MDS-JA333ES - Sony Audio Service Manual (repair manual). Page 8

8

The IOP data that is indicated on the optical pick-up, can be saved in the non-volatile memory of the MDS-JA333ES.  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.

1. While pressing the  lAMSL  knob and the  x  button at the same time, connect the AC power plug to the wall outlet, then remove

your hands from the  lAMSL  knob and  x  button at the same time.  When the MDS-JA333ES enters the test mode, the message
“[Check]” appears.

2. Rotate the  lAMSL  knob until the message “Service” appears.  Then press the  YES  button.
3. Rotate the  lAMSL  knob until the message “Iop Write” (C05) 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  lAMSL  knob.
Selection of digit

: Press the  lAMSL  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” (C05)

appears.

9. Upon completion of data saving, press the  REPEAT  button.

1. While pressing the  lAMSL  knob and the  x  button at the same time, connect the AC power plug to the wall outlet, then remove

your hands from the  lAMSL  knob and  x  button at the same time.  When the MDS-JA333ES enters the test mode, the message
“[Check]” appears.

2. Rotate the  lAMSL  knob until the message “Service” appears.  Then press the  YES  button.
3. Rotate the  lAMSL  knob until the message “Iop Write” (C05) 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  lAMSL  knob or the  MENU/NO  button to show the message “Iop Read” (C26). Then press

the  REPEAT  button.