Sony xec 1000 service manual

Page 1

SERVICE MANUAL

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U8 Model
Canadian Model
E Model

AEP Model

SPECIFICATIONS

Crossover frequency Mld FLAT, 60, 120, 180 Hz. 2.4 k, 35 k, 5 kHz
ngh 2.4 k1 3.5 k, 5 k, 7 kHz
Sub 50,80,120,180 Hz

Gain 0 dB
+6 dB (Sub-woofer)

Harmonic dlstorllon less than 0.003%

Signal-tonoise ratio more than 105 dB

Crosstalk more than 80 dB
Frequency response 3 Hz to 150 kHz cg dB)
Crossover slope -12 dB/oct

-18 dEl/oct (Subwoofer)
Mid cut -10 dB toOdB (180 Hz)

0 = 1, 3, 6

Maximum output level

+12 dB
Bass boost 0 to +10 dB (40 Hz)
General
Inputs Remote control input

Power input

Line Input (phonojack 6)
Outputs Line outputs (phone jack 10)
Power requirements 12 V DC car battery (negative ground)
Current drain 220 mA

Mounting dimensions
Approx. 260 x 40 x 200 mm (th/d)
(10% x15]. x 7]: Inches)
Weight Approx 1.3 kg (3 lb 15 oz)
Accessories supplied
Mounting screws (4)
Power connector cover (1)

Features

- * Linear phase filters (Bessel function type)
reallze natural and equal sound levels in and
around the passband frequency

. Hi-fi electrolytic capacitors especially
designed for dynamic sound reproduction

- Phase inversion switches for checking easily
a sound continuity between mid and high
range speakers

o 180 Hz mid cut controls with Q switches for
adjusting a low and mid-low sound

- 40 Hz bass boost control for dynamic bass
reproduction

* Linear phase filters (Bessel function type)

Most of the channel dividers currently available
employ ilat response iilters (Butterworth type). The
group delay characteristic of this type of filters is
much worse than that of the linear phase filters, and
this causes transient distortion in the audio signals at
each filters crossover frequency, To reduce that
distortion and to obtain his" sound, linear phase
filters (Bessel function type) are used for the
XEC-1000.

ELECTRUNIC CRUSSIIVER NETWORK

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