CMT-SE9, MDS-SE9 - Sony Audio Service Manual (repair manual). Page 4

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This system has a Self-diagnosis display 
function to let you know if there is a system 
malfunction. The display shows a code made up 
of three or five letters and a message alternately 
to show you the problem. To solve the problem 
refer to the following list. If any problem 
persists, consult your nearest Sony dealer. 

The MD is protected against erasure.

cRemove the MD and slide the tab to close the slot. 

You tried to record a disc with a format that the 
system does not support, such as a CD-ROM.

cRemove the disc and turn off the system once, 

then turn it on again.

You tried to record sound that cannot be digitally 
recorded with this system from a connected optional 
component.

cSwitch the digital audio output of the optional 

component to PCM mode.

Recording could not be performed properly.

cMove the system to a stable place, and start 

recording over from the beginning.

The MD is dirty or scratched, or the MD does not 
meet the standards.

cReplace the MD and start recording over from the 

beginning.

The MD deck cannot read the disc information 
properly.

cRemove the MD once, then insert it again.

The MD deck cannot read the disc information 
properly.

cReplace the MD.

cErase all the recorded contents of the MD using 

the All Erase Function.

The sound source is a copy of a commercially 
available music software or CD-R.

cThe Serial Copy Management System prevents 

making a digital copy.  In addition, you cannot 
copy from a CD-R. 

The digital optical cable is disconnected, or the 
power of the connected component is turned off 
while recording the digital audio from an optional 
component connected to the VIDEO/SAT 
DIGITAL IN OPTICAL jack or a CD.

cConnect the digital optical cable, or turn on the 

power of the connected component.

The DVD player and the MD deck are not 
connected correctly with the digital optical cable, or 
you tried to start the recording immediately afte r 
setting the recording pause mode when making a 
digital recording from a optional component 
connected to the VIDEO/SAT DIGITAL IN 
OPTICAL jack or a CD.

cConnect the digital optical cable correctly, or wait 

for several seconds in the recording pause mode 
before starting the recording.

The component has internal problem.

cConsult your nearest Sony dealer.

There is a problem with the laser pickup.

cThe laser pickup may be damaged. Consult your 

nearest Sony dealer.

There is a problem with loading.

cConsult your nearest Sony dealer.