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38
CDX-FM657
6. ADJUSTMENT
6.1 MODULATOR ADJUSTMENT
-
Connection Diagram
-
Adjustment
Note: When ajusting, the frequency is made 89.1MHz.
CD Signal
Adjusting Point
Adjustment Method
Notes
Tuning Voltage
-
∞
L402
DC V Meter:
Adjustment
3.0V±0.1V
Balance Adjustment
-
∞
VR301
Oscilloscope:
38kHz signal becomes minimum
Modulation
400Hz 0dB (*1) VR302
Linear Detector
LEVEL = 7
Adjustment
or
(Spectrum Analyzer):
500Hz 0dB
135±5kHz
*1 : L and R are input at the same time.
EXTENSION UNIT
L402
VR301
CN803
CN201
Antenna
Plug
ANTENNA
SELECT
UNIT
ANTENNA OUT
Antenna
Jack
(Spectrum Analyzer)
DC Regulated
Power Supply
Oscilloscope
FM Tuner
BACK UP
ACC
GND
BAL
TV
DC V Meter
VR302
CN801
CN401
CN802
Linear Detector
Summary of Contents for CDX-FM657
Page 7: ...7 CDX FM657 2 2 EXTERIOR ...
Page 10: ...10 CDX FM657 2 3 CD MECHANISM MODULE ...
Page 16: ...16 CDX FM657 1 2 3 4 1 2 3 4 D C B A A 1 2 SYSTEM CONTROLLER LOUT AAGND ROUT GND VD A 2 2 ...
Page 17: ...17 CDX FM657 5 6 7 8 5 6 7 8 D C B A GGC1257 SRM2B256SLTMX70 B CN201 SRAM IP BUS DRIVER A2 2 ...
Page 21: ...21 CDX FM657 ...
Page 24: ...24 CDX FM657 1 2 3 4 1 2 3 4 D C B A 1 2 3 4 1 2 3 3 3 ANTENNA SELECT UNIT F 4 A CN401 F B ...
Page 29: ...29 CDX FM657 D C B A B EXTENSION UNIT B SIDE B 1 2 3 4 1 2 3 4 ...
Page 40: ...40 CDX FM657 Grating waveform 45 0 75 60 30 90 Echt Xch 20mV div AC Fcht Ych 20mV div AC ...
Page 51: ...51 CDX FM657 7 1 2 DISPLAY CAW1514 COMMON SEGMENT ...
Page 60: ...60 CDX FM657 7 3 BLOCK DIAGRAM A C D E B ...
Page 61: ...61 CDX FM657 F G ...