Pioneer DR-944 User manual

Max.40XCAVATAPI

CD-ROMDRIVEUNIT

DR-944/DR914

OperatingInstructions

Pioneer Electronic Corporation

OB-U0192

StandardFeatures

•Internal5.25inchHalf-HeightCD-ROMDrive

•ATAPIInterface(SFF-8020)

•Max.40XDataTransfer

17.5X(innersideofadisc)to40X(outersideofadisc)maximum,28.8X(average)

•PowerTrayLoading

•ConformstoMPCLevel3specifications

•LowVibrationMechanism

•HighSpeedAccess: AccessTime 70msec(RandomAverage)

•HighSpeedSeek : SeekTime 60msec(RandomAverage)

•BufferMemorySize: 128kBytes

•IDEDataTransferMode

SupportsPIOMode4&DMAMultiWordMode2,UltraDMA33

•SupportsKODAKPhotoCD

•SupportsSingleandMulti-Session

•SupportsCD-XAReady

•SupportsCD-IReady

•SupportsCDExtra

•SupportsVideoCD

•SupportstoreadCD-RWdisc

•SupportsPowerSaveMode

•StereoAnalogAudioLineOutput

•DigitalAudioThroughATAPI(ReadCD/DA)

•HeadPhoneOutput&VolumeControlKnob (FrontPanel)

•Horizontal/VerticalOperation

•ForcedEjection

OB-U0192

NameofParts/Function/Setting

FrontPanel

1. DiscTray

Trayloading-unloadingisdonebypressingtheejectbutton.

PlacetheCD-ROMontothetraywiththelabelfacingup.

Placeadiscontotheinnerlowergrooveonthetrayincasean8cmdiscisused.

Presstheejectbuttonorpushthefrontpartofthetraygentlytoloaddisctray.

2. Head-PhoneJack(PHONES)

Stereominijackforhead-phone.

Adjust “VolumeControlKnob”minimumpositionbeforehead-phoneisconnected.

Theaudiooutputofrearpanelisactiveevenwhenhead-phoneplugisinsertedtothisjack.

3. VolumeControlKnob(Head-PhoneLevel)

Thisisthevolumecontrolknobforadjustingsoundlevelforhead-phone.

Whentheknobisturnedtotheright,thehead-phonevolumegoesup,andturnedtotheleft,the

volumegoesdown.

4. BUSYIndicator

Itislitwhendataonthediscisaccessed.

5. EjectButton

Thisbuttonisusedtoloadandunloadthetray.

6. ForcedEjectionHole

Whenadiscisstackedinthedriveandtheejectbuttondoesnotworktoopenthetray,insertastiffrod

intothisholeandpushgentlysothatthetraycomesout.Unloadthetraybyhandthenremovethedisc.

DonotusetheForcedEjectHoleexceptemergencycase,usetheejectbuttoninnormaloperation.

Beforeexecutingthisoperation,turnoffthepowersupplyandwaitmorethan1minutetilldiscrotationis

stopped.

NameofParts/Function/Setting

OB-U0192

RearPanel

1. DC Input

Name

Function

+12

Powersupplyinputof DC+12V

Ground

Powersupplyinputof DC+5V

2. ATAPI Interface

ItshouldbeconnectedwiththeEnhanced-IDEportofthecomputer.Use40pinflattypecable.

Lengthofthecableislessthan18inchs(46cm)accordingtotheATAspecifications.

Itmaycausedatatransfererror,iflongercablemorethanabovevalueisused.

Name

RESET-

DD3

DMARQ

INTRQ

GND

DD12

GND

IOCS16-

DD7

DD2

DIOW-

DA1

DD8

DD13

GND

PDIAG-

DD6

DD1

DIOR-

DA0

DD9

DD14

GND

DA2

DD5

DD0

IORDY

CS1FX-

DD10

DD15

CSEL

CS3FX-

DD4

GND

DMACK-

DASP-

DD11

(KEYPIN)

GND

Remarks:Theminussignindicatesactivelow.

OB-U0192

NameofParts/Function/Setting

3. DeviceConfigurationJumper

Switchturnsonbyinsertingshortsocket.

Makesurethatdrivepoweristurnedoffbeforejumpersettingischanged.

OnlyMAis “on”atthetimeofshippingfromtheplant.

Name

Function

Thedriveisusedin

MasterMode

Thedriveisusedin

SlaveMode

Using “CableSelect”function.

Reserved

4. AudioOutput

Aconnectorforoutputofanalogaudio.

This connector is compatible with “Molex 70553”, choose a connection cable which matches with the

connector.

Name

Function

Leftchannelaudiooutput

Ground

Rightchannelaudiooutput

OB-U0192

Specifications

1. DiscFormat

•CD-ROM Mode1

•CD-ROM XA Mode2 (form1, form2)

•PhotoCD(singleandmultiplesession)

•VideoCD(4.4x–10x)

•CD-DA(4.4x–10xatAudioPlay,8.8x–20xatReadCD-DA)

•CD-Extra

•CD-RW(readonly,4.4x–10x)

•CD-IReady

2. DiscSize

•12cm

•8cm (4Xatdatadisc,Horizontaloperationonly)

PrecautionsonplayingCDsingles(8cmdiscs)

An8cmdisccanbeplayedonlywhenthedriveishorizontalconditionandthediscissetinthe

8cmgrooveonthedisctrayatloading.

Donotuseanadapterfor8cmdiscinanyconditionsforthisdrive,ormalfunctionmayoccur.

3. Data Transfer Rate

Parameter

Min.

Typ.

Max.

Unit

Note

inner 2250 2415 2625 kBytes/sec

Sustained

outer 6000 kBytes/sec

Max.40XCAVMode

Burst 4.0 33.3 MBytes/sec

Maximumdatatransferrateisspecifiedwithadiscof1.2m/slinearvelocity.

4. Buffer Memory Size

•128kBytes

5. AccessTime/SeekTime

Parameter

Min.

Ave.

Max.

Unit

Note

AccessTime 70 140 msec Random Average

CD-ROMMode1Disc

RandomSeekTime 60 90 msec Random Average

FullStrokeSeekTime 160 300 msec

OB-U0192

Specifications

6. InitializingTime/StartingTime/FinishingTime

Parameter Specification Note

InitializingTime

Lessthan10sec The period from a disc is set in the drive t

ill it becomes

pauseconditionafterinitialization.

StartingTime

Lessthan10sec

The period from stop condition after

finishing

initializationtillitbecomespauseconditionbyexecuting

startcommand.

StopTime Lessthan7sec

The period from pause condition till disc rotation is

stoppedbyissuingstopcommand.

7. LoadingTime/UnloadingTime

Parameter Specification Note

LoadingTime Lessthan4sec The period from a disc starts loading till it is

clumpedin

thedrive.

UnloadingTime Lessthan4sec

The time of disc unloading with stop condition by

pressingtheejectbutton.

8. AudioCharacteristic

Item Specification Note

Lineout 0.7 ±0.1Vrms 10kohmLoad

Output level

HeadphoneOut

0.45 ±0.2Vrms

32ohmLoad

S/NRatio Lineout Over80dB JISA-Weighted

20kHzLPFON

ChannelSeparation Lineout Over65dB

FrequencyResponse Lineout 20Hz~20kHz +1/-3dB

THD

Lineout

Lessthan0.1%

1kHz0dB

20kHzLPFON

PioneerElectronicCorporation

4-1,Meguro1-chome,Meguro-ku,Tokyo153,Japan

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