Technics SE-HDA710 User manual

ORDERNO. AD0008145C2

Amplifier

SE-HDA710

Colour

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

Areas

EB.......................Great Britain.

EG.......................Europe.

System:SC-HDA710

Because ofuniqueinterconnecting cables, whena

compact requires service, send or bring intheentire

system.

SPECIFICATIONS

Specification

Amplifier Section (Lowfrequencyside)

Power output

DIN100Hz, THD 1%, 4 both channels

driven:

2x12W

RMS 100Hz, THD 10%, 4 both channels

driven:

2x15W

Load impedance: 4

Amplifier Section (Mid Frequencyside)

Power output

DIN1kHz, THD 1%, 8 both channels

driven:

2x8W

RMS 1kHz, THD 10%, 8 both channels

driven:

2x10W

Total harmonicdistortion

Halfpower at1kHz8 : 0.09%

Load impedance: 8

S/N: 81dB

S/N(2VInput, Rated power output): 100dB

Amplifier Section (High frequencyside)

Power output

DIN10kHz, THD 1%, 4 . both channels

driven:

2x4W

RMS 10kHz, THD 10%, 4 both channels

driven:

2x5W

Load impedance: 4

Headphones

Jack type: 3.5mm STEREO

Load impedance: 16-32

General

Power consumption 115W

STANDBYcondition Normal:11W

Eco:0.9W

Power supply

[For(EG)area]: AC230V,50Hz

[For(EB)area]: AC230-240V,50Hz

Dimensions(WxHxD): 196x105.8x261mm

Weight: 3.6kg

Notes:

1.Design and specificationsare subjectto changewithout

notice.

2.Dimensionsand weightare approximate.

3.Total harmonicdistortion ismeasured bythedigital

spectrumanalyzer.

System/SC-HDA710:

Tuner:ST-HDA710, DVDAudio/Video Player:SL-HDA710,

Amplifier:SE-HDA710 , CassetteDeck:RS-HDA710, Speakers:

SB-HDA710 (Madein MAES.)

2000 Matsushita ElectricIndustrial Co., Ltd. / / All rights

reserved. Unauthorizedcopying and distribution isaviolation of

law.

1. Accessories

2. Before Repairand Adjustment

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

bothendsofpowersupplycapacitors(C102-105, 127) inorderto

dischargethevoltage.

2. Beforeturning thepowersupplyon, aftercompletion ofrepair,

slowlyapplytheprimaryvoltagebyusing apowersupplyvoltage

controllertomake surethat theconsumedcurrentat 50/60 Hzin

NO SIGNALmodeshouldbeshownbelowwithrespect tosupply

voltage230 V/240 V.

Areas (EG) (EB)

Powersupplyvoltage AC 230V AC 230-240V

Consumedcurrent 50 Hz 90-180 mA 50 Hz 90-180 mA

3. Aboutthe Protection Circuitry

The protection circuitrymayhave operatedifeitherof the following conditions is noticed:

*Nosound is heardwhenthe poweris supplied.

*Sound stops during a performance.

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

negative speakerconnection wires are “shorted”, orifspeakersystems with animpedande less

thanthe indicatedratedimpedance of thisunitare used.

Ifthis occurs, followthe procedure outlinedbelow:

1. Press theSTANDBY /ONbutton, switchtoSTANDBY mode.

2. Determinethecause oftheproblemand correct it.

3. Press theSTANDBY /ONbutton once again, supplythepower.

Note:

Whenthe protection circuitryfunctions, the unitwill not operate unless the STANDBY /ON

button is firstswitchedSTANDBYand thenON again.

4. Caution for ACMainLead

5. Operating Instructions

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 thepowersupply(1) P.C.B., powersupply(2)

P.C.B. and speakerterminal P.C.B.

-Check thepowersupply(1) P.C.B., powersupply(2) P.C.B. and

speakerterminal P.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) -(Step4) ofitem6.3.

7. Power Source ON/OFF and Signal Check

Tooperate this unitSE-HDA710 normally, itis necessaryforconnecting with the unitST-

HDA710. / Whenoperating the unitSE-HDA710, be sure to connectthe unitST-HDA710 by

connection cable.

1. Connect withtheTuner(ST-HDA710). (Asshownin Fig. 1 )

2. Connect theACmainsleadtoAmplifier(SE-HDA710). (Asshown

in Fig. 1 )

3. Connect thespeakerstospeakerterminal. (Asshownin Fig. 1 )

4. Turn on thepoweroftheAmplifier(SE-HDA710).

5. Press INPUTSELECTORtoselect theexternal source (EXT/MD) of

theAmplifier(SE-HDA710).

6. Inputasound signal toexternal inputterminal ofTuner(ST-

HDA710), and confirm tobeoutputtedfrom thespeaker. (Every

ranges of“High“, “Mid“ and “Low“.)

Fig. 1

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