LG DRN-8060B Service Manual

3

INTRODUCTION

GENERAL FEATURE

SPECIFICATIONS

1. SUPPORTED SYSTEM

• IBM Compatible Pentium 133MHz or Above • MPEG II Board or Software MPEG II Program

2. SUPPORTED OS

3. GENERAL PERFORMANCE

• Rotational Speed........................................................DVD : 3.3X~8X (CAV) Approx. 4,800 rpm

(single layer - Press)

2.0X~4X (CAV) Approx. 3,800 rpm(DVD-R)

2.0X~4X (CAV) Approx. 4,200 rpm(dual layer)

CD-ROM : 10X~24X (CAV) Approx. 4,650~5,000rpm CD-RW, V-CD, Audio CD : 6X~12X (CAV) Approx. 3,200rpm

• Data Transfer Rate

* Sustained Data Transfer Rate................................DVD(Outer side) : Approx. 10,800kbytes/sec

DVD (Inner side) : Approx. 4,500kbytes/sec CD (Outer side) : Approx. 3,600kbytes/sec CD (Inner side) : Approx. 1,550kbytes/sec

* Burst (ATAPI) .........................................................16.67 Mbytes/sec (PIO Mode 4)

16.67 Mbytes/sec (Muliword DMA Mode 2)

33.3 Mbytes/sec (Ultra DMA)

• Access Time (Including Latency)

* Random Access*1..................................................DVD : 150ms Typical (8X)

CD : 130ms Typical (24X)

* Full Access (First to Last Block)*2..........................DVD : 240ms Typical (8X)

CD : 220ms Typical (24X)

Notes : *1 : Average Random Seek time is the typical value of more than 100times including latency and error

correction time.

*2 : Average Seek time is the typical value of more than 100times including latency and error correction time.

Test Disc : a CD : A-BEX TCDR-701

b DVD : A-BEX TDV-520 or TEAC MDVD411/MDVD-191or TDR-820

• Data Buffer Capacity .................................................. 512Kbytes

• ATAPI interface

• Ultra Slim type DVD-ROM drive. (Height : 12.7 mm)

• Ability to read single sided, single layer, or dual layer DVD media

• ATA4, Ultra DMA33 support

• DVD-5, DVD-9, DVD-10 Capable

• Sustained Transfer Rate 10,800 KB/sec (Max.) DVD media & 3600 KB/sec (Max.) CD-ROM Media

• (150)ms Average Access time in DVD mode

• (130)ms Average Access time in CD mode

• Support 8x(Max.) Rotational Modes in DVD mode

• Support 24x(Max.) Rotational Modes in CD mode

• DVD-R, CD-R, CD-RW read capability

• Drawer load

• MPC level 3 compatible

• Photo CD : Single and Multisession support

• XA ready

• Subcode Q

• Red Book Audio

• Analog Line out

• Digital Audio through Atapi interface

• Energy conservation modes

• Horizontal/Vertical operation

• MS-DOS (Ver 3.1 or Higher)

• Windows 3.1/95/98 Higher

• Windows NT (Ver 3.5, Ver 4.0) or Higher

• OS/2 Warp (Ver 3.0 & 4.0) or Higher

This service manual provides a variety of service information. It contains the mechanical structure of the DVD-ROM Drive together with mechanical adjustments and the electronic circuits in

schematic diagram. This DVD-ROM Drive was manufactured and assembled under our strict quality control standards and meets or exceeds industry specifications and standards.

