LG GSA-4120B Service Manual Download Page 35

Page: 35 / 86

INTERNAL STRUCTURE OF THE PICK-UP

1. Block Diagram of the PICK-UP(HOP-8541T)

GND

RWB

VS0

MON1

SLG
Rfreg
IAPC
ISLOP
AGND
EN
RSET

SCLK

SDIO

SEN

BUSY

NC
NC

OUT1

GND

VSO

OUT2

VS0

NRZ

NRZB

GND

GH06560B2CH

LDD

GND

LDD

GND

AGND

ACT

GND

LDD

CLKB

CLK

VSL

VSA

A1:P

A2:M

A3:N

A4:O

B1:B+G

B2:A+H

B3:E+J

B4:D+K

VCD

RF+

RF-

IC#01

IC#04

IC#02

LM20BIM7

IC#05

0.01

R7 0

10nH

10mH

R16 100

0.1u

R15

100

C10

0.1u

10nH

C15

WRF

NOM

GND

Vcc

LD+

AF+

AF-

TR-

TR+

Tilt+

Tilt-

TILT

LD-

LOW:ACTIVE

HIGH:SLEEP

FE4

FE3

FE2

FE1

GND

6.2k

(1%)

4700

2.7k

390

(1%)

1000p

C14

1000P

LDD

GND

2.2k

10k

C11

0.1u

VR1_100K

VR2_100K

NJM12984

CP2860

R11

27k

R12

R10

27k

VCC

GND

STB

SW CD:LOW

AVCC(+5.3V)

DVD:HIGH

OUT

X00

TOP_VIEW

X00

x.xk

0.1

CP0054AH

VREF

VR3_680

VR4_680

for DVD

for CD

CD0

DVD0

IC#07

IC#06

IC#08

IC#09

IC#10

AGND

AVCC(+5.3V)

10k

BYG144RE

AGND

AVCC(+5.3V)

CP0036AA

VREF

TOP_VIEW

32
31
30
29
28
27
26

11
12
13
14

15
16

FPC CONNECTION

54 TACT+

53 TACT-

52 FACT+

51 FACT-

50 TILT+

49 TILT-

48 AGND

47 AVCC

46 A4

45 A1

44 B3

43 B1

42 VC21

41 B4

40 B2

39 A2

38 A3

37 RFIP

36 RFIN

35 WRF

34 RF (CD)

33 FE4

32 FE3

31 FE2

30 FE1

29 E

28 F

27 VC165

26 THERM

25 FMSW(CD)/DVD SLEEP

24 F MON

23 VC25

22 LPS LDD DRV

21 LPS1

20 LPS2

19 IAPC

18 LNGND

17 ENA

16 SLG

15 VSL25

14 VSA5

13 VSO

12 SRF1

11 SRF2

10 SEN

9 SDIO

8 RWB

7 MONITOR

6 SCLK

5 LNGND

4 NRZB

3 NRZ

2 CLKB

1 CLK

Pin no

Connection

Actuator

5ch ORIC

with DIFF Amp

for RF

CD-R_HOE

Monitor

for APC

LENS_SEN

DVD

LD Driver

(with HF)

54 Pin Pitch=0.5mm

Summary of Contents for GSA-4120B

Page 1: ...SuperMultiDVDDrive SERVICE MANUAL MODEL GSA 4120B P NO 3828HS1047C July 2004 Printed in Korea MODEL GSA 4120B ...

Page 2: ...F DVD R RW DVD R RW DISCS AND DVDD ROM 25 33 1 Recording Layer 25 2 Disc Specification 26 3 Disc Materials 26 4 Writing Pulse Waveform of DVD R 29 5 Writing Pulse Waveform DVD RW 31 6 Organization of Inner Drive Area Outer Drive Area Lead in Zone and Lead out Zone 32 DVD CD DATA PROCESSING 34 37 1 Data Processing Flow 34 2 Copy Protection and Regional Code Management Block 35 3 About Prevention th...

Page 3: ...D RAM Random Write 4 DVD R Sequential Recording 5 DVD R DL Sequential Recording 6 DVD RW Random Write 7 CD R RW Disc at Once Session at Once Track at Once and Packet Write This service manual provides a variety of service information It contains the mechanical structure of the Super Multi DVD Drive and the electronic circuits in schematic form This Super Multi DVD Drive was manufactured and assemb...

Page 4: ...1 2x 2x 3x ZCLV 3x 5x PCAV DVD Video CSS Compliant Disc 8x max Single Dual layer DVD R RW 10x 8x max DVD R DL 8x max CD R RW ROM 40x max CD DA DAE 40x max 4 Sustained Transfer rate DVD ROM 22 16 Mbytes s 16x max CD ROM 6 000 kB s 40x max 5 Burst Transfer rate Ultra DMA Mode2 Multi word DMA Mode2 PIO Mode 4 6 Multimedia MPC 3 compliant 5 Audio 1 16 bit digital data output through ATA interface 2 So...

Page 5: ...c CD ROM Mode 2 data disc CD ROM XA CD I Photo CD Multi Session Video CD CD Audio Disc Mixed mode CD ROM disc data and audio CD Extra CD Text CD R Conforming to Orange Book Part2 read write CD RW Conforming to Orange Book Part3 read write 2 2 Writing method 1 DVD R RW Disc at Once Incremental Recording Restricted Overwrite DVD RW only 2 DVD RAM RW Random Write 3 DVD R Sequential Recording 4 DVD R ...

Page 6: ...d DVD ROM Single layer 6 7x 16x CAV Approx 9 420 r min Dual layer 3 3x 8x CAV Approx 5 180 r min DVD Video CSS 3 3x 8x CAV DVD R 3 95GB 4 2x 10x CAV Approx 5 180 r min 4 7GB 4 2x 10x CAV Approx 5 890 r min DVD RW 4 7GB 3 3x 8x CAV Approx 4 720 r min DVD RAM Ver 1 0 2 1 2x 2x 3x ZCLV 3x 5x PCAV DVD R 4 7GB 4 2x 10x CAV Approx 5 890 r min DVD R DL 8 5GB 3 3x 8x CAV Approx 5 180 r min DVD RW 4 7GB 3 ...

