Pioneer PD-F1007 Service Manual - Page 39

Tracking Error Barance Adjustment, Pickup, Radial, Tangential Direction Tilt Adjustment

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

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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.