Sony 190 Manual

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MHC-GX470/RG590S/RG490S/RG290/RG190.GB.2-668-367-12(1)
Cleaning the cabinet
Clean this system with a soft cloth slightly 
moistened with a mild detergent solution. Do 
not use any type of abrasive pad, scouring 
powder, or solvent, such as thinner, benzine, or 
alcohol.
To prevent a tape from being 
accidentally recorded over
Break off the cassette’s overwrite protection 
tab from side A or B as illustrated.
Break off the 
cassette tab
To later reuse the tape for recording, cover the 
broken tab with adhesive tape.
About a tape longer than 90 minutes
The use of the tape with more than 90 minutes 
of play time is not recommended except for 
long, continuous recording or playback.
Cleaning the tape heads
Use dry- or wet-type cleaning cassette 
(available separately) after every 10 hours of 
use, before you start an important recording, or 
after playing an old tape. Failure to clean the 
tape heads can cause degraded sound quality or 
an inability of the unit to record or play tapes. 
For details, refer to the instructions of the 
cleaning cassette.
Demagnetizing the tape heads
Use a demagnetizing cassette (available 
separately) after every 20 to 30 hours of 
use. Failure to demagnetize the tape heads 
can cause an increase in noise, a loss of 
high frequency sound, and an inability to 
completely erase tapes. For details, refer to the 
instructions of the demagnetizing cassette.
Specifications
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
(MHC-GX470 The United States model only)
With 6 ohm loads, both channels driven, from 
120 – 10,000 Hz; rated 125 watts per channel 
minimum RMS power, with no more than 10% 
total harmonic distortion from 250 milliwatts to 
rated output.
Amplifier section
North American model:
MHC-GX470
Front speaker
Continuous RMS power output 
(reference): 125 + 125 watts (6 ohms at 
1 kHz, 10% THD)
Total harmonic distortion: less than 0.07% 
(6 ohms at 1 kHz, 80 W)
Subwoofer
Continuous RMS power output 
(reference): 150 watts (6 ohms at 80 Hz, 
10% THD)
Total harmonic distortion: less than 0.07% 
(6 ohms at 80 Hz, 90 W)
European and Russian models:
MHC-RG590S
Front speaker
DIN power output (rated): 110 + 110 watts 
(6 ohms at 1 kHz, DIN)
Continuous RMS power output 
(reference): 145 + 145 watts (6 ohms at 
1 kHz, 10% THD)
Music power output (reference): 290 + 
290 watts (6 ohms at 1 kHz, 10% THD)
Subwoofer
DIN power output (rated): 130 watts 
(6 ohms at 80 Hz, DIN)
Continuous RMS power output 
(reference): 170 watts (6 ohms at 80 Hz, 
10% THD)
Music power output (reference): 340 watts 
(6 ohms at 80 Hz, 10% THD)
Continued