Page 7: ...tes s 2x 3x ZCLV 3 5xPCAV DVD R 5 73 13 85Mbytes s 10x max DVD R DL 4 58 11 08 Mbytes s 8x max DVD RW 4 58 11 08 Mbytes s 8x max CD R ROM 2 550 6 000 kB s 40x max CD RW 2 550 6 000 kB s 40x max CD DA DAE 2 550 6 000 kB s 40x max 3 3 2 Burst transfer rate Ultra DMA Mode 2 33 3 Mbytes s max Multiword DMA Mode 2 16 6 Mbytes s max PIO Mode 4 16 6 Mbytes s max 3 4 Access time 1 3 stroke DVD ROM 145 ms ...

Page 8: ...rite Active 5V DC 0 8A typ 1 3 A max 12V DC 0 8A typ 1 5 A max Read Active 5V DC 0 7A typ 1 3 A max 12V DC 0 9A typ 1 5 A max Seek Acess 5V DC 0 7A typ 1 5 A max 12V DC 1 2A typ 2 0 A max 5 3 Standby Sleep mode No disc 1 1 W typ 1 3 W max 6 AUDIO PERFORMANCE Output Level 1kHz 0dB 0 7Vrms typical Frequency Response 3dB 20 to 20 000Hz Signal to Noise Ratio 80dB min with IHF A and LPF 20 kHz THD 1kHz...

Page 9: ... pressed to open the CD tray This button works only when power is supplied to the drive If an Audio CD is playing pressing this button will stop it and pressing it again will open the tray 3 Emergency Eject Hole Insert a paper clip here to eject the Disc tray manually or when there is no power 4 Drive activity indicator Green colored LED is used to indicate the operation of Super Multi DVD Drive D...

Page 10: ...em Always turn the power OFF when connecting or disconnecting the cable 3 Jumper Connector This jumper determines whether the drive is configured as a master or slave Changing the master slave configuration takes effect after power on reset 4 Analog Audio Output Connector Provides output to a sound card analog signal Generally you need this to play a regular audio CD 5 Digital Audio Output Connect...

Page 11: ...it Board A Remove the Cabinet in the direction of arrow 4 See Fig 1 3 B Release 2 hooks a and remove the CD Tray drawing forward C Remove the Main Circuit Board in the direction of arrow 5 D At this time be careful not to damage the 4 connectors are positioned at left and bottom sides of the Main Circuit Board 2 MECHANISM ASSY DISASSEMBLY 2 1 Pick up Unit A Release screws B B Separate the Pick up ...

Page 12: ...2 2 Pick up A Release 1 screw C and remove the Pick up Pick up Unit Pick up C C Fig 2 2 12 ...

Page 13: ...01 A03 021 028 029 452 032 452 020 021 050 014 413 413 413 001 413 430 010 009 420 008 011 012 005 035 016 015 004 006 A B C D E F G H 1 2 3 4 5 013 452 024 024 452 031 027 026 033 025 430 419 020 449 023 003 002 13 14 EXPLODED VIEW ...

Page 14: ...hanged conditions of disc and change in operating temperature Jitter The 16 value of the time variation between leading and trailing edges of a specific I3 I11 pit or land as measured by Time Interval Analysis Deviation The difference between a fixed value of Pit length and Land length TOC Table Of Contents in the Lead in Area the subcode Q channel contains information about the Tracks on the disc...

Page 15: ...pitch p Radial Direction Iw A O a a Groove Land Radial Error Signal The Groove wobble Average center Actual center CD ROM READ ONLY DISC a 30nm ITEM CD ROM CD R CD RW Standard Yellow Book Orange Book II Orange Book III Record Not available Write once Re Writeable Tracking Signal I11 Itop 0 6 0 6 0 55 M11 0 70 HF Modulation Read Laser Power mW 0 5 mW 0 7 mW 1 0 mW Jitter 35 nsec 35 nsec 35 nsec Ref...

Page 16: ...t and Land on the disc It is so called WORM Write Once Read Many CD It is composed of polycarbonate layer Organic dye layer Reflective layer and Protective layer Gold Silver Reflective layer is used to enhance the reflectivity According to the kinds of Organic dye layer it is divided by Green CD Gold CD Blue CD Laser Wavelength 780 nm Laser Power read 0 7 mW Recording Power 8x 14 20mW 16x 25 35mW ...

Page 17: ... reading is enabled by the difference of reflectivity It is possible to overwrite about 1000 times Laser Wavelength 780 nm Laser Power Read 1 0mW Recording Power Erase 4 18mW Write 6 45mW When disc rewriting new data is overwritten previously recorded data Polycarbonate layer has a Pre Groove which make a track Lens H D Beam Spot Focusing Lens Laser Spot at Constant Read Intensity Reflected Light ...

Page 18: ...Spot Recorded Mark Reflected Light Signal Reflected Light Signal Below ORP Mark Too Short At Optimum Record Power ORP Above ORP Mark Too Long Time 6 Writing process of CD RW Disc Write Power Erase Power Read Power Groove Crystal Amorphous Amorphous Recorded state lower reflectivity Melting quenching Heating gradual cooling Crystal phase Erased state higher reflectivity ...

Page 19: ...Area Lead out Area Center hole Clamping and Label Area Information Area PCA PMA Test Area Count Area Diameter 15 mm Diameter 45 mm Diameter 120 mm Unrecorded Disc Tsl 00 35 65 Tsl 00 15 05 Tsl 00 13 25 Tsl 99 59 74 00 00 00 in out Test Area for performing OPC procedures Count Area to find the usable area immediately in T A Tsl start time of the Lead in Area as encoded in ATIP PMA Program Memory Ar...