4

4. POWER REQUIREMENTS

• Voltage .......................................................................+5V DC +5%

• Ripple .........................................................................+5V : 100mVp-p

• Seek ..........................................................................1300mA Max, 960mA Typical

• Normal Read ..............................................................1,000mA Max, 880mA Typical

• Standby & sleep .........................................................40mA Max

5. AUDIO PERFORMANCE

• Frequency Response .................................................20Hz~20KHz ( +3dB)

• S/N Ratio (IHF-A+20kHZ LPF) ...................................80 dB (Typical at 1 KHz 0dB)

75 dB (Limit at 1 KHz 0dB)

• T.H.D. (IHF-A+20kHZ LPF) ........................................0.05% (Typical at 1 KHz 0dB)

0.15% (Limit at 1 KHz 0dB)

• Channel Separation (IHF-A+20kHZ LPF)...................75 dB (Typical)

70 dB (Limit)

• Output Level (1kHz 0dB) 47KΩ Load.........................1.0Vrms +20%

DISASSEMBLY

5

1. CABINET

A. Release 3 screws (A). B. Lift up the Cabinet in the direction of arrow (1).

(See Fig.1)

2. MAIN CIRCUIT BOARD

A. Inset and press a rod in the Emergency Eject Hole and

then the CD Tray will open in the direction of arrow (2). B. Release 2 screws (B). C. Remove the Main Circuit Board.

3. FRONT PANEL

A. Release 2 screws (C) and remove the Front Panel. B. At this time, be careful not to damage the 2 hooks (a) of

the it. (See fig.3)

C. Release 3 screws (D) and remove the Cover Bottom (3).

4. BASE PICK-UP

A. Remove the Base Pick-up (4).

(1)

(A)

CABINET

2 HOOKS

HOOK (a)

FRONT PANEL

COVER BOTTOM

BASE PICK-UP

MAIN CIRCUIT BOARD

Emergency Eject Hole

Fig.1

Fig.3

Fig.2

Fig.4

(B)

(2)

(3)

(D)

(C)

(D)

(C)

(2)

(4)

15

PN201

14

15

R213

C233

C234

Q202

C203

C207

CD LD

CD PD

DVD LD

IC201 SSI3723

DVD PD

Q201

R202

Vcc

5V

Vcc

5V

10

9

DVD MD

DVD LD

LD

CD MD

CD LD

DVD-LD(LASER DIODE)

CD-LD(LASER DIODE)

PICK-UP Unit

Monitor Diode

22

24

21

23

1-2. APC Circuit Operation

It drives the LD to the constant current and adjusts the LD input current , so that the output current is constant. IC201 (SSI3723) Pin , : PD IN, Monitor Input of Laser diode APC IC201 (SSI3723) Pin , : LD OUT, External Current Driver Control output of the LD (Laser Diode)

The detect current from the monitor diode converts to the I/V (Current/Voltage) at the external resistor. Beforehand, it adjusts a fixed level over for a standard GND. If this voltage inputs to the PD IN (IC201 Pin 23, 24), it is amplified about 36.4 times (about 31.2dB). So this voltage outputs from the LD OUT (IC201 Pin 21, 22).

The LD driving element (Q201/Q202) uses the TR more than 200hfe, and controls LD OUT (IC201 Pin 21,

22) connected to the base of Q201/Q202. The APC control for the each DVD/CD sets Register of the IC201 (SSI3723) according to Disc in the µ-COM.

DESCRIPTION OF CIRCUIT

1. APC (Automatic Power Control) Circuit

1-1. APC Circuit Constitution

23

24

21

22

16

E

A

B

C

F

D C B

A

E

1 13 11

16 17

19 20

1

3

4

12

1

18

CD (A, B, C)

DVD RF

17 18

64

5

6

9

10

11 12

13

14

15

16

AMP

MUX

ATT

AGC

40

GCA

SUM AMP

BUFF

MUX

FE

TE

RF AC

To IC301 3

To IC301

143

To IC301 13 To IC401 117

GCA

39

57

EQ

Phase Detector

EQ

DVD (A, B, C, D)

DVD (A

2

, B2, C2, D2)

CD (E, F)

Pick-up Unit

PN201

IC201

SSI3723

4

RF DC

RF SIN

63

2. RF Amplifier Circuit

2-1. RF AMP Constitution

17

FOCUS & TRACKING SERVO PROCESS

SLED(Feed) SERVO PROCESS

F

D

C

B A

B

A

E

C

Pick - Up

IC201

RF AMP SSI3723

5

CD

E-F

(A. B. C. E. F)

6

DVD (A. B. C. D.)

