Text preview for : Specification.pdf part of Samsung SD-616F_E- SD-616F_E-Service DVD ROM Drive.part3
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Specifications
1. General Specifications
- Drive type : Computer built-in - Power consumption : DC +5V, 2A DC +12V, 1A - Dimensions : 148.2mm(W)X202mm(L)X42mm(H) - Net Weight : 880g - ACCESS TIME - (CD-ROM) : 1/3 STROKE : Below 120ms FULL STROKE : Below 210ms - (DVD-ROM) :1/3 STROKE : Below 120ms FULL STROKE : Below 210ms - Buffer Capacity : 512KB - Error ratio : (CD-ROM) Mode 1 : Below 10-12 Mode 2 : Below 10-9 (DVD-ROM) Mode : Below 10-15 - Frequency response : 20Hz~20KHz (Line out) 100Hz~20KHz (H/P out) - Signal to noise ratio : 75dB(1KHz, Lime out) 65dB(1KHz, H/P out) - Distortion factor : 0.15% Less than(1KHz) - Channel separation : 65dB(1KHz, Limeout) - Used laser : Semiconductor laser - Audio Output : Line out 0.70 ±20%(vrms), 47K H/P out 0.60 ±20%(vrms), 33
2. Electrical Features
- Interface : ATAPI BUS(IDE) - Data transfer rate : CD/DVD Read(CD-ROM) - 7,200KB/S(MAX : 48X) Read(DVD-ROM) - 21,600KB/S(MAX : 10X)
Cautions at Service
1. General Items
1) Be careful not to have your eyes or a part of body touch withlaser diode at repair because this product uses laser diode. 2) Do not disassemble Pick-up at repair. If the laser diode is bad, replace the entire Pick-up. 3) Keep away from TV or other electrical units at repair to prevent influence from surrounding units. 4) If you replace the parts during repair, be sure to unplug the power cable before replacement. 5) If you insert a disc into the drive, be sure to load it corectly. 6) IThis tool is essential to check actions after installing PC hardware(more than CPU-Pentium ), using exclusive "Device Drive Instruction" supplied by CD, because this tool donsn't work, individually 7) This unit has many parts with features related to safety and especially, for essential parts, the importance is indicated on circuit diagram and part list. Be certain to use the parts with same specifications at replaing these parts.
2. Earthing cautions at handling Pick-up
- Because the laser diode in optical Pick-up is subject to get out of order due to the potential difference occurring by electricity load charged in clothes or bodies, observe the following earthing items at handling. 1) Body earthing(hand) : Be sure to wear a wrist strip with one side earthed.(Impedance : Below 104). It removes the electricity formed in body. 2) Work table earthing : Put the earthed conductive plate (Impedance : Below 104) such as copper plate on work table. 3) Cautions for clothes : Do not have any clothes touch with Pick-up because the electricity formed in clothes is destroyed easily.
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