5-14. ERROR RATE CHECK

5-14-1. CD Error Rate Check

Checking Procedure :

1.Load a check disc (MD) TDYS-1.

2.Rotate the AMS knob and display “CPLAY1 MODE”.

3.Press the YES button twice and display “CPLAY1 MID”.

4.The display changes to “C1 = AD = ”.

5.Check that the C1 error rate is below 20.

6.Press the MENU/NO button, stop playback, press the A but- ton, and remove the test disc.

5-14-2. MO Error Rate Check

Checking Procedure :

1.Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2.Rotate the AMS knob and display “CPLAY1 MODE”.

3.Press the YES button and display “CPLAY1 MID”.

4.The display changes to “C1 = AD = ”.

5.If the C1 error rate is below 20, check that ADER is 00.

6.Press the MENU/NO button, stop playback, press the A but- ton, and remove the test disc.

5-15. FOCUS BIAS CHECK

Change the focus bias and check the focus tolerance amount.

Checking Procedure :

1.Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2.Rotate the AMS knob and display “CPLAY1 MODE”.

3.Press the YES button twice and display “CPLAY1 MID”.

4. Press the

MENU/NO

button when “C1 =

AD = ” is

displayed.

 

5.Rotate the AMS knob and display “FBIAS CHECK”.

6.Press the YES button and display “ / c = ”.

The first four digits indicate the C1 error rate, the two digits after [/] indicate ADR, and the 2 digits after [c =] indicate the focus bias value.

Check that the C1 error is below 20 and ADER is below 2.

7.Press the YES button and display “ / b = ”. Check that the C1 error is below 100 and ADER is below 2.

8.Press the YES button and display “ / a = ”. Check that the C1 error is below 100 and ADER is below 2

9.Press the MENU/NO button, next press the A button, and remove the continuously recorded disc.

Note 1 : If the C1 error and ADER are above other than the speci- fied value at points a (step 8. in the above) or b (step 7. in the above), the focus bias adjustment may not have been carried out properly. Adjust perform the beginning again.

5-16. AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT

Be sure to perform this adjustment when the Optical pick-up is re- placed.

If the adjustment results becomes “Adjust NG!”, the Optical pick- up may be faulty or the servo system circuits may be abnormal.

5-16-1. CD Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1.Insert the check disc (MD) TDYS-1.

2.Rotate the AMS knob to display “AG Set (CD)”.

3.When the YES button is pressed, the adjustment will be performed automatically.

“Complete!!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the display changes to “AG Set (CD)”.

4.Press the A button to remove the disc.

5-16-2. MO Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1.Insert the reference disc (MDW-74/GA-1) for recording.

2.Rotate the AMS knob to display “AG Set (MO)”.

3.When the YES button is pressed, the adjustment will be performed automatically.

“Complete!!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the display changes to “AG Set (MO)”.

4.Press the A button to remove the disc.

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Sony KMS-2608/J1N, MDM-7A, NEW specifications Error Rate Check, Focus Bias Check, Auto Gain Control Output Level Adjustment
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KMS-2608/J1N, MDM-7A, NEW specifications

Sony has long been a leader in the realm of electronic innovation, and the introduction of the NEW MDM-7A and KMS-2608/J1N models further solidifies this position. These devices are a testament to Sony's commitment to delivering cutting-edge technology that enhances user experience across various applications.

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In conclusion, the Sony MDM-7A and KMS-2608/J1N embody the future of audio technology, combining superior sound performance with user-friendly features. These models are not only designed to meet current industry standards but are also forward-thinking, making them suitable for a wide array of applications, from studio recordings to live events. As Sony continues to innovate, these devices are sure to play a significant role in shaping the audio landscape for years to come.
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