Specifications; General Specifications; Electrical Features; Cautions At Service - Samsung Ts-H552B Service Manual

Specifications

1. General Specifications

- Drive type : Computer built-in
- Power consumption : DC +5V, 1.5A
- Dimensions : 148.2mm (W)X184mm (L)X42mm (H)
- Net Weight : 760g

2. Electrical Features

- Interface : ATAPI BUS (IDE)
- Data transfer rate :
CD
Write (CD-R)
1,200KB/sec ( 8X), 2,400KB/sec (16X)
3,600KB/sec (24X), 4,800KB/sec (32X)
6,000KB/sec (40X)
Write (CD-RW)
600KB/sec ( 4X), 1,500KB/sec (10X)
2,400KB/sec (16X), 3,600KB/sec (24X)
4,800KB/sec (32X)
Read (CD-ROM) 6,000KB/sec (MAX : 40X)
7,200KB/sec (MAX : 45X)
DVD
Read (DVD-ROM) 16,200KB/sec(16X)
Write (DVD+R) 21,600 KB/sec(16X)
Write (DVD-R) 16,200 KB/sec(12X)
Write (DVD ± RW) 5,400 KB/sec(4X)
Write (DVD+R DUAL LAYER) 3,240 KB/sec(2.4X)

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) This tool is essential to check actions after installing
PC hardware (Basically, CPU-Pentium 100MHz,
if writing, more than 166MHz, or, if using Powered DVD,
more than CPU-PentiumⅡ233MHz), 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.
DC +12V, 1.5A
Read (DVD-ROM) 16,200KB/sec (12X)
-ACCESS TIME
-(CD-ROM) :1/3 STROKE : Below 130ms
FULL STROKE : Below 210ms
-(DVD-ROM) : 1/3 STROKE : Below 140ms
FULL STROKE : Below 230ms
- Buffer Capacity : 2MB
- Error ratio : Mode 1: Below 10
Mode 2: Below 10
- Frequency response : 20Hz~20KHz (Line out)
- Signal to noise ratio : 70dB (1KHz, Lime out)
- Distortion factor : 0.15% Less than (1KHz)
- Channel separation : Line out : 65dB (1KHz)
- Used laser : Semiconductor laser
- Audio Output : Line out 0.7 ± 20% (vrms), 47KΩ
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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