Philips DVP3111, Service Manual

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Only DVD disc or only disc except DVD can be played
No
No
Yes
Only DVD disc, or only disc
except DVD can be Played.
Check the FFC
connection between
24pin and the loader.
Check the loaded circuit
Check the solder status on U2 and
peripheral components
Check whether there
is voltage variance on
pin 18 of U2.
check if bad solder exist on U2 and
peripheral components
Replace the bad spare parts
Check whether pin 1 - 26 and
pin 125-128 of U2 and peripheral
components are badly
soldered, defected
Check Q5, Q6, Q7
whether in good
condition
Yes
Yes
Yes
Go
Correct connection
Change U2 or the loader.
No
No
Yes
Check laser voltage (1.9V)
output on Collector of Q11, if
pin 17 of U2 is at low level.
No
Trouble shooting chart
5-4