Sony HCD-MD555 Service Manual ▷ View online
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SECTION 1
SELF-DIAGNOSIS FUNCTION
OPERATING THE ERROR HISTORY MODE
Note:
The self-diagnosis function is performed using the “error history display mode” in the test mode. The following procedure describes
only the minimum required operating procedure to enter the error history mode. Therefore be careful not to enter any other modes by
mistake. If you have entered any other modes by mistake, press the MENU/NO button and exit the mode.
only the minimum required operating procedure to enter the error history mode. Therefore be careful not to enter any other modes by
mistake. If you have entered any other modes by mistake, press the MENU/NO button and exit the mode.
1. Press ENTER/YES , NAME EDIT and MD3 .
(If the [Check] is not displayed, press the MENU/NO or
p to let [Check] appear.)
2. Turn the MULTI JOG to display “[Service]”, and press the ENTER/YES button.
3. Turn the MULTI JOG to display “ERR DP MODE” .
4. Press the ENTER/YES button to enter the error history mode and the message “total rec” appears.
5. Select the item to be displayed or to be executed using the MULTI JOG .
6. When you want to display or execute the selected item, press the MULTI JOG .
7. If you press the MULTI JOG again, the display returns to step 4.
8. You can exit the error history mode by pressing the MENU/NO button. The message “ERR DP MODE” is displayed.
9. You can exit the test mode by pressing the REPEAT . Then the HCD-MD555 enters the standby state, the disc is ejected, and the display
3. Turn the MULTI JOG to display “ERR DP MODE” .
4. Press the ENTER/YES button to enter the error history mode and the message “total rec” appears.
5. Select the item to be displayed or to be executed using the MULTI JOG .
6. When you want to display or execute the selected item, press the MULTI JOG .
7. If you press the MULTI JOG again, the display returns to step 4.
8. You can exit the error history mode by pressing the MENU/NO button. The message “ERR DP MODE” is displayed.
9. You can exit the test mode by pressing the REPEAT . Then the HCD-MD555 enters the standby state, the disc is ejected, and the display
exits the test mode.
MD SECTION
— 6 —
DISPLAYING CONTENTS OF THE ERROR HISTORY
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.
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
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
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 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.
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.
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.
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”.
(*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.
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
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OPERATING THE DISPLAYED HISTORIES
When the three buttons of ENTER/YES , PRESET EQ , and
CD3 are pressed simultaneously, and the mechanical error count
and the count of “NO DISC” that optical system has judged, are
displayed.
CD3 are pressed simultaneously, and the mechanical error count
and the count of “NO DISC” that optical system has judged, are
displayed.
When the buttons that are shown in Table 2 are pressed in this state,
the following operations are executed as listed below.
the following operations are executed as listed below.
Table 2
Button
Function
CD1
Mechanical error code from the latest error to
the last ten errors are displayed each time this
button is pressed. (Note 1)
the last ten errors are displayed each time this
button is pressed. (Note 1)
CD2
The reasons why “NO DISC” the optical
system has judged to be an error, are displayed
from the latest error to the last ten errors are
displayed each time this button is pressed.
(Note 2)
system has judged to be an error, are displayed
from the latest error to the last ten errors are
displayed each time this button is pressed.
(Note 2)
CD1
6
Resets the mechanical error count.
CD2
6
Resets the “NO DISC” count.
(Note 1)
Mechanical error code
(a) Mechanical error count
The latest error “00” to the last ten error “09”
(b) “FF”
: Mechanical error after mechanism is initialized.
(c) “1
∗
”
: Mechanical error during loading the tray in between
”2
∗
”
the stocker position and the deeper end.
(d) “Don’t care”
(e) “2
(e) “2
∗
”
: Mechanism error while the stocker is moving up/down.
(f) “2
∗
”
: Mechanism error of the clumper and that during mode
switching
CD SECTION
Emc =
Edc =
Mechanical error count
∗∗
∗∗
No disc count
E M
(a)
(b)
(c)
(d)
(e)
(f)
∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗
(Note 2)
NO DISC code in the order of occurrence
(a) The number of NO DISC
The latest one “00” to the last ten “09”
(b) “01”
: Focus error
“02”
: GFS error
“03”
: Setup error
(c) “00”
: Judged as NO DISC without chucking retry
“02”
: Judged as NO DISC after chucking retry is
performed
(d) The status, when NO DISC judgment is made
“1
∗
”
: Stop
“2
∗
”
: Set up
“3
∗
”
: TOC read
“4
∗
”
: Access
“5
∗
”
: Play
“6
∗
”
: Pause
“7
∗
”
: Manual search (play)
“8
∗
”
: Manual search (pause)
E D
(a)
(b)
(c)
(d)
∗∗ ∗∗ ∗∗ ∗∗
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SECTION 2
SERVICE NOTE
CD-TEXT TEST DISC
This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1.
Turn ON the power, set the disc on a tray, and chuck the disc.
2.
Press the
· button and play back the disc.
3.
The following will be displayed on the fluorescent indicator tube.
Display : 1kHz/0 dB/L&R
Display : 1kHz/0 dB/L&R
4.
Rotate MULTI JOG dial or press
= AMS + of a remote commander to switch the track. The text data of each track will be
displayed.
For details of the displayed contents for each track, refer to “Table 1, 2 : CD-TEXT TEST DISC Recorded Data Contents and Display”.
For details of the displayed contents for each track, refer to “Table 1, 2 : CD-TEXT TEST DISC Recorded Data Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it.
Table 1 :
CD-TEXT TEST DISC Recorded Data Contents and Display (TRACKS No. 1 to 32:Normal Characters)
* Other channel is infinity zero.
TRACK
No.
Recorded contents
Display
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1kHz/0dB/L&R
20Hz/0dB/L&R
40Hz/0dB/L&R
100Hz/0dB/L&R
200Hz/0dB/L&R
500Hz/0dB/L&R
1kHz/0dB/L&R
5kHz/0dB/L&R
7kHz/0dB/L&R
10kHz/0dB/L&R
16kHz/0dB/L&R
18kHz/0dB/L&R
20kHz/0dB/L&R
1kHz/0dB/L&R
1kHz/-1dB/L&R
1kHz/-3dB/L&R
1kHz/-6dB/L&R
1kHz/-10dB/L&R
1kHz/-20dB/L&R
1kHz/-60dB/L&R
1kHz/-80dB/L&R
1kHz/-90dB/L&R
No-signal emphasis: ON//L&R
No-signal emphasis: OFF//L&R
400Hz+7kHz(4:1)/0dB/L&R
400Hz+7kHz(4:1)/-10dB/L&R
19kHz+20kHz(1:1)/0dB/L&R
19kHz+20kHz(1:1)/-10dB/L&R
100Hz/0dB/L*
1kHz/0dB/L*
10kHz/0dB/L*
20kHz/0dB/L*
Same as the values shown in the left column.
Infinity Zero w/o emphasis // L&R
Infinity Zero with emphasis // L&R
Same as the values shown in the left column.
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