Sony xr 3491 service manual

Page 1

XR-3490/ 3491/ 3492/ XRS-BUUIAIL

SERVICE MANUAL AEP Model

XR-3490/3491
UK Model
XR-3491

E Model

XR-3490/XRS-600MK2

German Model
XR-3492

Photo : XRv3490

Model Name Using Similar Mechanism XR-3500/3501/3502

Tape Transport Mechanism Type MG-3GSZ6-32
The XR-3490/3491/3492, XRS-GOOMKZ has been chan-
ged in design of the front panel from the XR-3500/ AM (for the XR-3490/3492, XRS-GOOMKZ)
3501/3502. Tuning range. 53I - 1.502 kHz
The main sections of these models are the same as those mggfiggnggumy 2:533 men 2"
of the followmg models. Sensitivity 30 pV
Model With the MW/LW (for the XII-3491)
same main section Tuning range MW:531-1,602kHz
Lw :153- 281 kHz
XR-3490 XR-3500 Antenna terminal External antenna connector
XR»3491 XR-3501 :fixfiemwam :33;ng
XR-3492 XR-3502 '-W =th
XRS-GOOMKZ XR-3500 Power amplifier section
The differences are only described herein. ouPus (Ssierikgflémfmm
For other information, refer to the appropriate service Speaker impedance 4 -80th
manual for the XR-3500/3501/3502. Maximum power output 15 W x4 (at 4 ohms)
SPECIFICATIONS
_ -continued on next page-
Cassette player section
Tape track Attrack Z-channel stereo
Wow and flutter 0.13 Ia (WRMS)
Frequency response 30 - 16,000 Hz
Signal-tn- noise ratio SSdB
Tuner section - E E
FM
Tunin ran 2 875-1081) MHz
Ann-nan tefminfll External antenna connector XR'3490/3492/XRS'500MK2
Intermediate frequency 10.7 MHz
Usable sensitivity 12 dBf
5W W FM/MW/LW CASSETTE CAR STEREII
Signalvto-noise ratio 60 d5 (stereo),
65 dB (mono)
Harmonic distortion at I kHz xR-3491

06% (stereo),

0.4% (mono)
Separation 30 dB at i kHz
Frequency response 30 - 15,000 Hz ®

Capture ratio 4 dB

Page 2

General

Output lead Power antenna relay
control lead

Tone controls Bass :5 dB at 100 Hz
Treble :8 dB at 10 kHz

Power requirements 12 V DC car battery
(negative ground)

Dimensions Approx. 186 x 57 x 170 mm
(w/h/d) not incl.
projecting parts and
controls

Mounting dimension Approx. 182 x 53 x 154 mm
(w/ h/ d) not incl.
projecting parts and
controls

Mass Approx. 1.3 kg

Supplied accessories Parts for installation and
connections (1 set)
Front panel case ('I)

Design and specifications are subject to change without

notice

X RS-GOO M K2 :

Speaker Coaxial 2-way:

Woofer 16 cm, cone
WPe
Tweeter 5 cm, cone
type

Maximum input power 120 watts

Rated power 30 watts

Impedance 4 ohms

Sensitivity 91 dB/W/m

Frequency response 35 - 25,000 Hz

Mass Approx. 835 g per
speaker

Accessories supplied Mounting hardware
(I set)

Speaker cords (2)

Design and specifications subject to change
without notice.

Dimensions Unit mm
Dimensions Enidad: mm
Dimemltfl Unrdide' mm
Al vi w;- m
i- - 5 § 5
: t t
25.5
- Mounting depth
Pmfimdidad a: mic
Pym-mm. a. monugrm

ilflll

SECTION 1
GENERAL

This section is extracted from
XR-3490/3491's instruction manual.

Button Locations

Refer to the pages in O (or deuils.

[3] Display window
m so. (control mode mm) button 00

m osn (display mode ehangeltime m!
human 6

m c (cl-ct) button 9

[E SiEK/MANU bunon 60

m «I» (last wlndlng)lDIR(npn
transport dlrocrion clung.) bunom
90

m mus: («om panel nlnn) button
00

#1) (volumalhanltnbhl
balamlhder control) button 96

B] owing radlo reception:
Preset number buttons 0

During tape playbuk:
[I] an (Automatic Tun"
Activation) button 6
E Louo (loudness) button 6
IE] sms (sonsltivity adjust) button e

E2 YUNENAMEM (radio on - band meal
automatic memory) button 00

E3 OFF button 0