CD-ES600/CD-ES66
Stopped
(1) Focus-HF system check.CH1=500mVCH3=500mV500ms/div
DC 10:1DC 10:1(500ms/div)
TNORM:20kS/s
Although a CD is inserted and the cover is closed, "NO DISC" is
displayed.FDO1
Press the Tray1 CD Eject Button without inserting a disc, and try
starting the playback operation.
TDO
3
CH1
v/DIV
500mV
=Filter==Offset==RecordLength==Trigger=
Smoothing: ONCH1 :0.000VMain :100KMode : AUTO
BW :FULLCH2 :0.0VZoom :2KType : EDGECH1
CH3 :0.000VDelay :0.0ns
CH4 :0.00VHoldoff :0.2?s
Figure 1
1. Does the pickup move to the PICKUP-IN Switch (NSW1) posi-NoSled motor (NM2).
tion?
Yes
2. Does the focus (lens) move up and down?NoCheck the focus peripheral circuit.
(Waveform drawing Figure 1)
Yes
3. Is the laser lit?NoCheck the laser diode driver Q1 peripheral circuit.
Yes
4. Is the turntable rotating?NoSpindle motor (NM1).
When a disc is loaded, start playback operation.
1. Is focus servo activated?NoPins 7~11, 13,19 and 20 on IC1
(Waveform drawing Figure 2)Check the laser diode driver Q1 peripheral circuit.
Yes
2. Does DRF change from "L" to "H"?NoIs the disc rotating?NoCheck the spin system.
If the disc is spinning and a HF waveform
is generated, DRF will go H.
Yes
3. Is the HF waveform normal?NoIf the level is not normal.
(Waveform drawing Figure 3)
Stopped
CH1=500mVCH2=10VCH3=1V500ms/div
DC 10:1DC 10:1DC 10:1(500ms/div)
NORM:20kS/s
FDO
1
TDRF
2
TE
3
CH2
CH Position ToPosition0.20div
-3div-1div0div+1div+3div
=Filter==Offset==RecordLength==Trigger=
Smoothing: ONCH1 :0.000VMain :100KMode : AUTO
BW :FULLCH2 :0.0VZoom :2KType : EDGECH1
CH3 :0.00VDelay :0.0nsVp-p=1.0V~1.3V
CH4 :0.00VHoldoff :0.2?s0.5mV/div,0.5?sec/div
Figure 2Figure 3
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ACEC
