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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.
Check
connection between
24pin and the loader.
Check laser voltage (2.3V)
output on Collector of Q2, if
pin181 of U1is at low level.
Check whether there
is voltage variance on
pin 182 of U1.
Check whether pins of U1
and
components
soldered, defected
Change U1 or the loader.
Go
the
FFC
Yes
Yes
Yes
peripheral
are
badly
Yes
Check Q2 whether
in good condition
Yes
1-5
No
Check the loaded circuit
Check the solder status on U1 and
No
peripheral components
No
check if bad solder exist on U1 and
peripheral components
No
Replace the bad spare parts
No
Correct connection
Trouble shooting chart
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