Pioneer dv-79avi Service Manual page 79

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DVD Jitter Adjustment
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• Playback method of inner and outer address for the purpose is refererd to "6.4 TEST MODE".
• Jitter indication of the monitor is refererd to "7.1.3 TEST MODE SCREEN DISPLAY".
START
• Test mode
• Play the DVD test disc
at outer track
(around #200000)
TE
L 13942296513
Turn the POWER OFF in
case of NG once, and
perform the adjustment
once again.
If error rate is OK,
locks a root of
tangential and radial
adjustment screws with
the Screw tight.
Screw tight: GYL1001
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Player
CHECK
Confirm the error rate that is
displayed "OK"
NG
(Example ERROR RATE: 6.6oe - 6 OK )
Disc playback normally.
• The measurement of block error rate
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Mechanism Assy
Adjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
J : Min
J : - - - -
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Monitor
ESC 5
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DV-79AVi
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Use disc: GGV1025
• Play the DVD test disc
at inner track
(around #30000)
Mechanism Assy
Adjust the Radial
Adjustment Screw so that
jitter becomes minimum.
J : Min
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• Play the DVD test disc
at outer track
(around #200000)
Mechanism Assy
Readjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
J : Min
ESC
m
Test mode end
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