Technics SA-DV290EE User manual

ORDERNO. AD0305100C8
Tuner/ Amplifier
SA-DV290EE / SA-DV290GN
Colour
(S).......................SilverType
System:SC-DV290
Because ofuniqueinterconnecting cables, whena
compact requires service, send orbring intheentire
system.
SPECIFICATIONS
Specification
1

Amplifiersection
Poweroutput(L/Rboth channel driven)
Stereo Mode
DIN 1kHzTHD 1%/6 (High) 2×25 W
100 HzTHD 1%/8 (Low) 2×45 W
RMS 1kHzTHD 10%/6 (High) 2×35 W
100 HzTHD 10%/8 (Low) 2×65 W
PROLOGICmode
DIN FRONT
1kHzTHD 1%/6 (High) 2×25 W
100 HzTHD 1%/8 (Low) 2×45 W
SURROUND 1kHzTHD 1%/8 2×30 W
CENTER1kHzTHD 1%/8 60 W
RMS FRONT
1kHzTHD 10%/6 (High) 2×35 W
100 HzTHD 10%/8 (Low) 2×65 W
SURROUND 1kHzTHD 10%/8 2×40 W
CENTER1kHzTHD 10%/8 80 W
PMPO1kHz/High 6 , Low8 ,
CENT. 8 , SURR. 8 3000 W
Total harmonicdistortion
Rated powerat1kHz 1%(6 )
Halfpowerat1kHz 0.1%(6 )
Load impedance
FRONT(High) 6
FRONT(Low) 8
SURROUND 8
CENTER 8
DIGITAL S. WOOFER
Centerfrequency 60 Hz
LEVEL (VOL -20 db) MID+3 db
MAX+6 db
FMtunersection
Frequencyrange 87.50—108.00 MHz
(0.05 MHzsteps)
Sensitivity 1.8V(IHF usable)
S/N26 db 1.5V
S/N
MONO 70 db (75 db, IHF)
Antennaterminal(s) 75 (unbalanced)
AMtunersection
Frequencyrange 522—1629 kHz(9kHzsteps)
520—1630 (10 kHzsteps)
Sensitivity(S/N20 db) 500 V/m
Timersection
Clock Quartz-lock type
Function Playtimer(1time, daily),
2

Function
Play
timer
(
1
time,
daily),
Rec timer(1time, daily)
Sleep (120 min, 30 min intervals)
Setting intervals(Play/Rec) 1 minute—23 hours59 minutes
(1min intervals)
General
Powersupply
(For(GN)area) AC230—240V50Hz
(For(EE) area) AC230V50Hz
Powerconsumption 230 W
Standby 0.5W
Dimensions(W×H×D) 293×118.5×345 mm
Mass 5.3kg
Nots 1.Design and specificationsaresubjectto
changewithoutnotice.
2.Dimensionsand weightareapproximate.
3.Total harmonicdistortion ismeasured bythe
digital spectrumanalyzer.
System/SC-DV290
Sound processor:SH-DV290, DVD/ Video CD/ CD
changer:SL-DV290, Tuner/ Amplifier:SA-DV290 ,
CassetteDeck:RS-DV290, Speakers:Front*(SB-
DV290),Center* (SB-PC95),Surround*(SB-PS95)
(*Madein MESA.)
1. Accessories
-ACmainsleadfor(EE)areas
(RJA0019-2X)....................1pc.
-ACmainsleadfor(GN)area
3

(RJA0035-2X)....................1pc.
-Remote control for(EE)area
(EUR7702290)....................1pc.
-Remote control for(GN)area
(EUR7702300)....................1pc.
-Remote control batteries
(R6/LR6,”AA”,UM-3)....................1pc.
Note:These areavailableon sales route.
4

-FMindoorantennafor(EE)area
(N1EAYY000002)....................1pc.
-FMindoorantennafor(GN)area
(N1EAYY000001)....................1pc.
-AMloop antennaset
(N1DAEYA00008)....................1pc.
-Speakerleads
(REE1234-1)....................2pc.
(Red/Black)
(REE1233-1)....................2pc.
(Gray/Blue)
5

