Specifications - Kenwood R-SG7 Service Manual

R-SG7/SG7G
Receiver (R-SG7)
[Amplifier section]
Rated power output
Class AB operation
20 watts per channel minimum RMS, both channels driven,
at 6 Ω, 1 kHz with no more than 10 % total harmonic distor-
tion.
(DIN) 1 kHz at 6 Ω, 0.7 % T.H.D. ..................... 15 W + 15 W
Class A operation
7.5 watts per channel minimum RMS, both channels driven,
at 6 Ω, 1 kHz with no more than 10 % total harmonic distor-
tion.
Total harmonic distortion .................... 0.02% (1 kHz, 10 W, 6 Ω)
Frequency response .................... 20 Hz ~ 40 kHz, +0 dB, -3 dB
Input sensitivity / Impedance .............................. 200 mV / 47 kΩ
Output level / Impedance
SUPER WOOFER PRE OUT ............................ 2.0 V / 1 kΩ
TAPE REC ..................................................... 200 mV / 1 kΩ
Signal to noise ratio ............................................ 96 dB (IHF'66)
[FM Tuner section]
Tuning frequency range ............................ 87.5 MHz ~ 108 MHz
Usable sensitivity (DIN)
MONO ... 1.2 µV (75 Ω) / 13.2 dBf (40 kHz DEV., S/N 26 dB)
Signal to noise ratio
(DIN weighted at 1 kHz, 65.2 dBf input)
MONO ......................................................................... 65 dB
STEREO ...................................................................... 58 dB
Selectivity (DIN ±300 kHz) ................................................ 64 dB
Stereo separation (DIN at 1 kHz) ...................................... 35 dB
[AM Tuner section]
Tuning frequency range ............................ 531 kHz ~ 1,602 kHz
Usable sensitivity (30% mod., S/N 20 dB)
....................................................... 15 µV / (500 µV/m)
Signal to noise ratio (at 30% mod., 1 mV input)
..................................................................................... 48 dB
Output level / Impedance (30% mod., 1 mV input)
......................................................................... 0.18 V / 1 kΩ
General
Power consumption ........................................................... 45 W
Dimensions .............................................................. W: 200 mm
Weight (net) ....................................................................... 3.0 kg
1.KENWOOD follows a policy of continuous advancements in development. For this reason specifications may
be changed without notice.
Notes Notes
2.Sufficient performance may not be possible at very low temperatures (under a water-freezing temperature).
Note:
Component and circuit are subject to modification to insure best operation
under differing local conditions. This manual is based on Europe (E) standard,
and provides information on regional circuit modification through use of alter-
nate schematic diagrams, and information on regional component variations
through use of parts list.

SPECIFICATIONS

CD player (DP-SG7)
Laser ......................................................... Semiconductor laser
Playing rotation .................................. 200 rpm ~ 500 rpm (CLV)
Frequency response ............................. 4 Hz ~ 20 kHz, ±1.0 dB
Signal to noise ratio ....................................... More than 100 dB
Dynamic range .................................................. More than 96 dB
Total harmonic distortion
............................................... Less than 0.004 % (at 1 kHz)
Channel separation ......................... More than 92 dB (at 1 kHz)
Wow & Flutter ............................................. Unmeasurable Limit
Output level / Impedance
Fixed ................................................................... 1.2 V / 1 kΩ
Digital output
Optical ................................................. –15 dBm ~ –21 dBm
General
Power consumption ........................................................... 10 W
Dimensions .............................................................. W: 200 mm
Weight (net) ....................................................................... 2.0 kg
Cassette deck (X-SG7)
Track .................................................. 4-track, 2-channel stereo
Recording system ............................................. AC bias system
Heads
Playback / recording head .................................................. 1
Erasing head ...................................................................... 1
Motors ...................................................................................... 1
Wow and flutter .............................................. 0.1 % (W.R.M.S.)
Fast winding time ...................................... Approx. 110 seconds
Frequency response
TYPE I tape ............................... 40 Hz to 18,000 Hz, ±3 dB
TYPE IV tape ............................. 40 Hz to 19,000 Hz, ±3 dB
Signal to noise ratio
Dolby B NR ON ...................................... 67 dB (CrO2 tape)
Dolby C NR ON ...................................... 73 dB (CrO2 tape)
Dolby NR OFF ........................................ 60 dB (CrO2 tape)
Input sensitivity / Impedance ............................ 77.5 mV / 47 kΩ
Output level / Impedance .................................. 775 mV / 10 kΩ
General
H: 77 mm
D: 278 mm
Power consumption ........................................................... 14 W
Dimensions .............................................................. W: 200 mm
Weight (net) ....................................................................... 2.2 kg
14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan
KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.
(wave length 660 nm)
H: 77 mm
D: 249 mm
(Frequency: 105 kHz)
(C-60 tape)
H: 77 mm
D: 249 mm