MICROFILM
SERVICE MANUAL
MDX-C670/C670RDS
Refer to RM-X2S/X3S Service Manual (9-960-039-
∏) issued previously for information of remote
commander (RM-X2S) supplied with this set.
Photo : MDX-C670RDS
Model Name Using Similar Mechanism NEW
Base Mechanism Type
MG-164K-138
Optical Pick-up Name KMS-241A/J2N
SPECIFICATIONS
MD player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range MDX-C670 :
FM tuning interval :
50 kHz/200 kHz
switchable
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
MDX-C670RDS :
87.5 – 108.0 MHz
Aerial terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 10 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 62 dB (stereo),
65 dB (mono)
Harmonic distortion at 1 kHz
0.9% (stereo),
0.5% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
Capture ratio 2dB
AM (MDX-C670)
Tuning range AM tuning interval :
9 kHz/10 kHz switchable
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
MW/LW (MDX-C670RDS)
Tuning range MW : 531 – 1,602 kHz
LW : 153 – 281 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity AM, MW : 30 µV
LW : 50 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 35 W × 4 (at 4 ohms)
– Continued on next page –
US Model
Canadian Model
E Model
MDX-C670
AEP Model
UK Model
MDX-C670RDS
MDX-C670
FM/AM MINIDISC PLAYER
MDX-C670RDS
FM/MW/LW MINIDISC PLAYER
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