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5. SELF-DIAGNOSTIC FUNCTIONS
5.1 SELF-DIAGNOSTIC
FUNCTIONS
The self-diagnostic functions automatically
display an
error code on the TV screen and front panel fluorescent
display section when there is an error. The customer
* * (OD)
checks
the error code and conveys
it to the service
personnel to make repairs more efficient.
After an error occurs, even if the error code goes off, you
can display the error code again by holding down the
key for 10 seconds (except a loading error
display). At that time, partial error is displayed with the
mechanism switch information. However, if the power
cord is unplugged, the error code information is lost.
Self-diagnostic error code
Mechanism switch information
Fig. 1 TV screen display
This table explains the information for analyzing the cause when an error occurs with the CLD player.
Spindle
overcurrent
detection
error.
In the play state, overcurrent was detected in the spindle motor. Monitoring starts 5
seconds after the start of play or special playback mode, this error is detected if the
fe
F
overcurrent port is "L" for 4 seconds.
Clamper rubbing
*Motor NG
@At LD start-up, the rate of rotation calculated from the FG was less than 15 rpm for 5
Papen
seconds from the spindie run command.
At CD start-up, there was less than 1/8th rotation even after 5 seconds had passed
:
FG
since the end of acceleration.
: Legal ableth ealinges
abnormality |@ During play search, CD : subcodes are being read/LD : Phillips codes are being
-R atin Wt
FG
error
read and the spindle is locked, but a state in which the rate of rotation calculated
id hy
con
Sensor
from the FG was less than 15 rpm continued for 5 seconds or more. In the above
an
ble d
case, it is judged that an abnormality has occurred in the FG sensor and that
: Fa. - d
na
accurate rotation rate calculation has become impossible.
aot
Capos ten
¢FG sensor abnormality, FG
signal not coming to
@At LD start-up, the speed did not reach 1200 rpm within a certain time (12 seconds) | *Spindle motor NG
Partial short|
after the spindle run command.
*Commutator NG
error
@At CD start-up, a certain speed (313 rpm) was not reached within 6 seconds from
*Bearing too tight
the end of spindle acceleration.
* Power supply NG
arar
for about 1 second consecutively, the power supply is judged to be abnormal.
*Parts shorted
Rplate
When abnormality condition is detected for 80 ms consecutively between the slider
error
switch and the turn switch for 4 seconds after the power on.
;
*Tilt switch 1, 2, 3 abnormal, so
titloading state not read in
Loadin
@When loading operation goes over time (approx. 10 sec.).
correctly
sire 9
@wWhen assist at disc sense entry ends and is not tilt neutral.
*Tiltloading mechanism
@When assist at set up entry ends and is not tilt neutral.
mechanically locked
.
Drive IC NG
*Power supply NG
* Slider ceased being able to run
:
*The slider mechanism is
mechanically locked and can
:
Slider error
During slider movement, a time over-run occurred (track count search 20 seconds,
no longer move to its target.
mandatory movement 10 seconds)
*Slider position switch NG
* Flexible cable pulled out
*Drive IC NG
—;,
* Power supply abnormal
i
Power
:
— 5V power supply abnormality detected.
seg
pe one nally The power supply abnormality port is constantly monitored and if its signal stays high
SV not fed from SYPS assy
Hinge t
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