Aiwa XR-MDK109 Service Manual page 40

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3-4. Checking the Playback Error Rate (PIT disc)
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1) Insert the test disc TGYS-1.
2) Move the pickup to the center track using the
3) Press the "MD MODE" button to display "SELECT PIT".
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4) Press the button to display "FOCUS ON!".
5) Press the "ENTER" button to display "ALL SV ON", and press the "DISPLAY" button to confirm that the address display
advances regularly.
6) Press the "DISPLAY" button again to display the playback error rate, and confirm that the value shown by the asterisks
(****) of "Er****:####" is "0030" or less.
7) After adjustment, press the 9 button to return the display to "ALL SV OFF".
3-5. Checking the Record/Playback Error Rate (MO disc)
1) Insert the test disc MDW-60.
2) Move the pickup to the center track using the
3) Press the "CD" button; OWH starts moving and recording from the 600th cluster.
4) After recording for about 15 seconds, press the 9 button to display "ALL SV OFF"
5) Press the "AUX" button to change the mode to "ALL SV ON", and press the "DISPLAY" button at the 600th cluster. Then,
confirm that the value shown by the asterisks (****) of "Er****:####" is "0020" or less.
6) After adjustment, press the 9 button to return the display to "ALL SV OFF".
3-6. UTOC Erase
Perform the following procedure if the recorded disc needs to be erased.
1) Insert the test disc of the UTOC to be erased.
2) Move the pickup to the center track using the
3) Press the "MD MODE" button to display "SELECT GRV".
4) Press the "MD REC" button to display "REC Analog".
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5) Press the button to display "FOCUS ON!".
6) Press the "ENTER" button to display "ALL SV ON".
7) Press the "TAPE REC/REC MUTE" button to display "UTOC ERASE". The UTOC is erased.
8) After the UTOC is erased, "ALL SV OFF" appears on the display.
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