DPF-K6010V
10
ADJUSTMENT
FIG.
VC
+
_
L.P.F.
+
+
L.P.F.
VTVM
VTVM
1
2
3
4
5
6
7
1.2 kHz
50 mVrms
(a)
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
PLAYER SETTINGS
1
LASER
POWER
−
Apply the sensor
section of optical
power meter on the
pickup lens.
−
On the power from 0.05 to
0.15 mW, when the dif-
fraction grating is correct-
ly aligned with the RF
level of 0.8 Vp-p or more.
While pressing the DISC 3
key, turn the AC ON. Press
the DISPLAY key, and then
press the SELECT [
3
] key.
confirm that the display is
"
2 01
".
(a) Laser power
Pickup
3
FOCUS
ERROR
BIAS
Test disc
Type 4
Connect an oscillo-
scope as follows.
CH1 : RF (CN2 PIN1)
CH2 : TE1 (CN2 PIN6)
FE BIAS
VR1
Optimum eye pattern
Press the SELECT key(
3
),
then confirm that the display
is "
2 02
".
(b)
or
(d)
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.
0.05~0.15 mW
Optical power meter
c
2
TRACKING
ERROR
BALANCE
Test disc
Type 4
Connect an oscillo-
scope as follows.
CH1 : RF (CN2 PIN1)
CH2 : TE1 (CN2 PIN6)
TE BALANCE
VR2
Symmetry between upper
and lower patterns
DC=0
±
25mV
Press the SELECT key(
3
),
then confirm that the display
is"
2 01
".
CN2
(e) Tracking gain
(e)
4
TRACKING
GAIN
Test disc
Type 4
Apply signal of 1.2
kHz, 50mVrms to
CN2 pin 5-6.
Connect a LPF to
CN2 pin 5-6 to
which you connect
an oscilloscope or
AC voltmeters.
TRACKING
GAIN
VR3
Two VTVMs should read
the same value.
Press the SELECT key(
3
),
then confirm that the display
is "
2 02
".
DPF-K6010V(K)
COVER1,1(
98.12.10
10:54
y [ W 17