Page 20: ...ad_In area so that general Driver can read it Because PCA and PMA area exist before Lead In area General CD Player or CD ROM Drive can t read these areas 9 OPC and ROPC 1 OPC Optimum Power Control This is the first step of writing process because CD writer has its own laser power value and media have different writing characteristics This is determined by the Writing characteristic speed temperatu...

Page 21: ...a close Reference B level value c Normalization of B level is used to eliminate the effect of reflectivity fluctuation The reflected B level value is normalized by the disc reflectivity itself CD R RW Media Write Strategy Determination PCA Test Area Program Area PMA Area Lead In Area Lead out Area OPC PCA Count Area ROPC Recording Capacity of CD R RW 74Minute Recording media 2048 Byte Sector X 75 ...

Page 22: ...25 The differences of DVD R RW DVD R RW discs and DVD ROM 1 Recording Layer LPP Land Pre Pit DVD R RW Disc DVD R RW Disc 0 74um 3T 0 4um DVD ROM Read Only Disc ...

Page 23: ...itch 0 74 0 74 0 74 0 74 0 74 0 74 Minimum pit length 0 4 0 44 0 4 0 4 0 4 0 4 Modulation 0 6 0 6 0 6 0 6 0 6 0 6 Channel bit rate 26 16MHz 26 16MHz 26 16MHz 26 16MHz 26 16MHz 26 16MHz Wobble Frequency 140KHz 140KHz 817 4KHz 817 4KHz Addressing 26 16MHz 26 16MHz Wobble LPP Wobble LPP Wobble ADIP Wobble ADIP Read Power mW 0 7 0 1 0 7 0 1 Write Power mW JItter 8 8 8 8 9 9 Bondinglayer Polycarbonate ...

Page 24: ...ing layer dye Disc substrate Adhesive layer Protective layer Reflective layer Dye layer Substrate Laser beam Disc structure Disc structure Recording Recording is done by changing the organic dye layer and the substrate with a laser when a strong is applied to a disc the temperature of the ortanic dye material goes up the dye is decomposed and the substrate changes at the same time At this time a d...

Page 25: ... Recording layer Phase change material Dielectric layer Disc substrate DVD RW Adhesive layer Protective layer Reflective layer Dielectric layer Recording layer Phase change material Dielectric layer Disc substrate Disc structure Recording principles Recording When a high power laser is applied to the recording material it melts and then becomes amorphous with a low reflection coefficient when it q...

Page 26: ...lses a blocked write strategy where each single mark is created by one continuous pulse 1 1st Method Using Pulsed Write Strategy 3T NRZI T 3 2Tw Ttop dTtop dTle Pb top top le Pp Channel bits N 3 only the top pulse T first pulse lead time dT dT NRZI T 4 2Tw Tw Ttop Tmp Tmp Tlp dTtop dTle Pb top top le lp mp Pp Channel bits N 4 the top pulse T multi pulse T and last pulse T first pulse lead time dT ...

Page 27: ...Tw 1 25Tw dTtop 4 dPp4 Ttop 4 Tlp Ttop 4 Ttop 4 Tmp Tmp Tlp Tlp Tmp N 3 T cm 3 can be optimized individually N 4 T cm 4 x N 3 T T T T P shall be 0 1mW top mp lp w w top c Pp Actual write power Pb Bias Power dPp Additional power Only be applied for the 3T and 4T marks Pc Cooling power Especially at higher recording speeds optimum cooling down of the recording layer after writing a mark may be neede...

Page 28: ...31 5 Writing Pulse Wave Form of DVD RW NRZI Channel bits 2Tw Tw Ttop dTtop Pp Pe Tmp mp T dTera Pp Actual write power Pe Erase Power Pb Bias Power Pb 0mW Tmp ...

Page 29: ...corded Disc PSN 23080H 27080H 27480H 28480H 2A480H 30000H 260540H 261940H 262940H 263940H 267940H in OUT Disc Center Rim area Center hole 1st transition area 2nd transition area Clamping Zone 3rd transtion area Information Zone Diameter 15 mm Diameter 16 mm Diameter 22 mm Diameter 33 mm Diameter 44 mm Diameter 120 mm Disc Center Rim area Inner Disc Count Zone Outer Disc Count Zone 2 Layout of DVD ...

Page 30: ...f OPC algorithm performed in IDT Zone Lead in Zone Lead out Zone Data Zone Inner Disc Test Zone Outer Disc Test Zone Unrecorded Disc PSN 2A480H 2A7C80H 2DC80H 30000H 260540H 262940H 265940H 266140H in OUT Center hole 1st transition area 2nd transition area Clamping Zone 3rd transtion area Information Zone Diameter 15 mm Diameter 16 mm Diameter 22 mm Diameter 33 mm Diameter 44 mm Diameter 120 mm Di...

Page 31: ...ce EFM demodulator CiRC error correction Audio DAC Buffer Memory controller CSS controller Atapi interface control Data PLL Servo ADC Focus tracking control output Sled control output CAV Spindle control P up Unit HOP 8541T IC101 RF AMP HD153722TF CD DVD IC301 R8J32005FP TE CSO GEN FE GEN DRAM U COM SRAM IC302 Flash ROM ...

Page 32: ... 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 K...

Page 33: ...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 aut...

Page 34: ...UM 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 board reading the regional code Receiving data from the MPEG 2 board and output through the monitor If the board is setting to the regional code 1 for the U S A Check the received regional code to number 1 all or not transfer the data to VGA card in accordan...

Page 35: ...VCC 5 3V AVCC 5 3V DVD HIGH OUT X00 TOP_VIEW X00 X00 x xk x xk x xk 0 1 0 1 CP0054AH VREF NC VR3_680 VR4_680 for DVD for CD CD0 DVD0 IN IC 07 IC 06 IC 08 IC 09 IC 10 AGND AGND AGND AGND AGND AGND AGND AVCC 5 3V AVCC 5 3V R8 10k BYG144RE AGND AGND AVCC 5 3V CP0036AA VREF B1 TOP_VIEW B3 A1 A4 SW 1 3 2 1 4 5 6 10 9 8 7 6 2 3 4 5 4 5 1 2 3 9 10 32 31 30 29 2827 26 25 24 23 22 21 20 19 18 17 11 12 13 1...

