Sony CDP-400 - Mechanism Adjustments; Press PLAY

CDP-400/501/SO1ES/6108S |
Optical Pick-Up Block Assembly
Block (KSS-100A). (Page 6}
Refer to the Note on Handling the Optical Pick-up
® After mounting the optical pick-up block
on the OP base, slide the block in the
direction of the arrow 2—3 times.
Secure the optical pick-up block, and
confirm that the OP base moves lightly
conductive sheet
Use to wrap optical Pick-up)
block repair parts.
optical pick-up block
(KSS- 100A}
rack holder
slide shaft (1) slide shaft (2)
@ insert the shaft to the center by
holding 5 mm of the end of the shaft.
When replacing the optical pick-up block, check
and adjust the items below in order.
1. RF Offset Adjustment (page 42)
to
. Tracking Offset Adjustment (page 42)
. Focus Offset Adjustment (page 43)
. Tracking Balance Adjustment (page 44)
vA hw
. Optical Pick-up Block Position Adtustment (page
37)
After performing the above, confirm focus/
tracking gain.
slide shaft retainer (L.
retaining the cut-out
portion of the shaft}
by its own weight.
P26x5
eo slide shaft retainer (R)}
a7 fretaining the cutout
Portion of the shaft)
Put the optical pick-up
block on the OP base
with the both edges of
the shaft,
P26x5
| S—— @ slide shaft retainer
| flower) {1}
3
@P26x5
slide shaft
5 | iso i it
@ slide shaft retainer
=>
slide
shaft
(2)
|
{lower}
(2)
op ee:
@P26x5
® simit switch
|
'
e903) 7h ® optical pick-up block sled motor
section
ZAIN (Refer to Note on assembly under
the item on removal of optical
pick-up block sled motor, page 35.)
@P26x5
— Checking Focus/Tracking Gain —
Play a disc (YEDS-1) and check the following
items.
1. No skipping in the sound.
2. Mechanical noise when the 2-axis device operates
should be minimum.
3. The beginning of the desired selection is reached
when the (Ke¢ , PPI) buttons are pressed. The
time for reaching the beginning of a selection
should be about 2 seconds.
4. Turn the anti-shock switch off, and apply light
shocks to the sides and top of the set. At this time
the display should change correctly and no skip-
ping should occur. Then when a stronger shock is
applied, the display may jump and sound may
skip, but operation should subsequently be
normal. j
SECTION 3
ADJUSTMENTS
3-1. MECHANISM ADJUSTMENTS
| CDP-400/501 /5O1ES/610ES
Optical Pick-up Position Adjustment
This
adjustment
determines
the
position
when
the
optical
block
is
at
its
innermost
position
on
the
disc.
It
is
done
so
that
the
optical
block
can
read
the
infor-
mation
recorded
in
the
TOC
(Table
of
Contents)
on
the
disc
lead-in
track.
$924
limit switch
Display increases when
turned counterclockwise.
{Optical block moves
toward the disc outer
circumference.)
i
Display decreasés when turned
clockwise. {Optical block maves
toward the disc inner circumference.)
Perform this adjustment after adjusting so that
clearance @ is approximately 2.6 mm when the ad-
justment screw is removed.
| 1. Turn POWER switch on and insert disc (YEDS-1).
2. Press ® PLAY button and adjust the adjustment
screw so that the display window reading ts as
shown in Figure A.
t The timer counter decreases approximately 10-20
seconds with one counterclockwise tum of the
adjustment screw.
When turning the adjustment screw, press the
OPEN/CLOSE button to reset the microcomputers
(1C101, 102, 103). After this. press » PLAY
button. read display window and perform adjust-
ment again.
.
Press
OPEN/CLOSE
button,
and
after
the
LED
on
. Repeat step 3 about ten times. If there is even one
. Press ® PLAY button to obtain PLAY mode, Press
. Confirm that play begins when p» PLAY button is
display
window
H
the OPEN/CLOSE button lights up. press ® PLAY
button.
Confirm that the display window reading is as
shown in Figure A.
This can also be confirmed by displaying the re-
maining time by pressing LAP/REMAINING TIME
button.
variation from the figure, repeat steps 2-3.
Auto Selection (pI) button and Manual Search
(>>> ) button so that the outermost circum-
ference is played. Next press RESET button.
pressed. If it does not, the optical block and OP
base are touching, so push the optical block motor
worm gear by hand in the direction of the arrow, |
as shown in Figure B, and rotate it 1-2 times.
Turn the adjustment screw clockwise one rotation,
and repeat steps 2-6.
1. SCAN Indicator lights up.
3. SCAN Indicator goes out.
2. Timer Counter indicates
yr
; =r
SCAN} REPEAT — |,
Fig. A |
Rotate worm gear 1—2 turns
by hand in the direction of
the arrow.
gear (C}, (D)
optical sled motor
pl
es.
ios)
eae 3 7 =