-Videocord
(K2JA2A000018)....................1pc.
-RCAJadaptorfor(EE)area
(K1JZ24D00002)....................1pc.
2. BeforeRepairand Adjustment
1. Turnoff thepowersupply. Using a10 , 10Wresistor, connect
bothendsofpowersupplycapacitors(C701-704) inorderto
dischargethevoltage.
2. Beforeturning thepowersupplyon, aftercompletion ofrepair,
slowlyapplytheprimaryvoltagebyusing apowersupplyvoltage
controllertomake surethat theconsumedcurrentat 50 HzinNO
SIGNALmodeshouldbeshownbelow withrespectto
supplyvoltage230 V/240 V.
Areas (EE) (GN)
Powersupplyvoltage AC230V AC230-240V
Consumedcurrent 50 Hz 130-380 mA 50 Hz 130-380 mA
3. About the Protection Circuitry
Theprotection circuitrymay have operatedifeitherofthefollowing conditionsisnoticed:
6

*Nosound isheard whenthepowerissupplied.
*Sound stopsduring aperformance.
Thefunctionsofthiscircuitryistopreventcircuitrydamage, for example, thepositive and
negative speakerconnection wires are“shorted”, or ifspeakersystemswithanimpedandeless
thantheindicatedratedimpedance ofthisunitareused.
Ifthisoccurs, followtheprocedureoutlinedbelow:
1. Press theSTANDBY /ONbutton, switchtoSTANDBYmode.
2. Determinethecause oftheproblemand correct it.
3. Press theSTANDBY /ONbutton once again, supplythepower.
Note:
Whentheprotection circuitryfunctions, theunitwill notoperateunless theSTANDBY /ON
button isfirstswitchedSTANDBYand thenONagain.
4. Operating Instructions
5. Operation Checks and Component Replacement
Procedures
-Thissection describes procedures forchecking theoperation of
themajorprintedcircuitboardsand replacing themain
components.
-Forreassemblyafteroperation checks orreplacement, reverse the
respectiveprocedures. Special reassemblyprocedures are
describedonlywhenrequired.
5.1. Checking fortheACINP.C.B.
-Check theACINP.C.B. as shownbelow.
7

5.2. Checking fortheoperation P.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
-Check theoperation P.C.B. as shownbelow.
5.3. Checking forthemainP.C.B.
8

-Follow the(Step1) -(Step3) ofitem5.1.
9

-Check themainP.C.B. as shownbelow.
5.4. Replacementfortheregulatortransistor
10

-Follow the(Step1) -(Step3) ofitem5.1.
5.5. ReplacementforthepowerIC
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step6) ofitem5.2.
-Follow the(Step1) -(Step10) ofitem5.3.
11

6. Self-DiagnosticFunction
Thisunitequippedwithaself-diagnosticfunction which, intheeventofamalfunction,
automaticallydisplays acodeindicating thenatureofthemalfunction.
Use thisself-diagnosticfunction whenservicing theunit.
6.1. To displaythemalfunction code
U70 DVD: Automaticallydisplays on the
U70 DECK:tuner/amplifierwhena
malfunction occurs. Referto
Fig. 6-1.
F61: Automaticallydisplays on the
tuner/amplifierwhena
malfunction occurs. Referto
Fig. 6-1.
Fig. 6-1
12

6.2. To returntothenormal display
1. ForU70 DVD/U70 DECK
-Press ananyoperation button on thetuner/amplifier.
-To re-displaythecode, switchthepoweroff (POWER
STANDBYbutton), and thenswitchpowerback on again.
2. ForF61
-IfF61 isdisplayed, thepowerwill automaticallybeswitched
off and thestandbyindicatorwill lightup.
-F61 will bedisplayedfor3seconds, and thentheclock will be
displayed.
-To re-displaythecode, switchthepoweron. F61 will bere-
displayed, and thenafter3secondstheclock will bedisplayed
and thepowerwill automaticallyswitchoff.
6.3. Displaycontents
6.3.1. U70 DVD, U70 DECK / (displayedautomatically)
-Problemorcondition
Abus-linecommunicationserrorhas occurredas aresultofthe
flat cables being insertedincorrectly, thuspreventing thesystem
fromoperating.
13

