Philips DVP3156 - Page 15

4-5
Only DVD disc or only disc except DVD can be played
No
No
Yes
Only DVD disc, or only disc
exce
p
t DVD can be Pla
y
ed.
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
p
in 23 of U2.
check if bad solder exist on U2 and
peripheral components
Replace the bad spare parts
Check Q2, Q3, Q4
whether in good
condition
Yes
Yes
Yes
Go
Correct connection
Change U2 or the loader.
No
No
Yes
Check laser voltage (2V) output
on Collector of Q6, if pin 23 of
U2 is at low level.
No
Trouble shooting chart
Remark: Trouble shooting chart for
DVP3160K/XX
Check whether pin 1 to pin38
of U2 and peripheral
components are badly
soldered, defected