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Yamaha MDX-E300 Service Manual page 34

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MDX-E300
Error on display
Can' t Edit
TMP Over!!
SDRD ERR
RecP-SE ERR
SRWR ERR
TOC ERR S
TOC ERR R
U TOC W ERR
FOCUS ERR
BLANK DISC
TOC W ERROR
EEPROM ERROR
Mechanism Error
Error on display
Er_MD2_*
Er_MD3_*
* = E
Eject completed position
* = M Horizontal midway position
* = L
Load completed position
* = D
Head down position
34
Description
• Editing conditions were not satisfied with respect to
each editing function.
• The temperature in the set (MD unit) went up exces-
sively high due to occurrence of some abnormality.
• The data was not correct or it was not possible to read it
correctly.
• Recording the music data failed as an abnormality
occurred while recording it.
• The TOC data was not correct.
• It was not possible to read the TOC data.
• It was not possible to rewrite UTOC correctly and an
abnormality occurred while rewriting it.
• The disc was loaded but it was not possible to achieve
FOCUS.
• The total number of TNO and NAME characters was "0"
as a result of reading UTOC.
• UTOC can be read but cannot be rewritten.
• The EEPROM data is not correct
Description
The head fails to move up.
The head fails to move down.
HINF (IC1401 No.93 pin)
< 1.0 V
> 3.01 V
1.31 — 2.36 V
1.01 — 1.31 V
Countermeasure
• Wrong operation procedure was used. Try
again by using the correct procedure.
• Check according to troubleshooting.
• Check the temperature of the area where the
unit is used.
• Use another disc as there is an abnormality in
TOC or UTOC data or the disc has a scratch or
other faulty condition.
• The TOC data recorded in the disc is not in
compliance with the MD standard.
• Use another disc as the disc has a scratch or
other faulty condition.
• Use another disc as the disc has a scratch or
other faulty condition.
• Check that the disc is free from any scratch,
dust, finger print, black spot, etc. and that
decentering, face deflection, etc. are not
excessive.
• Check if the disc is recordable by actually
recording.
• Check if the recording head contacts properly
and if wiring from the circuit board to the
recording head is free from breakage.
• Try again after resetting and if still NG, replace
EEPROM.

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