Sony Walkman MZ-R900 Service Manual page 14

MZ-R900
5. The display changes a shown below each time the
[JOG LEVER $L% ]
(up) key or
R
commander is pressed.
• Address & Adjusted Value Display
Remote commander LCD display
011 C 6 8 S 0 1
address
item number
• Jitter Value & Adjusted Value Display
Remote commander LCD display
011 O F F J 0 1
jitter value
item number
• Block Error Value & Adjusted Value Display
Remote commander LCD display
011 0 6 3 B 0 1
block error value
item number
• ADIP Error Value & Adjusted Value Display
Remote commander LCD display
011 0 5 9 A 0 1
ADIP error value
item number
• Item Title Display
Remote commander LCD display
011 L r e f P w 0 1
item title
item number
However in the power mode (item number 700's), only the
item is displayed.
6. Quit the manual mode, and press the
test mode (display check mode).
Overall Adjustment Mode
Mode to adjust the servo automatically in all items.
Normally, automatic adjustment is executed in this mode at the
repair.
For further information, refer to "Section 5 Electrical Adjustments"
(see page 17).
14
[DISPLAY]
key on the remote
adjusted value
adjusted value
adjusted value
adjusted value
adjusted value
x key to return to the
Self-Diagnosis Result Display Mode
This set uses the self-diagnostic function system in which if an
error occurred during the recording or playing, the mechanism
control block and the power supply control block in the
microcomputer detect it and record its cause as history in the
nonvolatile memory.
By checking this history in the test mode, you can analyze a fault
and determine its location.
Total recording time is recorded as a guideline of how long the
optical pickup has been used, and by comparing it with the total
recording time at the time when an error occurred in the self-
diagnosis result display mode, you can determine when the error
occurred.
Clear both self-diagnosis history data and total recording time, if
the optical pickup was replaced.
• Self-Diagnosis Result Display Mode Setting Method
1. Setting the test mode (see page 12).
2. In the display check mode, press the
[DISPLAY]
key or key on the remote commander activates the
self-diagnosis result display mode where the LCD display as
shown below.
Remote commander LCD display
0XX 1 0 0 0 0
history code Total recording time when error occurred
error display code
3. Then, each time the key is pressed, LCD display descends
>
by one as shown below. Also, the LCD display ascends by one
when the key is pressed.
.
0XX 1 * * * *
0XX N * * * *
0XX N 1 * * * *
0XX N 2 * * * *
0XX R _ * * * *
XX
: Error code
* * * * : Total recording time
[JOG LEVER $L% Q]
If the (up) key or the
remote commander is pressed with this display, the LCD switches
to the simple display mode.
4. Quit the self-diagnosis result display mode, and press the
to return to the test mode (display check mode).
[JOG LEVER $L% ]
R
1
1
[DISPLAY]
key on
x
(up)
key