Philips DVP3180K Service Manual page 15

Only DVD disc or only disc except DVD can be played
Only DVD disc, or only disc
except DVD can be Played.
Go
Check the
connection between
24pin and the loader.
Yes
Check laser voltage (2V)
output on Collector of Q6
Yes
Check whether there
is voltage variance on
pin 20 of U3.
Yes
Check whether pin 1 to
pin54of U3 and peripheral
components
soldered, defected
No
Check Q6, whether
in good condition
Yes
Change U3 or the loader.
FFC
No
No
are badly
No
4-5
Check the loaded circuit
Check the solder status on U3 and
peripheral components
No Check if bad solder exist on U3 and
peripheral components
Yes
Replace the bad spare parts
Replace the bad spare parts
Trouble shooting chart