Block Diagram

 

 

*3300p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3300p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lo-Z function by IDGATE.

 

 

 

 

 

 

 

 

 

 

 

 

0.1u

 

 

 

 

 

 

 

 

 

12k

 

 

 

 

VREF1

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.47u

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fast mode

 

 

 

. 3.3us

 

 

*3300P/0.068u

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(*2)

 

 

 

4700p

 

 

 

 

 

 

 

Lo-Z function by IDGATE.

 

 

D

 

D

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUMF/ SUMF2

 

LOZB/ SPDSH

 

 

IDGATE

 

RFHLD/ TISH1

 

 

 

AGFU

AGFR

 

AGHPF1

AGHPF2

 

IREFE

 

 

 

EQFCF

mclk

 

 

 

 

 

0.068u

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to MIRR.DEFECT

 

 

RFIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RFIN

 

 

RF SLIM/SUB

SUBP.N

 

 

HP2

 

 

 

RF

 

 

 

HP3

 

 

 

RF

 

 

 

 

 

 

 

 

EQOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQON

 

 

 

 

 

 

 

 

 

(RGA)

 

 

 

 

 

 

 

AGC

 

 

 

 

 

 

EQ

EQ-

 

 

 

 

 

 

 

 

 

 

 

 

SUMF2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUTO

 

 

 

 

 

 

0.068u

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQOS

 

to WRF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

IP1/LPPOUT

 

 

M

 

 

 

 

 

 

 

 

ATEST

 

 

 

 

 

U

 

 

 

 

 

LPPMON/EQOS/RRF/WRF

 

 

IP2/MIRR

 

 

X

 

 

 

 

 

 

D

M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U

 

 

ID

 

 

 

 

 

 

 

mclk

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

SUBO/LPPMON

 

MIRR

M

DET

SUBW

 

 

 

 

LPP

BHC

15,000p

 

 

 

 

 

U

 

 

 

 

 

 

 

SUBI/LPPSIG

 

 

X

 

 

 

 

 

 

 

mclk

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2200p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VREF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MA

 

2

 

 

 

Wobble

 

 

 

 

 

F0-CNT

WOBFCF

0.47u

 

MB

Pick

 

 

 

 

 

 

 

 

 

 

WOB

 

S/H

 

 

 

 

 

 

 

 

 

MC

I/F

 

 

 

 

 

 

 

 

AWOBSIG

VREF1

 

 

 

 

 

 

 

 

 

 

 

 

 

MD

 

 

 

 

 

AGC1

 

 

 

 

 

 

WOBSIG

to A/D

 

 

 

 

 

 

 

 

 

 

 

COMP

D 0.1u

 

 

 

 

 

 

SUB

BPF

AGC3

 

 

 

 

4

 

 

 

AGC2

 

 

 

 

 

 

WAG3

*HPF fc=1kHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BPO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WAG1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SA

 

main

 

S/H

 

 

 

 

 

 

 

WAG2

0.1U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SB

 

 

 

 

 

 

 

 

 

 

 

 

 

0.12U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SC

 

 

 

 

 

 

 

 

 

 

 

 

LNDTRK

0.12U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SD

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TE

BALANCE

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TE

 

 

 

 

sub

 

 

S/H

 

 

 

 

 

 

 

to LPF,A/D

 

 

 

 

 

 

DPD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to LE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MPP SPP

 

 

 

 

 

 

 

 

 

 

 

 

 

FE

BALANCE

FE

toLPF,A/D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pick-up I/F

HAVC

 

 

 

 

 

 

 

 

 

 

 

 

PE

 

 

 

 

 

 

 

PE

 

 

 

 

 

 

toLPF,A/D

 

 

 

 

 

 

 

 

 

 

 

 

 

reference level

 

 

 

 

 

 

 

 

MPP

 

 

 

 

 

 

 

 

 

 

SHPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBLSH

 

 

 

 

 

HFSUM

 

RRF

SPP

 

FE

 

 

 

D

 

 

 

 

 

HFPE

 

 

 

 

 

 

MPDSH/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

SPDSH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MUX

 

 

 

 

 

 

 

 

 

LE

 

 

LO_ZB/SPDSH

 

 

 

 

 

 

 

 

 

 

 

toLPF,A/D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pin

SUMF2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MWRF

WRF U

X

mclk

MCLK

 

 

 

 

 

 

 

 

D/A

 

 

 

 

 

 

power 3.3V

 

 

SRVREF

 

0.1u

 

 

 

 

20k(*1)

 

 

 

 

 

 

IREFT

VREF

 

 

 

 

 

 

 

 

 

VREF1

 

0.01u

 

 

 

VFREFO

 

10u

0.01u

 

MRSTB

 

 

 

 

D

 

 

 

 

 

 

VHALH(=VDD/2)

VREF1(=2.1V)

FVREFO(=2.5V)

SAV

EQOP/N

IP2/MIRR pin

MIRR

RECD

 

 

 

 

 

 

 

 

 

 

 

 

 

RECD

BLANK

 

 

 

 

 

MIRRTOPH

 

 

D

0.033u

 

 

 

 

 

 

 

MIRRBOTH

 

 

 

 

 

 

 

 

 

 

MIRR

MIRRHPF

 

 

 

 

 

 

 

0.033u

DEFECT

 

 

 

0.1u

 

 

TOPH

 

 

0.033u

0.068u

 

 

BOTH

 

 

 

 

SDEN

Serial

D

 

 

 

 

 

D SCLK

Cont.

D

 

SDATA

Reg.

 

 

 

 

 

 

 

 

 

 

 

 

D

 

PORT00~07.10~13

 

 

 

 

 

 

D

 

WGATE

 

 

 

 

 

WGATE

 

D

 

 

 

 

 

 

 

D

 

 

RFPDSH

 

 

 

FVREF

 

 

 

 

 

 

 

 

FMD

VRDC2N/ PWRMON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VRDC3N

 

 

 

 

 

 

 

 

 

Power

 

 

Cont.

 

 

 

 

 

12

APC

 

VRDCN VRDC

LDOUT

Programm able I/O port

GCAOUT

PWWMON

BHOUT

VDD5

GND5

VDD4

 

 

 

 

 

BPO

 

 

GND4

VDD3

GND3

VDD2

GND2

VDD1

 

 

GND1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DFT

D

 

 

 

 

RFHLD/TISH1 pin

TIE

SPBLVL/TISH2

 

 

D

 

 

 

 

 

 

SPBLVL

 

 

 

LO_ZB/SPDSH

 

R-OPC

PHBETA/TCE

toLPF,A/D

OPC

BHBETA/TIE

toLPF,A/D

 

 

BCENT

 

 

toLPF,A/D

 

 

RFHLD/TISH1 pin

 

 

 

each blocks

3

AIN1~3

SIGM

 

 

 

vCC2

vCC1

SIGM

toLPF,A/D

 

 

 

In the case of

analog APC

3.3u

 

D

 

 

 

 

680k

0.1u

0.1u

0.1u

0.1u

0.1u

8200p

 

power 3.3V(VDD)

 

0.1u

0.1u

 

 

 

 

 

...Combined pin

(*1), (*2)...1% Resistor

 

 

 

 

 

 

 

 

 

 

 

 

D ...digital pin

 

 

 

 

 

 

 

 

 

D/A...digital/analog pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power 5V

 

 

 

 

 

 

 

 

 

 

 

 

 

56

Page 52
Image 52
LG Electronics GSA-4165B, GSA-4168B, GSA-4167B service manual Pick

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.