77
Is the
input voltage 0V at IC201
pin203 when push the
EJECT SW?
Tray operating is abnormal.
Drive doesn’t work after tray
close
•
Check the pull-up line(3.2V).
•
Replace SW1.
•
Check the pull-up line(3.3V).
•
Replace SW1.
When CN303 is open, Is
there Tray drive signal
output?
•
Check the connction of IC201 pin 203.
•
Replace the EJECT SW.
•
Check the connctor (CN303).
•
Replace the IC301.
Is the input
voltage 0V at IC201
pin204(/OPENSW) when
push the SW1?
Is the input
voltage 0V at IC201
pin63(/LOADSW) when
push the SW1?
YES
NO
NO
•
Check the connction of IC201 pin 66.
•
Replace theIC201.
•
Check the communication line
between IC201.
NO
YES
YES
YES
NO
Is there Tray
drive voltage output?
(IC301 pin 1,2)
Is there Tray
control signal input?
(IC301 pin 4)
YES
NO
YES
Tray open doesn’t work.
Содержание GSA-4166B
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