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Sony CDU31A Series Service Manual page 17

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3-4 DRIVE FUNCTION CHECK
3-4-1
Pre-Setting
d.
After system loading. insert SRV _SLCD Test Disk
into the drive A.
a.
Disassemble the following parts before testing.
e.
Change directory in the A drive.
Bottom Plate Ass'y (Refer to 4-2)
b.
Connect the test drive to the ATP System. (Refer to
Fig. 2-2.)
f.
Type
~[ffi[2]0~[QIQ[Q]
and IEnterl key to start the
function check. (Main menu will be displayed.)
c.
Tum on the power of the Computer.
Note: Make sure PC-DOS has been installed in the hard
disk of the computer.
l
Esc
l
SRV _SLCD Alpha.X.XX
*
[I. K. September-01-1992)
Alt-Z
RESET DRIVE
L
Abort
fesrF~o~
F3
Set Auto
Spin Up
F5
DIAG
Bus Check
F9
Play Audio
F2
AUDIO TEST
F4
Reset Auto
Eject
F6
DIAG
Memory Check
INQUIRY
r
F10
l
r-;
AA-X
;i
~_10:
36:'
Auto Spin Up : OFF /
Auto Eject : ON
L-+ L
R-+ R
L [ O.OdB]
R [ 0.0dB]
Close but No Disc / TOC : NO LED : OFF
[ATN : 80) Loading Mechanism is Loaded
!
Item/Procedure
I.
Poweron
a.
Tum on the power.
2.
Tray open
a.
Push the eject button when the
"Reset Auto Eject." message is
displayed.
·
3.
Bus check
a.
Hit
~
(DIAG Bus Check) key.
(Refer to Display 3-4-2)
b.
Hit
~
key to return to Main
Menu.
4.
Memo~heck
a.
Hit
B!I
(DIAG Memory Check)
key.
dRe~er
to Display 3-4-3)
b.
Hit
nte key to return to Main
Menu.
Display 3-4-1
Specification (Normal Status)
Check point
I.
The spindle motor docs not rotate.
QI04, QIOS.
(VS test land is OV.)
2.
Green LED on the front panel lights
Q201, IC201-14.
up. (XBUSY test land is High
level.)
I.
Tray is opened automatically.
IC201-8, Q203, voltage of +12V.
(OPEN test land is High level and
also SLNID is 8 to IOV.)
I.
"Bus Check OK." message appears
CN202, CN203, IC212, IC213,
on the screen.
IC202, IC215, IC209, IC210.
I.
"Program ROM OK.", "Work RAM
IC212, IC213
OK." and "Data Buffer RAM OK."
message appears on the screen.
3-6

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