Overall Adjustment Mode; Self-Diagnosis Result Display Mode - Sony MZ-G755 Service Manual

MZ-G755
5. The display changes a shown below each time the
[ENTER]
key on the set is pressed.
• Address & Adjusted Value Display
This set LCD display
3A4S1D
adjustment value
address
• Jitter Value & Adjusted Value Display
This set LCD display
0FEJ1D
adjustment value
jitter value
• Block Error Value & Adjusted Value Display
This set LCD display
063B1D
adjustment value
block error value
• ADIP Error Value & Adjusted Value Display
This set LCD display
072A1D
adjustment value
ADIP error value
• Item Title Display
This set LCD display
LrefPw 1D
item title
adjustment value
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).

4-7. 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 18).
14
0 11
item number
0 11
item number
0 11
item number
0 11
item number
0 11
item number
key to return to the
x

4-8. 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 pick-up 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 pick-up 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
self-diagnosis result display mode where the LCD display as
shown below.
This set LCD display
1 0010
history
code
Total recording time when error occurred
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.
.
1
N
N1
N2
R_
XX
: Error code
: Total recording time
[ENTER]
If the key on set 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).
[ENTER]
key activates the
0 XX
error display code
0 XX
0 XX
0 XX
0 XX
0 XX
x key