Technics SEA 7 Service Manual

Page 1

ORDER NO SD81092032CS

Service Manual r

Stereo DC Power Amplifier

* SE A7(K

[,,5]w [E,G] [5K] [55],
[[EH],[ EB],[Ei ], [XA],[XL]

Areas

" [D] is available in Scandinavia.

" [EW] is awilable in Switzerland.

" [E0] is available in F.R. Germany.

[EK] is available in United Kingdom.

[EF] is available in France.

(EH) is available in Holland.

[EB] is available in Belgium,

[El] is available in Italy.

" The black type model is provided with [XA] is available in Southeast Asia, Oceania, Africa, Middle
(K) in the Service Manual. Near East and Central South America.

" The colors of this model is black type only. " [XL] is available in Australia.

English

SpeCIflcat Ions (Specifications are subject to change without notice for further improvement.l

(DIN 45 500)
I AMPLIFIER SECTION lntermodulation distortion
rated power at 250 Hz: 8 kHz 4:1, 40 0.007%
rated power at 60 Hz: 7 kHz: . . SMPTE, 80 0.003%
TIM (Transient lntermodulation Distortion)

20 sz20 kHz continuous power output
stereo operation

both channels driven 2 X 60W (40) immeasurably small
2 3/. saw (30) Power bandwidth
monaural (BTL) operation 120W (80) both channels driven, 3 dB 5 Hz~70 kHz (0 02%)
4D Hz~16 kHz continuous power output Residual hum and noise 0.2 mV
stereo operation Damping factor 50 (40), 100 (80)
both channels driven 2 X 60W (49) Input sensitivity and impedance 1 V/47k0
2x50w (80) S/N 100 dB (110 dB, lHF, A)
monaural (BTL) operation 120W (SQ) Frequency response 20 HZ~20 kHz, +0 dB, *0 1 dB
1 kHz continuous power output 07 Hz~200 kHz, 3 dB
stereo operation Channel balance, 250 Hz'v6,300 Hz 41 dB
both channels driven 2 X 75W (49) Channel separation, 1 kHz 65 dB
2 X 65W (80) Headphones output level and impedance 520 mV/3300
monaural (BTL) operation 150w (80) Load impedance
Total harmonic distortion stereo operation
rated power at 20 Hz~20 kHz MAN 0" REMOTE 40c'160
stereo operation 0.007% (40) MAIN and REMOTE 80-460

0.003% (80) monaural
monaural (BTL) operation 0.007% (8(2) MAIN or REMOTE GQAVTSQ
rated power at 40 Hz~16 kHz I GENERAL
stereo operation 0.007% (40)

0-003% (50) Power consumption 420W
monauml (BTL) operation 0 007% (80) Power supply AC 50 Hz/60 Hz, 110V/120V/220V/240V
rated power a! 1 kHz Dimensions (wxnxn) 430 x 53 x 365 mm
stereo operation 0.007% (40) (1645/16 x 23/32 X 1443/8")

0003 (80) Weight 9.8 kg '
monaural (BTL) operation 0.007% (80) [21.6 lb ) -
halt power at 20 Hz~20 kHz 0.0015% (80)
halt power at 1 kHz 0.0006% (80) Note:

"26 13 power 8' 1 kHz 003% (40) Total harmonic distortion is measured by the digital spectrum
50 mw power at 1 RH! 003% (40) analyzer (HP. 3045 system)

Matsushita Electric Trading Co., Ltd.

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TeChnlCS PO Box 288, Central Osaka Japan

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