Service Jig And Tools - Aiwa XR-MD201 Service Manual

When using the PIT disc for adjustment:
1) Insert the test disc TGYS-1.
Press the 9 button to show "ALL SV OFF" on display.
2)
3) When the "MD function" button is pressed, "AUTO ADJ" is shown on display. When adjustment is completed, "DONE" is
displayed. (If "FAILED" is displayed, it shows that the adjustment has failed and is not performed.)
After the adjustment is completed, press the 9 button to return to the "ALL SV OFF" state.
4)
Checking Method of IVR, EFB, Focus/Tracking/Sled Gain
Perform the same operation as that of the "When using the MO disc for adjustment" and confirm that the values on the display are
within the following ranges.
"IVR" ..................................... 13 to 17
"EFB" .................................... 09 to 12
"Focus gain" .......................... 2A to 45
"Tracking gain" ..................... 20 to 40
"Sled gain" ............................. 20 to 40
5. Checking Focus Servo and Error Rate (PIT Disc)
1) Insert the test disc TGYS-1.
Move the optical pickup to the center track or its around of a disc using the 6 and the 5 buttons.
2)
3) Press the "MODE" button to show "SELECT PIT" on the display.
Press the 2 button to show "FOCUS ON!" on the display..
4)
5) Press the "MD MARK" (SHIFT+10) button to show "ALL SV ON" on the display. Then press the "DISPLAY" (SHIFT+4)
button once to check that the address display advances with regularity.
6) Press the "DISPLAY" (SHIFT+4) button again to show the playback error rate on display and check that the value shown by the
asterisks (****) of "Er****:000" is "0030" or less.
After the adjustment is completed, press the 9 button to return to the "ALL SV OFF" state.
7)
6. Checking Record/Playback Error Rate (MO Disc)
1) Insert the test disc MDW-60.
Move the optical pickup to the center track or its around of a disc using the 6 and the 5 buttons.
2)
3) Press the "CD function" button to start recording from 600 cluster.
After about 15 seconds of recording, press the 9 button to show "ALL SV OFF" on display.
4)
5) Press the "AUX/D-IN/TAPE" button to show "ADR****c##s". When the address indication on display shows the record start
position, press the "DISPLAY" button (SHIFT+4) to show "Er⁄⁄⁄⁄:
under this setup.
After adjustment, press the 9 button to show "ALL SV OFF" on display.
6)

SERVICE JIG AND TOOLS

Use the following jigs when opening the C.B boards.
NAME
CD JIG, P-CD BY TORIKOSHI
FF-CABLE, 16P 1.0 250mm
MD FFC, 8P-1.0P
FFC, 14P-1.0P
PART NO
SV-J00-018-010
87-CE1-640-010
SV-J00-043-010
SV-J00-044-010
64
". Confirm that the value of ⁄⁄⁄⁄ is 0020 or less