Pioneer PD-M427 Panduan Servis - Halaman 25

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Pioneer PD-M427 Panduan Servis
5. RF Level Adjustment
Test mode
=
SPDL servo
CLOSE
=
FOCUS servo
CLOSE
=
TRKG servo
CLOSE
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
1 1
RF
4
VC
MOTHER BOARD ASSY
6. 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
VR153
MOTHER BOARD ASSY
Player
Prove (10:1)
GND
VR156
MOTHER BOARD ASSY
Player
PD-M427, PD-M407
1.2VP-P
±0.1V
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)
Oscilloscope
AC Mode
V: 50mV/div
H: 10mSec/div
MAX
25