Technics ST-HD501 Manuale utente

ORDERNO.AD9902016C2

Tuner

ST-HD501

Colour

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

Area

E.....................Europe, East Europeand Russia.

System:SC-HD501

SPECIFICATIONS

1. BeforeRepair

Thisequipment(ST-HD501), whichisacomponentofthesystem, issuppliedwithpowerfrom

theamplifier(SE-HD501).Whenrepairing thisequipmentor checking operation ofthesystem, be

suretoconnecttheamplifierwithit.

Powersupplyand operation check inthestateofitas asingleequipmenetareimpracticable.

2. Operating Instructions

3. About the Self-DiagnosticMode

Thisunitisepuippedwithaself-diagnosticfunction which, intheeventofamalfunction,

automaticallydisplays acodeindicating thenatureofthemalfunctions.Use thisself-diagnostic

function whenservicing theunit.

4. PowerSource ON/OFF and Signal Check

TooperatethisunitST-HD501 normally, itisnecessaryfor connecting totheunitSE-HD501.

Whenoperating theunitST-HD501, besuretoconnecttheunitSE-HD501 withincluded

connection cable.

1. Shortthesection betweenthejumper(J210), TP302 (A.GND)and

(J212)(D.GND), and as well as thesection betweenthejumper

(J403), TP303(CT)and (J212)(D.GND).(Asshownin Fig.1.)

2. Connect withtheAmplifier(SE-HD501).(Asshownin Fig.1.)

3. Connect theACmainsleadtoAmplifier(SE-HD501).(Asshownin

Fig.1.)

4. Connect thespeakerstospeakerinputterminal.(AsshowninFig.1.)

5. Turnon thepoweroftheAmplifier(SE-HD501).

6. Press INPUTSELECTORtoselect theexternal souce (EXT/MD)of

theAmplifier(SE-HD501).

7. Inputasound signal toexternal inputterminal ofTuner(ST-

HD501), and confirm tobeoutputtedfromthespeaker.

Fig.1

5. Operation Checks and Component Replacement

Procedures

6. Wiring Connection Diagram

7. Block Diagram

8. SchematicDiagramNotes

8.1. SchematicDiagramNotes

-Thisschematicdiagrammaybemodifiedat anytimewith

developmentofnew technology.

Notes:

-S601:Band select (FM/AM)switch.

-S602:Displaymodeselect (RDSDISPLAYMODE)switch.

-S603:FMmodeselect (AUTO/MONO)switch.

-S604:Tuning mode(TURN MODE)switch.

-S605:Tuning/timeadjust ( )switch.

-S606:Tuning/timeadjust ( )switch.

-S607:Set (SET)switch.

-S608:Clock/timer, demo(CLOCK/TIMER/-DEMO)switch.

-S609:Recordtimer( REC)switch.

-S610:Playtimer( PLAY)switch.

-Indicatedvoltagevalues arethestandardvalues fortheunit

measuredbytheDC electroniccircuittester(high-impedance) with

thechassistakenas standard. Therefore, theremayexist some

errorsinthevoltagevalues, depending on theinternal impedance

oftheDC circuittester. /

Nomark:FMmode

(): AMmode

Importantsafetynotice:

Componentsidentifiedbymarkhave special characteristics impotantfor safety.

Furthermore, special partswhichhave purpose offire-retardant(resistors), high-qualitysound

(capacitors), low-noise (resistors), etc. areused. Whenreplacing anyofcomponents, besureto

use onlymanufacturer’sspecifiedpartsshowninthepartslist.

Caution!

ICand LSIaresensitive tostaticelectricity.

Secondarytroublecanbepreventedbytaking careduring repair.

Coverthepartsboxes madeofplastics withaluminum foil.

Ground thesoldering iron.

Putaconductive maton theworktable.

DonottouchthelegsofICor LSIwiththefingersdirectly.

