Sharp LC-42SD1E (serv.man4) Service Manual ▷ View online
LC-42SD1E/RU
4 – 25
LCD failure
Does a single or several vertical
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Replace the LCD panel.
Does a single or several horizontal
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Do luminescent or black dots appear
on the screen?
on the screen?
Is the on-screen image rippling or
distorted?
distorted?
LCD failure
The backlight functions.
Does not the image come out in the
LCD screen (screen black)?
Does not the image come out in the
LCD screen (screen black)?
Replace the LCD control unit
Does the entire LCD screen look
whitish all over?
whitish all over?
Does the QS drive function?
Are there data bit drop-outs?
(No solution even when turning on
and off the QS drive)
(No solution even when turning on
and off the QS drive)
Is the gamma correction as
specified?
specified?
LC-42SD1E/RU
4 – 25
LCD failure
Does a single or several vertical
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Replace the LCD panel.
Does a single or several horizontal
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Do luminescent or black dots appear
on the screen?
on the screen?
Is the on-screen image rippling or
distorted?
distorted?
LCD failure
The backlight functions.
Does not the image come out in the
LCD screen (screen black)?
Does not the image come out in the
LCD screen (screen black)?
Replace the LCD control unit
Does the entire LCD screen look
whitish all over?
whitish all over?
Does the QS drive function?
Are there data bit drop-outs?
(No solution even when turning on
and off the QS drive)
(No solution even when turning on
and off the QS drive)
Is the gamma correction as
specified?
specified?
LC-42SD1E/RU
4 – 25
LCD failure
Does a single or several vertical
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Replace the LCD panel.
Does a single or several horizontal
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Do luminescent or black dots appear
on the screen?
on the screen?
Is the on-screen image rippling or
distorted?
distorted?
LCD failure
The backlight functions.
Does not the image come out in the
LCD screen (screen black)?
Does not the image come out in the
LCD screen (screen black)?
Replace the LCD control unit
Does the entire LCD screen look
whitish all over?
whitish all over?
Does the QS drive function?
Are there data bit drop-outs?
(No solution even when turning on
and off the QS drive)
(No solution even when turning on
and off the QS drive)
Is the gamma correction as
specified?
specified?
LC-42SD1E/RU
4 – 25
LCD failure
Does a single or several vertical
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Replace the LCD panel.
Does a single or several horizontal
stripes appear on the LCD screen?
stripes appear on the LCD screen?
Do luminescent or black dots appear
on the screen?
on the screen?
Is the on-screen image rippling or
distorted?
distorted?
LCD failure
The backlight functions.
Does not the image come out in the
LCD screen (screen black)?
Does not the image come out in the
LCD screen (screen black)?
Replace the LCD control unit
Does the entire LCD screen look
whitish all over?
whitish all over?
Does the QS drive function?
Are there data bit drop-outs?
(No solution even when turning on
and off the QS drive)
(No solution even when turning on
and off the QS drive)
Is the gamma correction as
specified?
specified?