Technics SA-EH760 User manual

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Service Manual
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AD0002037C2
Tuner/Amplifier
●SA-EH760
Colour
(S).....................Silver Type
Areas
(E).....................Europe.
(EB)..................Great Britain.
(EG)..................Germany, Italy, France, Netherlands and Denmark.
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© 2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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1 Before Repairs
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1. Turn off the power supply. Using a 10Ω, 10 W resistor, connect both ends of power supply
capacitors (C701, C703 and C702, C704) in order to discharge the voltage.
2. Before turning the power supply on, after completion of repair, slowly apply the primary voltage
by using a power supply voltage controller to make sure that the consumed current at 50 Hz in
NO SIGNAL mode should be shown below with respectto supply voltage 230/240 V.
Power supply voltage AC 230 V AC 240 V
Consumed current 50 Hz 100 ~ 350 mA
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2 Protection Circuitry
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The protection circuitry may have operated if either of the following conditions is noticed:
●No sound is heard when the power is switched ON.
●Sound stops during a performance.
The functions of this circuitry is to prevent circuitry damage if, for example, the positive and negative
speaker connection wires are shorted, or if speaker systems with an impedance less than the indicated
rated impedance of this unit are used.
If this occurs, follow the procedures outlined below.
1. Switch OFF the power.
2. Determine the cause of the problem and correct it.
3. Switch ON the power once again.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first switched OFF
and then ON again.
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3 Accessories
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●AC power supply cord for (E),(EG) area/(RJA0019-X)...........................1 pc.
●AC power supply cord for (EB) area/(RJA0053-2X).........................1 pc.
●AM loop antenna set/(RSA0022-J)...........................1 pc.
●FM indoor antenna/(RSA0007)..............................1 pc.
●Speaker cords/(REE0393)..............................2 pcs./(REE0984)..............................2
pcs./(REE0985)..............................2 pcs.
●Remote control transmitter/(RAK-EHA28WH).....................1 pc.
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●Remote control batteries/(R6/LR6,“AA”, UM-3)............2 pcs.
Note: These are available on sales route.
●Antenna plug adaptor for (EB) area only/(SJP9009)..............................1 pc.
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4 Caution for AC Mains Lead
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5 Location of Controls
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