Kenwood DM-3090 Service Manual

How to remove the sled motor/loading motor
(See Fig. 11-1)
1. Remove the screws (D1) x 1 pcs., and remove the sled
motor/loading motor.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
Figure 11-1
Figure 11-2
Figure 11-3
How to remove the spindle motor
(See Fig. 11-2)
1. Remove the screws (E1) x 3 pcs., and remove the spidle
motor.
Caution:
Be careful so that the turntable is not damaged.
How to remove the optical pickup
(See Fig. 11-3)
1. Remove the screws (F1) x 3 pcs.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
Sled Motor
Loading
Motor
(D1)x2
Ø1.7x2mm
(D1)x2
Ø1.7x2mm
Spindle Motor
Turntable
(E1)x3
Ø1.7x2.5mm
Optical Pickup
(F1)x3
Ø1.7x9.5mm
DM-3090
6
DISASSEMBLY FOR REPAIR
DM-3090(K) COVER 97.11.29 0:18 AM y[W 11

Kenwood DM-3090 Specifications

Digital Audio Performance

frequency response (playback mode)	8 Hz ~ 20 kHz, ± 1 dB
signal to noise ratio (playback mode)	More than 100 dB
wow & flutter	Less than unmeasurable limit

Analog Specifications

analog input sensitivity / input impedance	0.5V / 22 kΩ or more
analog output level/output impedance	2.0 V / Less than 2 kΩ
headphone output	15 mW/32 Ω load

Digital Input/Output

digital input coaxial	0.5 Vp-p / 75 Ω
digital input optical	- 15 dBm ~ - 21 dBm
digital output optical	- 15 dBm ~ - 21 dBm

General Specifications

power consumption	17 W
dimensions width	440 mm (17 - 5 / 16”)
dimensions height	94 mm (3 - 11 / 16”)
dimensions depth	300 mm (11 - 13 / 16”)

Weight

weight	3.55 kg (7.9 lb)