Philips DVP6600 Service Manual page 18

Only DVD disc or only disc except DVD can be played
Only DVD disc, or only disc
except DVD can be Played.
Go
Check
connection between
24pin and the loader.
Yes
Check laser voltage (2V) output
on Collector of Q5 if pin 22 of U4
is at low level.
Yes
Check whether there
is voltage variance on
pin 22 of U4.
Yes
Check whether pin 1 to pin38
of U2 and
components
soldered, defected
Yes
Check Q5, Q6, Q8
whether
condition
Yes
Change U2 or the loader.
the FFC
peripheral
are badly
No
in good
4-5
No
Check the loaded circuit
Check the solder status on U2 and
No
peripheral components
No
check if bad solder exist on U2 and
peripheral components
No
Replace the bad spare parts
Correct connection
Trouble shooting chart