Philips DVP5100 Service Manual page 18

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D i st or t ed audi o and l oud noi se
D i st or t ed audi o and
Yes
C heck t he pow er suppl y vol t ages
+12V and - 12V t o t he oper at i on
am pl i f yi ng
nor m al .
Yes
C heck
m ut i ng t r ansi st or L27
and L28 ar e nor m al
Yes
C heck
m ut i ng
Q 19- Q 22 ar e nor m al
C hecki ng t he U 13 l eads
t he f eet has no t o br eak t o
open
i f t he cl ock si gnal AC LK,
ABC K
out put by U 2 ar e nor m al
Yes
C heck w het her t he U 12 or
U 13 pow er suppl y nor m al
R epl ace U 13 or U 12
l oud noi se
Q 33 andQ 35 ar e
w het her t he
w het her t he
t r ansi st or
Yes
Yes
and ALR C K
Yes
4- 7
N o
C heck Q 33and Q 35
N o
R epl ace L27 and L28
N o
R epl ace Q 19- Q 22
N o
Correct connection
N o
R epl ace U 2
SA CLK w avef or m
N o
C heck U 12, U 13
Tr oubl e shoot i ng char t
SBCLK w avef or m SSLRCK w avef or m
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