Page 36: ...H DVD L CD 26 THERM O output voltage for controlling temperature 27 VC165 reference voltage input 1 65V 28 F O signal Hologram Unit output F 29 E O signal Hologram Unit output E 30 EF1 O signal Hologram Unit output EF1 31 EF2 O signal Hologram Unit output EF2 32 EF3 O signal Hologram Unit output EF3 33 EF4 O signal Hologram Unit output EF4 34 RF O signal Hologram Unit output RF 35 WRF O signal Hol...

Page 37: ...d A D B C k x EF1 EF4 EF2 EF3 This signal is generated in RF IC IC101 HD153722TF and controls the pick up s left and right shift to find to track on Disc 3 RF Signal A B C D This signal is converted to DATA signal in DSP IC IC301 R8J32005FP 40 Pick Up module Photo Diode Tracking Focusing Infrared Iaser k F H E G A D B C A D B C k F H E G Offset TE Tp Sub2 Main Tp 2 Sub1 Track Center F E D C A B H ...

Page 38: ...C buffer 2 5VREF Buffer S H B H 36 S H MU X AM P APCDAC REDA WRDA SCLK SDATA WDEN 16 32 13 31 14 37 32 33 85 76 75 CN101 IC101 HD153722TF IC301 R8J32005FP BCNT 9 10 TCPH 36 72 106 R340 R342 C331 49 46 45 66 65 61 108 C334 DESCRIPTION OF CIRCUIT 1 ALPC Automatic Laser Power Control Circuit 1 1 Block Diagram ...

Page 39: ... the other one is used at writing The logical WRGATE2 signal which is switched between reading and writing changes the two APCDAC The ALPC loop supplies same currency IAPC to Laser Diode Driver LDD during reading and writing There is another ALPC which controls Full Scale DAC FsDAC FsDAC determines scale of WDAC of Laser Diode Driver MPU monitors write power level of FMON signal and changes FsDAC ...

Page 40: ...imized Focus Error Signal FE generates from focus error detection block in RF IC HD153722 using Double knite Edge method DVD spot size Detection method CD Focus Gain and path can be changed at the RF IC HD153722 according to the disc and the resulting output FE HD153722 4pin is input to DSP IC HD153722 100pin The Focus Search operation is using FE PE Signal therefore check FE PE signals when Focus...

Page 41: ...01 HD153722TF IC301 R8J32005FP MPPO A D B C G HAVC LS to V14 6 103 117 L P F L P F SPPO DVD A1 A4 A2 A3 CD EF1 EF2 EF3 EF4 K E F Sled Compensator DAC SL2 119 SL1 118 A A B B SLED MOTOR Unit TRD R348 IC601 M63041 AFP TACT TACT EN1 EN2 CTL1 CTL2 REF 1 65V TOIN 39 42 20 21 36 37 SL2 2 SL1 3 SL1IN SL2IN A B 8 10 A B 6 9 SL2N SL1N SL2P SL1P C339 1 65V C381 C340 R347 1 65V R374 R349 R384 R350 ...

Page 42: ...SLED MOTOR Unit A D B C K F H E G G HAVC LS to V14 L P F L P F 47 76 77 75 EQ MIRR DET AGC TOP HOLD 60 59 BOTTOM HOLD TE1 MIRRTOPH MIRRBOTH C118 GND 39 TZC MIRR TEIN VREF1 VREF1 SL2 D A C Tracking Compensator IC301 R8J32005FP 103 Sled Compensator A D C 55 58 M U X Short Seek Algorithm Loog Seek Algorithm D A C 118 117 119 TRD SL1 Track Counter and Timer R337 C328 GND MIRR TE1 TZC TE IP2MIRR C117 G...

Page 43: ...rsion Digital Equalizer Block and D A Conversion in R8J32005FP the output signal TRD R8J32005FP 117pin is input to Drive IC 39pin The drive output signal TACT TACT generated according TOIN M63041AFP 39pin and drives tracking actuator in the P U unit 3 2 2 Sled Servo The working distance of tracking actuator is too short to cover whole disc radius Sled Servo make P U move by little and little so th...

Page 44: ...10x CAV DVD R 4 DVD 16x CAV DVD ROM Single When drive read PRESS CD Closed Session CD R RW the spindle motor is controlled using FG CAV Spindle Servo FG signal M63041AFP 19pin input to SFG in DSP IC IC301 86pin The spindle controller in DSP IC uses SFG as spindle rotation frequency feedback therefore the FG CAV Spindle Servo doesn t work well if FG generation is abnormal The spindle controller PWM...

Page 45: ... 4x DVD RW 2 4x 4x CD R 4x 8x 16x 24x 32x 40x CD RW 4x 8x 10x 16x 24x When drive write DVD RAM R RW R RW CD R CD RW the spindle motor is controlled using Wobble CLV Spindle Servo The WOBSIG signal HD153722TF 46pin input to DSP IC R8J32005FP 56pin The DSP Controller in R8J32005FP uses WOBSIG as linear velocity feed back therefore the Wobble CLV Spindle Servo doesn t work well when WOBSIG signal is ...

Page 46: ...46 RDGATE 45 LO_ZB SPDSH 44 IDGATE 43 BLANK 42 41 PWDETO 40 TZC 39 GND4 38 MPDSH SPDSH 37 RFPDSH 36 WFPDSH 35 WGATE 34 RLDON 33 SPBLVL TISH2 32 LNDTRK 31 WBLSH 30 GND5 29 BHC 28 VDD5 3 3V 27 AWOBSIG 26 RFHLD TISH1 76 77 SUMF SUMF2 78 RFIN 79 SRVREF 80 FVREFO 81 IREFT 82 VREF1 83 HAVC 84 SA 85 SB 86 SC 87 SD 88 TRP 3 3V VDD2 89 TRN 90 FOP 91 FON 92 MA 93 MB 94 MC 95 MD 96 GND2 97 WRFIP LPSIN1 98 WR...

