Prology DMD-170 Service manual

CarAudio

DMD170

TABLEOFCONTENTS

Page

TechnicalSpecifications....................................................1-2

Measurementsetup....................................................1-3

ServiceAids,SafetyInstruction,etc....................1-4to1-5

Preparations&Controls.....................................1-6to1-8

Maintenance&Troubleshooting..................................1-9

DisassemblyInstructions&Servicepositions..................2

SetBlockdiagram.........................................................3

SetWiringdiagram........................................................4

KeyBoard.....................................................................5

ServoBoard..................................................................6

MainBoard...................................................................7

SetMechanicalExplodedview&partslist........................8

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SPECIFICATIONS

1-2

General

Powersupply:

Maximumpoweroutput:
Continuouspoweroutput:
Suitablespeakerimpedance:
Pre-Ampoutputvoltage:
Fuse:
Dimensions(WxHxD)
Weight:
Aux-inLevel:
Sub-out:

FMStereoRadio

Frequencyrange:

Usablesensitivity:
Frequencyresponse:
Stereoseparation:
Imageresponseratio:
IFresponseratio:
Signal/noiseratio

12VDC(11V-16V)
Testvoltage14.4V,negativeground
45Wx4channels
20Wx4channels(4,10%T.H.D.)
4-8ohm

4.0V(CDplaymode:1KHz,0dB,10Kload)
15A
178x50x166mm

1.7kg
300mV

≥

4.0V

87.5-108.0Mz(EUROPEMODE)

87.5-107.9Mz(USAMODE)
10dB

μ

30Hz-15kHz()
30dB(1kHz)
50dB
70dB
>55dB

Ω

Ω

H

H

3dB

Components

Mountingcollar
MachinescrewsM5x6mm
Mountingbolt(50mm)
Wireconnector
Removablefaceplatecase
Trimplate

-key

L

Operatinginstructions
Rubbercushion
Remotecontrol

1
4
1
1
1
1
2
1
1
1

DiscPlayer

System:
Frequencyresponse:
Signal/noiseratio:
Totalharmonicdistortion:
Channelseparation:

Discdigitalaudiosystem
20Hz-20kHz
>80dB
Lessthan0.20%(1kHz)
>60dB

Video:

10.2V

videooutput:
horizontalnesowtiou:

Note:Specificationsanddesignaresubjecttochange

withoutnoticeforproductimprovements.

±

500lines

≥

MEASUREMENTSETUP

TunerFM

1-3

Bandpass

250Hz-15kHz

e.g.712270748001

LFVoltmeter

e.g.PM2534

S/Nanddistortionmeter

e.g.SoundTechnologyST1700B

RFGenerator

e.g.PM5326

DUT

Useabandpassfiltertoeliminatehum(50Hz,100Hz)anddisturbancefromthepilottone(19kHz,38kHz).

TunerAM(MW,LW)

RFGenerator

e.g.PM5326

DUT

Frameaerial

e.g.712270789001

Bandpass

250Hz-15kHz

e.g.712270748001

LFVoltmeter

e.g.PM2534

S/Nanddistortionmeter

e.g.SoundTechnologyST1700B

ToavoidatmosphericinterferenceallAM-measurementshavetobecarriedoutinaFaradayscage.
Useabandpassfilter(oratleastahighpassfilterwith250Hz)toeliminatehum(50Hz,100Hz).

CD

UseAudioSignalDiscSBC429482239730184
(replacestestdisc3)

DUT

L

R

S/Nanddistortionmeter

e.g.SoundTechnologyST1700B

LEVELMETER

e.g.SennheiserUPM550

withFF-filter

'

HANDLINGCHIPCOMPONENTS

GENERAL DISMOUNTING MOUNTING

e.g.WELLER
SoldertipPT-H7

SOLDERWICK
482232140042

CHIP

SOLDER

COMPONENT

GLUE

SOLDER

COPPERTRACK

P.C.B

SOLDERWICK

1-4

VACUUMPISTON

SOLDERING
IRON

SOLDERING
IRON

e.g.APAIROFTWEEZERS

HEATINGHEATING

SOLDERING
IRON

482239510082

CLEANING

A

B

C

e.g.APAIROFTWEEZERS

SLODER

Φ0.5-0.8mm

SLODERING

IRON

SLODERINGTIME
<3secretary/side

PRESSURE

Φ0.5-0.8mm

PRESSURE

EXAMPLES

SOLDER

SLODERING

IRON

A

B

SERVICEPACKAGE

SOLDERING
IRON

SOLDERING
IRON

PRECAUTIONS

CORRECT

COPPERTRACK

CHIPCOMPONENT

CORRECT

SOLDERING
IRON

NO！

GB

WARNING

AllICsandmanyothersemi-conductorsare
susceptibletoelectrostaticdischarges(ESD).
Carelesshandlingduringrepaircanreducelife
drastically.

