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CR300
17
Test Point
Adjustment Point
Adjustment Value
[Procedure]
3-5-2. M-S Mix Ratio Adjustment
CN102 - pin 3 (TE) and pin 4 (MPP)
RECORD and REC MUTE buttons
Adjust until the value of output signal from pin 3 (TE) and pin 4 (MPP) of CN102 are the same,
or the differential output of these signals is minimal.
Press the AUTO/MANUAL button so that “02_F3” appears on the FL display.
Press the FINALIZE button for focus-in.
Press the PLAY button for CAV-servo spindle kick (the status where the spindle rotates with the focus servo on and
tracking servo off).
Adjust with the RECORD and REC MUTE buttons until the value to be reached is obtained.
Press the SET button to register the adjustment.
Once the adjustment is registered with the SET button, “?” on the FL display will disappear.
Press the STOP button to stop the unit.
(1)
(2)
(3)
(4)
(5)
(6)
Oscilloscope
10:1 probe
10 : 1
10 : 1
TE
CH1
CH2
39k
Ω
39k
Ω
VC
MPP
0.001
µ
F
0.001
µ
F
NOTE:
For adjustment, use the following circuits.
NOTE:
Adjustment must be done around mid-radius on a disc.
Test Point
Adjustment Point
Adjustment Value
[Procedure]
3-5-3. Tracking Offset Adjustment
CN354 - pin 2 (TE) or CN102 - pin 3 (TE)
RECORD and REC MUTE buttons
0 mV ± 10 mV
Press the AUTO/MANUAL button so that “03_F6” appears on the FL display.
Press the RECORD and REC MUTE buttons until the above adjustment value to be reached is obtained.
Press the SET button to register the adjustment.
Once the adjustment is registered with the SET button, “?” on the FL display will disappear.
(1)
(2)
(3)
Oscilloscope
10:1 probe
10 : 1
FE
VC
NOTE:
Perform the adjustment in STOP mode.
This adjustment is possible with the low-pass filter used in adjustment 5 above attached.
Содержание CR300
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