CMT-SE7, HCD-SE7 - 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 a message appears 
in the display, be sure to open the lid of the unit 
and confirm the displayed message.
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 

(page 38).

The sound you are trying to record is encoded in a 
format that this unit cannot record.

cRecord sound output in a format that this unit can 

record.

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 (page 55).

The sound source is a copy of a commercially 
available music software.

cThe Serial Copy Management System prevents 

making a digital copy (page 95).

The sound you are trying to digitally record is 
encoded in a format that this unit is not compatible 
with.

cRecord sounds encoded in a format that this unit 

can digitally record (see “Before you start 
recording” (page 37) and “Recording between this 
system and optional components” (page 81)).

If the message disappears shortly after it is 
displayed, the interruption was caused by digital 
broadcasting signals, and the content of recording is 
not affected.

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 DIGITAL OPTICAL 
IN jack.

cConnect the digital optical cable, or turn on the 

power of the connected component.

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.