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[How to Record and Display the IOP Data When Replacing the Optical Pick-up and Non-volatile Memory
(BD Board IC171)]
The IOP data that is indicated on the optical pick-up, can be saved in the non-volatile memory of the MDS-JA555ES. Saving the IOP data in
the memory eliminates the needs to look at the printed value on the label that is attached on the surface of optical pick-up, and enables to view
the IOP data on display. When the optical pick-up is replaced or when the non-volatile memory (IC171 on BD board) is replaced, save the
IOP value that is printed on the label on the surface of optical pick-up by the following procedure.
How to Record the IOP Data:
1. While pressing the
l
AMS
L
knob and the
x
button at the same time, connect the AC power plug to the wall outlet, then remove
your hands from the
l
AMS
L
knob and
x
button at the same time. When the MDS-JA555ES enters the test mode, the message
“[Check]” appears.
2. Rotate the
l
AMS
L
knob until the message “Service” appears. Then press the YES button.
3. Rotate the
l
AMS
L
knob until the message “lop Write” (C28) appears. Then press the YES button.
4. “Ref=@@@.@” (@ is arbitrary number) appears and the values that can be changed as desired flash.
5. Input the IOP value that is printed on the optical pick-up.
Selection of alphanumeric characters : Rotate the
l
AMS
L
knob.
Selection of digit
: Press the
l
AMS
L
knob.
6. Press the YES button. Then display changes to “Measu= @@@.@” (@ is arbitrary number).
7. The value that is shown step 6, is the result adjustment and should not be saved. So leave the value of step 6 as it is, and press the YES
button.
8. The message “Complete!” appears for a moment, and the value is saved in the non-volatile memory. The message “Iop Write” appears.
9. Upon completion of data saving, press the REPEAT button.
How to Display the IOP Data:
1. While pressing the
l
AMS
L
knob and the
x
button at the same time, connect the AC power plug to the wall outlet, then remove
your hands from the
l
AMS
L
knob and
x
button at the same time. When the MDS-JA555ES enters the test mode, the message
“[Check]” appears.
2. Rotate the
l
AMS
L
knob until the message “Service” appears. Then press the YES button.
3. Rotate the
l
AMS
L
knob until the message “lop Write” (C28) appears. Then press the YES button.
4. The message “@@.@/##.#” appears. The contents that are saved in the non-volatile memory appear.
@@.@
: The IOP value that is printed on optical pick-up
##.#
: The IOP value after adjustment
5. To exit the data display, press the
l
AMS
L
knob or the MENU/NO button to show the message “Iop Read”. Then press the
REPEAT button.