Philips DVP3126 Service Manual page 15

Only DVD disc or only disc except DVD can be played
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Only DVD disc, or only disc
except DVD can be Played.
Go
Check the FFC connection
between 24pin
loader.
Yes
Check laser voltage (2.3V)
output on Collector of Q2, if
pin181 of U1is at low level.
Yes
Check whether there is voltage
variance on pin 182 of U1.
Yes
Check whether pins of U1
and peripheral components
are badly soldered, defected
Yes
Check Q2 whether
in good condition
Yes
Change U1 or the loader.
manuals search engine
4-5
No
and the
No
No
No
No
Correct connection
Trouble shooting chart
Check the loaded circuit
Check the solder status on U1 and
peripheral components
check if bad solder exist on U1
and peripheral components
Replace the bad spare parts