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CD-BK3200V
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency 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
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 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
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
SO302
FM ANTENNA
TERMINAL
T302
FM IF
T301
FM BAND
COVERAGE fL
T351
AM IF
Figure 14-1 ADJUSTMENT POINTS
• FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Test Stage
FM Band
Coverage
FM RF
*1. Input: Antenna
*2. Input: Antenna
CNP301
AM LOOP
ANTENNA
MAIN PWB
T303
IC301
L312
R316
FM RF
TP301
TP302
CD ERROR CODE DESCRIPTION
Error
ER-CD00
ER-CD01
ER-CD10
ER-CD11
ER-CD20
– 14 –
Frequency Frequency
Display
—
88.00 MHz
T301(fL):
1.3 V ± 50 mV
98.00 MHz 98.00 MHz
L312
(10-30 dB)
Output: TP301
Output: Speaker terminal
AM
TRACKING fL
AM BAND
COVERAGE fL
T306
R357
State Code
[Pickup Mechanism Error]
Pickup mechanism error
Pu-in SW detection NG
[CD Changer Mechanism Error]
Changer error
Initial error
Tray error
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 :
100K
BW : FULL
CH2 :
0.000V
Zoom :
2k
CH3 :
0.00V
CH4 :
0.00V
Figure 14-2
Setting/
Instrument
Adjusting
Connection
Point
*1
*2
1999/04/05 20:26:47
500ms/div
(500ms/div)
NORM:20kS/s
CH2
v/DIV
200mV
=Trigger=
Mode : SINGLE
Type : EDGE CH1
Delay :
0.0ns
Hold off :
0.2µs
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