TE/ DPD TE

SELECTOR

FE

Generating

DPD TE

Generating

TE

FOCUS ERROR DETECTOR

FOCUS & TRACKING

ACTUATOR

IC601

DRIVE BA5918

IC301

CD/DVD SERVO & DSP CXD3011R

F+ F-T+ T-

LEVEL SHIFT

FAO

TAO

D/A

DIGITAL

EQUALIZER

(AUTO ADJUSTMENT CIRCUIT)

SLED

Control

Signal

A/D

TE FE

TE

SAO

Q502/Q503

5V

SLED MOTOR

Photo Interrupter

M

PHO - C

PHO - Vcc

FEED. MOTOR+

FEED. MOTOR-

LEVEL SHIFT

IC601

Q501

DRIVE BA5918

2SC4617(BR)

IC501

u-COM

SLED CLK

(A. B. C)

(A. B. C.D)

(A

2

. B2. C2 .D2)

3. Focus/Tracking/Sled Servo Circuit

3-1. FOCUS, TRACKING & SLED SERVO PROCESS

17

3-2. Focus Servo for CD/DVD

Focus Servo for CD/DVD is based on focus error signal generated from RF AMP (SSI3723). It standardizes the laser beam (CD : A, B,C, DVD : A, B,C,D) radiated from the pick-up. Each other focus gain or path is made at the SSI3723 (IC201) according to the disc, Focus Error signal output from the FE terminal and input to Servo IC (IC301 CXD3011R). After the first amplification of this signal, the signal is converted to A/D and input to Digital Equalizer Block assigned the most important part at the Focus Servo, and generates the focus servo with coefficient value set at the µ-COM through the Digital Filter. At this Digital Equalizer, auto adjustment for Focus Balance or Focus Loop Gain occurs and the basic offset value for pick-up is accepted on the balance mode, and set the focus standard level to this value. After the signal for Focus Servo is converted to the D/A and output through FAO (IC301 CXD3011R ). This signal drives Focus Actuator through the Focus Drive IC (IC601:BA5918FP).

3-3. Tracking Servo for CD/DVD

For Tracking Servo, CD uses 3 Beam method (E-F), DVD uses DPD (Differential Phase Detect) method [Phase (A+C) - Phase (B+D)] According to the disc, Tracking Error is set at SSI3723, Gain or Path differs from each other, and the generated signal output through the TE terminal. This signal input to TE of IC301, after the first amplification, and converted to A/D. The signal converted to A/D input to the Digital Equalizer assigned the most important part at the Tracking Servo, Tracking Servo Gain is generated with Digital Filter coefficient value set according to the disc at the µ-COM.

* Tracking signal is converted to D/A through the pin TAO terminal of IC301 and input to IC601

(BA5918FP) tracking drive. This drive drives the tracking actuator actually.

3-4. Sled Servo (Feed Servo) for CD/DVD

Sled servo operates related with a tracking servo basically It goes with the progressive track speed according to the disc rotation speed. Sled drive voltage is generated with a accumulated capacity of tracking error signal and is applied sled movement voltage according to the track movement capacity, and this voltage outputs to the pin SAO of IC301. This value is the sled motor drove by the IC601 (Sled drive : BA5918FP). But, the shift speed for pick-up is not controlled and broke with a only sled servo, itself, in the data access mode, and the feedback is used according to the sled shift speed at this time. So, the accurated shift speed for pick-up is controlled added to the sled signal. The hall sensor is used in the feedback and SLEDCLK 95 output at the µ-COM (IC501) is used with it in the sled kick or break.

