Adjustment - Kenwood CD-403 Service Manual

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No. ITEM
Open the tray (Normal mode), then turn the power off.
1 LASER POWER
1. Load a disc on disc 1 tray.
2. Turn the power off.
3. While pressing the REPEAT. key, turn the power ON to enter the Test mode.
FOCUS ERROR
1
BIAS
LASER CURRENT
2
CHECK
Note:
Type 4 disc : SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47 kΩ+ 390 pF or so.
Step 1~4 are in Test Mode.
TE
L 13942296513
(a) Laser power
Pickup
www
.
5
CD-403/403-S/404/406/DPF-R3030/R3030-S/R4030/R4030-S/R6030

ADJUSTMENT

INPUT OUTPUT
SETTINGS SETTINGS
Apply the sensor
section of optical
−
power meter on the
pickup lens.
Connect an
Test disc oscilloscope as
Type 4 follows.
CH1:
Connect the DC
Test disc voltmeter to
Type 4 CN3(pin3 and 4)
on X32.
0.08~0.15 mW
Optical power meter
x ao u163
y
i
2 9
8
PLAYER ALIGNMENT
SETTINGS POINTS
While pressing the
REPEAT key, turn
the AC ON. (Test
−
mode) Press the
PLAY/PAUSE key,
then confirm that the
display is "03".
Press the
PLAY/PAUSE key, FE BIAS
then confirm that the VR1
display is "05".
Press the
PLAY/PAUSE key,
-
then confirm that the
display is 03 or 05.
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
ALIGN FOR FIG.
On the power from
0.08 to 0.15 mW,
when the diffraction
grating is correctly (a)
aligned with the RF
level of 1.0 Vp-p or
more.
Optimum eye pattern
0.5±0.2V
0 5 8 2 9 9 4 2 8
m
9 9
9 9