Pioneer PD-S507 Service Manual page 30

PD-S507
3. Tracking Error Barance Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
2
TE
4
VC
MAIN 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
MAIN BOARD ASSY
30
=
CLOSE
=
CLOSE
=
OPEN
MAIN 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
1
2
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