Whenrepairing,makesurethatyouare
connectedwiththesamepotentialasthemass
ofthesetviaawristwrapwithresistance.
Keepcomponentsandtoolsalsoatthis
potential.

F

ATTENTION

TouslesICetbeaucoupd'autres
semi-conducteurssontsensiblesaux
dechargesstatiques(ESD).
Leurlongevitepourraitetreconsiderablement
ecourteeparlefaitqu'aucuneprecautionn'est
prisealeurmanipulation.
Lorsdereparations,s'assurerdebienetrerelie
aumemepotentielquelamassedel'appareilet
enfilerlebraceletsertid'uneresistancede
securite.
Veilleracequelescomposantsainsiqueles
outilsquel'onutilisesoientegalementace
potentiel.

1-5

ESD

D

WARNING

AlleICsundvieleandereHalbleitersind
empfindichgegenuberelektrostatischen
Entladungen(ESD).
UnsorgfaltigeBehandlungimReparaturfallkan
dieLebensdauerdrastischreduzieren.
VeranlassenSie,dassSieimReparaturfalluber

einPulsarmbandmitWiderstandverbunden
sindmitdemgleichenPotentialwiedieMasse
desGerates.
BauteileundHilfsmittelauchaufdiesesgleiche
Potentialhalten.

NL

WAARSCHUWING

AlleIC'senveleanderehalfgeleiderszijn
gevoeligvoorelectrostatischeontladingen
(ESD).
Onzorgvuldigbehandelentijdensreparatiekan
delevensduurdrastischdoenverminderen.
Zorgervoordatutijdensreparatieviaeen
polsbandmetweerstandverbondenbentmet
hetzelfdepotentiaalalsdemassavanhet
apparaat.
Houdcomponentenenhulpmiddelenookop
ditzelfdepotentiaal.

AVVERTIMENTO

I

TuttiICeparecchisemi-conduttorisono
sensibiliallescarichestatiche(ESD).
Lalorolongevitapotrebbeesserefortemente
ridattaincasodinonosservazionedellapiu
grandecauzioneallaloromanipolazione.
Duranteleriparazionioccorrequindiessere
collegatoallostessopotenzialechequellodella
massadell'apparecchiotramiteunbraccialetto
aresistenza.
Assicurarsicheicomponentieanchegliutensili
conqualisilavorasianoancheaquesto
potenziale.

ATTENTIONGB

Safetyregulationsrequirethatthesetberestoredtoitsoriginal
conditionandthatpartswhichareidenticalwiththosespecified,
beused.

NL

Veiligheidsbepalingenvereisen,dathetapparaatbijreparatiein
zijnoorspronkelijketoestandwordtteruggebrachtendatonderdelen,
identiekaandegespecificeerde,wordentoegepast.

F

LesnormesdesecuriteexigentqueI'appareilsoitremisaI'etat
d'origineetquesoientutiliseeslespiecesderechangeidentiques
acellesspecifiees.

D

BeijederReparatursinddiegeltendenSicherheitsvorschriftenzu
beachten.DerOriginalzustanddesGeratsdarfnichtverandertwerden;
furReparaturensindOriginal-Ersatzteilezuverwenden.

I

LenormedisicurezzaesigonocheI'apparecchiovengarimesso
nellecondizionioriginaliechesianoutilizzatiipezzidiricambio
identiciaquellispecificati.

Pourvotresecurite,cesdocuments
doiventetreutilisespardesspecia­listesagrees,seulshabilitesareparer
votreappareilenpanne.

CLASS1

LASERPRODUCT

GB

Warning!

Invisiblelaserradiationwhenopen.
Avoiddirectexposuretobeam.

S

Varning!

Osynliglaserstralningnarapparatenaroppnadochsparren
arurkopplad.Betraktaejstralen.

SF

Varoitus!

Avatussalaitteessajasuojalukituksenohitettaessaoletalttiina
nakymattomallelaserisateilylle.Alakatsosateeseen!

312211003420

Afterservicingandbeforereturningsettocustomerperforma
leakagecurrentmeasurementtestfromallexposedmetalpartsto
earthgroundtoassurenoshockhazardexist.Theleakagecurrent
mustnotexceed0.5mA.