113

112

111

19

E

A

B

C

3

4

F

M

PICK-UP

SPINDLE MOTOR

A+B+2C

CD RF

DVD RF

A+B+C+D

IC501

IC301

IC601 Drive(Amp)

IC401 DVD DSP CXD1867R

PLL BLOCK

Gain Ctrl

FG

PLL BLOCK

Spindle Control

DVD RF

CD RF

Motor

Hall Sensor

U

HU+ HUHV+ HVHW+ HW-

V

W

Speed Monitoring

u-com

DVD/CD SERVO & CD DSP

CXD3011R

IC201

RF AMP

SSI3723

IC1

Q601

AN8473SA

Motor Drive

SPINDLE SERVO PROCESS

LEVEL SHIFT

A, B, 2C

A, B, C, D

RF

A

D

C

B

FG

MDP

MDIN2

SPO

CD/

DVD

4. Spindle Servo Circuit

4-1. SPINDLE SERVO PROCESS

4-2. Spindle Servo for CD/DVD

DVD-ROM consists of the three spindle control respectively. (1) DVD x 8 : CAV (DVD Single, Dual Layer) (2) CD x 12 (max.) : CAV (CD-DA, CD-RW, Video-CD (6-12 x), Host command stand-by of CD-ROM and CD-R) (3) CD x 24 (max.) : CAV (CD-R, CD-ROM play mode) In the spindle speed control mode respectively. CD x 12(Max)/CD x 24(Max) CAV drives CAV servo with PLL of RF data read and received MDP. (Pin 117 of IC301) DVD x 8 (Max) CAV drives CAV servo with FG signal and received MDP. (Pin 117 of IC301)

20

DESCRIPTION OF DATA PROCESSING

1. CD Data Processing Flow

CD

Pickup

Unit

Motor

Drive

Generating

A/B/2C/E/F Signal

H8/3062

Buffer

CD Data Buffering

CXD1867R

CD-ROM Decoder

and Host Interface

CXD 3011R

CD DSP

SSI3723 RF

Signal processing IC

CD TE/FE/SLED

Spindle Control

Command

Data

Status

SDATA

CD DATA

CD RF

IC201

IC301

IC401

IC471

IC501

MA [0..8]

MDB [0..F]

DATA [0..7]

ADR [0..8]

SICLK

SIXLT

SIDAT

SCLK

CD Data ECC

Receive the order from Host

2’nd ECC

CD Data Buffering

Generating RF Signal

Generating Tracking Error

Generating Focusing Error

CD Servo Control

CD Data Flow Control

Host Command Receive or Data/Status Transfer˚

Error Correction

Generating Header Sync

Generating Subcode Sync

EFM Demodulation

21

2. DVD Data Processing Flow

DVD

Pickup

Unit

Motor

Drive

DVD

TE/FE/Sled/

Spindle control

Sled Control

CXD 3011R

CD DSP

H8/3062

Buffer

CXD1867R

DVD DSP

Command

Data/

Status

DVD RF

DATA [0..7]

ADR [0..8]

MA [0..8]

MDB [0..F]

Generating

A/B/E/F Signal

SSI3723 RF

Signal processing IC

Generating RF Signal

Generating Tracking Error

Generating Focusing Error

Error Signal

Receive the Command from Host

DVD Data Buffering

Copy Protection Control

DVD Data Buffering

DVD Servo Control

DVD Data Flow Control

Host Command Receive or Data/Status transfer

Focus Control

Tracking Control

Spindle Control

EDC + ECC processing

Generating DVD ID Sync

EFM Demodulation

22

CXD 1867R

HOST DVD

PLAYER

(MPEG2

DECODER)

H8/3062

Scrambled MPEG Data

Change the "KEY"

KEY Management Control

3. Copy Protection and Regional Code Management Block

Block Diagram

Brief Process

1. Regional Code for DVD Disc

– DVD-ROM drive transfers the regional code of the control data to host by the command of host, the DVD

player of host reads the regional code, and plays title in the case of allowed regional code only.

