Pioneer PD-M407 서비스 매뉴얼 - 페이지 28
{카테고리_이름} Pioneer PD-M407에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Pioneer PD-M407 32 페이지. Multi compact disc player
Pioneer PD-M407에 대해서도 마찬가지입니다: 사용 설명서 (40 페이지), 사용 설명서 (28 페이지), 서비스 매뉴얼 (32 페이지), 사용 설명서 (40 페이지)
페이지 인쇄
PD-M427, PD-M407
QQ
3 7 63 1515 0
11. Focus Best Adjustment
Adjust this point only if adjustment was made in item 10.
Test mode
=
SPDL servo
=
FOCUS servo
=
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
(CN201)
FE
RF
VC
TE
L 13942296513
MOTHER BOARD ASSY
12. Tracking Servo Loop Gain Adjustment
Test mode
SPDL servo
FOCUS servo
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
2
TE
www
3
TI
4
VC
.
MOTHER BOARD ASSY
28
http://www.xiaoyu163.com
CLOSE
CLOSE
CLOSE
MOTHER BOARD ASSY
Player
TP1
6
1
4
=
CLOSE
=
CLOSE
=
CLOSE
MOTHER BOARD ASSY
Player
100kΩ
x
ao
y
i
http://www.xiaoyu163.com
8
VR156
Adjust the RF level to maximum, with
the focus error voltage within ±150mV.
Prove (10:1)
Prove (10:1)
Q Q
3
6 7
1 3
UNDER
VR151
Prove (10:1)
Prove (10:1)
u163
.
2 9
9 4
2 8
MAX
Oscilloscope
DC Mode
CH1: 5mV/div
CH2: 20mV/div
H: 200ns/div
1 5
0 5
8
2 9
9 4
UPPER
JUST
Lissajous Waveform
Oscilloscope
X-Y Mode
X: 20mV/div
Y: 10mV/div
Low-frequency
oscillator
1.2kHz
1Vp-p
m
co
GND
9 9
2 8
9 9