Pioneer PD-F958 Service Manual page 32

PD-F958, PD-F908
QQ
3 7 63 1515 0
5. RF Level Adjustment
Test mode
=
SPDL servo
=
FOCUS servo
=
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
(CN201)
RF
VC
MAIN BOARD ASSY
TE
L 13942296513
6. Focus Best Adjustment
Test mode
=
SPDL servo
=
FOCUS servo
=
TRKG servo
Innermost
TEST DISC
circumference
(1 TRK)
PLAY
START
TP1
(CN201)
6
FE
1
RF
www
4
VC
MAIN BOARD ASSY
.
32
http://www.xiaoyu163.com
CLOSE
CLOSE
CLOSE
MAIN BOARD ASSY
Player
TP1
1 1
4
CLOSE
CLOSE
CLOSE
VR156
MAIN BOARD ASSY
Player
x ao
y
i
http://www.xiaoyu163.com
8
VR153
Prove (10:1)
GND
Q Q
3 6 7 1 3
Adjust the RF level to maximum, with the
focus error voltage within ±150mV.
Prove(10:1)
Prove(10:1)
u163
.
2 9 9 4 2 8
1.2VP-P
±0.1V
Oscilloscope
AC Mode
V: 50mV/div
H: 10mSec/div
1 5 0 5 8 2 9 9 4
MAX
Oscilloscope
DC Mode
CH1: 5mV/div
CH2: 20mV/div
H: 200ns/div
m
co
9 9
2 8 9 9