2. Management of DVD Disc for the scrambled of data

(1) DVD-ROM and DVD player of host generate the “KEY 1” respectively, transfer to opposite part, the

“KEY 2” is received, recognizes the data transfer or not with this value, and generates the bus key

encoded the data. (2) Encoded “Disc Key” and “Title Key” host is transfer with the bus Key. (3) DVD player of host reads the key value, and uses the value to restore the scrambled data.

* Refer to the next page for the details.

23

4. About Prevention the DVD-ROM from to be copy

A data is able to encode and record in the disc, if a copyright holder wants to prevent the disc from copying.

In case of a disc enhanced movie of 3 titles......

DISC KEY (2048 Bytes) is used to encode the whole contents in the disc and TITLE KEY (5 Bytes) is used to encode the title respectively. So, the data is encoded and stored in a disc through the unknown algorithms with a disc key and title key. (At this time, the disc key and title key are stored in a disc.)

…As above, the disc is able to copy when the disc key and title key are

opened. Then, ROM-DRIVE encodes the disc key and title key and transfers to MPEG2 board.

If you want to play the disc prevented from the copy......

First of all, ROM-DRIVE and MPEG-2 board identify with each other through the procedure as described below.

1. Drive and host gives and takes the ID of 2bit. This ID is AGID (Authentication Grant ID). The various decoder boards are attached to the host, in these, AGID sets the MPEG-2 board and drive.

2. After the AGID is set, MPEG-2 board generates the challenge key (10 Byte) and transfers to drive. The board and drive generate key 1 (5Byte) with the challenge key respectively. (Of course, the Algorithm generating the key 1 is not known.)

3. Compare with the generated key 1, if it corresponds each other, the first step of authentication is completed. This is a course to identify the MPEG-2 board with a drive.

4. The second step of authentication is a course to identify a drive with the MPEG-2 board. The dirve generates a challenge key and transfers it to the MPEG-2 board. The dirve and MPEG-2 board generate the key 2 (5Byte) with the challenge key, compare with each other, and if it corresponds and the secondary step of authentication is completed.

5. As above, the identification is completed.

6. The dirve and MPEG-2 board generate the Bus key with the key 1 and key 2 and own it.

7. Dirve encodes the disc key and title key with this Bus key and transfers to the MPEG-2 board.

8. The MPEG-2 board reads the encoded disc key and title key with the Bus key only.

9. MPEG-2 board lets data read from the drive to decode with the read disc key and title key and makes into the video signal by decoding.

ROM-DRIVE

AGID

HOST

MPEG-2 DECODER

Challenge key

encoded disc key, title key

24

5. About the DVD-ROM Regional Code

DISC ROM - DRIVE MPEG-2 DECODER VGA CARD

MONITOR

1

CAN

U.S.A

MIX

CUB

BHS

PRI. VIR

1

BMG

GRL

2

ZAF ISO SWZ

FIN

POI

FST

LTU

BIR

UKR

TUR

FGY

JRN

TKM

AFG

PAK

CHN

MMR

MNG

RUS

KOR

JPN

HKG

MAC

TWN

PHL

6

3

2

1

5

4

1

MDI

MNP

GUM

PLW

PNG

NZL

AUS

4

The disc has the regional code of 8 bit.

Example)

The disc manufactured in the U.S.A, has the number one.

Transfer to MPEG-2 Decoder reading the regional code.

Receiving data from the MPEG-2 decoder and output through the monitor

If the decoder is setting to the regional decoder 1 for the

U.S.A. ...

Check the received regional code to number 1, all or not, transfer the data to VGA card in accordance with only a case among the three case.

