Philips HTD3510/98, Service Manual

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5-6 Trouble shooting Chart
Can
’
t read disc or can
’
t open the disk door
I
Yes
Check the connection 4pin cable from the
main board
Can
’
t read disc or can
’
t open
the disk door
Check 24pin cable from
main board connection to
the loader is normal
Replace the loader
NO
GO
Check whether the
DVD loader running is
normal
Fix the connection the 24pin cable
NO
Yes
Check if U20 (pin110,111)
voltage is normal
Replace main board
NO
Check if XP100 (pin2,6)
voltage is normal
Relace Q100,Q101
Yes
Yes
NO