Kenwood KRF-V7771D, Service Manual

Page: 57 / 62

KRF-V7771D/V8881D/VR-2080/2090
79
SPECIFICATIONS (VR-2090)
AUDIO section
Rated output power during STEREO operation
100 watts per channel minimum RMS, both channels driven, at
6
Ω
from 20 Hz to 20 kHz with no more than 0.03 % total
harmonic distortion.(FTC)
Rated output power during SURROUND operation
FRONT
(1kHz, 0.7% T.H.D. at 6
Ω
) ....................... 100 W + 100 W
CENTER
(1kHz, 0.7% T.H.D. at 6
Ω
) ..................................... 100 W
SURROUND
(1kHz, 0.7% T.H.D. at 6
Ω
) ....................... 100 W + 100 W
Total harmonic distortion ............ 0.004% (1 kHz, 50 W, 6
Ω
)
Frequency response (IHF’78)
CD ...................................... 5 Hz ~ 80 kHz, +0.5 dB, –3 dB
Signal to noise ratio (IHF’66)
PHONO (MM) ............................................................ 77 dB
CD .............................................................................. 90 dB
Input sensitivity / impedance
PHONO (MM) ............................................ 2.5 mV / 47 k
Ω
CD ............................................................. 200 mV / 47 k
Ω
Output level / impedance
TAPE REC ................................................. 200 mV / 220
Ω
PRE OUT (CENTER, SURROUND, SUBWOOFER)
............................................................................ 1 V / 1 k
Ω
Tone control
BASS ......................................................
±
7 dB (at 100 Hz)
TREBLE ...................................................
±
7 dB (at 10 kHz)
LOUDNESS control
VOLUME at -40dB level ... +7 dB(100 Hz), +4 dB(10 kHz)
DIGITAL AUDIO section
Sampling frequency ....................... 32 kHz, 44.1 kHz, 48 kHz
Input level / impedance / wave length
Optical .................... -15 dBm ~ -21 dBm, 660 nm
±
30nm
Coaxial ....................................................... 0.5 Vp-p / 75
Ω
VIDEO section
VIDEO inputs / outputs
VIDEO (composite) .................................. 1 Vp-p / 75
Ω
S VIDEO (luminance signal) ....................... 1 Vp-p / 75
Ω
(chrominance signal) ........... 0.286 Vp-p / 75
Ω
FM tuner section
Tuning frequency range ........................ 87.5 MHz ~ 108 MHz
Usable sensitivity (MONO)
...... 1.6
µ
V (75
Ω
)/ 15.2 dBf (75 kHz DEV., SINAD 30 dB)
50dB quieting sensitivity
STEREO ....................................... 31.6
µ
V (75
Ω
)/ 41.2 dBf
Total harmonic distortion (1 kHz)
MONO ............................................... 0.3 % (65 dBf input)
STEREO ............................................. 0.6 % (65 dBf input)
Signal to noise ratio (1 kHz, 75 kHz DEV.)
MONO ............................................... 75 dB (65 dBf input)
STEREO ............................................. 68 dB (65 dBf input)
Stereo separation (1 kHz) .............................................. 38 dB
Selectivity (
±
400 kHz) ..................................................... 70 dB
Frequency response ........... 30 Hz ~ 15kHz,+0.5 dB, –3.0 dB
AM tuner section
Tuning frequency range
10 kHz step ....................................... 530 kHz ~ 1,700 kHz
Usable sensitivity (30% mod., S/N 20 dB)
............................................................ 16
µ
V / (600
µ
V/m)
Signal to noise ratio (30 % mod. 1 mV input) ............. 50 dB
Stereo mini plug
Tip Sleeve
Ring
Tip Sleeve
Mini plug (mono)
GENERAL
Power consumption ........................................................ 3.5 A
AC outlet
SWITCHED ............................ 2 (total 90 W, 0.75 A max.)
Dimensions .......................................... W : 440 mm (17-5/16")
H : 162 mm (6-3/8")
D : 391 mm (15-3/8")
Weight (Net) ...................................................... 12 kg (26.5 lb)
Relay and IR IN/OUT section
RELAY CONTROL terminal
Maximum output current ...................................... 20 mA
Operating voltage ...................................................... 12 V
Output impedance ................................................... 470
Ω
IR RECEIVER IN terminal
Maximum output current ...................................... 20 mA
Operating voltage ...................................................... 12 V
Output impedance ................................................... 470
Ω
IR OUT LCD REMOTE terminal
Maximum output current ...................................... 20 mA
Operating voltage ...................................................... 12 V
Output impedance ................................................... 470
Ω
IR REPEATER CONTROL terminals
Maximum output current ...................................... 20 mA
Operating voltage ...................................................... 12 V
Output impedance ................................................... 470
Ω
IR RECEIVER IN,
IR OUT LCD REMOTE and
RELAY CONTROL
IR REPEATER OUT
Shape of plug to be connected
IR IN/OUT specification
Terminal IR RECEIVER IN
IR REPEATER OUT and
IR OUT LCD REMOTE
To Tip Signal Signal
To Ring Ground ———
To Sleeve +12 V Ground
Status Power off Power on Power on and
when switch to
video input
To Tip 0 V 0 V +12 V
To Ring 0 V +12 V +12 V
To Sleeve Ground Ground Ground
RELAY CONTROL specification
1. KENWOOD follows a policy of continuous advancements
in development. For this reason specifications may be
changed without notice.
2. Full performance may not be exhibited in extremely cold
locations (below 0 deg.C).
Notes Notes
KRF-V7771D(K) COVER( 98.12.8 18:58 y [ W 12
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