JVC KD-G501 Service Manual

(No.MA038)1-27
5.5 Signal processing section
No sound from either
channel.
Is 9V present at IC161 pin
31?
Compare the L-ch and
R-ch to locate the
defctive point.
Is the sound output from
both channels (L, R)?
Check the viciniyt of the
IC901 audio power
supply.
NO
NONO
NO
YES
YES
YES
YES
YES
Check IC581 and its
peripheral circuits.
Is the audio signal
(including sampling output
components) output to
IC581 pins 1 and 7 during
playback?
Is the audio signal output
at IC161 pins16 and 17
during playback?
NO
Check IC161 and its
peripheral circuits.
Check the muting circuit.
Normal

JVC KD-G501 Specifications

Audio Amplifier Specifications

maximum power output front	50 W per channel
maximum power output rear	50 W per channel
continuous power output front	19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion
continuous power output rear	19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion
load impedance	4 Ω (4 Ω to 8 Ω allowance)
tone control range bass	±10 dB at 100 Hz
tone control range treble	±10 dB at 10 kHz
frequency response	40 Hz to 20 000 Hz
signal-to-noise ratio	70 dB
line-out level/impedance	2.0 V/20 kΩ load (full scale)
output impedance	1 kΩ

CD Player Specifications

operating voltage	DC 14.4 V (11 V to 16 V allowance)
allowable operating temperature	0°C to +40°C
dimensions installation size	182 mm × 52 mm × 150 mm
dimensions panel size	188 mm × 58 mm × 12 mm
mass	1.4 kg (excluding accessories)
frequency response	5 Hz to 20 000 Hz
dynamic range	96 dB
signal-to-noise ratio	98 dB
max. bit rate	320 Kbps

Tuner Specifications

frequency range FM	87.5 MHz to 108.0 MHz
frequency range AM (MW)	522 kHz to 1 620 kHz
frequency range AM (LW)	144 kHz to 279 kHz
usable sensitivity FM	11.3 dBf (1.0 µV/75 Ω)
50 dB quieting sensitivity FM	16.3 dBf (1.8 µV/75 Ω)
alternate channel selectivity (400 kHz) FM	65 dB
frequency response FM	40 Hz to 15 000 Hz
stereo separation FM	30 dB
capture ratio FM	1.5 dB
sensitivity MW	20 µV
selectivity MW	35 dB
sensitivity LW	50 µV