Kenwood DP-3010 Service Manual page 52

DP-3010
ADJUSTMENT/REGLAGE/ABGLEICH
(a) Laser Power
0.1 ~ 0.3mWw
Pickup
Capteur Optical power meter
Abnehmer Compteur de puissance optique
Optikleistungsmesser
(e) Focus Gain, Tracking Gain
5 pin
5 broche
5 Stift (e) TRACKING GAIN
AC Voltmeter
Voltmétre CA
Voltmeter F
anschliepsen
AG
Osilloscope
AC Voltmeter Oszilloskop
Voltmetre CA:
Voltmeter
anschliefen
1 pin
1
FOCUS GAIN } an
GAIN DE MISE AU POINT | 1.AkHz &.5Vems
FOKUSVERSTARKUNG 'e FOCUS GAIN
TRACKING GAIN
GAIN D' ALIGNMENT
| 1.4kHz 2 5Vrms
SPURHALTEVERSTARKUNG
DP-3010
ADJUSTMENT
{a) Diffraction Grid Confirmation
RN ce DN RN
@ RF and T. Error Signals when Diffraction Grid ss correct
(Picture 1)
CH1 RF
1.0Vidiv
je O(V)}
CH2 T.Error
2.0Vidiv
<< 0(v}
10V/div ® The T. Error is small, and the envelope is as shown
below.
<— O(V)
CH2 T.Error
2.0Vidiv f
<~0Wvi (Picture 2)
(Picture 2)
i Trigger Point
(20msec/div)
@ The RF and T. Error Signals during Test Mode (Focus
ON)
@ There is a "bump" in the T. Error when the RF Trigger
CH1 RF Point is shown in the picture when the Sub- and Main
1.0Vidiv Beams are in the same bit on a track in tracing during
<—-OV) Diffraction Grid Adjustment.
(Picture 3)
CH2 T.Error
2.0Vidiv
<e—Ol(V}
(Picture 3) , eee Bump
(2usec/div)
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