Explanation Of Error Display - Sharp MD-M3 Service Manual

Error display
Can't REC • Defect occurred successively 10 times during REC-PLAY.
• As a result of occurrence of defect during REC-PLAY the
recordable cluster became zero.
• Address is unreadable. REC state cannot be set for 20
seconds although retry is repeated.
Can't COPY • The following judgement is made according to the channel
status of digital signal which was input from D-IN during REC-
PAUSE or REC-PLAY.
(1) Other than audio signal
(2) Other than signals of home-use appliances
(3) Copy NG due to inversion of copy bit in CD.
TOC FULL • There were no areas to record music or character
information. (music name, disc name, etc.) during REC-PLAY.
UTOC R ERR • FTNO > LTNO
• FTNO ≠ 0 or 1
• UTOC recorded on disc could not be read.
UTOC A ERR • Start address > End address
UTOC L0~4 ERR • Any data of UTOC 0 to 4 looped.
NOT AUDIO • Nonaudio data was recorded in the track mode of currently
selected TNO.
? DISC • Data "MINI" of system ID which has been written in TOC with
ASCII code is not correct.
• The disc type written in TOC does not correspond to pre/
mastered MD, recording MD and hybrid MD.
DISC FULL • When an attempt to set REC-PAUSE was made, there were no
recordable areas.
PLAY MD • An attempt to set REC-PAUSE or to start editing was made on
the playback-only disc.
PROTECTED • An attempt to record or edit was made on the record/playback
disc with its careless erase preventing tab being in erase
preventing state.
• An attempt was made to edit the track which was write-
protected by information written in UTOC.
• It is indicated when a tape is faulty operation prevention
condition. (tabs breaks.)
Can't EDIT • Specific editing conditions were not satisfied.
• Cover the write-protect hole with a piece of cellophane tape.
TEMP OVER • Owing to occurrence of some trouble internal temperature of
set (MD unit) rose excessively.
MD RD ERR • Read data was not correct or data could not be read correctly.
MD PA ERR • Trouble occurred during recording if music data, resulting in
MD WR ERR record failure.
TOC S ERR • TOC was read but data was not correct.
TOC R ERR • TOC could not be read.
TOC T ERR
UTOC W ERR • Trouble occurred during rewriting of UTOC, resulting in UTOC
rewriting failure.
FOCUS ERR • After the disc was loaded, focusing failure occurred.
BLANK MD • UTOC was read but total TNO and the number of characters of
NAME was 0?
TOC W ERR • Although UTOC can be read but UTOC cannot be rewritten.
MD ERR • Data of EEPROOM is not correct.

EXPLANATION OF ERROR DISPLAY

Errors
– 25 –
MD-M3/M1
Corrective action
• Check that the disc is free from flaw, dust
and fingerprint.
Check whether there is any black spot.
Check for disc disalignment and run-out.
• Check whether CD is copy-inhibited one.
(An example: CD-R)
• Replace the disc with a recording/
playback disc in which an area to register
UTOC remains.
• UTOC data is not normal. Replace the
disc with other disc.
• UTOC data is not normal. Replace the
disc with other disc.
• UTOC data is not normal. Replace the
disc with other disc.
• Select other TNO or replace the disc with
other disc.
• The loaded disc is not applicable.
Replace the disc, and check.
• Replace the disc with other recording disc
in which recording area remains.
• The loaded disc is a playback-only disc.
Replace the disc with a recording disc.
• Return the careless erase preventing tab
to its initial position, and redo.
• The track on which an attempt to edit was
made is a write-protected track. Redo on
another track.
• Cover the accidental erase prevention
holes with adhesive tape.
• The applied operation procedure is not
proper. Redo, applying the correct
procedure.
• Check by troubleshooting.
• Check whether the ambient temperature
is too high.
• Data of TOC or UTOC is not normal or
disc has flaw. Replace the disc with other
disc.
• The TOC information recorded on disc
does not conform to the MD standard.
Replace the disc with other disc.
• The disc has flaw. Replace the disc with
other disc.
• The disc has flaw. Replace the disc with
other disc.
• Check that the disc is free from flaw,
dust, fingerprint and black spot. Check for
disc disalignment and run-out.
• Perform recording to check that the disc
is recordable disc.
• Check that the record head contact is
normal. Check that there is no broken
wire between PWB and the recording head.
• Perform adjustment
• Once reset, and redo. If error occurs
persistently, replace EEPROM.