Yamaha GX-900 Service Manual page 33

2. AUTO adjustment mode
Step Setting method
1 Set the TEST mode to STOP.
2 Load a disc.
Press the r(MD) button once.
3 Press the REC/PAUSE(MD) button
once.
Adjusted values are output.
Adjustment is completed.
4 When adjustment is OK, press the
REC/PAUSE(MD) button.
5 Press the PROG button.(REMOCON)
Press the CHARACTER button.
6 When adjustment is NG, press the
CHARACTER button.
8. TEST-PLAY mode
(Use this mode to check that the playback function is provided at the specified address.)
Step Setting method
1 Load a disc.
2 Press the MD EDIT button.
3 Press the PROG button.(REMOCON)
Press the REC/PAUSE(MD) button.
4 Continuous reproduction (bit section)
Continuous reproduction (group section)
5 Press the PROG button.(REMOCON)
Continuous reproduction (group section)
6 Press the CHARACTER button.
• Every time the MD EDIT button is pressed in the address setting mode, the address changes in the order of 0050-> 03C0 -> 0700 -> 08A0
-> 0050 -> —
• Pressing the r(MD) button in the TEST-PLAY menu changes to the AUTO pre-adjustment menu.
Remark
No disc is loaded.
AUTO pre-adjustment menu
AUTO adjustment menu
Automatic pre-adjustment is started after sliding to the innermost
track.
" *** " changes in the following order when a high reflecting disc
(disc for reproduction) is used.
PEG -> HAG
" *** " changes in the following order when a low reflecting disc
(disc for recording) is used.
PEG -> LAG -> GCG -> GEG -> LAG
Proceed to Step 4 when adjustment is OK.
Proceed to Step 5 when adjustment is NG.
Continuous reproduction (bit section)
(Address + C1 error display)
Continuous reproduction (group section)
(Address + C1 error display)
Continuous reproduction (group section)
(Address + ADIP error display)
Display returns to the AUTO adjustment menu display.
There is an abnormality at the adjusted point such as PEG.
Refer to "Troubleshooting". (page 20)
Note) *** : Adjustment name, XXXX: Address, YYYY: Measured value
Remark
AUTO pre-adjustment menu
TEST-PLAY menu
ADDRESS setting (The initial value of the target address is displayed.)
Set the search output to "H" while searching and back to "L" when
continuous reproduction is started.
(Address + C1 error display)
(Address + C1 error display)
(Address + ADIP error display)
TEST-PLAY menu
GX-900
Display
[ EJECT ]
[ LOADING ]
[ _ AUT _ YOBI _ ]
[ AUTO _ AJST _ ]
[ *** : _ _ _ _ _ _ ]
[ _ COMPLETE _ ]
[ Can't _ ADJ. ]
[ s XXXX c YYYY ]
[ a XXXX c YYYY ]
[ a XXXX a YYYY ]
[ AUTO _ AJST _ ]
[ Can't _ ADJ. ]
Display
[ _ AUT _ YOBI _ ]
[ TEST _ PLAY _ ]
[ ADRES _ 0050 ]
[ s XXXX c YYYY ]
[ a XXXX c YYYY ]
[ a XXXX a YYYY ]
[ TEST _ PLAY _ ]
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