Kenwood KRF-V7771D Service Manual

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KRF-V7771D/V8881D/VR-2080/209079SPECIFICATIONS (VR-2090)AUDIO sectionRated output power during STEREO operation100 watts per channel minimum RMS, both channels driven, at6 Ω from 20 Hz to 20 kHz with no more than 0.03 % totalharmonic distortion.(FTC)Rated output power during SURROUND operationFRONT(1kHz, 0.7% T.H.D. at 6 Ω) ....................... 100 W + 100 WCENTER(1kHz, 0.7% T.H.D. at 6 Ω) ..................................... 100 WSURROUND(1kHz, 0.7% T.H.D. at 6 Ω) ....................... 100 W + 100 WTotal harmonic distortion ............ 0.004% (1 kHz, 50 W, 6 Ω)Frequency response (IHF’78)CD ...................................... 5 Hz ~ 80 kHz, +0.5 dB, –3 dBSignal to noise ratio (IHF’66)PHONO (MM) ............................................................ 77 dBCD .............................................................................. 90 dBInput sensitivity / impedancePHONO (MM) ............................................ 2.5 mV / 47 kΩCD ............................................................. 200 mV / 47 kΩOutput level / impedanceTAPE REC ................................................. 200 mV / 220 ΩPRE OUT (CENTER, SURROUND, SUBWOOFER)............................................................................ 1 V / 1 kΩTone controlBASS ...................................................... ±7 dB (at 100 Hz)TREBLE ................................................... ±7 dB (at 10 kHz)LOUDNESS controlVOLUME at -40dB level ... +7 dB(100 Hz), +4 dB(10 kHz)DIGITAL AUDIO sectionSampling frequency ....................... 32 kHz, 44.1 kHz, 48 kHzInput level / impedance / wave lengthOptical .................... -15 dBm ~ -21 dBm, 660 nm ±30nmCoaxial ....................................................... 0.5 Vp-p / 75 ΩVIDEO sectionVIDEO inputs / outputsVIDEO (composite) .................................. 1 Vp-p / 75 ΩS VIDEO (luminance signal) ....................... 1 Vp-p / 75 Ω(chrominance signal) ........... 0.286 Vp-p / 75 ΩFM tuner sectionTuning frequency range ........................ 87.5 MHz ~ 108 MHzUsable sensitivity (MONO)...... 1.6μV (75 Ω)/ 15.2 dBf (75 kHz DEV., SINAD 30 dB)50dB quieting sensitivitySTEREO ....................................... 31.6μV (75 Ω)/ 41.2 dBfTotal 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 dBSelectivity (±400 kHz) ..................................................... 70 dBFrequency response ........... 30 Hz ~ 15kHz,+0.5 dB, –3.0 dBAM tuner sectionTuning frequency range10 kHz step ....................................... 530 kHz ~ 1,700 kHzUsable sensitivity (30% mod., S/N 20 dB)............................................................ 16 μV / (600 μV/m)Signal to noise ratio (30 % mod. 1 mV input) ............. 50 dBStereo mini plugTipSleeveRingTipSleeveMini plug (mono)GENERALPower consumption ........................................................ 3.5 AAC outletSWITCHED ............................ 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 sectionRELAY CONTROL terminalMaximum output current ...................................... 20 mAOperating voltage ...................................................... 12 VOutput impedance ................................................... 470 ΩIR RECEIVER IN terminalMaximum output current ...................................... 20 mAOperating voltage ...................................................... 12 VOutput impedance ................................................... 470 ΩIR OUT LCD REMOTE terminalMaximum output current ...................................... 20 mAOperating voltage ...................................................... 12 VOutput impedance ................................................... 470 ΩIR REPEATER CONTROL terminalsMaximum output current ...................................... 20 mAOperating voltage ...................................................... 12 VOutput impedance ................................................... 470 ΩIR RECEIVER IN,IR OUT LCD REMOTE andRELAY CONTROLIR REPEATER OUTShape of plug to be connectedIR IN/OUT specificationTerminal IR RECEIVER IN IR REPEATER OUT andIR OUT LCD REMOTETo Tip Signal SignalTo Ring Ground ———To Sleeve +12 V GroundStatus Power off Power on Power on andwhen switch tovideo inputTo Tip 0 V 0 V +12 VTo Ring 0 V +12 V +12 VTo Sleeve Ground Ground GroundRELAY CONTROL specification1. KENWOOD follows a policy of continuous advancementsin development. For this reason specifications may bechanged without notice.2. Full performance may not be exhibited in extremely coldlocations (below 0 deg.C).NotesNoteswww. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299