Philips DVP3000K Service Manual page 18

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A bnor m al col or of vi deo pi ct ur e
Abnor m al col or of
vi deo pi ct ur e
Yes
C heck
27M H z out put si gnal i s
Yes
C heck w het her t he 3. 3V
and 2. 5V pow er suppl y
vol t ages on t he decoder
boar d ar e nor m al .
C heck w het her t he
vi deo f i l t er net w or k
ci r cui t i s nor m al .
Check if the Y1 to Y6 signals on Pin164
to Pin 173 of U3 are normal
w het her t he
Yes
Yes
4- 8
N o
C heck Y1, R 56, R 56, C 39 and C 40
N o
C heck ot herof pow er suppl y el ect r i c
ci r cui t
N o
C or r ect t he connect i on
N o
change U 3 or U 14、U 15
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