Read Sharp LC-22AD1E (serv.man6) Service Manual online
18
LC-22AD1E
No pictur
e
Becomes dark
Time passes,
becomes dark
Becomes white
Chec
k all the settings microprocessor's adjust process men
u.
Is source GND
nor
mal?
(SC4901,
SC4902)
Chec
k SC4901,
SC4902 and
their per
ipher
al
par
ts
.
Is CSCOM
wav
e
fo
rm
nor
mal?
(SC4901 1/2
Pin)
Chec
k IC4706,
IC4702, Q4701
and their
per
ipher
al par
ts
.
Is gate GND
nor
mal?
(SC4501)
Chec
k SC4501
and its
per
ipher
al par
ts
.
Is gate cloc
k
(GCK) nor
mal?
(SC4501 7Pin)
Chec
k FL4505,
R4540 and gate
arr
a
y
per
ipher
al
par
ts
. (IC4512
5Pin)
Is VEE-6V
being
outputted?
(SC4501
16~19Pin)
Chec
k lC4508
and its
per
ipher
al par
ts
.
Is V
GH+34V
being outputted?
(SC4501 3/4Pin)
Chec
k lC4507
and its
per
ipher
al par
ts
.
V
ertical line
output
Is VSH+3.3V
being
outputted?
(SC4901
8/9Pin)
Chec
k IC4703
and its
per
ipher
al par
ts
.
Ye
s
No
Ye
s
No
Ye
s
No
Ye
s
No
Is source cloc
k
nor
mal?
(SC4901 47Pin)
Chec
k IC4901
and gate ar
a
y
per
ipher
al par
ts
.
Ye
s
No
Is output of LBR
nor
mal?
(SC4901 10Pin)
Chec
k R4574,
IC4512 and
their per
ipher
al
par
ts
.
No
No
No
Is GSP
wav
e
fo
rm
nor
mal?
(SC4501
5/15Pin)
Chec
k FB4512,
FB4515 and
their per
ipher
al
par
ts
. (IC4512
7/3Pin)
Ye
s
No
No
TROUBLE SHOOTING TABLE (Continued)
Click on the first or last page to see other LC-22AD1E (serv.man6) service manuals if exist.