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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)”.

About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-S55EM/provided with unit: 1-476-664-21)
buttons. These operations are indicated as “R” in this manual.
Example:

MENU/NO “R”

...Press the 

[MENU/NO]

 button of the remote commander.

Incorrect operations may be performed if the MD test mode is not entered properly.
In this case, press the

?/1

button to turn the power off, and retry to enter the MD test mode.

Perform the self-diagnosis function in the “error history display mode” in the MD 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 “R”

button to exit the

mode.

Procedure:
1. Press the

?/1

button to turn the power on.

2. Press the 

[FUNCTION]

 button to set the MD function.

3. Press three buttons of

M >

 

TUNING+

  , 

[REC MODE]

, and  

. m 

 (MD)

  simultaneously to enter the MD test mode and display “[Check]”.

4. Press the

. 

“R”

or

 > 

“R”

button to display “[Service]”.

5. Press the

ENTER/YES “R”

button to display “AUTO CHECK”, and press the 

>

 “R”

button to display “Err Display”.

6. Press the

ENTER/YES “R”

button to enter the error history mode and display “op rec tm”.

7. Select the contents to be displayed or executed using the

.

 

“R”

or

> 

“R”

button.

8. Press the 

[CD  SYNC  NORMAL]

 button to light up “IT” indicator, then press the 

[REC  MODE]

 button will display or execute the

contents selected.

9. Press the 

[REC MODE]

 button another time returns to step 7.

10. Press the

MENU/NO “R”

button displays “Err Display” and release the error history mode.

11. To release the MD test mode, press the 

[REPEAT STEREO/MONO]

 button to display “Initialize” and release the MD test 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 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.

t Remove the MD and slide the tab to close the

slot.

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

t Remove the disc and turn off the system once,

then turn it on again.

Recording could not be performed properly.

t Move 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.

t Replace the MD and start recording over from

the beginning.

The MD deck cannot read the disc information
properly.

t Remove the MD once, then insert it again.

The MD deck cannot read the disc information
properly.

t Replace the MD.
t Erase 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 you tried to record a
CD-R (Recordable CD).

t The Serial Copy Management System prevents

making a digital copy (see page 44). You cannot
record a CD-R.

This appears momentarily because of the signal of
the digital broadcast during recording.

t There is no affect on the recorded contents.

No component is connected to the DIGITAL
OPTICAL IN jack, or a digital component is not
connected properly.

t Connect a digital component to the DIGITAL

OPTICAL IN jack properly using a digital
connecting cable.

The connected digital component is not turned on.

t See the operating instructions supplied with the

connected component and confirm whether the
component is turned on.

The digital connecting cable connected to the
DIGITAL OPTICAL IN jack is pulled out, or the
connected digital component is turned off during
digital recording.

t Connect the cable, or turn on the digital

component.

There is an error in the internal data that the system
needs in order to operate.

t Consult your nearest Sony dealer.

There is a problem with the optical pickup.

t The optical pickup may have failed. Consult your

nearest Sony dealer.

3

Display

Details of History

op rec tm

Displays the recording time.
Displayed as “rssmin”.
The displayed time is the total time the laser is set to the high power state.
This is about 1/4 of the actual recording time.
The time is displayed in decimal digits from 0h.

op play tm

Displays the playback time.
Displayed as “pssssssh”. The displayed time is the total of the actual play time.
The time is displayed in hexadecimal digits from 0h.

spdl rp tm

Displays the spindle motor running time.
Displayed as “rssssssh”.
The time is displayed in hexadecimal digits from 0h.

retry err

Displays the total number of retries during recording and number of retry errors during play.
Displayed as “r ss p ss”.
“r” indicates the retries during recording while “p” indicates the retry errors during play.
The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF.

total err

Displays the total number of errors.
Displayed as “total ss”.
The number of errors is displayed in hexadecimal digits from 00 to FF.

err history

Displays the 10 latest errors.
Displayed as “0s ErrCd @@”.
s indicates the history number. The smaller the number, the more recent is the error. (00 is the latest)
@@ indicates the error code.
Refer to the following table for the details. The error history can be switched by pressing the

. 

“R”

or

> 

“R”

button.

retry adrs

Display the 5 latest retry address.
Display as “ss ADRS@@@@”.
ss indicates the history number. The smaller the number, the more recent is the error. (00  is the latest)
@@@@ indicates the cluster of retry address.
The number of retry address can be switched by pressing the

.

“R”

or

> 

“R”

button.

er refresh

Mode to clear the error history and retry address history.
Procedure:
1) Press the 

[REC MODE]

 button.

2) The display will change to “er refresh?”, and then press the

ENTER/YES “R”

button.

