Pioneer DV-353-K Service Manual - Page 52

DVD Jitter Adjustment

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2 DVD Jitter Adjustment • 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 "7.1.1 TEST MODE (Display Specification of the Test Mode)". Use disc: GGV1025 START • Test mode • Play the DVD test disc at outer track (around #200000) Mechanism Assy Adjust the Tangential Adjustment Screw so that jitter becomes minimum. • Play the DVD test disc at inner track (around #30000) J : Min Mechanism Assy Adjust the Radial Adjustment Screw so that jitter becomes minimum. J : Min Player J: ---Monitor • Play the DVD test disc at outer track (around #200000) Turn the POWER OFF in case of NG once, and perform the adjustment once again. CHECK Confirm the error rate that is NG displayed "OK" (Example ERROR RATE: 6.6oe - 6 OK ) OK If error rate is OK, locks a root of tangential and radial adjustment screws with the Screw tight, and go to step !. Disc playback normally. • The measurement of block error rate ESC 5 Screw tight: GYL1001 52 DV-353-K Mechanism Assy Readjust the Tangential Adjustment Screw so that jitter becomes minimum. J : Min ESC Test mode end

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52
DV-353-K
Player
Monitor
•
Test mode
•
Play the DVD test disc
at outer track
(around #200000)
•
Play the DVD test disc
at inner track
(around #30000)
•
Play the DVD test disc
at outer track
(around #200000)
Mechanism Assy
Adjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
Mechanism Assy
Readjust the Tangential
Adjustment Screw so that
jitter becomes minimum.
Mechanism Assy
Adjust the Radial
Adjustment Screw so that
jitter becomes minimum.
Use disc: GGV1025
START
DVD Jitter Adjustment
2
J :
- - - -
J :
Min
J :
Min
Test mode end
J :
Min
ESC
Disc playback normally.
•
The measurement of block error rate
If error rate is OK,
locks a root of
tangential and radial
adjustment screws with
the Screw tight, and
go to step
!
.
Screw tight: GYL1001
Turn the POWER OFF in
case of NG once, and
perform the adjustment
once again.
Confirm the error rate that is
displayed "OK"
(Example
ERROR RATE: 6.6oe - 6
OK )
5
ESC
CHECK
NG
OK
•
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 "7.1.1 TEST MODE (Display Specification of the Test Mode)".