Page 47: ...000p 0 15u 0 1u 0 1u 0 12u 0 12u 0 47u 0 033u 0 033u 0 1u 0 033u 0 068u HPF fo 1KHz M U X M U X M U X M U X RFIN RF SUM SUB RGA RF AGC HP2 ID DET Pick I F S H LPP TE BALANCE FE WRF Serial Cont Reg VREF Power Cont R OPC OPC TIE SIGM APC MIRR DEFECT S H S H S H LE LPS HP3 RF EQ EQ AUTO 4 main 2 TRP TRN to TE 4 sub 2 FOP FON SUMF2 EQOP N IP2 MIRR pin MIRR BPO SPBLVL SIGM VCC1 PWWMON BHOUT PHBETA TCE ...

Page 48: ...ed terminal 5V 18 VRDC2N PWRMON External capacitor required Terminal to connect laser driver control filters for APC read SH monitor output terminal 19 VRDCN External components required Terminal to connect laser driver control filters for APC read 20 VRDC External components required Terminal to connect laser driver control filters for APC read 21 WAG1 External capacitor required Terminal to conn...

Page 49: ...l LPP output pulse width control clock input terminal WOB BPFf0 auto tracking clock input terminal 50 DFT Digital Output Defect detection output terminal 51 SVCLK Digital Input Renesas test input terminal 52 SVSYNC Digital Input Renesas test input terminal 53 SCLK Digital Input Serial I F clock input terminal 54 SDATA Digital Input Output Serial I F data input output terminal 55 SDEN Digital Input...

Page 50: ...put RF differential input terminal 78 RFIN Differential Input RF differential input terminal 79 SRVREF Analog Input DSP supply voltage 3 3V input terminal 80 FVREFO Analog Output 2 5V reference bias voltage output terminal 81 IREFT External resistor required Terminal to connect reference current setting external resistor 82 VREF1 Analog Output 2 1V reference bias voltage output terminal 83 HAVC An...

Page 51: ...BIAS VREFC VSSA W1LPF0 W1LPF1 W1LPF2 VCCA PDIAGB DA0 DA2 CS1FXB CS3FXB DASPB UCS1B UCS0B CPWRB CPRDB A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 VDD VSS A10 A9 A8 A7 A6 A5 VSSIO VCCIO A4 A3 A2 A1 A0 CPU15 CPU14 CPU13 CPU12 CPU11 CPU10 CPU9 CPU8 CPU7 CPU6 CPU5 CPU4 CPU3 CPU2 CPU1 CPU0 VCCIO VSSIO ROUT VCCA LOUT ADIPVR1 ADIPVRT ADIPINP VSSA VSSA XCO XCI VCCA R8J32005FP Helios 2 Top View 1 2 3 4 5 6 7 8 ...

Page 52: ...MRSTB TESTB 1 2 ROUT DOUT LOUT DVD DVD Auth BCA SSEQ MSEQ RA 12 10 0 DWE RD 15 0 DRAS DCAS RAMCL DQMU DQML DACKB CS3FXB DREQ CS1FXB PDIAGB DASPB DA2 IOCS16B IORDY ZIOWB HINTRQ HRSTB ZIORB DATA 15 0 DA1 DA0 SFG TZC BLANK DEFECT LED LNDTRK LDD TLD JFF 1 0 DFF 1 0 TCSHSPBLV LSRERR DCKE W2LPF 2 0 H8S CPU ADC PUTEMP DRVOFSP ADGATEB INT0B FOK CPWRB CPRDB UCS2B A 20 0 CPU 15 0 INT1B INT2B NMI UCS0B UCS1B...

Page 53: ...7 TCSHSPBLV 109 VRDC2N 14 VSSRQ 46 DSLADJ2 78 VCCIO 110 VSSA 15 HEATRUN 47 ARSTB 79 VSSIO 111 VCCA 16 CSEL 48 FMSW 80 WRGATEB 112 VRDC2NREF 17 AMUTE 49 VSSIO 81 SRFH 113 PUTEMP 18 VCCIO 50 VCCIO 82 SRFL 114 DRVOFSP 19 VSSIO 51 DEFECT 83 WRSTOP 115 DRVOFSM 20 CSW3 52 IP1LPPIN 84 LNDTRK 116 FOD 21 CSW2 53 VDD 85 LSRON 117 TRD 22 CSW1 54 VSS 86 SFG 118 TVDP 23 VCCRQ 55 IP2MIRR 87 TLD 119 TVDN 24 EEPR...

Page 54: ...REF33 173 VDD 205 A18 237 CPU6 142 DFF1 174 VSS 206 A17 238 CPU5 143 DFF0 175 VSSIO 207 A16 239 CPU4 144 JFF1 176 VCCIO 208 A15 240 CPU3 145 JFF0 177 DATA1 209 A14 241 CPU2 146 JFH 178 DATA14 210 A13 242 CPU1 147 DRLPF2 179 DATA0 211 A12 243 CPU0 148 DCLPF2 180 DATA15 212 A11 244 VCCIO 149 DRLPF1 181 DREQ 213 VDD 245 VSSIO 150 DCLPF1 182 ZIOWB 214 VSS 246 ROUT 151 DRLPF0 183 ZIORB 215 A10 247 VCCA...

Page 55: ...t 5TO 5V Tolerant Three State Output 5IO 5V Tolerant Input Output PW Power Supply Pin GND Ground Pin Pin Name Pin No I O Destination Function EFMP EFMN 139 140 AI AFE RF signal normal phase input pin RF signal counter phase input pin VREF33 141 AO External Capacitor Reference voltage Vcc 2 output pin DFF1 DFF0 142 143 AO External Capacitor DutyFeedBack LPF connect pin JFF1 JFF0 144 145 AO External...

