1.2 Block Diagram

 

 

 

 

CAV

 

 

 

 

AUDIO

VINP

ADC

Data

 

 

VINN

PLL

 

 

 

 

 

CD-ROM

 

 

 

 

 

 

 

 

Decoder

REXT

 

 

PRML

 

PTEST [2:0]

 

 

 

 

 

 

 

W1LPF[2:0]

 

 

 

CD-DSP

 

WPLL

Jitter

 

W2LPF[2:0]

 

Counter

 

 

WOBSIG

Wobble

LPP

 

 

Generator

Detector

 

DVD

 

 

 

 

 

 

PI-ECU

ADIPVR1

 

ADIP

 

 

ADIPVRT

ADC

 

 

Detector

 

 

ADIPINP

 

 

 

 

 

 

 

IP1LPPIN

 

 

 

DVD

IP2MIRR

 

 

 

PO-ECU

LOWZB

 

 

Demodulate

 

IDGATE

 

 

 

 

RFHLD

 

 

 

 

NRZI,NRZIB

LVDS

 

 

DCLK,DCLKB

 

 

 

 

 

 

WGATEB

 

 

 

 

WRGATE2

 

 

Modulator

 

SRFH

 

 

 

 

 

 

 

SRFL

 

 

 

CD

WRSTOP

 

 

 

 

 

 

CD-ROM

 

 

 

 

WBLSH

 

 

 

Encoder

 

 

Sample

 

MPDSH

 

 

 

 

 

 

DRAM

WFPDSH

 

 

Hold

RFPDSH

 

 

 

TCSHSPBLV

 

 

 

 

TLD

 

 

 

 

LDD

 

 

 

 

LED

 

 

 

 

SPD

 

 

 

 

LNDTRK

 

 

 

 

SFG

 

 

 

 

EFG

 

 

 

 

DERECT

 

 

Cmp

 

ATZC

 

 

 

 

 

 

 

BLANK

 

 

 

 

FE

 

 

 

 

PE

 

 

ADC

Servo

SIGM

 

 

 

 

 

TE

 

 

 

 

LPSA

 

 

ADC

 

 

 

 

 

 

 

 

 

SSEQ

FOD

 

 

 

 

DAVC

 

 

DAC

 

TRD

 

 

 

 

 

 

 

TVDP

 

 

DAC

 

TVDN

 

 

 

 

 

 

 

TCPH

 

 

 

 

TIBH

 

 

 

 

BCENT

 

 

 

 

FAD0(VRDC2N)

 

 

ADC

 

GAD1

 

 

 

 

AUDIO

LOUT

ROUT

 

DOUT

 

 

 

DREQ

 

DVD

 

 

DACKB

 

 

 

DASPB

 

Descramble

 

 

 

 

 

CS3FXB

 

 

 

 

 

 

 

 

CS1FXB

 

 

 

 

PDIAGB

 

 

 

 

DA2

 

DVD

ATAPI

 

DA1

 

 

DA0

 

 

 

 

Scramble

 

 

 

 

 

IOCS16B

 

 

 

 

 

 

 

 

HINTRQ

 

 

 

 

IORDY

 

 

 

 

ZIORB

 

 

 

 

ZIOWB

 

 

 

 

HRSTB

 

 

 

 

DATA [15:0]

 

 

 

ZCS

 

 

 

 

RD[15:0]

 

 

 

 

RA[12.10:0]

 

 

 

RAMCL

SDRAM

 

 

 

DWE

 

 

DRAM

16Mbit

 

 

DRAS

 

 

Interface

DCAS

 

 

 

 

DQMU

 

 

 

 

DQML

 

 

 

 

DCKE

 

 

 

Clock

 

XCI

 

 

 

XCO

 

 

Generator

 

 

 

 

 

FEMCK

 

 

Test

 

MRSTB

 

 

 

TESTB[1:2]

 

 

Control

 

 

 

 

 

TEST[3:0]

 

 

 

 

SCLK

 

 

 

 

SDATA

 

 

Serial I/F

 

RFDEN

 

 

 

 

WDEN

 

 

 

 

LDBUSY

 

 

 

CPWRB

 

 

 

 

CPRDB

 

UCS0B

 

 

A[20:0]

 

 

 

 

GPIO05(UCS1B)

 

MCIF

 

 

 

CPU[15:0]

 

CPRDB

 

 

 

 

 

UCS2B

 

CPWRB

 

 

UCS3B

 

A[20:1]

 

 

 

 

GPIO04(A[0])

MSEQ

 

 

 

CPU[15:0]

 

 

 

 

 

 

WAIT

 

GPIO06(CSEL)

 

 

 

GPIO07(HEATRUN)

 

 

ADGATEB

 

 

 

 

 

 

 

INT0B

H8S

ICUIN6(EJECTSW)

 

 

INT1B

 

 

 

 

 

INT2B

 

ICUIN7(ACTFLG)

 

 

FOK

 

 

 

 

 

 

 

INT3B

CPU

ICUIN8(LOADIN)

 

 

 

 

TRST(NMI)

 

 

 

 

TCK(SCK)

BCA

 

 

 

TDI(SCI)

 

 

 

TDO(SCO)

 

 

 

 

 

 

 

 

TMS

Auth

 

 

 

 

61

Page 57
Image 57
LG Electronics GSA-4168B, GSA-4165B, GSA-4167B service manual Vinp ADC

GSA-4167B, GSA-4165B, GSA-4168B specifications

LG Electronics has been a prominent name in the electronics industry, particularly known for its innovative optical storage solutions. Among its noteworthy products are the GSA-4167B, GSA-4165B, and GSA-4168B DVD writers, each showcasing a blend of advanced technology and user-friendly features tailored to meet diverse consumer needs.

The LG GSA-4167B stands out for its versatility and performance. This model supports a wide range of disc formats, including DVD-R, DVD+R, DVD-RW, DVD+RW, and dual-layer DVDs, enhancing its usability for various applications. With a generous writing speed of up to 16x for DVD+R and 8x for dual-layer DVDs, users can create and backup data efficiently. This device is equipped with LG’s Super Multi technology which allows it to read and write multiple formats, making it a perfect choice for users who wish to maximize their media experience without being restricted to a single format.

The GSA-4165B, though slightly older, remains popular due to its reliable performance and ease of use. This model also supports a wide array of formats and achieves impressive speeds comparable to its counterparts. With features such as Buffer Under Run Technology, the GSA-4165B minimizes interruptions during the burning process, reducing the risk of damaging data. Additionally, its sleek design makes it appealing for desktop setups, offering both aesthetics and practicality.

On the other hand, the LG GSA-4168B is known for its advanced capabilities, particularly in terms of burning dual-layer DVDs. Supporting speeds up to 16x for standard DVDs and 4x for dual-layer formats, it combines speed with efficiency. This model incorporates LightScribe technology, enabling users to etch labels directly onto specially coated discs, adding a personal touch to data storage. Its efficient cooling system helps maintain performance during extensive usage, ensuring longevity and reliability.

All three models represent LG's commitment to quality and innovation in optical storage technology. With features such as Power Burn technology and Seamless Link, they provide users peace of mind during high-speed data transfers. Their compatibility with different operating systems further enhances their versatility, making them suitable for both home users and professionals. Overall, the GSA-4167B, GSA-4165B, and GSA-4168B are exemplary models that reflect LG Electronics' dedication to advancing technology and enhancing user experience in the realm of optical drives.