7
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.
Summary of Contents for MDS-JE440 - Md Player
Page 42: ...MDS JE440 42 42 6 10 SCHEMATIC DIAGRAM MAIN SECTION 3 3 See page 47 for IC Block Diagrams ...
Page 43: ...MDS JE440 43 43 6 11 PRINTED WIRING BOARD POWER SECTION ...
Page 44: ...MDS JE440 44 44 6 12 PRINTED WIRING BOARD DISPLAY SECTION ...
Page 45: ...MDS JE440 45 45 6 13 SCHEMATIC DIAGRAM DISPLAY SECTION See page 34 for Waveforms ...