Pioneer DV-575A-S Service Manual page 63

5
QQ
DVD Error Rate Adjustment
2
3 7 63 1515 0
Notes:
• Use disc: GGV1025
• BER:Block Error Rate
START
• Play the DVD test disc
at inner track
• Display BER on the monitor
ESC
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
www
.
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CHP/TIM
Player
CHECK
Confirm that the error rate is
OK
under "5E-5".
Disc playback normally.
• The measurement of
block error rate
ESC CHP/TIM
x ao
y
i
http://www.xiaoyu163.com
6
8
Mechanism Assy
Adjust the radial adjustment
screw so that
BER becomes under "5E-5".
BER : under "5E-5"
BER : - - - -
Q Q
3 6 7 1 3
Monitor
ESC
u163
Service mode end
.
DV-575A-S
6
7
2 9 9 4 2 8
• Play the DVD test disc
at inner track
(around #30000)
Mechanism Assy
Fasten the radial
adjustment screw so that
BER becomes over "1E-3".
BER : over "1E-3"
• Unfasten the radial adjustment screw
by 90 degrees step till BER becomes
over "1E-3" again .
• Record the number of rotation (N1).
• Fasten the radial adjustment screw
till the number of rotation becomes
harf of N1.
ESC
Service mode end
1 5 0 5 8 2 9 9 4
• Play the DVD test disc
at outer track
(around #200000)
\ Service mode
Mechanism Assy
Fasten the tangential
adjustment screw so that
BER becomes over "1E-3".
BER : over "1E-3"
• Unfasten the tangential screw
by 90 degrees step till BER becomes
over "1E-3" again .
• Record the number of rotation (N1).
m
• Fasten the tangential adjustment screw
till the number of rotation becomes
co
harf of N1.
7
8
9 9
A
B
C
2 8 9 9
D
ESC CHP/TIM
E
F
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