Sony SCD-C555ES Service Manual page 68

SCD-C555ES
6-5. CDM59 and the Door Check
Measurement of table rotation hours, tray open/close hours and
panel door open close hours can be executed together with CDM59.
Procedure
1. Enter the TEST mode. Turn the
[
59 Table Init. Press l
[OPEN/CLOSE]
key.)
2. When the message INITIAL OK appears, press the
CLOSE]
key to eject the tray. Place a disc in the DISC1 of the
table. (Be sure to place a disc in DISC1. If a disc is placed in
any locations other than DISC1, the correct measurement can-
not be executed. Therefore, be sure to place a disc in DISC by
[DISC SKIP]
using the key.)
3. Select 58 CDM Check by turning
[ AMS ]
l L
once.
4. Measurement starts automatically.
5. When the measurement is completed, the message DOOR OP
ss.s (s is a decimal number) appears on the FL display.
6. Result of measurement can be check by turning
If any measurement item does not meet specification, a mes-
sage "ng" is displayed next to the measurement value.
7. When you want to repeat the test, press
[OPEN/CLOSE]
8. Press the
move the disc.
* 1.The measurement can be performed without placing a disc.
However, the BU chucking time and unchucking time will
be slightly different from the actual values.
* 2.When the machine enters this mode once, it cannot return
to the normal test mode. If any other tests are desired, turn
off the main power once and then back on again to enter
the test mode.
Measurement items and specifications
Measurement item
RL Time required for the table to make one complete rotation.
(R: Clockwise rotation. L: Counter-clockwise rotation)
DOOR OP Time required to open the panel door
CLOSE Time required to close the tray.
BU UP Time required for the BU block to perform chucking from the DOWN position
EXOPEN The XCHANGE OPEN time
EXCLOSE The EXCHANGE CLOSE time
BU DOWN Time required for the BU block to perform unchucking and going to the DOWN
position
OPEN Time required to open the tray
DOOR CL Time required to close the panel door.
If the panel door cannot be opened, the time-out error is triggered
and the measurement is also stopped at this stage. Note that the
tray can push the door forcibly as the software judges the door as
it is in the OPEN state, if the door open/close detector switches
(S1022 and S1023 on the DOOR SW board) have abnormality.
68
[ AMS ]
l L dial and select
AMS ]
L once (that enables the
[OPEN/
[ AMS ]
l L
and press
[ AMS
l L
[ AMS ]
l L again.
key to terminate the test and re-
]
.
Description Specifications (unit: second)
6.0 to 7.5
<10.0
<2.3
<1.3
<2.5
<2.8
<0.9
<2.4
<10.0