Sony MXD-D3, Service Manual

Page: 9 / 88

9
IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF
BD (MD) BOARD) ARE REPLACED
The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need
to look at the value on the optical pick-up label. When replacing the optical pick-up or non-volatile memory (IC171 of BD (MD) board),
record the IOP value on the optical pick-up according to the following procedure.
Record Procedure:
1. Press the
x (CD),
[CLEAR]
(CD), x (MD) and
[CLEAR]
(MD) buttons at the same time.
2. Press the
[ AMS ]
(MD) knob and
x
(MD) button to display “ <0> To Normal”.
3. Turn the
[ AMS ]
(MD) knob and when “ <5> MD Test” is displayed, press the
[ AMS ]
(MD) knob.
4. Turn the
[ AMS ]
(MD) knob to display “[Service]”, and press the
[YES]
button.
5. Turn the
[ AMS ]
(MD) knob to display “Iop Write” (C28), and press the
[YES]
button.
6. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.
7. Input the IOP value written on the optical pick-up label.
To select the number : Turn the
[ AMS ]
(MD) knob.
To select the digit : Press the
[ AMS ]
(MD) knob.
8. When the
[YES]
button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).
9. As the adjustment results are recorded for the 6 value. Leave it as it is and press the
[YES]
button.
10. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop
Write”.
11. Press the ? /
1
button to turn the power OFF.
Display Procedure:
1. Press the
x (CD),
[CLEAR]
(CD), x (MD) and
[CLEAR]
(MD) buttons at the same time.
2. Press the
[ AMS ]
(MD) knob and x (MD) button to display “ <0> To Normal”.
3. Turn the
[ AMS ]
(MD) knob and when “ <5> MD Test” is displayed, press the
[ AMS ]
(MD) knob.
4. Turn the
[ AMS ]
(MD) knob to display “[Service]”, and press the
[YES]
button.
5. Turn the
[ AMS ]
(MD) knob to display “Iop Read” (C27).
6. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ : indicates the IOP value on the optical pick-up label.
##.#
: indicates the IOP value after adjustment
7. To end, press the
[ AMS ]
(MD) knob or
[MENU/NO]
button to display “Iop Read”. Press the
?
/
1
button to turn the power
OFF.
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