MDS-LSA1 - Sony Audio Service Manual (repair manual). Page 8

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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  . button and  x  button, connect the power plug to the outlet, and release the  .  button and  x  button.
2. Press the  .  or  >  button to display “[Service]”, and press the  7  button.
3. Press the  .  or  >  button to display “Iop Write” , and press the  7  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 : Press the  .  or  > button.
To select the digit

: Press the  POWER  button.

6. When the  7  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  7  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  POWER “X2”  button to complete.

Display Precedure:
1. While pressing the  .  button and  x  button, connect the power plug to the outlet, and release the  .  button and  x  button.
2. Press the  .  or  >  button to display “[Service]”, and press the  7  button.
3. Press the  .  or  >  button to display “Iop Read” , and press the  7  button.
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   x  button to display “Iop Read”. Then press the  POWER “X2”  button.

NOTE
• The MDS-LSA1 is designed so that a number of functions which may be performed in test mode may be performed by clicking a single

button.

Switching between functions
Pressing the  INPUT  button causes the display to change as indicated below.

Hidden t “X2”

The functions performed by each button change in accordance with the DISPLAY mode.
Note that the following notation is used herein:
 POWER ............. Press the  POWER  button when HIDDEN.
 POWER “X2” .... Press the  POWER  button while “X2” is lit.

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