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PDF GDR-8162B Data sheet ( Hoja de datos )
| Número de pieza | GDR-8162B | |
| Descripción | DVD-ROM DRIVE SERVICE MANUAL | |
| Fabricantes | LG | |
| Logotipo |  |
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DVD-ROM DRIVE
SERVICE MANUAL
MODEL: GDR-8162B
MODEL : GDR-8162B
P/NO : 3828HS1038E
June, 2003
Printed in Korea
1 page  
LOCATION OF CUSTOMER CONTROLS
FRONT VIEW
COMPACT
RRROOOMMM
1 23
4
(1) Disc Drawer
Accepts a CD-ROM/DVD-ROM disc on its tray.
(2) Busy Indicator
The Busy Indicator lights during initialization and data-
read operations.
(3) Emergency Eject Hole
Insert a paper clip here to eject the drawer manually or
when there is no power.
(4) Open/Close/Stop Button
This button is pressed to open or close the CD tray.
If an audio CD is playing, pressing this button will stop
it, and pressing it again will open the tray.
BACK VIEW
12 3
4
5
(1) Digital Audio Output Connector
This connector is not supported.
(2) Analog Audio Output Connector
The Audio Output Connector connects to a sound
card.
(3) Master/Slave/CSEL Jumper
These three jumpers are used to set the DVD-ROM
Drive to either a Master, Slave, or CSEL device.
(4) Interface Connector
This 40-pin connector is used to transfer data and
control signals between the DVD-ROM Drive and your
PC.
(5) Power-in Connector
Attach a power cable from the computer to this
connector.
5
5 Page 
3. Structure of the Photo Diode (DVD-ROM)
da
(As seen from light
c b receiving side)
1) Focus Error Signal –> (a+c) - (b+d)
• In case of DVD Disc
This signal is generated in RF AMP IC (IC101) and controls the pick-up’s up and down to
focus on DVD Disc.
2) Tracking Error Signal (DPD Method) –> Differential phase of A and B + Differential
phase of C and D
• In case of DVD Disc
This signal is generated in RF AMP IC (IC101) and controls the pick-up’s left and right shift to find the track
on DVD Disc.
3) RF Signal –> (a+b+c+d)
• In case of DVD Disc
This signal is converted to DATA signal in DSP IC (IC201).
Pick-Up module
Photo Diode
Red laser
Focusing
Tracking
16
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet GDR-8162B.PDF ] | |
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