Sony xe 90 mk2 service manual

Page 1

US Model
Canadian Model
AEP Model

E Model

SPECIFICATIONS

Center frequencies
50 Hz, 100 Hz, 200 Hz,
400 Hz. 800 Hz, 1.5 kHz.
3 kHz, 6 kHz, 12 kHz
Boost/cut range 1 12 dB
Sub-wooler cutoll lrequency
80 Hz, 120 Hz (at -3 dB)
Output gain: -m to +8 dB
(cut-0H slope -12 (18/04:!)
Frequency response
5 Hz-1oo ksztdB
Signal-to-noise ratio
More than 105 dB
(A-weighted)
Harmonic distortion (at 1 kHz)
Less than 0.005%

Gain 0 dB

General

Input Line inputs (phono jacks)
x 1

OUIput Line outputs (phono jacks)
x 3

Power requirements
12 V DC car battery
(negative ground)
Current drain 300 mA
Input remote current
4 mA
Mounting dimensions
178 x 25 x135 mm (wlhld)
(718 x 1 x 53/5 inches)
Weight Approx. 650 g (1 lb 7 02)
Accessories supplied
Mounting hardware (1 set)
Connecting cord (1 set)

FUSE REPLACEMENT

lithe luse blows, check the power connection
and replace the fuse. It the fuse blows again
alter replacement. there may be an internal
maltunction, in this case, consult your nearest
Sony dealer.

Warning
Use the specified ampere fuse. Use of a
higher amperage fuse may cause serious
damage

STEREll GRAPHIC EllllALIZER
SONE

Page 2

XE-90Mk11

TABLE OF CONTENTS Flexible Circuit Board Repairing

0 Keep the temperature of the soldering iron around

Section :21." .3135 270°C during repairing.
Specifications .............................. 1 0 Do not touch the soldering iron on the same conduc-
SECTION 1. GENERAL ....................... 2 t °f th mu m (min 3 me
0 Be careful not to apply force on the conductor when
SECTION 2. DIAGRAMS ...................... 6 soldering 01 unsoldering.
2-]. PRINTED WIRING BOARDS .......... 6
2-2 SCHEMATIC DIAGRAM .............. 9 New, on chip componem ,eplacemm
SECTION 3. EXPLODED VIEW ................ 12 . New "use a disconnected chip component
SECTION 4. ELECTRICAL PARTS LIST .......... 13 0 Notice that the minus side of a tantalum capacitor
may be damaged by heat.
SECTION 1
GENERAL
PARTS IDENTIFICATION
~- 1
r--- 2
,- 3
{SONY .. . . . . . . "mm
I'm-m E.M:W .:._:-1_':oI

EQUALIZER ON/OFF button [E FAD (Iader) control and indicator

[Z FREQ (sub-woofer cut-off
trequency) indicators

E] EC: (adjusting channel) selector
and indicator

E) sue WOOFER (sub-woofer level)
control and indicator

E] Equalizer controls and indicators

LISTENING P. (listening position)
selector and indicator

sua WOOFER ONIOFF button

)5) FREQUENCY 80/120 (sub-wooier
cut-0ft frequency) button