Pioneer Computer Drive DR914 User Manual

Max. 40X CAV ATAPI  
CD-ROM DRIVE UNIT  
DR-944/ DR914  
Operating Instructions  
Pioneer Electronic Corporation  
 
OB-U0192  
Name of Parts/Function/Setting  
FrontPanel  
1 . Disc Tray  
Tray loading-unloadingisdonebypressingtheejectbutton.  
PlacetheCD-ROM onto the tray with thelabelfacingup.  
Place a disc onto the inner lower groove on the tray in case an 8cm disc is used.  
Press the eject button or push the front part of the tray gently to load disc tray.  
2 . Head-Phone Jack (PHONES)  
Stereomini jackforhead-phone.  
Adjust VolumeControlKnobminimum position before head-phone is connected.  
The audiooutputof rearpanelisactiveeven whenhead-phone plug is inserted to this jack.  
3 . Volume Control Knob  
(Head-Phone Level)  
This is the volume control knob for adjustingsound levelfor head-phone.  
When theknobisturned totheright, the head-phone volume goes up, and turned totheleft, the  
volume goes down.  
4 . BUSY Indicator  
Itislitwhendataonthediscisaccessed.  
5 . EjectButton  
This button is used toload and unload the tray.  
6 . Forced Ejection Hole  
Whena disc is stacked in the drive and the eject button does not work to open the tray, insert a stiff rod  
into this hole and push gently so that the tray comes out. Unload the tray by hand then remove the disc.  
Do not use the Forced Eject Hole except emergency case, use the eject button in normal operation.  
Before executing this operation, turn off the power supply and wait morethan 1minutetilldiscrotationis  
stopped.  
Name of Parts/Function/Setting  
3
 
OB-U0192  
Rear Panel  
1 . DC Input  
Pin  
1
Name  
+12  
G
Function  
Powersupplyinputof DC +12V  
Ground  
2
3
G
Ground  
4
+5  
Powersupplyinput of DC +5V  
2 . ATAPI Interface  
It should be connected with the Enhanced-IDEportofthecomputer. Use40pinflattypecable.  
Length of the cable is less than 18inchs(46cm) according to the ATA specifications.  
Itmay cause data transfer error, if longer cable more than above value is used.  
Pin  
1
2
3
4
5
6
7
8
Name  
RESET-  
GND  
DD7  
DD8  
DD6  
DD9  
DD5  
DD10  
DD4  
DD11  
Pin  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
Name  
DD3  
DD12  
DD2  
DD13  
DD1  
DD14  
DD0  
Pin  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
Name  
DMARQ  
GND  
DIOW-  
GND  
DIOR-  
GND  
IORDY  
CSEL  
Pin  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
Name  
INTRQ  
IOCS16-  
DA1  
PDIAG-  
DA0  
DA2  
CS1FX-  
CS3FX-  
DASP-  
GND  
DD15  
GND  
(KEYPIN)  
9
10  
DMACK-  
GND  
Remarks: The minus sign indicates active low.  
4
 
OB-U0192  
Name of Parts/Function/Setting  
3 . DeviceConfiguration Jumper  
Switch turns on by inserting short socket.  
Make sure that drive power is turned off before jumper setting is changed.  
OnlyMAis onatthetimeofshippingfrom theplant.  
Pin  
1
Name  
MA  
Function  
on The drive is used in Master Mode.  
on The drive is used in Slave Mode.  
2
3
4
5
SL  
CS  
on  
Using Cable Selectfunction.  
Reserved  
Reserved  
4 . Audio Output  
A connector for output of analog audio.  
This connector is compatible with Molex 70553, choose a connection cable which matches with the  
connector.  
Pin  
1
Name  
Function  
L
G
G
R
Leftchannelaudiooutput  
Ground  
2
3
Ground  
4
Rightchannelaudiooutput  
5
 
OB-U0192  
Specifications  
1. Disc Format  
·
·
·
·
·
·
·
·
CD-ROM Mode 1  
CD-ROM XA Mode2 (form 1, form2)  
Photo CD ( single and multiple session)  
Video CD (4.4x10x)  
CD-DA (4.4x – 10x atAudioPlay, 8.8x – 20x at Read CD-DA )  
CD-Extra  
CD-RW(read only, 4.4x –10x)  
CD-I Ready  
2. Disc Size  
·
·
12 cm  
8 cm (4X at data disc, Horizontal operation only)  
Precautions on playing CD singles(8cm discs)  
An 8cm disc can be played only when the drive is horizontal condition and the disc is set in the  
8cm groove on the disc tray at loading.  
Do not use an adapter for 8cm disc in any conditions for this drive, or malfunction may occur.  
3. Data Transfer Rate  
Parameter  
Min.  
2250  
Typ.  
2415  
Max.  
2625  
Unit  
Note  
inner  
Sustained  
kBytes/ sec  
Max. 40X CAV Mode  
outer  
6000  
33.3  
kBytes/ sec  
MBytes/ sec  
Burst  
4.0  
Maximum data transfer rate is specified with a disc of 1.2m/s linear velocity.  
4. Buffer Memory Size  
·
128 kBytes  
5. Access Time/ Seek Time  
Parameter  
Min.  
Ave.  
70  
Max.  
140  
Unit  
msec  
Note  
Random Average  
CD-ROM Mode1 Disc  
Access Time  
Random Seek Time  
Full Stroke Seek Time  
60  
90  
msec  
msec  
Random Average  
160  
300  
6
 
OB-U0192  
Specifications  
6. Initializing Time/ Starting Time / Finishing Time  
Parameter  
Specification  
Note  
The period from a disc is set in the drive till it becomes  
pause condition after initialization.  
Less than 10 sec  
Initializing Time  
The period from stop condition after finishing  
initialization till it becomes pause condition by executing  
start command.  
The period from pause condition till disc rotation is  
stopped by issuing stop command.  
Less than 10 sec  
Less than 7 sec  
Starting Time  
Stop Time  
7. Loading Time/ Unloading Time  
Parameter Specification  
Note  
The period from a disc starts loading till it is clumped in  
thedrive.  
Loading Time  
Less than 4sec  
Less than 4sec  
The time of disc unloading with stop condition by  
pressing the eject button.  
Unloading Time  
8. Audio Characteristic  
Item  
Specification  
Note  
Line out  
0.7 ±0.1 Vrms  
10 k ohm Load  
Output level  
Head phoneOut  
Line out  
0.45 ±0.2 Vrms  
Over 80 dB  
32 ohm Load  
JIS A-Weighted  
20kHz LPF ON  
S/ N Ratio  
Channel Separation  
Frequency Response  
THD  
Line out  
Over 65 dB  
Line out  
20Hz~20kHz  
Less than 0.1%  
+1/ -3 dB  
1kHz0dB  
20kHz LPF ON  
Line out  
Pioneer Electronic Corporation  
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153, Japan  
7
 

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