 –

PICTURE OFF/

TIMER

REMOTE/LIGHT SENSOR

STANDBY

POWER

MENU TV/VIDEO

VOLUME

CHANNEL

POWER

2-4. LED Pattern
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 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 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

   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 
causes by
the no. of red 
blinking.

Standby LED

Microcomputer is

– 6 –

Blinking times

Error

Countermeasure

2

DC_DET (12V Main Voltage)

Replace

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

 BG1 board

ERROR

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

9

Not used for GA

—

10

Not used for GA

—

11

NVM ERROR

Replace BG1 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.

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 

Sixteen screws
(+BVTP2 4 X 16)

3 

Two screws
(+PSW M3 X 5)

2 

Two screws 
(+BVTP 3 X 12)

4 

Four screws
(+PSW M5 X 12)

2 Stand assy

1

  Three screws

 

(+PSW M5 X 20)

3 

Switch Unit 

1

2 

Lift tabs to remove

2 

IP5-40S board

1 

Six screws
(+BVST 3 X 8)

 

Main Bracket

4 

BG1 board

Bracket Side Jack Assy

3 

Remove connectors

 

Two screws

  (+BVST 3 X 8)

2 

Nine screws

  (+BVST 3 X 8)

1 

One screw

  (+PSW M3 X 5)

8 

Four screws
(+BVTP2 4 X 16)

Frame Bottom

3 

Two screws
(+PSW M5 X 8)

1 

4 

One screw
(+PSW M4 X 8)

4

One screw
(+PSW M4 X 8)

Frame, spine (L)

2 

T

6

One screw
(+BVTP2 4X16)

6

One screw
(+BVTP2 4X16)

wo screws

(+PSW M5 X 8)

2

Two screws
(+PSW M5 X 8)

5 

Two screws
(+PSW M4 X 8)

5

Two screws
(+PSW M4 X 8)

7 

One screw
(+BVST 3 X 8)

3 

Two screws
(+PSW M5 X 8)

Frame Spine (R)

One screw
(+BVTP2 4 X 16)

Cover Under