Servo Pin List

Pin Name

Pin No.

I/O

destination

Function

 

 

 

 

 

BLANK

156

I

AFE

Blank signal input

 

 

 

 

(also connected to the H8S interrupt port INT5)

 

 

 

 

 

DEFECT

157

I

AFE

Defect (scratch detect) signal

SFG

213

IU

DRVR

Spindle FG pulse

 

 

 

 

(also input to the H8S interrupt port INT4)

EFG

214

I

PU

Spindle FG pulse for Light Scribe

 

 

 

 

(also input to the H8S interrupt port INT4)

 

 

 

 

 

TLD

212

TO

DRVR

Tilt drive signal (PWM output)

SPD

211

TO

DRVR

Spindle drive signal (PWM output)

LDD

210

TO

DRVR

Loading drive signal (PWM output)

 

 

 

 

 

LED

209

TO

PU

LPS_LED control signal (PWM output)

ATZC

172

AI

AFE

Tracking Zero Cross input signal

FE

169

AI

AFE

Focus error: sampled at 352.8 kHz

 

 

 

 

 

PE

170

AI

AFE

Laser power error: sampled at 352.8 kHz

SIGM

171

AI

AFE

Signal monitor: sampled at 88.2/176.4 kHz

TE

173

AI

AFE

Tracking error: sampled at 352.8 kHz

 

 

 

 

 

LPSA

174

AI

AFE

Lens positioning/lens error: sampled at 88.2 kHz

TCPH

175

AI

AFE

Tracking center/BETA top hold: sampled at 44.1/176.4 kHz

TIBH

176

AI

AFE

Tilt error/BETA bottom hold: sampled at 44.1/176.4 kHz

 

 

 

 

 

BCENT

177

AI

AFE

BETA center: sampled at 176.4 kHz

GAD1

179

AI

 

General AD input: sampled at 88.2 kHz

GAD0(VRDC2N)

178

AI

 

General AD input: sampled at 176.4 kHz

 

 

 

 

 

FOD

180

AO

DRVR

Focus control signal

TRD

181

AO

DRVR

Tracking control signal

TVDP

182

AO

DRVR

Sled drive signal (normal phase)

TVDN

183

 

 

Sled drive signal (counter phase)

DAVC

184

AO

DRVR

Servo system Vcc/2 voltage output pin

 

 

 

 

 

64

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LG Electronics GSA-4168B, GSA-4165B, GSA-4167B service manual Servo Pin List Pin Name Pin No Destination Function

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.

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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.

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