Pioneer PD-M407 Manuale di manutenzione - Pagina 27
Sfoglia online o scarica il pdf Manuale di manutenzione per Amplificatore Pioneer PD-M407. Pioneer PD-M407 32. Multi compact disc player
Anche per Pioneer PD-M407: Manuale di istruzioni per l'uso (40 pagine), Manuale di istruzioni per l'uso (28 pagine), Manuale di servizio (32 pagine), Manuale di istruzioni per l'uso (40 pagine)
9. Focus Best Adjustment
Test mode
=
SPDL servo
CLOSE
=
FOCUS servo
CLOSE
=
TRKG servo
CLOSE
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
6
FE
1
RF
4
VC
MOTHER BOARD ASSY
10. Focus Servo Loop Gain Adjustment
Test mode
=
SPDL servo
CLOSE
=
FOCUS servo
CLOSE
=
TRKG servo
CLOSE
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
6
FE
5
FI
4
VC
MOTHER BOARD ASSY
VR153
MOTHER BOARD ASSY
Player
VR152
MOTHER BOARD ASSY
Readjust if
adjustment
is incorrect.
Player
56kΩ
100kΩ
0.001µF
Low pass filter 2
PD-M427, PD-M407
Adjust the RF level to maximum, with
the focus error voltage within ±150mV.
Oscilloscope
DC Mode
CH1: 5mV/div
CH2: 20mV/div
H: 200ns/div
Prove (10:1)
Prove (10:1)
Check
UNDER
UPPER
JUST
Lissajous Waveform
Oscilloscope
X-Y Mode
X: 20mV/div
Y: 5mV/div
Low-frequency
Prove (10:1)
oscillator
1.2kHz
1Vp-p
Prove (10:1)
GND
MAX
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