MDS-JE640 - Sony Audio Service Manual (repair manual). Page 2

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The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which
show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box
in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for using the Self-
Diagnosis Function (Error History Display Mode)”.

Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required
procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the  MENU/NO  button to exit
the mode.

Power requirements 

• Audio connecting cords (2)
• Optical cable (1)
• Remote commander (remote) (1)
• R6 (size-AA) batteries (2)

US and foreign patents licensed from Dolby Laboratories.

Design and specifications are subject to change without 
notice.

DIGITAL OUT

Connector type:  square optical
Rated output:  –18 dBm
Load impedance:  660 nm (optical 
wave length)

DIGITAL OPTICAL OUT  
(AEP, UK, CIS models)

Connector type:  square optical
Rated output:  –18 dBm
Load impedance:  660 nm (optical 
wave length)

Where pu rchas ed

Power requ ir ements

Canadian

120 V AC, 60 Hz

AEP, UK, CIS

220 – 230 V AC, 50/60 Hz

Singapore, Malaysia

110 – 120 or 220 – 240 V AC 
selectable, 50/60 Hz

Power consumption 

15 W

Dimensions (approx.) 

430 

× 95 × 285 mm (17 × 3

3

/

4

 

× 

11

1

/

4

 in.) (w/h/d) incl. projecting 

parts and controls

Mass (approx.)

3.1 kg (6 lbs 14 oz)

The deck’s self-diagnosis function automatically checks 
the condition of the MD deck when an error occurs, then 
issues a three- or five-digit code and an error message on 
the display. If the code and message alternate, find them in 
the following table and perform the indicated 
countermeasure. Should the problem persist, consult your 
nearest Sony dealer.

C11/Protected

The inserted MD is record-protected.
, Take out the MD and close the record-

protect slot (page 14).

C12/Cannot Copy

You tried to record a CD with a format 
that the external device connected to the 
deck does not support, such as CD-ROM 
or video CD.
, Remove the disc and insert a music 

CD.

C13/REC Error

The recording was not made properly.
, Set the deck in a stable surface, and 

repeat the recording procedure.

The inserted MD is dirty (with smudges, 
fingerprints, etc.), scratched, or 
substandard in quality.
, Replace the disc and repeat the 

recording procedure.

C13/Read Error

The deck could not read the TOC on the 
MD properly.
, Take out the MD and insert it again.

C14/Toc Error

The deck could not read the TOC on the 
MD properly.
, Insert another disc.
, If possible, erase all the tracks on the 

MD (page 32).

C41/Cannot Copy

The sound source is a copy of 
commercially available music software, or 
you tried to record a CD-R (Recordable 
CD).
, The Serial Copy Management System 

prevents making a digital copy 
(page 52). You cannot record a CD-R.

C71/Din Unlock

The sporadic appearance of this message 
is caused by the digital signal being 
recorded. This will not affect the 
recording.

While recording from a digital component 
connected through the DIGITAL IN 
connector, the digital connecting cable 
was unplugged or the digital component 
turned off.
, Connect the cable or turn the digital 

component back on.

E0001/
MEMORY NG

There is an error in the internal data that 
the deck needs in order to operate.
, Consult your nearest Sony dealer.

E0101/
LASER NG

There is a problem with the optical 
pickup.
, The optical pick-up may have failed. 

Consult your nearest Sony dealer.