PD-F1007
39
1
4
2
4. Tracking Error Barance Adjustment
Probe (10:1)
VR155
A=B
Oscilloscope
DC Mode
V: 10mV/div
H: 5mSec/div
START
TP1
(CN201)
Player
TE
VC
39k
Ω
0.001
µ
F
Low pass filter 1
Test mode
SPDL servo
FOCUS servo
TRKG servo
=
=
=
CLOSE
CLOSE
OPEN
TEST DISC
PLAY
Innermost
circumference
(1 TRK)
VC
A
B
GND
GND
Player
TP1
(CN201)
RF
VC
START
Probe (10:1)
Oscilloscope
AC Mode
V: 20mV/div
H: 200nSec/div
NG
OK (Smooth)
Eye pattern
5. Pickup
1
Radial/
2
Tangential Direction Tilt Adjustment
MAIN BOARD ASSY
MAIN BOARD ASSY
MAIN BOARD ASSY
TEST DISC
PLAY
Test mode
SPDL servo
FOCUS servo
TRKG servo
=
=
=
CLOSE
CLOSE
CLOSE
4
Remove lock tight.
TEST DISC
1
2
2
1
Position where the screw is visible
through the adjustment hole of the
float base after moving toward the
outer peripheral.