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CD-BA1200H
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Frequency
Test Stage
Frequency
Display
AM IF
450 kHz
1,620 kHz
AM Band
—
522 kHz
Coverage
AM Tracking 990 kHz
990 kHz
*1. Input: Antenna
Output: TP302
*2. Input: Antenna
Output: TP301
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.
14-2 EFBL)
(3) Gain adjustment (The gain is compensated inside the IC
so that the loop gain at the gain crossover frequency will
be 0dB.)
* Focus gain adjustment
* Tracking gain adjustment
All manuals and user guides at all-guides.com
• FM
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Setting/
Instrument
Adjusting
Connection
2: The parts in the FM front end section are prepared in a
Parts
T351
*1
(fL): T306
*2
1.1 ± 0.1 V
(fL): T303
*1
SO301
FM ANTENNA
CNP302
TERMINAL
AM LOOP
ANTENNA
1
FE301
TP301
R381
T351
AM IF
TP302
Figure 14-1 ADJUSTMENT POINTS
CD ERROR CODE DESCRIPTION
– 14 –
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
complete unit, so you can't obtain each part individually
MAIN PWB
AM
TRACKING fL
T303
AM BAND
COVERAGE fL
T306
R357
Error
State Code
[Servo System Error]
0001
Cannot detect Pickup-in SW
0002
DSP access error
[Error during close operation]
Open/Close SW Low → High not functioning
0101
Open/Close SW High → Low not functioning
0103
[Error during open operation]
Open/Close SW Low → High not functioning
0201
Open/Close SW High → Low not functioning
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 Low → High not functioning
0307
Clamp SW High → Low not functioning
0308
T
Stopped
CH1=500mV
CH2=200mV
CH3=1V
DC 10:1
DC 10:1
DC 10:1
T
FDO
1
TE
3
EFBL
2
=Filter=
=Offset=
=Record Length=
Smoothing : ON
CH1 :
0.000V
Main :
BW : FULL
CH2 :
0.000V
Zoom :
CH3 :
0.00V
CH4 :
0.00V
Figure 14-2
1999/04/05 20:26:47
500ms/div
(500ms/div)
NORM:20kS/s
CH2
v/DIV
200mV
=Trigger=
100K
Mode : SINGLE
2k
Type : EDGE CH1
Delay :
0.0ns
Hold off :
0.2us
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