DHC-NX5MD, HMC-NX5MD - 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)”.

Procedure for using the Self-Diagnosis Function (Error History Display Mode).
Note: 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.

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 (page 27).

You tried to record a CD or MD 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.

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 on page 44.

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

prevents making a digital copy (see page 71).
You cannot record a CD-R.

There is an error in the internal data that the
system needs in order to operate.
cConsult your nearest Sony dealer.

There is a problem with the optical pickup.
cThe optical pickup may have failed. Consult

your nearest Sony dealer.

One of the following messages may appear or
flash in the display during operation.

The MD deck is pausing the recording because
silence continued for about 30 seconds or more
during digital recording.

The inserted recordable MD is new, or all
tracks on the MD have been erased.

• A pre-mastered MD is in the deck.
• You tried to edit during Programme or

Shuffle Play.

• You tried to change the recorded level or

perform Fade-in or Fade-out operation after
the Daily Timer or Recording Timer had
activated and turned on the power.

The function is switched to MD.

The editing operation of MDs is completed.

Description

Error Code

10

12

20

21

22

23

24

30

31

40

41

42

43

50

51

Could not load

Loading switches combined incorrectly

Timed out without reading the top of PTOC

Could read top of PTOC, but detected error

Timed out without accessing UTOC

Timed out without reading UTOC

Error in UTOC

Could not start playback

Error in sector

Retry cause generated during normal recording

Retried in DRAM overflow

Retry occurred during TOC writing

Retry aborted during S.F editing

Other than access processing, and could not read address.

Focus NG occurred and overran.