Kenwood KT-990D Service Manual

QUARTZ
SYNTHESIZER
AM-FM
STEREO
TUNER
KT-990D
SERVICE
MANUAL
© 1988-1 PRINTED IN JAPAN
B51-3435-00 (G) 2658
Knob
(POWER)
Metallic
cabinet
Front
glass
(K29-2724-04)
(AO
1-1577-01)
(B
10-0896-03)
Panel
assy
Escutcheon
(TUNING)
(A20-5
340-02)
(BO7-1755-04)
Knob
(PROGRAM)
Knob
(Button)
Knob
(Button)
Knob
(TUNING)
(K27-179
1-04)
(K27-1761-04)
x
6
(K27-1761-04)
X
3.
(K21-0409-04)
Antenna
holder
AC
inlet
*
(J19-0875-03)
(E03-0
102-25)
°
Screw
terminal
board
(3P)
Phono
jack
(2P)
(E20-03
18-05)
(E13-0235-05)
Foot Slide switch *
(JO2-0190-15) x 4 (S31-2094-05) x 2
* Refer to parts list on page 42.
AGHE

Kenwood KT-990D Specifications

FM Tuner Section

antenna impedance	75 ohms unbalanced
FM frequency range	87.5 MHz to 108 MHz
usable sensitivity (IHF)	10.8 dBf (0.95 μV)
50 dB quieting sensitivity (IHF)	16.2 dBf (1.8 μV)
stereo sensitivity	38.8 dBf (24.0 μV)
signal to noise ratio (IHF) Mono	92 dB (65 dBf input)
signal to noise ratio (IHF) Stereo	78 dB (65 dBf input)
frequency response	20 Hz to 15 kHz
total harmonic distortion Mono	0.007%
total harmonic distortion Stereo	0.009%

AM Tuner Section

frequency range	530 kHz ~ 1610 kHz
usable sensitivity (Loop)	10 μV (250 μV/m)
signal to noise ratio	55 dB
total harmonic distortion	0.25%
image rejection ratio (Loop)	40 dB
selectivity (IHF)	30 dB

General

power consumption	20 W
dimensions (W x H x D)	440 mm x 78 mm x 331 mm
weight	4.0 kg (8.8 lb)