Regional code

+5V

GND

FROM HOST ADAPTOR

3.3VA

IC101

RS5510H003C

IC501 H/8/3062

IC1 AN8473SA

IC301 CXD-3011R

IC401 CXD1867R DVD SERVO/DSP

IC601 BA5918FP

IC801 BH3525FV

5VA

5V

3.3V

Spindle

Motor

Drive

Spindle

Motor

CD-Audio

EFM/CIRC

DAC

SSP

RF PLL

CLV

Servo

EFM

Demod.

DVD

Decode

PN701

ECC

Core

CD-ROM

Dec.

Authentication

A/V Dec.

I/F

DMA

I/F

ATAPI

I/F

DRAM

512kB(4M)

Sync.Det

CLV

Servo

Sync. det

Loading &

Sled Motor

Drive

Sled

Motor

Tracking &

Focus

Tracking &

Focus coil

Audio

Line

Amp

Reset

&

Regulator

SYSTEM

CONTROLLER

Q101

XC62H3302

NJM 2100

CD SERVO/DSP

LASER PICK-UP

DVD, CD DISK

IC201 SP3723

IC471

H O S T

I/F

A B CD

1

2

3

4

5

CD/DVD RF AMP

EQ.

IC102

IC402(1/2)

X301

33.86MHz

To Motor Drive

IC401/501

VREF1

CXD1867

VC(1.65V)

To CXD1867

To CXD-3011R

(IC301)

SF-HD4SSLG

VREF

1.35V

X501

20MHz

33.86MHz

50MHz

SPINDLE MOTOR ASSY CIRCUIT

CD-A

CN2

TO

P-UP

1

CD-A

CN1

40

CD-F

39

P/UP-VCC

P/UP-GND

38

37

CD-VC

36

353433

CD-LD32CD-MD31CD-C

To

Main

Board

30

CD-E29CD-B

28

DVD-MD27DVD-LD26DVD-C25DVD-B24DVD-RF23DVD-A22DVD-D21DVD-VC

20

T (+)19F (-)18F (+)17T (-)

EC

16

MOTOR GND14MOTOR GND13MOTOR VCC12MOTOR VCC

PWR SAVE

11

10

ECR

9FG8

7

SLED CLOCK 6

PHO VCC

5

EJECT SW

4

LED (+)3SLED (-)2SLED (+)

1

LEAD IN SW

15

CD-F

2

NC

3

CD-VCC

4

CD-VC

5

CD-GND

6

CD-LD7CD-MD

8

NC

9

CD-C10CD-E11CD-B

12

CD-VR

13

DVD-VR

14

DVD-MD 15

DVD-HFM

16

DVD-LD-GND

17

DVD-LD

18

DVD-C

19

DVD-B

20

DVD-RF

21

DVD-A

22

DVD-D

23

DVD-LD-GND

24

DVD-VC

25

DVD-VCC

26

27

28

F (+)

F (-)

T (+)

29

T (-)

CN3

SLED CLK

SW

SW1

1

2

30

1

CA

KE

PH-E

PH-C2PH-A3PH-K4GND

5

EJECT SW

6

LED

7

SLED (+)

SLED (-)

8

9

CD-F

CD-VC

C03

L2

R4

VH

VM11

IC1 AN8473SA

R1

R2

0

100

BEAD

220

C2

C3

2200p

0.1u

D1

6.2V

0.1u

0.22(1/4W)

R5

C4

C7

R3

SW

R6

V

SPINDLE

MOTOR

360

47u/6.3V

1+2

CD-LD

CD-MD

CD-C

CD-E

CD-B

DVD-MD

DVD-LD

DVD-C

DVD-B

DVD-RF

DVD-A

DVD-D

DVD-VC

SLED CLK

T(+)

F(-)

F(+)

T(-)

C6

C5

47u/6.3V

+

H3

H2

H1

PHO VCC

EJECT

LED

SLED (+)

SLED (-)

CD-F

CD-VC

CD-LD

CD-MD

CD-C

CD-E

CD-B

DVD-MD

DVD-LD

DVD-C

DVD-B

DVD-RF

DVD-A

DVD-D

DVD-VC

T (+)

