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CLD-D503, CLD-D570
1.6.4 MECHANICAL ADJUSTMENT
NOTE:
All VRs and CNs ( SUE
in the tables are parts of MAIN ASSY.
Tilt offset
Check and adjustment
Player condition
Adjustment procedure
- Power ON
* Test mode
Waveform and connection diagram
1. Check if the tilt indication on the test mode screen is at T—6 to T—8.
2. If the tilt indication is not at T—6 to T—8, adjust VR607 until the tilt
Tilt indication on Test mode
* TV monitor
Adjusts this figure while looking at
it on the test mode screen.
screen
+ Disc not installed
indication reaches T—6 to T—8.
"+ Test mode
TRK servo OFF
Note: Be careful not to turn the centering adjustment screw past its limit.
* © Screwdriver (Large)
X:
200mV/div
X-Y mode
1. Move the slider until it does not come
in contact with the mechanical
Y: SOmV/div
Mechani
bl
ee
CN106
Tilt
ON
the
slid
di
S—IN
ence
st
t the s l i
ition indication
S—IN.
Ssmesccinig
lechanism assembly
. STD —901 or STD ~902
ilt servo
copper at the slider position indication
Centering adjustment screw
;
X:@pin
(TRK ERR)
+ Innermost track of STD—901
or
2. Observe TRK ERR (Xch) and TRK SUM (Ych) at the X—Y mode during
adjustment for A—side play
;
* MlX resistor
:
.
for A—side play
10K
¥:@+@pin (TRK SUM)
STD—902 which does not come
TRK Servo OFF.
in contact with the mechanical
stopper.
40K
3. Adjust centering adjustment screw for A—side until the Lissajous' figure is
horizontal.
LIOK 13071)
Adjust until the Lissajous' figure is horizontal
+ Test mode
TRK servo OFF
Vv: 50mV/div
1, Observe TRK ERR at CH1 of the oscilloscope during TRK Servo OFF.
Inner track of STD ~ 901 or
FCS balance adjustment
VR605
(1) TRK ERR MAX
STD - 902
Test mode
.
TRK servo ON
1. Observe RF at CH1 of the oscilloscope at TRK Servo ON.
FCS balance adjustment
* Oscilloscope
CN106
>
:
.
.
4
VR606
:
Tilt servo ON
2. Adjust VR606 until the amplitude of the waveform reaches its maximum and
(2) RF LEVEL MAX
» STD —901 or STD - 902
@pin (RF)
.
Inner track of STD - 901 or
;
the envelope is very clear.
ue Sacto
2
STD - 902
pe aueecty
* Test mode
TRK servo ON
the envelope is very clear.
Adjust until the amplitude
teaches its maximum.
Note : Be careful not to turn the TAN adjustment screw past its limit.
Tangential direction
Carriage assembly
* Oscilloscope
1. Observe RF at CH1 of the oscilloscope at TRK Servo Close.
,
:
CN106
Tilt servo ON
.
.
7
.
Adjust until the amplitude reaches its maximum
angle adjustment for
TAN adjustment screw
* STD —901 or STD —902
.
2. Turn TAN adjustment screw for A—side unti! the amplitude of the waveform
and the envelope is very clear.
:
:
:
@pin (RF)
« Outermost track of STD--901 or
.
.
.
.
'
A--side play
for A—side play
» ® Screwdriver (Medium)
reaches its maximum and the envelope is very clear.
After adjustment,
STD—902 (position where TAN
stabilize the screw with an adhesive.
screw can be seen)
* Test mode
TRK servo OFF
Tilt servo ON
* Innermost track of STD—901
or
STD—902 which does not come
in contact with the mechanical
stopper.
X:
200mV/div
Y:
SOmV/div
AC mode
+ Oscilloscope
+ STD -901 or STD -902
CN106
+ MIX resistor
X:@pin (TRK ERR)
we
Y:@+@pin (TRK SUM)
10K
Note : Be careful not to turn the centering adjustment screw past its limit.
Mechanism assembly
Fine centering
adjustment for A—side play
stabilize the screw with an adhesive.
+ Test mode
TRK servo ON
1. Search for address 115 of GGV1003 and still the address
Crosstalk check screen
_ Tilt servo ON
2. Check the crosstalk, If the crosstalk is pronounced, adjust VR607 until the
+ GGV1003still
crosstalk is not noticeable.
#115
If the crosstatk is pronounced, adjust until the crosstalk is not noticeable.
Crosstalk check and tilt
offset adjustment.
* TV monitor
* GGV1003
ort Fal
Panel
Hole in the rear
of the TAN
adjustment screw]
oy OC)
Bottom View)
When the crosstalk is still noticeable in spite of the adjustment in (7), after carrying out the adjustment in (1) and bringing the tilt indication to T—6 to T—8, use a
hexagonal wrench driver (straight type, size : 3mm) to adjust the TAN adjustment screw on the bottom side of the player through the GGV1003 #115 STILL screen.
Afterwards, perform the adjustment procedures from (6).
Screwdriver
" Package box ... etc.
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