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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