MDS-JB940 - Sony Audio Service Manual (repair manual). Page 5

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Displays the total recording time.

When the total recording time is one minute or longer, displays the time and minute.
When the total recording time is less than one minute, displays “Under 1 min”.

The displayed time is about 1/4 of the actual recording time when the laser is set to the high power state.

Displays the total playback time.

When the total playback time is one minute or longer, displays the time and minute.
When the total playback time is less than one minute, displays “Under 1 min”.

Displays the total time when the spindle motor rotates.

When the total rotation time is one minute or longer, displays the time and minute.
When the total rotation time is less than one minute, displays “Under 1 min”.

Displays the total number of retries during recording and number of retry errors during playback.
Displayed as “r xx p yy”. “xx” indicates the number of retries during recording, “yy” indicates the number of retry
errors during playback.
The numbers are displayed in hexadecimal from 00 to FF.

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

Displays the last ten errors.
Displayed as “0x ErrCd@@”.
“x” indicates the history number. A smaller number indicates a more recent error (00 is the latest). @@ indicates the
error code. The error history number is selected by turning the  l AMS L  knob.

Displays the last five retry addresses.
Displayed as “xx ADRS yyyy”. “xx” indicates the history number. “yyyy” indicates the cluster where the retry
occurred. The history number is selected by turning the  l AMS L  knob.

Mode which erases the error history and the retry address history

[Operation procedure]
1

 When “er refresh” is displayed, press the  l AMS L  knob.

2

 After the display changes to “er refresh?”, press the  YES  button.

     The “Complete!” message indicates that the operation has ended.

After executing this mode, be sure to check the following:

• The data has been erased.

• The mechanism runs normally when recording and playback are performed.

Mode which erases the total time of “op rec tm” and “op play tm”
These histories are used as a guideline for the time to replace the optical pick-up. After replacing the optical pick-up,
perform this operation to erase the history.

[Operation procedure]
1

 When “op change” is displayed, press the  l AMS L  knob.

2

 After the display changes to “op change?”, press the  YES  button.

     The “Complete!” message indicates that the operation has ended.

Mode which erases the total time of “spdl rp tm”
The history is used as a guideline for the time to replace the spindle motor. After replacing the spindle motor, perform
this operation to erase the history.

[Operation procedure]
1

 When “spdl change” is displayed, press the  l AMS L  knob.

2

 After the display changes to “spdl change?”, press the  YES  button.

     The “Complete!” message indicates that the operation has ended.

op rec tm

op play tm

spdl rp tm

retry err

total err

err history

retry adrs

er refresh

op change

spdl change

10

12

20

21

22

23

24

30

Loading error

The combination of loading switches is not acceptable.

Time out. The beginning of PTOC cannot be read.

Contents error. The beginning of PTOC can be read.

Time out. Access to UTOC failed.

Time out. UTOC cannot be read.

Contents error of UTOC

Playback start error

31

40

41

42

43

50

51

There is an abnormality in the sector contents.

An error caused a retry during continuous recording.

Retry was executed due to DRAM overflow.

Retry was executed during TOC writing.

S.F Edit was aborted due to retry.

Address cannot be read although access processing is

not in progress.

Runaway due to focus NG