DK

Advarse!

Usynliglaserstrlingvedabningnarsikkerhedsafbrydereer
udeaffunktion.Undgaudsaettelseforstraling.

a

PREPARATIONS

WiringDiagram

1-6

Purple

Black
Stripe

RightSpeaker

()Rear

Antenna

()Yellow

()Green

R(Red)

L(White)

GrayGreenPurple/

Black
Stripe

RightSpeaker

(Front)

Video-out

Subwooferout

Aux-in

White/

WhiteGray/

Black

Stripe

LeftSpeaker

(Front)

Yellow

Black

Blue

Red

Green/

Black
Stripe

LeftSpeaker

ISOConnector

Tocarbattery(+)
Continuous+12VDC

GroundLead

Motor/ElectricAntennarelaycontrolLead
AmplifierrelaycontrolLead
Ignitionkey

+12VDCWhenON/ACC

(Rear)

FilterBox

Fuse15A

Connector

RearLine-out(Gray)

FrontLine-out(Brown)

ForsomeVW/AudiorOpel(Vauxhall)
carmodels,youmayneedtomodify
wiringofthesuppliedpowercordas
illustrated,orelsethememoryofthe
unitmaybelostafteryoupoweroff.
Contactyourauthorizedcardealer
beforeinstallingthisunit.

Originalwiring

Yellow Yellow

Red

Modifiedwiring

YellowYellow

Red

R(Red)

L(White)

R(Red)

L(White)

Red

Red

Amplifier

UsingtheISOConnector

1.IfyourcarisequippedwiththeISOconnector,thenconnecttheISOconnectorsasillustrated.

2.ForconnectionswithouttheISOconnectors,checkthewiringinthevehiclecarefully
incorrectconnectionmaycauseseriousdamagetothisunit.
Cuttheconnector,connectthecoloredleadsofthepowercordtothecarbattery,
codetablebelowforspeakerandpowercableconnections

ConnectorConnector

beforeconnecting,

asshowninthecolour

1-7

CONTROLS

PowerON/OFF:Presstoturntheuniton.Longpresstoturntheunitoff.

RemoteSensor

PowerON/OFF

PanelOpen

Pushonceormore

VOLUME/BASS/

BALANCE/FADER,Rotate

thecontroltoadjustlevel

TREBLE/

Rotatethecontrolto

adjustvolumelevel

Radio

Aux-in

DiscPlay

(whendiscinserted)

toselect

PUSHSEL

DN

DN

VOL

VOL

UP

UP

SRCMUT

Presstoapresetstation

listento

Holdformorethan2secondsto

storestation

RPT3RDM

INT

1

2

4

DiscPlayback

P/NR/L

56

DISPBAND

AMS

BandSwitch

AMS

Discslot:insertdisc

forplaybackhere.

Tofastsearchwithin

atrack/skiptonext

FM1

FM2

FM3

OIRT

RadioTune

orprevioustrack

DiscEJECT

POP/SOFT/BEAT

LoudnessSwitch

RadioAutopreset

RadioPresetscan

Note:

PressingtheRESETholewillerase
theclocksettingandstoredstations.

RESETHOLE

REMOTECONTROLS

PowerOn/Off:Presstoturnon/offtheunit.

1-8

Zoom(only)DVD/VCD

Title(DVDonly)

Poweron/off

Setup

Enter

Program

DigitArea

AudioModeSelect

Vol/Bas/Tre/Bal/Fad

Pushmorethan2seconds

toMenumode

Volume

Mute

RadioTune

TrackSkip/Seek

SETUP

PROG

1

ABC

4

JKL

7

TUV

0

+-_

VOL

MUTE

-

TITLEZOOM

SUB.T

ENTER

2

DEF3GHI

5

PQRS

MNO

8

WXYZ

SPACE

SEL

10+

VOL+

BAND

SEEK+

SEEK

Subtitle(DVDonly)

Radio

SRC

REPEAT

ABMenucursor

GOTO

6

MENU

PBC

9

OSD

AUDIO

DISP

ANGLE

P/N

REPEAT:Title\chapter\disk\track\index

PBC(forVCD2.0orup)

VideosystemPAL/NTSC/AUTO

Aux-in

DiscPlay

(whendiscinserted)

A-Brepeat

Stop/Return

Play/Pause

GotoSearch

DVDMENU

ONScreendisplay

Audio(DVDonly)

ONPaneldisplay

Angle(DVDonly)

Radioband

Replacingthelithiumbatteryofremotecontrolunit.

