Aiwa XR-MD510, Service Manual

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FOCUS GAIN
TRACKING GAIN SLED GAIN
5) Press the DISPLAY once again.
Confirm that the values of “Gf**t##s
33
” are within the range shown below. (hexadecimal)
f “**” ...................... 20 to 40
t “##” ...................... 15 to 35
s “
33
” .................... 15 to 35
6) After adjustment, press the STOP button to return the display to “ALL SV OFF”.
3-3. Adjusting the PIT Disk
1) Load the TGYS-1.
2) Press the MD MODE button to display “SELECT PIT”.
3) Press the MD function button to display “AUTO ADJ”. After adjustment, “DONE” is displayed. (If the adjustment failed,
“FAILED” appears.)
4) Then, press the STOP button to return the display to “ALL SV OFF”.
3-4. IVR, EFB, Focus/ Tracking/ Sled Gain Check of PIT Disk
1) Move the pickup to the center of the disk using the B.SKIP button and F.SKIP button.
2) Press the PLAY button to display “FOCUS ON!”.
3) Press the ENTER button to display “ALL SV ON”.
4) Press the STOP button and press the DISPLAY button twice.
Confirm that the values of “IV$**:EF$
⁄⁄ ” are within the range shown below. (hexadecimal)
IV$ “**” ................. 13 to 19
EF$ “
⁄⁄ ” .............. 09 to 12
5) Press the DISPLAY once again.
Confirm that the values of “Gf**t##s
33
” are within the range shown below. (hexadecimal)
f “**” ...................... 2A to 45
t “##” ...................... 15 to 40
s “
33
” .................... 15 to 40
6) After adjustment, press the STOP button to return the display to “ALL SV OFF”.
4. Playback Error Rate Check (PIT disk)
• Test point: Check the test point on the display.
• Test disk: TSYS-1 or equivalent
1) Load the TGYS-1.
2) Move the pickup to the center of the disk using the B.SKIP button and F.SKIP button.
3) Press the MD MODE button to display “SELECT PIT”.
4) Press the PLAY button to display “FOCUS ON!”.
5) Press the ENTER button to display “ALL SV ON”.
6) Press the DISPLAY button once to confirm that the address indication is stable and count starts.
7) Press the DISPLAY button once again to display the playback error rate.
Confirm that the numbers of “Er****:***** ” (underlined portion) is “Er0030”or lower.
8) After checking, press the STOP button to return the display to “ALL SV OFF”.
5. Record/Playback Error Rate Check (MO disk)
• Test point: Check the test point on the display.
• Test disk: MDW-74
1) Load the MDW-74.
2) Move the pickup to the center of the disk using the B.SKIP button and F.SKIP button.
3) Press the CD function button. Recording starts automatically in cluster 600.
4) After recording for about 15 seconds, press the STOP button.
5) Press the AUX/D-IN function button to move the pickup to around 600 cluster and enter the “ALL SV ON” state (the display is in
the sate of the address indication), and press the DISPLAY button in or after cluster 600.
Then confirm that the values of “Er****:****” (underlined portion) is “Er0030” or lower.
6) After adjustment, press the STOP button to return the display to “ALL SV OFF”.
IVR
EFB
FOCUS GAIN TRACKING GAIN SLED GAIN