LC-52LE920UN/LC-60LE920UN

I

If it is not an error of power supply/LED

driver,

 

It is start-up in the lamp

error

disre_lard

mode,

I

Do you

start?

 

 

_' YES

I Does all LED of one line are not lighting?

_' NO

I It doesn't light in 1 piece.

i

I All LED boards including LED that doesn't light are exchanged.

YES

TP1 of LED board on the power supply side is confirmed.

Does the voltage hang?

_' NO

I

I

I

YES

I Is the LED board connected with CN2?

I

_' YES

TP1 of the next LED board connected with CN2 is confirmed. Does the voltage hang?

I harnessexchange

_' NO

Even if the short-circuit connector is exchanged, do not you light?

I

I

; YEs

 

; .o

; YEs

 

; .o

I The next LED board is seen.

I

I LED board exchange.

 

I

I THE END.

I

If it is not

an error

of power

supply/LED

driver,

 

 

It is start-up in the

lamp

error

disre_lard

mode,

 

[

 

Do you

start?

 

 

]

 

 

 

 

NO

 

 

 

 

[ Is connected connector

(LA1) with the first high LED board

of the power supply

 

board removed and do it start?

]

;YES

I All

LED

boards

and

the harness

connected

with LA1 are exchanged.

 

I

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

I Is connected

connector

(LA2) with the LED

board

second on the power supply board removed and do it start?

I

 

 

; YES

 

 

 

 

 

 

 

I All

LED

boards

and

the harness

connected

with LA2 are exchanged.

 

I

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

I Is connected

connector

(LA3) with the LED

board

third on the power supply board removed and do it start?

I

J' YES

All LED boards and the harness connected with LA3 are

exchanged.

NO

All LED boards are exchanged.

]

6-13

Page 59
Image 59
Sharp 52LE920UN If it is not an error of power supply/LED, It is start-up in the lamp Error Disrelard Mode Do you, Led