3-1-2. Block Diagram (Seek)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC101

 

 

 

 

 

 

 

 

 

MPPO

 

R2S35002

 

 

 

 

 

 

 

 

(A+D)-(B+C)

 

 

 

 

 

 

 

 

(EF1~EF4)

 

SPPO

-

L

 

L

HAVC

 

 

 

 

 

LS

1

 

 

 

 

 

 

 

P

G

P

TE1

 

A,B,C,D

 

[(EF1+EF4)-(EF2+EF3)] +

to

 

 

F

 

F

 

 

Disc

 

 

V14

 

 

Optical

 

 

 

 

 

 

 

VREF1

 

 

Motor unit

Pick-up

 

 

 

 

 

 

 

 

 

 

 

A+B+C+D

 

 

 

 

 

 

 

 

HOP-7632TS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

TACT- TACT+

 

 

 

HAVC

 

 

VREF1

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

LS

 

 

 

 

 

 

 

 

 

P

G

 

 

 

MIRR

 

 

 

 

 

to

 

 

 

38

MIRR

 

 

 

F

 

 

 

 

 

A+

 

 

V14

 

 

 

DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-

 

 

 

 

 

 

 

 

 

 

 

B+

79

 

 

 

 

 

 

 

 

 

 

SUMF

 

EQ

 

 

 

 

 

 

 

 

B-

80

 

 

 

TOP

BOTTOM

 

 

 

RFIP

AGC

 

 

 

 

 

HOLD

HOLD

 

 

SLED MOTOR

 

 

 

 

81

 

 

 

 

 

 

 

 

 

Unit

RFIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

63

62

 

 

 

 

 

 

 

 

MIRRTOPH

 

 

MIRRBOTH

 

 

 

 

 

 

 

 

C128

 

 

C127

 

 

 

GND

 

 

 

 

GND

 

 

GND

 

 

C101

 

 

 

 

 

 

 

 

 

 

 

 

TE

 

 

 

 

 

 

 

 

 

 

 

173

 

 

 

 

IC301

 

 

 

 

 

R101

 

 

 

 

 

R8J32007

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TE1

 

 

 

 

 

 

Track Counter

 

 

 

 

 

 

 

 

 

IP2MIRR

and Timer

MIRR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

149

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short

 

 

 

 

 

 

 

D

 

TRD

 

 

 

 

 

 

 

 

 

 

 

Tracking

 

 

M

 

 

A

 

 

 

Seek

 

 

 

 

 

A

 

 

181

 

 

 

 

 

 

 

 

 

Compensator

 

 

 

 

 

U

 

 

 

D

 

 

Algorithm

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

SL2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loog

 

 

 

Sled

 

 

D

183

 

 

 

 

 

 

 

 

 

Seek

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

Compensator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Algorithm

 

 

 

 

 

C

182

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SL1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51

Page 47
Image 47
LG Electronics GSA-4167B, GSA-4168B, GSA-4165B service manual Block Diagram Seek, Unit, HOP-7632TS

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.