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CD SECTION
• Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
Items adjusted automatically
(1) Offset adjustment (The offset voltage between the head
amplifier output and the VREF reference voltage is
compensated inside the IC.)
* Focus offset adjustment
* Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing Fig. 15
EFBL)
(3) Gain adjustment (The gain is compensated inside the IC
so that the loop gain at the gain crossover frequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
T
Stopped
CH2=200mV
CH1=500mV
DC 10:1
DC 10:1
T
FDO
1
TE
3
EFBL
2
=Filter=
=Offset=
Smoothing : ON
CH1 :
0.000V
BW : FULL
CH2 :
0.000V
CH3 :
0.00V
CH4 :
0.00V
Figure 15
CD ERROR CODE DESCRIPTION
Error
[Servo System Error]
0001
Cannot detect Pickup-in SW
0002
DSP access error
[Error during close operation]
Open/Close SW not functioning (Low → High)
0101
Open/Close SW not functioning (High → Low)
0103
[Error during open operation]
Open/Close SW not functioning (Low → High)
0201
Open/Close SW not functioning (High → Low)
0203
[Error during skip operation]
0302
Pickup-in SW is not detected
0306
During Disc 1 search, Open/Close SW or Clamp SW
or Disc SW do not change to low.
Clamp SW not function (Low → High)
0307
Clamp SW not function (High → Low)
0308
1999/04/05 20:26:47
500ms/div
CH3=1V
(500ms/div)
DC 10:1
NORM:20kS/s
=Record Length=
=Trigger=
Main :
100K
Mode : SINGLE
Zoom :
2k
Type : EDGE CH1
Delay :
Hold off :
State Code
TEST MODE
· Setting the test mode
Any one of test mode can be set by pressing several keys as
follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test
Function:-CD test mode.
C D
<<
<<PLAY>> key input.
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly
<<
1>> key: Track 4
<<
2>> key: Track 9
<<
3>> key: Track 15
<<STOP>> key input.
VOL — Last memory
BAL — CENTER
CH2
P.GEQ — FLAT
v/DIV
200mV
X-BASS — OFF
To cancel : Power OFF
0.0ns
0.2µs
– 15 –
CD-K7000V,CP-C7000
-Enter test mode.
T E S T
OPEN/CLOSE operation is using manual.
>>, <<
>> buttons make pick's slide possible.
<<MEMORY>> key input.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play at that
specific point.
STOP
<<STOP>> key input.
Sliding the PICKUP with
<<
must only be in STOP mode.
IL isn't done
Laser ON.
STOP
>>, <<
>> button
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