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RXD-V333/V535//V636/V737
9
ADJUSTMENT
CD player adjustment
FIG.
(d)
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
PLAYER
SETTINGS
Note:
Type 4 disc : SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47 k
Ω
+ 390 pF or so.
Step 1~4 are in Test Mode.
1
1. While pressing the "DISC 3" key, turn the power on to enter the test mode.
2. Load a disc on disc 1 tray.
LASER CURRENT
CHECK
Test disc
Type 4
Connect the DC volt-
meter to
CN6(pin1 and 2)
on X32.
–
0.5±0.2V
Press the
PLAY/PAUSE key,
then confirm that the
display is 03 or 05.
2
FB BIAS
Test disc
Type 4
Connect an oscilloscope
as follows.
+SIDE: RF(X32, CN1,
1
)
GND: VC(X32, CN1,
4
)
VR 1
Optimum eye
pattern
Press the
PLAY/PAUSE key,
then confirm that the
display is 03 or 05.
(d)
¶
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.
RF signal: AC coupled