Pioneer PD-S507 Manuale di servizio - Pagina 32
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- 1. Table of Contents
- 2. Safety Information
- 3. Exploded Views and Parts List
- 4. Front Panel Section
- 5. Schematic Diagram
- 6. Pcb Connection Diagram
- 7. Pcb Parts List
- 8. Main Board Assy
- 9. Adjustment
- 10. General Information
- 10. Display
- 10. Block Diagram
- 11. Panel Facilities and Specifications
- 12. Specifications
PD-S507
7. RF Level Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
1 1
RF
4
VC
MAIN BOARD ASSY
8. Focus Servo Loop Gain Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
6
FE
5
FI
4
VC
MAIN BOARD ASSY
32
=
CLOSE
=
CLOSE
=
CLOSE
MAIN BOARD ASSY
Player
=
CLOSE
=
CLOSE
=
CLOSE
MAIN BOARD ASSY
Player
100kΩ
Low pass filter 2
VR153
Make adjustment if
the value exceeds
the specified range.
Prove (10:1)
GND
UNDER
VR152
Prove (10:1)
Prove (10:1)
56kΩ
0.001µF
Check
1.2VP-P
±0.1V
Oscilloscope
AC Mode
V: 50mV/div
H: 10mSec/div
UPPER
JUST
Lissajous Waveform
Oscilloscope
X-Y Mode
X: 20mV/div
Y: 5mV/div
Low-frequency
oscillator
1.2kHz
1Vp-p
GND