Kenwood VR-509 User Manual

46
Additional Information
In case of difficulty
Resetting the Microcomputer
If the microcomputer may malfunction (unit cannot be operated,
or shows an erroneous display) if the power cord is unplugged
while the power is ON, or due to some other external factor. If this
happens, execute the following procedure to reset the micro-
computer and return the unit to its normal operating condition.
Unplug the power cord from the wall outlet, then plug it
back in while holding down the STANDBY key.
• Please note that resetting the microcomputer will clear the contents
of the memory and returns the unit to the state it was in when it left the
factory.
Amplifier
Cause
• The speaker cords are disconnected.
• VOLUME is set to the minimum position.
• MUTE is ON.
• The SPEAKERS switches are set to OFF.
• Speaker cords are short-circuited.
• The speaker cord is disconnected.
• The surround speaker cords and/or the center
speaker cord is disconnected.
• A surround mode has not been engaged.
• The surround and/or center volume controls are
set to the minimum level.
• The audio cord from the turntable is not con-
nected to the PHONO jacks.
• The turntable is not grounded.
• There are many possible causes for this prob-
lem, depending on the type of DVD player used.
• The input mode is set to digital manual.
• The software is copy-guarded.
Remedy
• Connect them properly referring to “Connecting
the speakers”. #
• Adjust the volume to a proper level.
• Turn OFF the MUTE. £
• Set the SPEAKERS switch(es) to ON. )
• Turn the power off, eliminate the short-circuit-
ing, then turn on the power again.
• Connect it properly referring to “Connecting the
speakers”.
• Connect it properly referring to “Connecting the
speakers”.
• Select a surround mode.
• Adjust the speaker levels using the test tone.
¡
• Insert the audio cord plugs securely into the
PHONO jacks.
• Connect the grounding wire to the GND termi-
nal on the rear panel.
• Set the input mode to digital manual before
starting playback of the Dolby Digital source.
7
• Press the INPUT MODE key to select to digital
auto mode. 7
• Copy-guarded video software cannot be re-
corded.
Tuner
Cause
• No antenna is connected.
• The broadcast band is not set properly.
• The frequency of the desired station is not
tuned.
• Noise due to ignition noise from an automobile.
• Noise due to interference from an electric appli-
ance.
• Noise due to a nearby TV set.
• The preset station belongs to a frequency that
cannot be received.
• The preset memory was cleared because the
power cord had been unplugged for a long
period of time.
Remedy
• Connect an antenna. %
• Set the broadcast band properly.
• Tune the frequency of the desired station.
∞
• Install the outdoor antenna away from the road.
• Turn off the power to the appliance.
• Install the receiver farther away from the TV.
• Preset a station with a receivable frequency.
• Preset the station again.
Symptom
Radio stations cannot be received.
Interference.
A station which was preset cannot be re-
ceived by pressing the corresponding nu-
meric key.
Symptom
No sound from the speakers.
The standby indicator blinks and sound is
not output.
Sound is not output from one of the speakers.
Sound is not output from the surround
speakers and / or the center speaker, or their
sound is very small.
A humming noise is generated when the
PHONO input selector is selected.
When playing a Dolby Digital source signal
using a DVD player, the sound is cut off soon
after it starts.
No sound is produced during playback from
a DVD player.
A video source cannot be recorded
normally.
*509/40-48/EN 3/15/01, 2:17 PM46

Kenwood VR-509 Specifications

Audio Specifications

rated power output during stereo operation	100 watts per channel minimum RMS, both channels driven, at 8 Ω from 20 Hz to 20 kHz with no more than 0.7% total harmonic distortion
effective power output during surround operation front	100 W + 100 W
effective power output during surround operation center	100 W
effective power output during surround operation surround	100 W + 100 W
total harmonic distortion	0.05% (1 kHz, 50W, 8 Ω)

Video Specifications

video inputs/outputs composite	1 Vp-p / 75 Ω
s video luminance signal	1 Vp-p / 75 Ω
s video chrominance signal	0.286 Vp-p / 75 Ω
component video luminance signal	1 Vp-p / 75 Ω
component video CB/CR signal	+/– 0.324 Vp-p / 75 Ω

FM Tuner Specifications

tuning frequency range	87.5 MHz ~ 108 MHz
usable sensitivity mono	1.3 µV (75 Ω)/ 13.2 dBf (75 kHz DEV., SINAD 30 dB)
50dB quieting sensitivity stereo	28 µV (75 Ω)/ 40.2 dBf
total harmonic distortion mono	0.5% (65 dBf input)
total harmonic distortion stereo	0.7% (65 dBf input)
signal to noise ratio mono	75 dB (65 dBf input)
signal to noise ratio stereo	68 dB (65 dBf input)
stereo separation	40 dB
selectivity	70 dB (±400 kHz)
frequency response	30 Hz ~ 15kHz, +0.5 dB, –3.0 dB

AM Tuner Specifications

tuning frequency range	530 kHz ~ 1, 700 kHz (10 kHz step)
usable sensitivity	16 µV / (600 µV/m)
signal to noise ratio	50 dB (30% mod. 1 mV input)

General Specifications

power consumption	2.6 A
dimensions width	440 mm (17-5/16")
dimensions height	144 mm (5-11/16")
dimensions depth	399 mm(15-11/16")
weight	8.8 kg (19.4 lb)

Digital Audio Specifications

sampling frequency	32 kHz, 44.1 kHz, 48 kHz, 96kHz
input level/impedance/wave length optical	(-15 dBm ~ -21 dBm), 660 nm ±30nm
input level/impedance coaxial	0.5 Vp-p / 75 Ω