The operation is over if “Complete!” is displayed.
After this mode was executed, check the following:
• The data have been cleared.
• Perform the recording and playing to check that the mechanism operates normally.

tm refresh

Mode to clear cumulative time of “op rec tm” and “op play tm”.
Procedure:
1) Press the 

[REC MODE]

 button.

2) The display will change to “tm refresh?”, and then press the

ENTER/YES “R”

button.

The operation is over if “Complete!” is displayed.

op change

Mode to clear cumulative time of “op rec tm” and “op play tm”.
These historical data are used to determine the timing when the optical pick-up is to be replaced. When the optical
pick-up was replaced, perform this operation to clear historical data.
Procedure:
1) Press the 

[REC MODE]

 button.

2) The display will change to “op change?”, and then press the

ENTER/YES “R”

button.

The operation is over if “Complete!” is displayed.

spdl change

Mode to clear cumulative time of “spdl rp tm”.
This historical data is used to determine the timing when the spindle motor is to be replaced. When the spindle
motor was replaced,

perform this operation to clear historical data.

Procedure:
1) Press the 

[REC MODE]

 button.

2) The display will change to “spdl change?”, and then press the

ENTER/YES “R”

button.

The operation is over if “Complete!” is displayed.

4

Error Code

Details of Error

10

Loading failed

12

Loading switch combination is illegal

20

Head of PTOC could not be read within the
specified time

21

Head of PTOC could be read but its content is
erroneous

22

Access to UTOC could not be made within the
specified time

23

UTOC could be not read within the specified
time

24

Content of UTOC is erroneous

30

Playing could not start

31

Content of sector is erroneous

40

Cause of retry occurred during normal
recording

41

D-RAM overflowed and retry was executed

42

Retry was executed during the writing to TOC

43

S.F editing was interrupted by retry

50

Address could not be read except in access
processing

51

Focusing failed and it is out of control

60

Unlock retry

5

Procedure:
1. Press the

?

/1

button to turn the power on.

2. Press the [FUNCTION] button to set the CD function.
3. Press three buttons of

x 

 (CD), 

[             TUNING-]

 and

[TUNER/BAND]

 simultaneously.

4. The set enter the CD test mode (menu) and displays “dvt ERR

CODE”.

If the consequence was displayed except “dvt ERR CODE”, press the

[               TUNING-]

,  

[                TUNING+]

button to display “dvt

ERR CODE”.

Procedure:
1. Press the

Z

(CD) button to display as bellow.

(a) Number of mechanical error.
(b) Number of no disc error that occurred after chucking.

2. Press the

x

(CD) button and return to CD test mode menu

(“dvt ERR CODE” is displayed).

Procedure:
1. In the CD test mode menu, press the 

[            TUNING-]

,

[            TUNING+]

button to display “dvt ECODE MEC”.

2. Press the

Z

(CD) button to display as bellow.

(a) The number of mechanical error.

Latest one “00” to last ten “09”
(Press the 

[             TUNING-]

,

[            TUNING+]

 button to

change the error number)

(b) FF: Mechanical error, when normal operation.

Other display: Mechanical error, between mechanical initialize.

(c), (d), (e): Not used in servicing.

3. Press the

x

(CD) button and return to CD test mode menu

(“dvt ECODE MEC” is displayed).

Display

Emc=**Edc=**

(a)

(b)

.m

Display

E**M********00

(c)

(a)

(b)

(d) (e)

Procedure:
1. In the CD test mode menu, press the 

[           TUNING-]

,

[            TUNING+]

 button to display “dvt ECODE BU”.

2. Press the

Z

(CD) button to display as bellow.

(a) The number of no disc error.

Latest one “00” to last ten “09”
(Press the 

[            TUNING-]

 or  

[            TUNING+]

 button to

change the error number)

(b) 01: Focus error

02: GFS error
03: Set up error
04: Focus error (not used in servicing)

(c) 00:No disc error (Did not chucking retry)

02: No disc error (Chucking retry to completion)

(d) The status, when determined no disc error.

2x: During setting up
3x: During reading TOC
4x: During accessing
5x: During playback
6x: During pause
7x: During manual search (during playback)
8x: During manual search (during pause)

3. Press the

x

(CD) button and return to CD test mode menu

(“dvt ECODE BU” is displayed).

When returning the unit to the customer after completing repairs,
perform this to erase the past error history.
Procedure:
1. In the CD test mode menu, press the 

[            TUNING-]

,

[             TUNING+]

 button to display “dvt ECNT0 MEC”. (When

erase the mechanical error)
Or one more press the 

[          TUNING+]

 button to display

“dvt ECNT0 BU”. (When erase the no disc error)

2. Press the

Z

(CD) button to erase the error history (mechanical

error or no disc error) and display as bellow.

Press the

?

/1

button to turn the power off.

Display

E**D********

(c)

(a)

(b)

(d) (e)

Display

Emc=00Edc=00

.m

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