Page 56: ...error sampled at 352 8 kHz LPSA 104 AI AFE Lens positioning lens error sampled at 88 2 kHz LPSB 105 AI AFE Lens positioning B sampled at 88 2 kHz TCPH 106 AI AFE Tracking center BETA top hold sampled at 44 1 176 4 kHz TIBH 107 AI AFE Tilt error BETA bottom hold sampled at 44 1 176 4 kHz BCENT 108 AI AFE BETA center sampled at 176 4 kHz VRDC2N 109 AI AFE APC read system laser driver control pin sam...

Page 57: ...quest signal ZIOWB 182 5I ATAPI ATAPI IF write strobe pulse ZIORB 183 5I ATAPI ATAPI IF read strobe pulse IORDY 184 5TO ATAPI ATAPI IF control signal drive Ready DACKB 185 5I ATAPI ATAPI IF DMA acknowledge HINTRQ 186 5TO ATAPI ATAPI IF drive interrupt signal IOCS16B 187 5TO ATAPI ATAPI IF control signal 16 bit transfer PDIAGB 193 5IO ATAPI ATAPI IF control signal CS1FXB CS3FXB 196 197 5I ATAPI ATA...

Page 58: ...nt monitor write erase block RFPDSH 76 O AFE Laser control sampling pulse Front monitor read block TCSHSPBLV 77 O AFE VFO1 track center signal sample hold pulse SPBLVL running OPC sampling pulse Pit end WRGATEB 80 O PU Write gate signal SRFH SRFL 81 82 O PU I V amplifier gain switch HI side I V amplifier gain switch for binary I V amplifier gain switch Low side WRSTOP 83 I PU Write stop gate signa...

Page 59: ...ystem SCLK 66 O AFE LDD AFE LDD microcomputer I F transfer clock signal Pin Name Pin No I O Destination Function DOUT 2 TO ATAPI Digital output pin ROUT LOUT 246 248 AO ATAPI Audio Lch Rch output Pin Name Pin No I O Destination Function FEMCK 67 O AFE Front End LSI clock XCO 254 O X TAL Crystal oscillation 33 8688 MHz XCI 255 I X TAL Crystal oscillation 33 8688 MHz 1 4 5 Serial Communication Inter...

Page 60: ... IO Load Switch CPU general port 2 6 Loader out sensor LOADIN 34 IO Load Switch CPU general port 2 5 also connected to the CPU interrupt port INT8 Loader in sensor EJECTSW 36 IO Eject Switch CPU interrupt port INT6 EJECTSW interrupt request ACTFLG 37 IU DRVR CPU interrupt port INT7 Pick up protect flag DRVEN1 38 IO DRVR CPU general port 0 7 6ch driver control 1 DRVEN2 40 IO DRVR CPU general port 0...

Page 61: ... CS0 CPWRB 201 IO Flash SRAM H8S WRB CPRDB 202 IO Flash SRAM H8S RDB A 20 A 19 17 A 16 0 203 204 205 206 207 208 209 210 211 212 215 216 217 218 219 220 223 224 225 226 227 IO O IO Flash SDRAM H8S A 20 H8S A 19 17 H8S A 16 0 CPU 15 0 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 IO Flash SDRAM H8S D 15 0 b Flash SRAM ...

Page 62: ...ulation 1 DVD modulation 2 DVD modulation 3 4 DVD R CD R monitor 0 DVD R CD R monitor 1 DVD R CD R monitor 2 DVD R CD R monitor 3 5 DVD RW monitor 0 DVD RW monitor 1 DVD RW monitor 2 DVD RW monitor 3 6 PI C1 PI C1 PI C1 PI C1 7 PO C2 PO C2 PO C2 PO C2 8 SLOCK SLOCK SLOCK SLOCK 9 DSYNC DSYNC DSYNC DSYNC 10 CLVCK CLVCK CLVCK CLVCK 11 BLEND BLEND BLEND BLEND 12 SYWINCOR SYWINCOR SYWINCOR SYWINCOR 13 ...

Page 63: ...g power supply 3 3V SLICE Analog power supply 3 3V DPLL Analog power supply 3 3V AUDIO ADIP Analog power supply 3 3V PLL multiplication VCCIO 18 50 78 91 159 176 191 222 244 PW DSP I O power supply 3 3V VSS 30 54 174 189 214 GND DSP core GND VSSR 1 64 GND SDRAM GND VSSRQ 7 14 27 35 GND SDRAM I O GND VSSA 93 110 121 123 133 137 155 252 253 GND Analog GND LVDS Analog GND Servo A D Analog GND Servo D...

Page 64: ... inverted output2 7 GND GND 8 SL2 Slide inverted output2 9 SL1 Slide non inverted output1 10 SL1 Slide inverted outptut1 11 GND GND 12 U Motor drive output U 13 V Motor drive output V 14 W Motor drive output W 15 ACTFLG Pickup protect flag output 16 OPOUT Operational amplifier output 17 OPIN Operational amplifier inverted input 1 18 SLLIM Input terminal for slide current limit 19 FG Frequency gene...

Page 65: ... VM2 SL1 SL1 SL2 SL2 VM3 LO LO 5VCC FO FO TO TO TL TL ACTFLG FG ACTRST OPOUT FOIN TOIN TLIN OPIN REF EN1 EN2 5VCC 100 100 100 100 100 100 100 17k 35k 10k 5VCC 25k U 5VCC 5VCC 5VCC 5VCC 5VCC 5VCC 5VCC 5VCC 5VCC V VM1 W SL1 SL1 SL2 VM2 SL2 FO FO TO TO TL 5VCC TL LO VM3 LO ...

