Pioneer PD-F1007 Service Manual - Page 38

Focus Offset Adjustment, Grating Adjustment

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PD-F1007 2. Focus Offset Adjustment Test mode None disc VR154 MAIN BOARD ASSY START TP1 (CN201) FE 6 VC 4 MAIN BOARD ASSY Player Prove (10:1) GND DC voltage 0±50mV Oscilloscope DC Mode V: 5mV/div H: 10mSec/div 3. Grating Adjustment Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = OPEN TEST DISC Innermost circumference (1 TRK) PLAY Turn counterclockwise from null. PICKUP Locate null. Counterclockwise, Maximum amplitude. START TP1 (CN201) TE 2 VC 4 MAIN BOARD ASSY GND Player Low pass filter 1 39kΩ 0.001µF Prove (10:1) Oscilloscope DC Mode V: 10mV/div H: 5mSec/div 38

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PD-F1007
38
4
2
6
2. Focus Offset Adjustment
Test mode
None disc
VR154
MAIN BOARD ASSY
DC voltage
0
±
50mV
Oscilloscope
DC Mode
V: 5mV/div
H: 10mSec/div
Prove (10:1)
GND
START
TP1
(CN201)
Player
3. Grating Adjustment
Oscilloscope
DC Mode
V: 10mV/div
H: 5mSec/div
Player
FE
VC
START
TP1
(CN201)
TE
VC
Locate null.
Counterclockwise, Maximum amplitude.
39k
Ω
0.001
μ
F
Prove (10:1)
GND
Low pass filter
1
MAIN BOARD ASSY
MAIN BOARD ASSY
4
Test mode
SPDL servo
FOCUS servo
TRKG servo
=
=
=
CLOSE
CLOSE
OPEN
TEST DISC
Innermost
circumference
(1 TRK)
PLAY
Turn counterclockwise
from null.
PICKUP