RXD-652/702/752/772S/852/A81/A601/A701
10
ADJUSTMENT
X13 FOIL SIDE VIEW
VR1
FE. B
RF FE1 FE2
TE2 TE1 VC
(d)
(a) Laser Power
(b) Test point
Pickup
0.05~0.15 mW
Optical power meter
RF signal in test mode (PLAY).
Perform the tangential and focusing offset are focused
into one point on the display. The crossing points above
and below the center shall also be looked clearly.
No.
1
2
ITEM
LASER
POWER
FOCUS
ERROR
BIAS
INPUT
SETTING
–
Test disc
Type 4
OUTPUT
SETTING
Connect an oscillo-
scope as follows.
CH1 : RF
CH2 : FE1
GND : VC
Set the senor section
of the optical power
meter on the pickup
lens.
PLAYER
SETTING
Press the"PLAY"key
to check that the dis-
play is "03".
Press the "PLAY"
key. Confirm that the
display is”05”
ALIGNMENT
POINT
FE
BIAS VR1
–
ALIGN FOR
On the power
from.0.05 to 0.15mw.
when the diffraction
grating is correctly
aligned with the RF
level of 0.8Vp-p or
more
Optimum eye pattern
(DC=±330mV)
FIG.
(a)
(b)
(d)
Note:
Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02)
LPF : Around 47k
½
+ 390pF or so.
CD player adjustment
Step 1,2 are in TEST MODE
TEST MODE : While pressing the [CD PALY] key, plug the AC power cord into the AC power wall outlet.
RF signal
F
AC coupled
RXD-652(K)
INT
1P
99.6.9
8:03
PM
y [ W 19
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