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7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 POWER ON SEQUENCE
Perform the mechanism initializa-
tion every time it power on.
(When the AC outlet is pulled out
while raising up the Head Base or
the gear comes off, perform the
initialization every time because the
normal movement can't be done.)
• STANDBY/ON key is pressed.
• Receive the system power on
information with the sytem bus.
Go to Power ON
No
Is Tray open ?
Yes
Tray close
200mS WAIT
Yes
Is MODE SW
OFF ?
No
SOL 50mS ON
(port Pin 2 )
MOTOR ON
(port Pin 3 )
150mS WAIT
Yes
:ERROR
Is it fifth
times ?
No
No
Is MODE SW
OFF ?
Yes
300mS WAIT
MOTOR OFF
(port Pin 3 )
END
Note : Pin No. shows the Pin No. of µ-COM PDC059A.
Check the mecha. switch (port Pin 40 and Pin 41 )
CLOSE Pin 40 = H , Pin 41 = L
Pin 40 = L , Pin 41 = H
OPEN
Close it if the tray is opened (port Pin 1 and Pin 47 )
CLOSE Pin 1 = L , Pin 47 = H
Pin 1 = H , Pin 47 = L
OPEN
Check that the mecha. is stop
condition (port Pin 17 = L)
MOTOR ON
500mS WAIT
No
Is MODE SW
OFF ?
Yes
ERROR
Is it second
times ?
Yes
:Give up
Initialize end
Deck motor off
(port Pin 3 = L)
CT-IS21
No
31
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