Pioneer XV-DV434 Service Manual page 66

1
QQ
3 7 63 1515 0
DVD Error Rate Adjustment
2
A
Notes:
• Use disc: GGV1025
START
• Play the DVD test disc
at inner track
• Display ERROR RATE
on the monitor
ESC CHP/TIM
B
C
1E-3
BER
5E-4
Anticlock wise
Rotation of Radial screw
and Tangential screw
C
TE
L 13942296513
D 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
E
Disc playback normally.
• The measurement of
block error rate
www
F
66
1
http://www.xiaoyu163.com
2
Traverse Mechanism
Assy-S
Adjust the radial adjustment
screw so that
ERROR RATE becomes
around "5E-4".
ERROR RATE : "5E-4"
B
A A
Best point
Clock wise
Player
CHECK
In this check, the error rate
OK
that is less than "5E-5"is
better.
ESC CHP/TIM
x ao
y
. i
2
http://www.xiaoyu163.com
3
8
A
• Unfasten the radial adjustment screw
• Record the number of rotation (N1).
• Fasten the radial adjustment screw
ERROR RATE: - - - -
Q Q
3 6 7
Service mode end
• Play the DVD test disc
Monitor
• Unfasten the tangential screw
by 90 degrees step till ERROR RATE
becomes around "1E-3" again .
• Record the number of rotation (N1).
ESC
u163
• Fasten the tangential adjustment screw
till the number of rotation becomes
Service mode end
harf of N1.
XV-DV333
3
4
2 9 9 4
• Play the DVD test disc
at inner track
(around #30000)
Traverse Mechanism
Assy-S
Fasten the radial
adjustment screw so that
ERROR RATE becomes
around "1E-3".
ERROR RATE : "1E-3"
by 90 degrees step till ERROR RATE
becomes around "1E-3" again .
(memorizing how much the screw was rotated.)
till the number of rotation becomes
harf of N1.
Best Radial point
ESC
1 3 1 5 0 5 8 2 9
at outer track
(around #200000)
\ Service mode
ESC
Traverse Mechanism
Assy-S
Fasten the tangential
adjustment screw so that
ERROR RATE becomes
around "1E-3".
ERROR RATE : "1E-3"
m
co
.
Best tangential point
4
2 8
9 9
B
C
9 4 2 8 9 9
CHP/TIM
B
C