Sony KMS-2608/J1N User Manual

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Note:
Mode which sets the adjustment results recorded in the non-vola-
tile memory to the initial setting value. However the results of the
temperature compensation offset adjustment will not change to the
initial setting value.
If initial setting is performed, perform all adjustments again ex-
cluding the temperature compensation offset adjustment.
For details of the initial setting, refer to “5-4. Precautions on Ad-
justments” and execute the initial setting before the adjustment as
required.

Setting Procedure :
1. Rotate the  AMS  knob to display “ADJ CLEAR”.
2. Press the  YES  button. “Complete!” will be displayed momen-

tarily and initial setting will be executed, after which “ADJ
CLEAR” will be displayed.

The IOP data can be recorded in the non-volatile memory. The Iop
value on the label of the optical pick-up and the Iop value after the
adjustment will be recorded. Recording these data eliminates the
need to read the label on the optical pick-up.

Recording Procedure :
1. While pressing the  AMS  knob and  x  button, connect the

power plug to the outlet, and release the  AMS  knob and  x
button.

2. Rotate the  AMS  knob to display “[Service]”, and press the

YES  button.

3. Rotate the  AMS  knob to display “Iop.Write”, 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  AMS  knob.
To select the digit : Press the  AMS  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 be-
come “Iop Write”.

Display Procedure :
1. Rotate the  AMS  knob to display “Iop.Read”.
2. “@@.@/##.#” is displayed and the recorded contents are dis-

played.
@@.@ indicates the Iop value labeled on the pick-up.
##.# indicates the Iop value after adjustment

3. To end, press the  AMS  button or  MENU/NO  button to display

“Iop Read”.

Save the temperature data at that time in the non-volatile memory
as 25 ˚C reference data.
Note :
1. Usually, do not perform this adjustment.
2. Perform this adjustment in an ambient temperature of 22 ˚C to

28 ˚C. Perform it immediately after the power is turned on when
the internal temperature of the unit is the same as the ambient
temperature of 22 ˚C to 28 ˚C.

3. When D101 has been replaced, perform this adjustment after

the temperature of this part has become the ambient tempera-
ture.

Adjusting Procedure :
1. Rotate the  AMS  knob and display “TEMP ADJUST”.
2. Press the  YES  button and select the “TEMP ADJUST” mode.
3. “TEMP = 

[OK]” and the current temperature data will be

displayed.

4. To save the data, press the  YES  button.

When not saving the data, press the  MENU/NO  button.

5. When the  YES  button is pressed, “TEMP = 

 SAVE” will be

displayed and turned back to “TEMP ADJUST” display then.
When the  MENU/NO  button is pressed, “TEMP ADJUST”
will be displayed immediatelly.

The “TEMP =  

” should be within “E0 - EF”, “F0 - FF”, “00 -

0F”,  “10 - 1F” and “20 - 2F”.

Check the Iop value of the optical pick-up before adjustments.
(Refer to 5-8. Recording and Displaying Iop Information.)

Adjusting Procedure :
1. Set the laser power meter on the objective lens of the optical

pick-up. (When it cannot be set properly, press the  m  button
or  M  button to move the optical pick-up.)
Connect the digital volt meter to CN105 pin 1 (I+3V) and
CN105 pin 2 (IOP).

2. Rotate the  AMS  knob and display “LDPWR ADJUST”.

(Laser power : For adjustment)

3. Press the  YES  button once and display “LD 0.9 mW $ 

”.

4. Rotate the  AMS  knob so that the reading of the laser power

meter becomes 0.85 to 0.91 mW. Press the  YES  button after
setting the range knob of the laser power meter, and save the
adjustment results. (“LD SAVE $ 

” will be displayed for a

moment.)

5. Then “LD 7.0 mW $ 

” will be displayed.

6. Rotate the  AMS  knob so that the reading of the laser power

meter becomes 6.9 to 7.1 mW, press the   YES   button and save
it.

Note : Do not perform the emission with 7.0 mW more than 15

seconds continuously.

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