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– 9 –

- One blink is not used for self-diagnosis.

- Example
Diagnosis item

LED blinks

Lamp cover

3 times

Fan

4 times

LED ON : 0.3sec
LED OFF : 0.3sec

The POWER/STANDBY indicator blinking display is released by removing the plug from
the power or leaving for 2 minutes.

- In cases of malfunctions where it is not possible to determine the symptom such as when

the power goes off occasionally or when the screen disappears occasionally, there is a
screen display on whether the malfunction occurred or not in the past (and whether the
detection circuit operated or not) in order to allow confirmation.

- Quickly press the remote command button in the following order from the standby state.

Channel

Vol

Be aware that this differs from
the method of entering the
service mode (Vol +).

LED OFF

3.0sec

DISPLAY

5

-

POWER

1

: LAMP ERR

0

2

: LAMP TEMP ERR

1

3

: LAMP COVER

0

4

: FAN-ERR

0

5

: LAMP DRIVER

1

6

: LowB-ERR

0

7

: Audio-Prot

0

8

: D-OVP

0

9

: Panel ERR

0

10 : ATSC-OVP

0

101 : WDT

0

SELF CHECK

- Numeral "1" means a fault was detected one time
- Numeral "0" means that no fault was detected

– 10 –

- The results display is not automatically cleared. In case of repairs and after repairs, check

the self-diagnosis screen and be sure to return the results display to "0".

- If the results display is not returned to "0" it will not be possible to judge a new malfunction

after completing repairs.

1. Power off (Set to the standby mode)

2.

Channel

Vol

3. Channel

- When ending the self-diagnosis screen completely, turn the power switch OFF on the

remote commander or the main unit.

8

ENTER

DISPLAY

5

-

POWER

2

:

lamp temp over

When the inside temperature sensed with IC1700, IC1800, IC1900 and 
IC5066 mounted on S1 board, S2 board, S3 board and C board respectively 
exceed the threshold, DEM (Display Engine u-com) detects it and makes 
turn off the lamp. 

3

:

lamp cover

When the lamp cover is opened or harness from T board is off, DEM detects it 

and makes turn off the lamp

4

:

FAN 

When any FAN (FAN1~FAN5) is stopping or harness is not connected correctly, 
DEM detects it and makes turn off the lamp

5

:

Lamp Driver

When the ballast is not working with high voltage, DEM detects it and makes 
turn  off the lamp

6

:

Low B error

When the voltage converted on ASU DC-DC Converter D5V is low, TVM
(TV u-com) detects it and makes turn off the lamp.

7

:

Audio

When DC is appeared by audio amp failure at speaker line, DEM detects it 
and makes turn off the lamp.

8

:

D-OVP

When the output voltage from ASU DC-DC converter is abnormally high, 
TVM detects it and makes turn off the lamp.

9

:

Panel error

1. When the temperature sensor and bus decoder ICs (IC1700, IC1800, IC1900, 
    IC5066, IC2305) do not return ACK on IIC bus to DEM, DEM detects it and 

   makes turn off the lamp.

2. When the voltage ATSC5V converted by IC6402 on G board is low, DEM 
    detects it and makes turn off the lamp.

10

:  ATSC OVP

When the voltage converted by IC6403 on G board is abnormally high, TVM 
detects it and makes turn off the lamp.

LAMP

:

Lamp

When the lamp is broken, DEM detects it.

– 11 –

1

Fifteen screws
(+BVTP 4 x 16)

3

Three screws
(+PSWM 3 x 8)

5

Four screws
(+PSWM 3 x 8)

4

Eight screws
(+BVTP 3 x 12)

6

Terminal A and B
block assemblies

2

Rear cover assembly

1

Four screws
(+BVTP 4 x 16)

Note:
Be careful about these two flat cables
not to break.

2

Pull out the chassis assembly
gently and slightly

– 12 –

4

Four screws
(+PSWM 3 x 8)

1

Seven screws
(+BVTP 4 x 16)

2

Screw
(+PSWM 3 x 8)

3

Pull out the chassis assembly
gently and slightly

5

Q block assembly

1

Four screws
(+PSW 3 x 6)

qd

Three screws
(+PTP 4 x 16)

3

Three screws
(+PSWM 3 x 8)

5

Four screws
(+PSWM 3 x 8)

8

Eight screws
(+BVTP 4 x 16)

qf

Four screws
(+BVTP 4 x 16)

2

PD shield (TOP)

4

PD board

qg

Four fan fix plates

6

QU board

qs

DC fan

qa

Eight
fan dampers

qh

DC fan

qj

Fan bracket (chassis)

0

Exhaust fan bracket

9

Four cushion
(fan bracet)

7

POD
bracket