Pioneer CDJ-100S Service-Handbuch - Seite 38
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CDJ-100S
QQ
3 7 63 1515 0
5. Focus Servo Loop Gain Adjustment
Test mode
=
FOCUS servo
=
SPDL servo
=
TRKG servo
WAH Key - ON
TEST DISC
PLAY
Disc: Center circumference
START
TP1
(CN201)
6
FOER
5
FOIN
4
VC
MOTHER BOARD ASSY
TE
L 13942296513
6. Tracking Servo Loop Gain Adjustment
Test mode
=
FOCUS servo
=
SPDL servo
=
TRKG servo
WAH Key - ON
TEST DISC
PLAY
Disc: Center circumference
START
TP1
(CN201)
2
TRER
www
3
TRIN
4
VC
.
MOTHER BOARD ASSY
38
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CLOSE
CLOSE
CLOSE
MOTHER BOARD ASSY
Player
39kΩ
100kΩ
0.0018µF
Low pass filter 2
CLOSE
CLOSE
CLOSE
MOTHER BOARD ASSY
Player
39kΩ
x
ao
100kΩ
u163
y
0.001µF
i
Low pass filter 1
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2 9
8
UNDER
VR101
Lissajous Waveform
Probe (10:1)
Probe (10:1)
Q Q
3
6 7
1 3
UNDER
VR102
Lissajous Waveform
Probe (10:1)
Probe (10:1)
.
9 4
2 8
6.2.4 Check and Adjustment
UPPER
JUST
Oscilloscope
X-Y Mode
X: 20mV/div
Y: 5mV/div
Low-frequency
oscillator
1.2kHz
1Vp-p
GND
1 5
0 5
8
2 9
9 4
UPPER
JUST
Oscilloscope
X-Y Mode
X: 50mV/div
Y: 5mV/div
Low-frequency
oscillator
1.4kHz
2Vp-p
m
co
GND
9 9
2 8
9 9