-IfU70 isdisplayedon thetuner/amplifier, theCassette deck orDVD
Changercannotbeoperatedbyremote control.
-Correction Procedure
1. To check forcorrect insertion oftheflat cables.
-Inserteachconnectorsuntil you hearaclick.
-Inserttheflat cables at theback oftheunitintheorder
indicated. RefertoFig. 6-2.
Make surethewhite sideofthecables ison yourrightside.
RefertoFig. 6-3.
Fig. 6-2.
Fig. 6-3.
2. Breakageoftheflat cables. (Check and replace.)
3. Iftheproblemisnotcorrectedbyitems1and 2above, this
indicates afaultyIC.
SA-DV290:
IC901 (C2BBFD000404)
SL-DV290:
IC401 (C2BBFD000402)
RS-DV290:
IC701 (M38503M2406F)
Check these ICsand replace.
6.3.2. F61
-Problemorcondition
Whenthepowerswitchisswitchedon, itautomaticallyswitches
back off, making itimpossibletoswitchpoweron.
14

-Correction procedure
FaultyTuner/Amplifier(SA-DV290) outputIC(IC601).
(WhenaDC voltageisappliedtospeakerterminals.)
7. ToSupplyPowerSource
ThisunitSA-DV290 isdesignedtooperateon powersuppliedform system connected.
For system connection, refertoFig. 7-1.
Fig. 7-1.
WhentheunitSA-DV290 has totestand service alone, use thefollowing method tosupplypower
source.
1. Shortthesection betweenW902APin3and C740 (-) (GND). (Refer
toFig. 7-2.)
2. Connect thisunittoanACpowersupplycord.
(Thisunitcometostand-bymode.)
3. TurntheunitON.
Fig. 7-2.
15

Notes:
Use onlythismethod whenchecking thevoltageetc..
Incase ofchecking operations, use thesystem connectionstosupplypowersource.
8. SchematicDiagramNotes
8.1. TypeIllustration ofIC's, Transistorsand Diodes
8.2. SchematicDiagramNotes
-Thisschematicdiagrammaybemodifiedat anytimewiththe
developmentofnew technology.
Notes:
-S901:PowerStandby/on ( )switch.
-S902:Clock/timer(CLOCK/TIMER)switch.
-S903:Demo(-DEMO)switch.
-S904:Playtimer/recordtimer( PLAY/ REC)switch.
-S905:FMmode(FMAUTO/MONO)switch.
-S906:Tuning mode(TUNING MODE)switch.
-S907:Set (SET)switch.
-S908:Source input(INPUTSELECTOR)switch.
-S909:Echo (ECHO)switch. For[GN]area.
-S910:Tuning (TUNING, )switch. For[EE]area.
S910:Tuning (TUNING,,)switch. For[GN]area.
-S911:Tuning (TUNING, )switch. For[EE]area.
S911:Tuning (TUNING,,)switch. For[GN]area.
-S912:Tuner/band (TUNER/BAND)switch.
16

-S913:Digital superwoofer(DIGITALS. WOOFER)switch.
-S914, 915:RDSdisplaymode(RDS, PS-DISP, MODE-PTY)switches.
For[EE]area.
S914, 915:KARAOKE, Voice mute (KARAOKE, V.MUTE)switch.
For[GN]area.
-S916:Keycontrol (KEYCON)switch. For[GN]area.
-S917:MICeffect (MICEFFECT, LOUNGE)switch. For[GN]area.
-S918:MICeffect (MICEFFECT, CHORUS)switch. For[GN]area.
-VR901:MainvolumeV.R..
-Indicatedvoltagevalues arethestandardvalues fortheunit
measuredbytheDC electroniccircuittester(high-impedance)with
thechassistakenas standard. Therefore, theremayexist some
errorsinthevoltagevalues, depending on the
internalimpedanceoftheDC circuittester.
Nomark:PowerON
-Importantsafetynotice:
Components identifiedbymarkhavespecial characteristics
importantforsafety.
Furthermore, special parts whichhavepurposes offire-retardant
(resistors), high-qualitysound (capacitors), low-noise (resistors),
etc. areused.
Whenreplacing anyofcomponents, besuretouse only
manufacture'sspecifiedparts shownintheparts list.
Caution!
-Secondarytroublecanbepreventedbytaking careduring repair.
-ICand LSI aresensitivetostaticelectricity.
-Covertheparts boxes madeofplastics withaluminumfoil.
-Ground thesoldering iron.
-Putaconductivemat on theworktable.
-DonottouchthelegsofICorLSI withthefingersdirectly.
-Voltageand signal lines
:Positivevoltageline
:Negativevoltageline
:Audiosignal line
:Tunersignal line
:MICsignal line
17

