Table of Contents
Advertisement
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
Frequency
AM IF
450 kHz
AM Band
—
Coverage
AM Tracking 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 15-2
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
Frequency
Setting/
Instrument
Display
Adjusting
Connection
Parts
1,602 kHz
T351
*1
531 kHz
(fL): T306
*2
1.1 ± 0.1 V
990 kHz
(fL): T303
*1
FM BAND
COVERAGE fL
Figure 15-1 ADJUSTMENT POINT
CD-BP2000W/210W/2000A/BK2000W/210W
• FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Test Stage
Frequency Frequency
FM Band
—
Coverage
FM RF
98.00 MHz 98.00 MHz
(10-30 dB)
*1. Input: Antenna, Output: TP301
*2. Input: Antenna, Output: Speaker terminal
CNP302
AM LOOP
SO302
ANTENNA
FM ANTENNA
1
IC301
TP301
AM
R381
TRACKING fL
L312
T302
T301
FM IF
1
T351
AM IF
Stopped
CH1=500mV
T
FDO
1
TE
3
EFBL
2
=Filter=
Smoothing : ON
BW : FULL
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
– 15 –
Serring/
Display
Adjusting
Point
87.50 MHz
T301(fL);
1.3 V ± 50 mV
L312
T303
T306
AM BAND
COVERAGE fL
TP302
R357
T
1999/04/05 20:26:47
CH2=200mV
CH3=1V
DC 10:1
DC 10:1
DC 10:1
=Offset=
=Record Length=
CH1 :
0.000V
Main :
100K
Mode : SINGLE
CH2 :
0.000V
Zoom :
2k
Type : EDGE CH1
CH3 :
0.00V
Delay :
Hold off :
CH4 :
0.00V
Figure 15-2
State Code
Instrument
Connection
*1
*2
500ms/div
(500ms/div)
NORM:20kS/s
CH2
v/DIV
200mV
=Trigger=
0.0ns
0.2us
Hide quick links:
Advertisement
Table of Contents
