Read Sharp LC-22AD1E (serv.man6) Service Manual online
19
LC-22AD1E
No pictur
e
Colour is
unusual
Pictur
e image
is gloomy
No pictur
e
image
inversion
Chec
k all the settings microprocessor's adjust process men
u.
Is output of R00-
R07 , RE0-RE7
nor
mal?
(SC4902)
Chec
k
FL4506~4509,
R4554, R4661,
R4564, R4662,
R4671-R4674
and their
per
ipher
al par
ts
.
Is output of
G00-G07, GE0-
GE7 nor
mal?
(SC4901/2)
Chec
k R4569,
R4663, R4577,
R4664,
FL4510~FL4513
and their
per
ipher
al par
ts
.
Is VLS
+13V
being
outputted?
Chec
k IC4509,
IC4504 and
their per
ipher
al
par
ts
.
Is in/output of
SPIO and SPOI
nor
mal?
(SC4901
44/45Pin)
Chec
k R4570,
R4571, IC4512
and their
per
ipher
al par
ts
.
Gradation
defect
Is output
VL0,
VL64, VL96,
VL128, VL160,
VL192, VL224,
VL256, VH0,
VH64, VH96,
VH128, VH160,
VH192, VH224
and VH256
nor
mal? (SC4902
1~16Pin)
Chec
k IC4701
and its
per
ipher
al par
ts
.
Ye
s
No
No
No
No
No
Is output of
B00-B07, BE0-
BE7 nor
mal?
(SC4901)
Chec
k R4580,
R4666, R4579,
R4665,
FL4514~FL4517
and their
per
ipher
al par
ts
.
Ye
s
No
TROUBLE SHOOTING TABLE (Continued)
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