Onkyo DR-S2.2 Service Manual page 20

ADJUSTMENT PROCEDURES-9
ADJUSTMENT OF DVD MECHANISM-6
2
DVD Jitter Adjustment
Playback method of inner and outer address for the purpose is refererd to "5. TEST MODE".
Use disc: GGV1025
Test mode
Play the DVD test disc at outer track
(around #200000)
Mechanism Assy
Adjust the Tangential Adjustment Screw
so that jitter becomes minimum.
Test mode
Play the DVD test disc
(around #30000)
Mechanism Assy
Adjust the Radial Adjustment Screw so that
jitter becomes minimum.
Test mode
Play the DVD test disc at outer track
(around #200000)
Mechanism Assy
Adjust the Tangential Adjustment Screw
so that jitter becomes minimum.
J4 : Min
at innerouter track
J4 : Min
J4 : Min
Test mode end
Page 20
Monitor
J4 :
J4 : - - - -
Tangential
adjustment
screw
Front side
If error rate is OK,
locks a root of
tangential and radial
adjustment screws with
the Screw tight, and
go to step 3
Screw tight : GYL1001
OK
Check
Confirm the error rate that is
displayed "OK"
(Example ER (av): 2.5e - 5-*OK )
Disc playback normally.
• The measurement of block error rate
DR-S2.2
Radial
adjustment
screw
Turn the POWER OFF in
case of NG once, and
perform the adjustment
once again.
NG
5