HCD-MD555 - Sony Audio Service Manual (repair manual). Page 6

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1. Select the desired item of history using the   MULTI JOG   dial.
2. Press the   MD WALKMAN SYNC   button to display the desired content of the selected error item.
3. Press the   MD WALKMAN SYNC   button again to return to the history item display screen.

Table 1 shows error history items and the contents.

Table 1

Display on screen

Contents of error history

total rec

Displays the recording time.
The display appears in “r

 h”.  This is the accumulated time laser in the power high operation. About

1/4 of the actual recording time.  The time is shown in the range of 0h to 65535h in decimal number.

total play

Displays the playback time.
The display appears in “p

 h”.  This is the accumulated time of actual playback in which pause

time is not counted. The time is shown in the range of 0h to 65535h in decimal number.

retry err

Displays the accumulated count of record retry error and playback retry error.

The display appears in “r

 p

”. “r” indicates the record retry error count, and “p” indicates the playback

retry error count.  The count is shown in the range of 00 to FF in hexadecimal number.

total err

Displays the total count of error.
The display appears in “total

”.   The count is shown in the range of 00 to FF in hexadecimal number.

err history

Displays the error contents from the latest error to the last ten errors.

The display appears in “0  E@@” (*2).   The history number is shown in  .  The smaller number means the
newer history. (00 is the newest error.).  The error code is indicated in @@.  Refer to the following table for
contents the error codes.  Turn the  MULTI JOG  dial and you can change the error No.

er refresh (*3)

This is the mode with which you can clear the histories of “retry err”, “total err”, and “err history”.
Perform this operation to clear the past error history before returning the repaired product to the customer.  To
clear the error histories, press the   MULTI JOG   button.  After “er refresh?” is displayed, press the   ENTER/
YES   button.  The error histories are cleared and the message “Complete!” appears for a moment.
When this mode is executed, be sure to check the following.

•

 Data must have been cleared.

•

 Perform recording and playback, and check that the mechanism operates correctly.

tm refresh (*3)

This the mode with which you can clear the histories of “total rec” and “total play”.  These histories are used as
the reference when replacing the optical pickup.
Perform this operation to clear the histories when the optical pickup is replaced with the new one.  To clear the
error histories, press the   MULTI JOG   button.  After “tm refresh?” is displayed, press the   ENTER/YES
button.  The error histories are cleared and the message “Complete!” appears for a moment.
When this mode is executed, be sure to check the following.

• 

Data must have been cleared.

•

 Perform recording and playback, and check that the mechanism operates correctly.

(*2) Contents of each error display are shown in Table 2.
(*3) All of error contents are cleared by performing “er refresh” and “tm refresh”.

Perform this operation and clear the error history only when optical block is replaced for maint enance work.  Never perform this
operation in other cases.

Table 2

Display

Error contents

0  E00

No errors

0  E01

Disc error  Cannot read PTOC

0  E02

Disc error  UTOC error

0  E03

Loading error

0  E04

Cannot read the address

0  E05

Out of FOK

0  E06

Focus does not lock

0  E07

Retry of recording

0  E08

Record retry error

0  E09

Retry of playback

0  E0A

Playback retry error