Voltageand signal line

:Positive voltageline

:FMsignal line

:AMsignal line

:Negative voltageline

:FMOSCsignal line

:AMOSCsignal line

8.2. TypeIllustration ofTransistorsand Diodes

8.3. Diagram

9. Printed Circuit BoardDiagram

10. Terminal Function of IC’s

-IC302 (M62433AFP):DIGITALSOUND CONTROL

No. Mark I/O/

Division Function

1PS-IN O R/Loutputterminal for

surround

2PS+IN I Phase shift filterinput

terminal for surround (Not

used, open)

3KIN1 O Key control adaptor output

terminal (Notused, open)

4KOUT1 I Key control adaptor input

terminal / (Notused,

connectedtoGND)

5TAPEREC1 O Rec signal outputterminal

from / surround mixamp.

terminal

6MDREC1 O Selectcommon outputrec

signal / outputterminal

7EXT

OUT1

8DPL1 I Tonesignal inputterminal

(Notused, connectedto

GND)

9F1F1 I Resonance impedance

connect/ terminal (Not

used, open)

10 F1O1 O Resonance bufferamp

outputterminal / (Notused,

open)

11 FIN1 I Resonance bufferamp

inputterminal / (Notused,

open)

12 F2F1 I Resonance impedance

connect/ terminal

13 F2O1 O Resonance bufferamp

outputterminal

14 F2IN1 I Resonance bufferamp

inputterminal

15 F3F1 I Resonance impedance

connect/ terminal

16 F3O1 O Resonance bufferamp

outputterminal

17 F3IN1 I Resonance bufferamp

inputterminal

18 F4F1 I Resonance impedance

connect/ terminal

19 F4O1 O Resonance bufferamp

outputterminal

No. Mark I/O/

Division Function

20 F4IN1 I Resonance bufferamp

inputterminal

21 F5F1 I Band pass filterconnect

terminal / (Connectedto

GND through capacitor)

22 GEQOUT1 O Tonesignal outputterminal

23 VOLIN1 I R laddervolumeinput

terminal

24 VOLOUT1 ORladdervolumeoutput

terminal

25 BB1 — Bass boostcapacity

connection / terminal(Not

used, connectedtoGND)

26 BUFIN I Bass boostamp(+)input

terminal

27 BUFNF1 I Bass boostamp(-) input

terminal

28 BUFOUT1 OBass boostampoutput

terminal

29 PORTA O PortAoutputterminal (Not

used, open)

30 PORTB O PortBoutputterminal

31 DVDD IPowersupplyterminal

32 CLK I Clock inputterminal for

serial datatransfer

33 DATA I Control datainputterminal

34 LATCH I Latchsignal inputterminal

35 DGND — GND terminal

36 AVDD IPowersupplyterminal

37 BUFOUT2 OBass boostampoutput

terminal

38 BUFNF2 I Bass boostamp(-) input

terminal

39 BUFIN2 I Bass boostamp(+)input

terminal

40 BB2 I Bass boostcapacity

connection / terminal(Not

used, connectedtoGND)

41 VOLOUT2 ORladdervolumeoutput

terminal

42 VOLIN2 I R laddervolumeinput

terminal

43 GEQOUT2 O Tonesignal outputterminal

No. Mark I/O/

Division Function

44 F5F2 I Band pass filterconnect

terminal / (Connectedto

GND through capacitor)

45 F4IN2 I Resonance bufferamp

inputterminal

46 F4O2 O Resonance bufferamp

outputterminal

47 F4F2 I Resonance impedance

connect/ terminal

48 F3IN2 I Resonance bufferamp

inputterminal

49 F3O2 O Resonance bufferamp

outputterminal

50 F3F2 I Resonance impedance

connect/ terminal

51 F2IN2 I Resonance bufferamp

inputterminal

52 F2O2 O Resonance bufferamp

outputterminal

53 F2F2 I Resonance impedance

connect/ terminal

54 F1IN2 I Resonance bufferamp

inputterminal / (Notused,

open)

55 F1O2 O Resonance bufferamp

outputterminal / (Notused,

open)

56 F1F2 I Resonance impedance

connect/ terminal (Not

used, open)

57 DPL2 I Tonesignal inputterminal /

(Notused, connectedto

GND)

58 EXT

OUT2 OSelectcommon outputrec

signal / outputterminal

59 MD

REC2 O

60 TAPE

REC2 O Rec signal outputterminal

from / surround mixamp.

terminal

61 MICIN I Micsignal inputterminal /

(Notused, connectedto

GND)

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