Technics SAEX 310 Service Manual

Page 2

SA-EX310

I Specifications

I FM Tuner Section

Frequency range 87.50 7 108.00 MHz
Sensitivity
SIN 30 dB 1.5 pV/7552
SIN 26 dB 1.3 pV/7552
SIN 20 dB 1.2 pV/7552
IHF usable sensitivity 1.5 uV / 75$) (IHF 58)
IHF 46 dB stereo quieting sensitivity 22 uV/
7551
Total harmonic distortion
MONO 0.2%
STEREO 0.3%
SIN
MONO 60 dB (75 dB, IHF)
STEREO 58 dB (71 dB, IHF)
Frequency response 20Hz i 15 kHz (+1dB, 72dB)
Alternate channel selectivity 1 400 kHz 65 dB
Capture ratio 1 dB
Image rejection at 98MHz 40 dB
IF rejection at 98MHz 70 dB
Spurious response rejection at 98MHz 70 dB
AM suppression 50 dB
Stereo separation 1kHz 40 dB
Carrier leak
19kHz -30 dB (-35 dB, IHF)
IF rejection ( at 999 kHz ) 55 dB
I Amplifier Section
Power output (at 240 V)
DIN 1 kHz (T.H.D. 1%) 2 X 60 W(4§1)
40 Hz-20 kHz continuous power output
both channels driven 2 X 40 W(8£1)
Total harmonic distortion
Rated power at 40 Hz - 20kHz 0.8 % (851)
Half power at 1 kHz 0.07 % (852)

Power output at the Dolby Pro Logic operation
DIN 1kHz (T.H.D. 1 %)

Front 2 X 50 W (4!!)

Center 50 W (852)

Surround 50 W (89)
Damping factor 30 (851)
Load impedance

Front 4 - 16 9

Center 8 - 16 Q

Surround 4 - 16 0

Power bandwidth both channels driven, -3 dB 10 Hz - 40 kHz (8!!)
lntermodulation distortion rated

power at 60 Hz : 7 kHz = 4:1, SMPTE 0.5 % (89)
Frequency response

PHONO RIAA standard curve(30Hz-15kHz) 10.8 dB

CD, TAPE, VCR, TVIDVD 10Hz 7 40kHz, :3 dB
Input sensitivity and impedance

PHONO 3mV/47 k0

CD, TAPE, VCR, TVIDVD 200 mV I 22 kn
SIN at rated power ( SQ )

PHONO 70 dB (IHF, A: 80 dB)

CD, TAPE, VCR, TVIDVD 75 dB (IHF, A: 85 dB)

I Protection Circuitry

The protection circuitry may have operated if either of the follow-
ing conditions are noticed:

- No sound is heard when the power is turned on.
- Sound stops during a performance.

The function of this circuitw is to prevent circuitry damage if, for
example, the positive and negative speaker connection wires
are shorted, or ifspeaker systemswith an impedance less than

38kHz -50 dB (-55 dB, IHF)
Channel balance (250 Hz - 6.3 kHz ) 11.5 dB
Limitting point 1.2 uV
Bandwidth
IF amplifier 180 kHz
FM demodulator 1000 kHz
Antenna terminal(s) 7552 (unbalanced)
I Video Section
Output voltage at 1V input (unbalanced) 1:0.1 Vp-p
Maximum input voltage 1.5 Vp-p
Input/output impedance 75 Q (unbalanced)
I AM Tuner Section
Frequency range AM
(9 kHz steps) 522 7 1611 kHz
( 10 kHz steps ) 530 i 1620 kHz
Sensitivty 20 uV, 330 uV / m
Selectivity ( at 999 kHz ) 55 dB
Image rejection ( at 999 kHz ) 40 dB

Tone controls

BASS 50 Hz , +10 to -10 dB
TREBLE 20 kHz, +10 to -10 dB
Output voltage
TAPE REC (OUT), VCR OUT 200 mV
Channel balance (250 Hz - 6.3 kHz) :1 dB
Channel separation 55 dB
Headphones output level and impedance 430 mV/33OQ
Subwoofer frequency responce 7 7100 Hz, 1 3 dB
I General
Power consumption 160 W
Power supply
E , EG AC 230 V, 50 Hz
EB AC 230 - 240 V, 50 Hz
Dimensions ON x H x D) 430 x 136 x 309 mm
Weight 7.3 kg
Notes :

1. Specifications are subject to change without notice.
Weight and dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum

the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:

1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.

Note:
When the protection circuitry functions, the unit will not operate
unless the power is first turned off and then on again.