Sony MDS-JE470 Service Manual - Page 7

Iop Data Recording And Display When Optical Pick-up And Non-volatile Memory Ic195

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MDS-JE470 Iop DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 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 (IC195 of BD board), record the Iop value on the optical pick-up according to the following procedure. Record Precedure: 1. While pressing the l AMS L knob and x button, connect the power plug to the outlet, and release the l AMS L knob and x button. 2. Rotate the l AMS L knob to display "[Service]", and press the YES button. 3. Rotate the l AMS L knob to display "Iop Write" (C05), 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 l AMS L knob. To select the digit : Press the l AMS L 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 l AMS L knob and x button, connect the power plug to the outlet, and release the l AMS L knob and x button. 2. Rotate the l AMS L knob to display "[Service]", and press the YES button. 3. Rotate the l AMS L knob to display "Iop Read" (C26). 4 is displayed and the recorded contents are displayed. @@.@ : indicates the Iop value labeled on the optical pick-up. ##.# : indicates the Iop value after adjustment 5. To end, press the l AMS L button or MENU/NO button to display "Iop Read". Then press the REPEAT button. 7

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7
MDS-JE470
Iop DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 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 (IC195 of BD board), record
the Iop value on the optical pick-up according to the following procedure.
Record Precedure:
1.
While pressing the
l
AMS
L
knob and
x
button, connect the power plug to the outlet, and release the
l
AMS
L
knob and
x
button.
2.
Rotate the
l
AMS
L
knob to display “[Service]”, and press the
YES
button.
3.
Rotate the
l
AMS
L
knob to display “Iop Write” (C05), 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
l
AMS
L
knob.
To select the digit
: Press the
l
AMS
L
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
l
AMS
L
knob and
x
button, connect the power plug to the outlet, and release the
l
AMS
L
knob and
x
button.
2.
Rotate the
l
AMS
L
knob to display “[Service]”, and press the
YES
button.
3.
Rotate the
l
AMS
L
knob to display “Iop Read” (C26).
4.
“@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ : indicates the Iop value labeled on the optical pick-up.
##.#
:
indicates the Iop value after adjustment
5.
To end, press the
l
AMS
L
button or
MENU/NO
button to display “Iop Read”. Then press the
REPEAT
button.