9. SchematicDiagram
10. Printed Circuit BoardDiagram
11. Block Diagram
12. Wiring Connection Diagram
13. Terminal Function of ICs
13.1. IC901 (C2BBFD000404):SystemControl/FL Drive
Pin
No.
Terminal
Name
I/O Function
1CHECK I Clock check signal input
2 LC72 DO O PLL datasignal outputfor
tunerunit(Z101)
3LC72 CE O Chipenablesignal output
for tunerunit(Z101)
4LC72 DI/
ST
IIFcountdata/stereodetect
signal inputfrom tunerunit
(Z101)
5LC72 CK O Clock signal outputfor
tunerunit(Z101)
6ST/
AV.6CH
OSignal selectoutput
7NC — Notused, open
8
9SEL
TUNER
—Notused, open
10 SEL/
TUNER
—Notused, connectedtoGND
11 ACIN I Powerfailuredetectsignal
input
12 RESET I Resetsignal input
13 X IN I Oscillator connected
terminal (32.7kHz)
14 X OUT O
15 VSS —GND terminal
16 XCIN I Oscillator connected
terminal (6MHz)
17 XCOUT O
18 VDD 1 I Powersupplyterminal
19 KEYTU I Operation key signal input
20 KEY
KARAOKE
IOperation key signal input
18

Pin
No.
Terminal
Name
I/O Function
21 SHREQ O Requestsignal outputto
Sound Processor
22 NC(GND) — Notused, connectedtoGND
23 VR
JOGB
IVolumecontrol signal input
24 VR
JOGA
25 MICDET I Microphoneconnecting
detectsignal input(Not
used, connectedtoVDD )
26 HP SW I Headphoneconnecting
detectsignal input
27 RDS
CLK
IRDS clock signal input
28 RDS
DATA
IRDS datasignal input
29 REMOCON IRemotecontrol signal input
30-
37
8G-1G O Gridsignal output
38-
45
P1-P8 O Segmentsignal output
46 VDD 3 I Powersupplyterminal
47-
50
P9-P12 O Segmentsignal output
51 -VP I Powersupplyterminal
(Negative)
52-
71
P13-P32 O Segmentsignal output
72 VDD 4 I Powersupplyterminal
73-
78
P33-P38 O Segmentsignal output
79 REGIN0 — Notused, connectedtoGND
80 REGIN1
81 STANDBY OLED(STANDBY)drive
signal output
82 TIMER O LED(TIMER) drive signal
output
83 S.W.LED O LED(DIGITALS.WOOFER)
drive signal output
84 LOUNGE — LED(LOUNGE)drive signal
output(Notused,
connectedtoGND)
19

Pin
No.
Terminal
Name
I/O Function
85 CHORUS — LED(CHORUS)drive signal
output(Notused,
connectedtoVDD )
86 MUTE O Muting signal output
87 NC — Notused, oppen
88 POWER O Powercontrol signal output
89 VSS 2 — GND terminal
90 VDD 2 I Powersupplyterminal
91 MUTE2 O Muting signal output
92 NC — Notused, open
93 MUTE3 O Muting signal output
94 SHCS I/O Chipselectsignal for Sound
Processor
95 SHDO O Serial communication
signal toSound Processor
(Datasignal output)
96 SHDI I Serial communication
signal toSound Proccessor
(Datasignal input)
97 SHCK I Serial communication
signal toSound Processor
(Clock signal input)
98 E DET I Unusual condition detect
signal input
99 CR
TIMER
—Notused, open
100 SD I Station detector signal
inputfrom tunerunit(Z101)
14. Replacement PartsList
Notes:
*Importantsafetynotice:
Components identifiedbymarkhavespecial characteristics
importantforsafety. / Furthermore, special parts whichhave
purposes offire-retardant(resistors), high-qualitysound
(capacitors), low-noise (resistors), etc. areused. /
Whenreplacinganyofcomponents, besuretouse only
manufacture'sspecifiedparts shownintheparts list.
*TheparenthesizedindicationsintheRemarks columnsspecifythe
areas. / Parts withoutthese indicationscanbeusedforall areas.
20