Denon DCM-560 - Adjustment Procedures; Required Equipment and Presets; Focus Gain Adjustment

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(2) Necessary equipment for adjustment
1. Dual trace oscilloscope
2. Reference disc (CA-1094)
3. Oscillator (10 Hz ~ 10 kHz, 0 ~ 3 Vp-p)
4. Frequency counter (readable more than 5 KHz)
5. Filter for measurement
(Main unit)
(3) Preset
Preset VR101, 102 as per right figure.
VR101
(F-GAIN)
VR102
(F-GAIN)
4. Focus gain
Connection
Oscilloscope
Main Unit
Filter
TP101- © (FEO)
TP101- @ (FEI)
Input 33 kQ
1. Focus gain (VR101)
2. Tracking gain (VR102)
3. Tracking offset recheck
4. HF Level recheck
Output
0.001 uF (Oscilloscope)
(Filter for measurement)
W0J156 O’clck
4
WO0J156 O'cick
Nw]
Counter
TP101- © (VC)
Oscillator
(Volume) (Oscilloscope)
930 Hz
@ DC range VR101
@ X-Y mode
Phase 90°
Waveform not right
Y axis
<-> X axis
16
1. Push |Il PAUSE |. (Displays track number G2 )
2. Connect oscillator.
3. Set oscillator to 930 Hz/2 Vp-p.
4. Switch oscilloscope input to X-Y mode.
5. Adjust VR101 [F-GAIN] to symmetrize Lissajous
figures to X-Y axes.