Sony MDX-C7970 Operating Instructions Manual page 27

Error displays (when optional CD/MD unit is connected)
The following indications will flash for about five seconds, and an alarm sound will be heard.
Display
NO Mag
NO Disc
NG Discs
1
*
Error
1
Blank *
Push Reset
Not Ready
1 When an error occurs during playback of an MD or CD, the disc number of the MD or CD does not
*
appear in the display.
2
The disc number causing the error appears in the display.
*
If the above-mentioned solutions do not help improve the situation, consult your nearest Sony
dealer.
Cause
The disc magazine is not inserted in
the CD/MD unit.
No disc is inserted in the CD/MD
unit.
A CD/MD cannot play because of
some problem.
A CD is dirty or inserted upside
down.* 2
An MD does not play because of
some problem.* 2
No tracks have been recorded on an
MD.* 2
The CD/MD unit cannot be operated
because of some problem.
The lid of the MD unit is open or MDs
are not inserted properly.
Solution
Insert the disc magazine with discs
into the CD/MD unit.
Insert discs in the CD/MD unit.
Insert another CD/MD.
Clean or insert the CD correctly.
Insert another MD.
Play an MD with tracks recorded
on it.
Press the reset button of the this unit.
Close the lid or inserted the MDs
properly.
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