Page 66: ...5 A 1 45 DQ7 44 DQ14 43 DQ6 42 DQ13 41 DQ5 40 DQ12 39 DQ4 38 DQ11 38 DQ3 35 DQ10 34 DQ2 33 DQ9 32 DQ1 31 DQ8 30 DQ0 29 A0 25 OE 28 Vss 27 CE 26 Vcc 37 BYTE 47 Vss 46 A14 2 A13 3 A12 4 A11 5 A10 6 A9 7 A8 8 A19 A18 A17 A7 9 N C 10 WE 11 RESET 12 N C 13 N C 14 RT BY 15 16 17 18 A6 19 A5 20 A4 21 A3 22 A2 23 A1 24 ...

Page 67: ...der Cell Matrix Y Gating Data Latch Chip Enable Output Enable Logic Program Voltage Generator Erase Voltage Generator RY BY Buffer Input output Buffer DQ15 to DQ0 State Control Command Register STB STB OE Y Decoder Timer for program Erase CE WE Vcc Vss RY BY BYTE RESET ...

Page 68: ...able WE Write Enable RY BY Ready Busy Output RESET Hardware Reset Pin Temporary Sector Unprotection BYTE Select 8 bit or 16 bit mode N C Pin Not Connected Internally Vss Device Ground Vcc Device Power Supply 71 Pin Description Logic Symbol A 1 20 A19 to A0 DQ15 to DQ0 16 or 8 CE OE WE RESET RY BY BYTE ...

Page 69: ...tting FE R334 C325 Pin 106 pin 112 LD Driver TE R337 C328 PE R335 C326 01 Laser Power Adjust using RD Power WR Power Erase Power 02 High Frequency NRZI skew Adjust 03 Data Slice Equalizer Boost Raw Slice Equalizer Frequency Adjust 04 Circuit Offset Adjust 05 Focus Amp Adjust for DVD Dual MPU DSP IC301 AFE IC101 Driver IC601 Pickup Pin 85 98 4 40 FFC Slider FPC Slider 6 8 10 Focus 34 35 DVD Dual Di...

Page 70: ...338 40 R347 C339 39 MPU DSP IC301 AFE IC101 Driver IC601 Pickup Pin 85 98 6 4 PE R335 C326 5 4 6 FFC Setting TE R337 C328 Tracking 30 31 Slider FPC Slider 6 8 10 Slider FPC Slider 6 8 10 R347 C339 39 06 Focus Amp and Total Amp Adjust 07 Tracking Amp Adjust 08 Lens DAC Lens Position Adjust 09 Servo Loop Gain Adjust MPU DSP IC301 AFE IC101 Driver IC601 IC201 Pickup All Disc Pin 99 100 FFC FFC Settin...

Page 71: ...ider 6 8 10 DVD RAM Disc MPU DSP IC301 AFE IC101 Driver IC601 Pickup Pin 85 98 77 78 68 69 FFC Setting C130 131 Slider FPC Slider 6 8 10 DVD RAM Disc MPU DSP IC701 AFE IC101 Driver IC601 Pickup Pin 85 98 77 78 8 FFC Setting SIM R336 C327 Slider FPC Slider 6 8 10 10 Unwritten Slice Level Adjust for DVD RAM 11 Focus Offset Adjust for DVD ROM CD R RW 13 Focus Offset Adjust for DVD RAM Data Error puls...

Page 72: ...ting TE R337 C328 TRD R348 C339 TILT 36 37 39 117 6 TE 30 31 MPU DSP IC301 AFE IC101 Driver IC601 Pickup DVD R RW Disc FFC Setting FE R334 C325 FE 34 35 FE R346 C338 40 4 14 Tilt Adjust for DVD RAM 15 Tilt Adjust for DVD R RW DVD R RW CD R RW 16 Focus Deviation Adjust Pin 85 98 77 78 MPU DSP IC301 AFE IC101 Driver IC601 Pickup DVD R RW Disc FFC Setting TE R337 C328 TE 30 31 Slider FPC Slider 6 8 1...

Page 73: ...01 Driver IC601 Pickup DVD R Disc FFC Setting WobSIG Slider FPC Slider 6 8 10 56 46 46 Pin 85 98 77 78 MPU DSP IC301 AFE IC101 Driver IC601 Pickup DVD R RW Disc FFC Setting C130 131 Slider FPC Slider 6 8 10 68 69 48 18 Lens Sensitivity Adjust 19 Spindle Offset Adjust 20 ADIP BPF Read Timing Adjust for DVD R RW 21 Focus Offset Adjust for DVD R RW DVD R RW DID ...

Page 74: ...C Slider 6 8 10 Pin 85 98 MPU DSP IC701 AFE IC101 Driver IC601 Pickup All Disc FFC Setting FE R334 C325 Focus 34 35 Tracking 30 31 Slider FPC Slider 6 8 10 TE R337 C328 PE R335 C326 R346 C338 R348 C339 40 6 5 4 39 22 RTZ TimeOut Fail 23 Focus Servo Tracking Servo Fail ...

Page 75: ...ckup LDD part 3 Exchange IC301 DSP 4 4C0x to 4C4x Data Slice Adjust NG 1 Check solder of IC101circumference No 03 pin 76 IC103 L150 L151 2 Exchange IC101 AFE 3 Exchange IC301 DSP 5 4C5x to 4C7x EQ Boost Adjust NG 1 Check solder of IC101circumference pin 76 IC103 L150 L151 2 Exchange IC101 AFE 3 Exchange IC301 DSP 6 4C80 RAW Slice Level Adjust NG 1 Check solder of IC101circumference pin 76 IC103 L1...

Page 76: ...01circumference 454x pin 4 5 6 pin 85 98 FE_Servo R334 C325 PE_Servo R335 C326 3 Exchange Pickup 4 Exchange IC101 AFE 5 Exchange IC301 DSP 4 458x Tracking Amp Adjust NG 1 Check Pickup FFC Connection No 07 2 Exchange Pickup 3 Check solder of IC101circumference pin 4 5 6 pin 85 98 TE_Servo R337 C328 4 Exchange IC101 AFE 5 Exchange IC301 DSP 5 45Ax Lens DAC Adjust NG 1 Check Pickup FFC Connection No ...

