Pioneer PD-M407 Panduan Servis - Halaman 24

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Halaman Cetak
Pioneer PD-M407 Panduan Servis
PD-M427, PD-M407
3. Tracking Error Balance Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
2
TE
4
VC
MOTHER BOARD ASSY
4. Pickup 1Radial 2Tangential Direction Tilt Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
TEST DISC
PLAY
Position where the screw is
visible through the adjustment
hole of the float base after
moving
toward
peripheral.
START
TP1
(CN201)
RF
VC
MOTHER BOARD ASSY
24
=
CLOSE
=
CLOSE
=
OPEN
MOTHER BOARD ASSY
Player
Low pass filter 1
=
CLOSE
1
=
CLOSE
=
CLOSE
TEST DISC
Remove lock tight.
the
outer
1
4
VR155
Probe (10:1)
39kΩ
0.001µF
2
2
1
Player
Probe (10:1)
GND
A=B
A
VC
B
Oscilloscope
DC Mode
V: 10mV/div
H: 5mSec/div
NG
Eye pattern
OK (Smooth)
Oscilloscope
AC Mode
V: 20mV/div
H: 200nSec/div