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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 Q7, if
pin 22 of U1 is at low level.
Yes
Check whether there
is voltage variance on
pin 22 of U1.
Yes
Check whether pin 1 to pin38
of
U1
and
peripheral
components
are
soldered, defected
Yes
Check Q4, Q5, Q6
whether
in
condition
Yes
Change U2 or the loader.
All manuals and user guides at all-guides.com
FFC
No
No
No
No
badly
No
good
4-5
Check the loaded circuit
Check the solder status on U1 and
peripheral components
check if bad solder exist on U1 and
peripheral components
Replace the bad spare parts
Correct connection
Trouble shooting chart
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