Pioneer PD-F906 Service Manual page 25

6.3 Check and Adjustment (f#32.
a
=)
1. Focus Offset Adjustment
(F4#—AAAD ty hie)
@ Test mode
S vri54
MAIN BOARD ASSY
@ None disc
'
MAIN BOARD ASSY
2. Grating Adjustment
(FL-F 14> THR)
Turn counterclockwise
from null.
(Robo & art 21
"Blt, )
@ Test mode
FOCUS servo — CLOSE
SPDL servo - CLOSE
TRKG servo -* OPEN
Innermost
circumference
(1 TAK)
PLAY
PICKUP
C3
Y
" TEST DIS Ga
=
START
Player Low pass filte
r
TP1
(CN201)
TE !
I |
vc |
MAIN BOARD ASSY
PD-F906
Of Oscilloscope
DC Mode
V: 5mVi/div
H: 10mSec/div
Locate null.
(XLERTF, )
—e Maximum amplitude
(ReSHEL. dR)
CH1 CcH2
oo
O
Oscilloscope
DC Mode
V: 50mV/div
H: SmSec/div
2
25