Error History And Display; Error History Display - Pioneer PD-F906 Service Manual

PD-F906
7.2.3 ERROR HISTORY DISPLAY
(1) Disc No. @ : Detail of error code at portion
<Note> The user display appears only when the normal operation cannot be returned even if the fail safe operation is executed after each
error occurs.
° Mechanism position just before the LOADING mechanism
shifts to the disc selection operation when the DCNT pin is
low. (The DCNT pin is usually high when the LOADING
mechanism is in the stop state. The mechanism position is
thus judged to have been shifted for some reason. The shifted
mechanism position may cause a failure.)
« Discrepancy has occurred between the detected disc position
and the current disc position during movement of the loading
mechanism. (The system may incorrectly counted the
waveforms of the DCNT and DPOS terminals. If counting is
incorrect, the position of the disc No. displayed does not match
the disc position counted.)
° Mechanism position during disc loading when the DCNT pin
is low. (The DCNT pin Is usually high when the LOADING
mechanism is in the stop state. The mechanism position is
thus judged to have been shifted for some reason. The shifted
mechanism position may cause a failure.)
No disc existed.
A disc was tumed upside down.
A disc was dirty.
Adisc was loaded incompletely.
* The focus got out of place during playback due to the crack
and stain on the disc.
* The servo mechanism couldn't move to the desired tune
faa ial position within a fixed time during selection of a tune from
playback or during playback.
* Adisc couldn't be loaded within a fixed time.
(A disc couldn't be carried from the rack block.)
¢ Adisc couldn't be unloaded within a fixed time. (Adisc couldn't
be retumed to the rack block.)
¢The LOADING mechanism couldn't move to the desired disc
position within a fixed time during selection of a disc from
playback or during playback start from stop.
* The LOADING mechanism couldn't be forcibly retumed to
the home position (left position when viewed from the front)
within a fixed time after it is initialized or becomes NG. Hood section
A disc couldn't be normally rotated for playback after loading Description
because; — ;
,
The hood did not within the specified time_ The switch of
A disc was tumed upside down. the hood was akinaering
AGRE RS Oat
The hood did not close within the specified time. The switch of
the hood was malfunctioning.
The hood was attempted to be opened with force when it was
completely closed. The switch of the hood was matfunctioning.
(2) Track No. © : Error sequence in portion
A disc was loaded incompletely.
* Adisc couldn't be normally rotated during playback due to the
recently.
Crack and stain on the disc.
(3) Minute : Second No. © : Detail of error generation mode in portion
Indicates the internal mode in which the displayed error is generated. The upper digit in "minute : second" has the meaning.
Digit of minute Digit of second
Display
Spindle stop operation * During closing of the hood
se [ToC |
[6 | Trak seach open |
[Paws
During opening of the hood
and when the hood is com-
pletely open
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