Technics SE-HD350 User manual

AD0102036C2

Amplifier

SE-HD350

Colour

(N)...........GoldType

Areas

(E)...........Europe.

(EB).........Great Britain.

(EG).........Germany, Italy, France.

(EP).........Russia.

SPECIFICATIONS

Unauthorizedcopying and distribution isaviolation oflaw.

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1. Before Repair

1. Turn off thepowersupply. Using a10 , 10 Wresistor, connect

bothendsofpowersupplycapacitors(C601, C602) inorderto

dischargethevoltage.

2. Beforeturning thepowersupplyon, aftercompletion ofrepair,

slowlyapplytheprimaryvoltagebyusing apowersupplyvoltage

controllertomake surethat theconsumedcurrentat 50 HzinNO

SIGNALmodeshouldbeshownbelowwithrespecttosupply

voltage230/240 V.

Powersupply

voltage AC 230 V AC 240 V

Consumedcurrent

50 Hz 30 -140 mA

2. Protection Circuitry

The protection circuitrymayhave operatedifeitherof the following conditions is noticed:

-Nosound isheard whenthepowerissupplied.

-Sound stopsduring aperformance.

The functions of this circuitryis to prevent circuitrydamage if, forexample, the positive and

negative speakerconnection wires are shorted, orifspeakersystems with animpedance less

thanthe indicatedratedimpedance of this unitare used.

Ifthis occurs, followthe procedure outlinedbellow:

1. Press theStandby/on button, switchtostandbymode.

2. Determinethecause oftheproblemand correct it.

3. Press theStandby/on button once again, supplythepower.

Note:

Whentheprotection circuitryfunctions, theunitwill notoperate

unless theStandby/on button isfirst switchedStandbyand then

ONagain.

3. Accessories

-ACpowersupplycord for (E), (EG), (EP)areas

(RJA0019-1X)................................................1pc.

-ACpowersupplycord for (EB) area

(RJA0053-2X)................................................1pc.

-AMloop antennaset

(RSA0033B)...................................................1pc.

-FMindoor antenna

(RSA0007)......................................................1pc.

-Speakercords

(REE1057) (Red, Black)...............................2pcs.

-Remote control transmitter

(EUR7702010)..............................................1pc.

-Remote control batteries

(R6/LR6, AA, UM-3)......................................2pcs.

Note:These areavailableon sales route.

-Antennaplug adaptor for (EB) area

(SJP9009)......................................................1pc.

4. Caution for ACMains Lead

5. Location ofControls

6. Operation Checks and ComponentReplacement/

Procedures

-Thissection describes procedures for checking theoperation of

themajor printedcircuitboardsand replacing themain

components.

-For reassemblyafteroperation checks or replacement, reverse the

respectiveprocedures. Special reassemblyprocedures are

describedonlywhenrequired.

6.1. Checking for thepowersupplyP.C.B.

-Check thepowersupplyP.C.B. as shownbelow.

6.2. Checking for theoperation P.C.B.

-Followthe(Step1) -(Step3) ofitem6.1.

-Check theoperation P.C.B. as shownbelow.

6.3. Checking for themainP.C.B.

-Followthe(Step1) -(Step3) ofitem6.1.

-Check themainP.C.B. as shownbelow.

6.4. Replacementfor thepowerIC

-Followthe(Step1) -(Step3) ofitem6.1.

-Followthe(Step1) -(Step3) ofitem6.3.

7. To SupplyPower Source and Signal Check

Tooperate this unitSE-HD350 normally, itis necessaryto connectto the unitST-HD350. When

operating the unitSE-HD350, be sure to connectto the unitST-HD350 byconnection cable.

1. Connect withtheTuner(ST-HD350). Referto Fig. 7-1.

2. Connect theACpowersupplycord totheAmplifier/ (SE-HD350).

Referto Fig. 7-1.

3. Connect thespeakerstospeakerterminal. / Referto Fig. 7-1.

4. Turn on thepoweroftheAmplifier(SE-HD350).

5. Set INPUTSELECTERtoselect theexternal source (EXT)ofthe

Amplifier(SE-HD350).

6. Inputasound signal toexternal inputterminal oftheTuner(ST-

HD350), and confirm tobeoutputtedfrom thespeaker.

Fig. 7-1.

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