Page 77: ...1 RAM Disc NG Exchange RAM Disc No 12 4A6x RAM Only for PID 2 Exchange Pickup 3 Exchange IC101 AFE 4 Exchange IC301 DSP 11 4A8x Focus Offset Adjust NG 4A88 RAM Disc NG Exchange RAM Disc No 13 RAM Only for Data 1 Exchange Pickup 2 Exchange IC101 AFE 12 4B0x Tilt Adjust NG RAM Only 1 Check Pickup FFC Connection No 14 2 Exchange Pickup 3 Check solder of IC101circumference pin 10 11 R340 C331 R341 C33...

Page 78: ...E_Servo R337 C328 4 Exchange IC101 AFE 5 Exchange IC301 DSP 19 55xx Lens Shift Tilt Adjust NG 1 Check Pickup FFC Connection No 15 CD Disc Only 2 Exchange Pickup 3 Check solder of IC601 circumference 4 Exchange IC601 5 Check solder of IC701 circumference 6 Exchange IC301 20 56xx Focus Level Adjust NG 1 Check Pickup FFC Connection No 06 2 Exchange Pickup 3 Check solder of IC101circumference pin 4 5 ...

Page 79: ...R Disc Exchange Disc No 20 1 Check Pickup FFC Connection 2 Exchange Pickup 3 Exchange IC101 AFE 4 Exchange IC301 DSP 25 5Cxx Signal Amp Error 1 Check Pickup FFC Connection No 06 2 Exchange Pickup 3 Check solder of IC701circumference pin 4 5 6 pin 85 98 PE_Servo R335 C326 4 Exchange IC101 AFE 5 Exchange IC301 DSP 26 5Dxx Focus Offset Adjust NG 1 Check Pickup FFC Connection No 21 DVD R RW R RW in Da...

Page 80: ... 5 Check solder of IC101circumference pin 4 5 6 pin 85 98 FE_Servo R334 C325 6 Exchange IC101 3 2101 2102 Tracking Fail 1 Check Pickup FFC Connection No 23 2 Exchange Pickup 3 Check solder of IC601circumference 4 Exchange IC601 Driver 5 Check solder of IC101circumference pin 4 5 6 pin 85 98 TE_Servo R337 C328 6 Exchange IC101 4 2000 2010 Spindle Fail 1 Check Spindle FFC Connection No 19 2 Check so...

Page 81: ...8 1 5V VDD analog IC101 AFE HD153722TF 3 3V VDD analog IC301 Helios2 R8J32005FP 3 3V VCC analog PIC601 Driver M63041AFP 5VCC 32 Focus Tracking Tilt VM3 26 Loading IC301 Helios2 R8J32005FP 3 3V VCC digital IC301 Helios2 R8J32005FP VCCA 54 247 AUDIO IC302 Flash ROM MBM29LV160BE 70TN NC13 13 VCC37 37 IC 2 8V REG 12V VSO 5 3 5VR 5 3 L151 1 5D L354 1 5A L602 5VP 2 5 2 8 L601 Q202 Q203 Tr_SW IC701 XC640...

Page 82: ...8 91 159 176 191 222 244 256 12 VCC A 3 3V 3 3V 98 99 111 122 129 138 153 13 Clock 34MHz 33 8688MHz 254 255 14 MRSTB 3 3V High 5 15 AFE VCC 5 3V 5 3V 17 75 IC101 VDD 3 3V 3 3V 12 27 57 70 79 89 16 OP amp VCC 5 3V 5 3V 4 17 IC201 VC165 1 65V 8 18 7ch DRV 5VCC 5V 5V 32 19 IC601 VM3 5V 5V 26 20 VM1 2 12V 12V 5 22 21 REF 1 65V 1 65V 42 22 Pick up AVCC 5 3V 5 3V 8 23 VC21 2 1V 13 24 VC165 1 65V 28 25 V...

Page 83: ... slice circuit of RF signal from AFE PLL the objects ADC and DAC for SERVO and ADC for ADIP detection Among these own poor Digital of DSP and AFE serial IF can detect by this self diagnostic function AFE Poor detection of AFE is restricted to detection of a limitation item Since the greater part of the function is analog signal processing AFE serves as a register in AFE and a check which accepts i...

Page 84: ...cillating correctly it is the defect of MPU or an oscillation element defect and part exchange is performed in order of DSP and X301 4 The defect of Flash ROM Although the clock of DSP is oscillating correctly and the power supply circuit is also outputting normal voltage when LED does not blink at all at the time of a power supply injection and Eject SW does not react either poor Flash ROM is the...

Page 85: ...t output differential a Vm 5V Tracking actuator driver analog input output differential Vm 5V Tilt actuator driver analog input output differential Vm 5V A motor actuator and its correspondence pin A control mode setup by the control terminal Signal CH SPDL MT STEP MT Load MT Focus ACT Track ACT Tilt ACT Input 1 SPIN 2 SL1IN 41 LOIN 40 FOIN 39 TOIN 38 TLIN 3 SL2IN Reference 42 REF 1 65V Output 12 ...

Page 86: ...ject SW Limit SW Analog Front End HD153722TF 100pin TQTF RENESAS 3 3V Reg IC XCM403AA01SR RST TOREX 2 8V 1 5V Reg IC XC6409BV05PR RST TOREX 5 0V SW_Reg IC BD9703FP ROHM OPU HOP 8541T HITACH ME Interface connector DVD CD DSP DVD CD Servo ATAPI R8J32005FP 256pin LQFP RENESAS DVD codec CD codec LPP ADIP decorder Servo DSP ATAPI IF Microprocessor 7ch Driver M63041AFP SPDL SLED Fo Tr Ti LD RENESAS PU B...

Search results

Summary of Contents for GSA-4120B

Reviews:

Related manuals for GSA-4120B

Brands by name

Popular brands

LG GSA-4120B, Service Manual

Search results

Summary of Contents for GSA-4120B

Reviews:

Related manuals for GSA-4120B

Brands by name

Popular brands