Philips DVP5960 Service Manual page 15

Disc cannot be read .
Disc cannot be read.
Check
connection between 24P
and the loader.
Check
laser voltage (2V for VCD
and 2.2V for DVD) on
Collector of Q8 &Q9
Check
peripheral components are
eroded or badly soldered.
Check if there is RFO signal
on pin8 of CN2. (The normal
RFO signal
reticulated wave)
Check the connection
between U4
Replace U4 or loader.
Yes
the FFC
Yes
whether there is
Yes
U4, U5, and
Yes
is a clear
Yes
Yes
4-4
No
Check the loaded circuit
1.Check voltage on pin 44 of U4
varies between 0 and 3.3V:
No
3.3V for VCD
0V for DVD
2.Check
components are eroded or defect
No
Re-solder or replace the defective parts
No
Check U4 and peripheral components
No
Correct connection
Trouble shooting chart
whether peripheral