F (-)

F (+)

T (-)

PHO VCC

220

EJECT

LED

SLED (-)

SLED (+)

M

1

32

VM12

H3L2H3H3H2L4H2H5H1L6H1H7EC8ECR9FG10START

VPUMP

BC1

BC2

GNC

VDD

31

PWMSW

30NC29

A1228A11

27

PG1

26

A2225A21

24

PG2

23

A3222A31

21NC20CS19

VM2218VM21

17

11 12 13 14 15 16

62

25

IC201 (SSI3723) : RF Signal Processing for CD/DVD

It amplifies or equalize the RF signal from Pick-up, and generate the TE (Tracking Error) and FE (Focus Error) signal for Servo respectively. The TE signal uses the DPD (Differential Phase Detect) method for DVD and 3 Beam method for CD. DVD FE = (A+C) - (B+D)

CD FE = F - E

Block Diagram

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN

DESCRIPTION

DVDRFP

DVDRFN

RFSIN

MUX

ATT

4. SIGR b3

INPUT SEL

5. RFCR b7-6 INPUT IMP

SEL

5. RFCR b5-4

INPUT IMP SEL

4. SIGR b7-4 ATT

2

4

2

4

3

2

5

4

2

IMPUT

BIAS

AGC

PROGRAMMABLE

EQUALIZER

FILTER

DIFFERENTIATOR

2. FCCR b7-0

3. FBCR b6-0

+

-

+ +

+

-

+

-

+ +

+

-

+ +

+

-

+

-

SSOUT

13. CAR b1-0

13. CAR b3-2 SIGDET

2

Level

DAC

GCA

1. PDCR b3 CD/DVD

4. SIGR b2-0

6dB is added

@high gain mode

(16. CDR b4=1)

12dB is added

@high gain mode

(16. CDR b4=1)

12dB is added

@high gain mode

(16. CDR b4=1)

3

4

5

6

3

8. TRCR2 b3-0

+/- 4dB

+3dB

TOPHOLD

6dB

Amp

Offset

cancel

Offset cansel

17. CER b4-0

AGCO

FULL WAVE

RECTIFIER

17. CER b6

FAST Attack

17. CER b5

SLOW decay

AGC

CHARGE

PUMP

5. RFCR b3

AGC HOLO

w/LPF

4. SIGR b2-0

12dB is added

@high gain mode

(16. CDR b4=1)

A+D

A+C

B+C

B+D

A

B

C

D

3. FBCR b7

OUTPUT INHIBIT

6. FOCR b7-4

70kHz

LPF

DAC

GCA

SUM Amp

Clamp

& Env

Inv.

10. PIOR b4-0

70kHz

15. CCR-b4-0

+/- 6dB, 4bit

6. FOCR b3-0

PII

14. CBR b1-0

14. CBR b3-2

SEL

Buff

5

4

9. CTCR b3-0

-6dB @normal

COMP

9. CTCR b7 BCA DET

SEL

PI FE TE CE

V25 V125 V25/3

MNTR

Control

10. PIOR b7-5

14. CBR b5-4

16. CDR b5 HLDEN

18. CFR b2-0 CE-ATT

18. CFR b3 CEPOL

5. RFCR b2-0

EQ

3

Comp

PHASE

DETECTOR

PHASE

DETECTOR

LPF

MUX

SUB

OFFSET

Cancel

GCA

TE

RST

1. PDCR b3 CD/DVD

8. TRCR2 b7 CP/CN

Low Imp

18. CFR b4 CEFDB

7. TRCR b5-0

for PI output ref.

18. CFR b7-5

for TE, FE & CE

output ref.

