CD-SW200
7 – 4
The HF waveform is normal and the time is displayed normally,
but no sound is produced. Or the sound has dropouts.
(4) PLL system check.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be read.
Check the PDOUT waveform. (Figure 6)
Check around pins 26~30 on IC1.
Figure 6
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC 10:1
CH3=1 V
DC 10:1
CH4=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON
CH1 :
0.000 V
CH2 :
0.0 V
Main :
100 K
Zoom :
2 K
Mode : AUTO
Type : EDGE CH2
Delay :
0.0 ns
Hold off :
0.2 µs
CH3 :
0.00 V
CH4 :
0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH1
v/DIV
500 mV
1999/04/05 17:33:17
(5) Others.
Is pin 69 (C2F) on IC1 "L" ?
No
There are too many error flags on a damaged disc which makes
error correction impossible.
Yes
1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on IC1 and the
waveform (Figure 7).
Check again using a known good disc.
If OK, Check the unit.
Figure 7
T
T
DOUT
Stopped
CH1=2 V
DC 10:1
500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON
CH1 :
0.00 V
CH2 :
0.00 V
Main :
1 K
Zoom :
100
Mode : NORMAL
Type : EDGE CH1
Delay :
2.887 ms
Hold off :
0.2 µs
CH3 :
0.00 V
CH4 :
0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
Содержание CD-SW200
Страница 12: ...CD SW200 2 7 APPLY GREASE PULL THE LEVER UNITIL REACH THE ARROW MARK 143 112 3 ...
Страница 13: ...CD SW200 2 8 FIGURE 1 FIGURE 2 APPLY GREASE SLOT CLAMP SW ARM INSIDE BASE SLOT 152 142 118 4 ...
Страница 15: ...CD SW200 2 10 APPLY GREASE AT HALF GEAR AREA ROTATE CLOCKWISE UNTIL REACH HERE MAXIMUM 6 129 ...
Страница 16: ...CD SW200 2 11 CHANGE COLOR TO BLACK 150 151 148 7 ...
Страница 19: ...CD SW200 2 14 10 148 147 146 145 ...
Страница 20: ...CD SW200 2 15 APPLY GREASE WHEN FIXING ITEM 2 MUST FOLLOW AS SHOWN 121 144 130 11 ...
Страница 21: ...CD SW200 2 16 FIGURE 1 FIGURE 3 FIGURE 2 APPLY GREASE SC141 APPLY GREASE 117 12 ...
Страница 24: ...CD SW200 2 19 APPLY GREASE BEHIND THE LEVER NEED TO APPLY GREASE PULL IT THEN LEVER WILL MOVE IN 115 15 ...
Страница 29: ...CD SW200 2 24 BIG SLOT FACING OUT 110 20 ...
Страница 33: ...CD SW200 2 28 804 24 SCREW TORQUE 3 kgf cm 0 5 0 ...
Страница 40: ...CD SW200 2 35 GAP N G O K N G APPLY GREASE MUST MAKE SURE SNAP PROPELY BOTH SIDE ALL SURFACE MUST TOUCH 104 31 ...
Страница 41: ...CD SW200 2 36 NO GAP HAVE GAP O K N G 32 ...
Страница 48: ...CD SW200 3 7 MOME ...
Страница 55: ...CD SW200 5 4 M E M O ...
Страница 101: ...CD SW200 15 12 CD MECHANISM PARTS 701 304 701 302 301 NM1 703x2 305x2 NSW1 NM2 308 PWB F 306 2 306 704 307 306 1 306 3 ...
Страница 121: ...CD SW200 MEMO ...
Страница 122: ...CD SW200 MEMO ...