*Whentheoperationrangeofthecardremote

controlbecomesshortornoProperly,replace
thelithiumbatterywithanewone.Makesure
thebatterypolarityreplacementiscorrect.

1.Pulloutthebatteryholderwhilepressingthestopper.

2.Insertthebutton-typelithiumbatterywiththe
markfacingupward.

Insertthebatteryholderintothe

remotecontrol.

(CR2025)

(+)

WARNINGS:

Storethebatteryinplacewherechildrencannotreach.
Ifachildaccidentallyswallowsthebattery,
consultadoctorimmediately.
Donotrecharge,short,disassembleorheatthebattery
ordisposeitinafire.
Doinganyofthesethingsmaycausethebatterytogive
offheat,crackorstartafire.
Donotleavethebatterywithothermetallicmaterials.
Doingthismaycausethebatterytogiveoffheat,crack
orstartafire.
Whenthrowingawayorsavingthebattery,wrapitintape
andinsulate;otherwise,thebatterymaystarttogiveoff

heat,crackorstartafire.
Donotpokethebatterywithtweezersorsimilartools.
Doingthismaycausethebatterytogiveoffheat,crack
orstartafire.

1-9

MAINTENANCEANDTROUBLESHOOTING

Maintenance

Clearingdisc

Whenadiscbecomesdirtycleanitwithacleaningcloth.
Wipethediscfromthecenterout.

Cleaningthedisclens

Afterprolongeduse,dirtordustmayaccumulateatthelens.Toensuregoodplaybackquality,cleanthediscwithPhilipsCDlens

Cleaneroranycommerciallyavailablecleaner.Followtheinstructionssuppliedwithcleaner.

CleaningtheheadsandtheTapeParts

Toensuregoodplaybackquality,cleantheheadsA,thecapstanB,
andpressurerollerCafterevery50hoursoftapeoperation.Used
acottonswabslightlymoistenedwithcleaningfluidoralcohol.
Youcanalsocleantheheadsbyplayingacleaningtapeonce.

Troubleshooting

Ifyoususpectsomethingiswrong, immediatelyswitchpoweroff.Immediatelystopusingitandcallthestorewhereyoupurchasedit.

Nevertrytorepairtheunityourselfbecauseitisdangeroustodoso.

General

Nopoweror

nosound

Disc

Discisinsidebut

nosound.

Discsoundskips,

tonequalityislow.

Soundskipsdue

tovibration.

Car'sengineswitchisnoton.

Turnyourcar'skeytoACCorON.

Cableisnotcorrectlyconnected.

Checkconnection.

Fuseisburnt.

Checkvolumeormuteon/off.

Iftheabovesolutionscannothelp,

PresstheRESETbutton.

Discisupsidedown.

Placediscinthecorrectdirection,
andthelabelsideup.

Discisdirtyordamaged

Cleandiscorchangeanotherdisc.

Discisdirtyordamaged.

CleanCDorchangeanotherCD.

Mountingangleisover30o.

Adjustmountingangletolessthan30.

Unstablemounting.
Mounttheunitsecurelywiththe
mountingparts.

Replacefuse.

Radio

Muchnoisein

broadcasts

Presetstation

lost

Stationistoofar,orsignalsaretooweak.

Selectotherstationsofhighersignallevel.

Batterycableisnotcorrectlyconnected.

Connectthebatterycabletothe
terminalthatisalwayslive.

ErrorDisplayMessages

Discisdirty,damagedorupsidedown.

Presstoejectthedisc.

Nodiscintheunit.

Insertdiscsintotheunit.

o

Whenvideofile

initializingtime

istoolong

Filereaderrororfiletypenotsupported.

PressSRCtoexit.ThenpressSRCto
playdiscagain.

DISMANTLINGINSTRUCTIONS

2-1

2-1

1Pullouttheshortsheetfrommainset.

Loosen8pcsscrew
toremoveheatsink&
TopCover&Bottom
Cover.

R

2emovetopandbottomcovers.

4 RemoveCDloader

Remove2pcsscrew
frommetalside.

Remove2pcsscrew
frommainboard.

Remove1pcsscrew
frommetalside.

3Loosen4pcsscrewtoremoveFrontCabinet.

Remove1pcsscrew
fromFrontCabinet.

Remove1pcsscrew
ontheleftsideof
FrontCabinet.

Remove2pcsscrew
todismantlethedeck.

PulloutFPC
wire.