16. CDR b2

16. CDR b1

V25/2

V25/3

VC=VPB/2

VCI for servo input

SERIAL PORT

REGISTER

V33 for Output buff

CONTROL Signals To each block

12. MRCR2 b4 MIR ONLVL

15. CCR b7 DISK DET

15. CCR b6 Disk Det High Gain @CCR b7 Disk Det=1

11. MRCR b7-5

12. MRCR2 b7 Comp offset & hys

MIRR COMP

16. CDR b6 LINKEN

11. MRCR b4 internal FDCHG

PEAK/ BOTTOM HOLD

15. CCR b7 DISK DET

12. MRCR2 b1-0 Mirr gain

16. CDR b7 Mirro Clamp ON

11. MRCR b1-0 Input Imp

Pll

12. MRCR2 b3-2 Sink current

7. TRCR b7

7. TRCR b6

8. TRCR2 b6-4

5. RFCR b2-0

16. CDR b3 LD H/L

15. CCR b5 APC SEL DVD/CD

DVD/PD

CDPD

AGCO

12. MRCR2 b6-5 MUX

A

CD_A

B

CD_B

CD_C

CD_D

CD_E

CD_F

C

D

A2

B2

C2

D2

LDON

CDLD

DVDLD

MEV

MEVO

MIN

MLPFMPMB

LINK

MIRR

VPA

VPB

VNA

VNB

V33

SCLK

SDATA

SDEN

VC

V25

V125

TE

CN

CP

LCN

LCP

MNTR

CE

RFDC

DFT

TPH

PI

FE

RX

BYP

2

11. MRCR b3-2 Mirr LPF

LPF ATT Pol sel. Buff (-12dB)

INPUT BUFF

Offset

cancel

LPF

VC

Dual APC

ATOP

ATON

AIN

AIP

FNP

FNN

DIN

DIP

RFAC

MUX

BOTTOM ENVELOPE

Name

VPA

VPB

VNA

VNB

V33

V25

Description

Power supply pin for the RF block and serial port

Power supply pin for the servo block

Ground pin for the RF block and serial port

Ground pin for the servo block

Power supply pin for the output buffers

Reference power supply for the servo output

Pin No.

58

19

51

25

45

36

Type

–

POWER SUPPLY PINS

IC201 (SSI3723)

• Pin Description

INPUT PINS

26

Name

DVDRFP,DVDRFN

RFSIN

AIP, AIN

DIP, DIN

A, B, C, D

A2, B2, C2, D2

CD_A, B, C, D

CD_E, F

MIN

DVDPD

CDPD

LDON

LINK

Description

RF SIGNAL INPUTS: Differential RF signal attenuator input pins.

RF SIGNAL INPUT: Single-ended RF signal attenuator input pin.

AGC AMPLIFIER INPUTS: Differential AGC amplifier input pins.

ANALOG INPUTS FOR RF SINGLE BUFFER: Differential analog inputs to the

RF single-end output buffer and full wave rectifier.

PHOTO DETECTOR INTERFACE INPUTS: Inputs from the main beam Photo

detector matrix outputs.

PHOTO DETECTOR INTERFACE INPUTS: AC coupled inputs for the DPD

from the main beam Photo detector matrix outputs.

CD PHOTO DETECTOR INTERFACE INPUTS : CD_A, B, C, D come from

the CD main beam Photo detector matrix outputs.

CD PHOTO DETECTOR INTERFACE INPUTS: CD side beam photo dector

outputs and used for the CD tracking detection.

RF SIGNAL INPUT FOR MIRROR: AC coupled inputs for the mirror detection

circuit from MEVO.

APC INPUT: DVD APC input pin from the monitor photo diode.

APC INPUT: CD APC input pin from the monitor photo diode.

APC OUTPUT ON/OFF: APC output control pin. A high level activates LD

output. (open low)

LINKING SIGNAL INPUT PIN: In the linking area. This pin goes high and the

Mirror and TE outputs are disabled. When the link signal is enabled. (open low)

Pin No.

1,2

63

59,60

54,55

9, 10, 11, 12

3, 4, 5, 6

13, 14, 15, 16

17, 18

31

23

24

26

33

Type

I