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IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF
BD 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 label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC171 of BD board),
record the IOP value on the optical pick-up according to the following procedure.
Record Precedure:
1. While pressing the AMS knob and p button, connect the power plug to the outlet, and release the AMS knob and p button.
2. Rotate the AMS knob to display “[Service]”, and press the YES button.
3. Rotate the AMS knob to display “lop.Write”, and press the YES button.
4. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.
5. Input the IOP value written on the optical pick-up.
To select the number : Rotate the AMS knob.
To select the digit : Press the AMS knob.
6. When the YES button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).
7. As the adjustment results are recorded for the 6 value. Leave it as it is and press the YES button.
8. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop
Write”.
9. Press the REPEAT button to complete.
Display Precedure:
1. While pressing the AMS knob and p button, connect the power plug to the outlet, and release the AMS knob and p button.
2. Rotate the AMS knob to display “[Service]”, and press the YES button.
3. Rotate the AMS knob to display “lop.Read”.
4. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ : indicates the Iop value labeled on the pick-up.
##.# : indicates the Iop value after adjustment
5. To end, press the AMS button or MENU/NO button to display “Iop Read”. Then press the REPEAT button.