Philips DVP5100 Service Manual page 15

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D i sc cannot be r ead .
D i sc cannot be r ead.
Yes
C heck t he FFC connect i on
bet w een 24P and t he l oader .
Yes
C heck w het her t her e i s l aser
vol t age ( 2V f or VC D and 2. 2V f or
D VD ) on C ol l ect or of Q 4 &Q 5
Yes
C heck
per i pher al com ponent s ar e
er oded or badl y sol der ed.
Yes
C heck i f t her e i s R FO si gnal on
pi n17 of C N 2. ( The nor m al R FO
si gnal i s a cl ear r et i cul at ed w ave)
Yes
C heck t he connect i on
bet ween U 2 and U 3
R epl ace U 2 or l oader .
U 2, U 3, and
Yes
4- 4
N o
C heck t he l oaded ci r cui t
1. C heck vol t age on pi n 114 of U 2 var i es
bet w een 0 and 3. 3V:
N o
3. 3V f or VC D
0V f or D VD
2. C heck w het her per i pher al com ponent s
ar e er oded or def ect
N o
R e- sol der or r epl ace t he def ect i ve par t s
N o
C heck U 2 and per i pher al com ponent s
N o
C or r ect connect i on
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