INTRODUCTION This service manual provides a variety of service It can write as much as 4.7Gbytes of digital data into information. DVD-R/RW/RAM/+R/+RW disc, and can read as It contains the mechanical structure of the Super much as 4.7Gbytes of digital data stored in a Multi DVD Drive and the electronic circuits in DVD-ROM/R/RW/RAM/+R/+RW disc.
Page 4
3. Supported write method 1) DVD-R: ....Disc at Once and Incremental Recording 2) DVD-RW:....Disc at Once, Incremental Recording and Restricted Overwrite 3) DVD-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 4.
SPECIFICATIONS 1. SYSTEM REQUIREMENTS -CPU: IBM Compatible Pentium 4 2.4GHz (or faster) (For High speed, 2.4GHz or faster recommended.) -128MB Memory or greater 2. SUPPORTING OPERATING SYSTEM * Operating System * Recording tool Windows Millennium Edition (Me) (1) Nero(Ahead) Window 2000 Professional (2) In CD(Ahead) Window XP Home Edition, Professional (3) Power Producer Gold (Cyber Link)
Page 6
2.4 Data capacity • User Data/Block DVD-ROM/R/RW/RAM/+R/+RW ..2,048 bytes/block CD (Yellow Book) ..........2,048 bytes/block(Mode 1 & Mode 2 Form 1) 2,336 bytes/block (Mode 2) 2,328 bytes/block (Mode 2 Form 2) 2,352 bytes/block (CD-DA) 2.5 RPC (Regional Playback Control) Phase2, No Region 3.
Page 8
146 x 41.3 x 184.6mm Front bezel (WxHxD) 149 x 42 x 6 mm 9. Mass ..........Approx. 0.87+/-0.03 kg * Which is not provided with Circuit Diagram of this model. Please Contact the friendly staff of LG Service Care at: Website http: //www.LGEservice.com...
LOCATION OF CUSTOMER CONTROLS Front Panel Emergency Eject Hole Disc Tray Eject Button Drive Activity Indicators NOTE: The actual drive may be different from this design. 1. Disc tray 3. Emergency Eject Hole This is the tray for the disc. Place the disc on the Insert a paper clip here to eject the Disc tray ejected disc tray, then lightly push the tray (or manually or when there is no power.
Page 10
Rear Panel IDE Interface Connector Analog Audio Output Connector Jumper Connector Power Connector Digital Audio Output Connector NOTE: The actual drive may be different from this design. 1. Power Connector 3. Jumper Connector Connects to the power supply (5-and 12-V DC) of This jumper determines whether the drive is the host computer.
DISASSEMBLY 1. CABINET and CIRCUIT BOARD 1-3. Cabinet and Main Circuit Board A. Remove the Cabinet in the direction of arrow (4). DISASSEMBLY (See Fig. 1-3) 1-1. Bottom Chassis B. Release 2 hooks (a) and remove the CD Tray A. Release 4 screws (A) and remove the Bottom Chassis drawing forward.
GLOSSARY ATIP Absolute Time in Pre-groove. With an additional modulation of the “Wobble”, the “Groove” contains a time code information. Wobble The pre-groove in the Disc is not a perfect spiral but is wobbled. With : – A typical amplitude of 30 nm –...
The differences of CD-R/CD-RW discs and General CD-ROM 1. Recording Layer Recordable CD has a wobbled pre-groove on the surface of disc for laser beam to follow track. Track pitch(p) a=30nm Read-only Disc CD-ROM (READ-ONLY DISC) Radial Direction Radial Error Signal 0.4~0.5 um Groove Land...
3. Disc Materials 1) CD-ROM disc • It is composed of Silver _ colored aluminum plate and Reflective layer. • Groove (Pit) of aluminum plate make a track. • Laser wavelength : 780 nm, Laser Power (Read): 0.5mW • Signal is detected by the difference of reflective beam intensity between “pit”...
3) CD-RW Disc Label Printing Protective Layer Dielectric Layer(TL) Recording Layer Dielectric Layer(UL) Substrate (Polycarbonate) Groove Laser Beam • It is composed of polycarbonate layer, alloy(silver, arsenic) layer, aluminum reflectivity layer, protective layer. • An crystalized alloy layer is transformed into noncrystalized by the laser heat. Therefore, writing and reading is enabled by the difference of reflectivity.
5. Writing Process of CD-R Disc Incident (Write) Laser Power (Read) (Read) Laser Spot a b c d e f Position (Time) Laser Below "ORP"– Mark Too Short Spot Reflected At Optimum Record Power ("ORP") Light Signal Above "ORP" – Mark Too Long Recorded Mark Time...
7. Organization of the PCA, PMA and Lead-in Area 1) Layout of CD-ROM disc Disc Center Diameter 120 mm Diameter 46 mm Diameter 15 mm Center hole Clamping and Label Area Information Area Read Only Disc Lead-in Area Program Area Lead-out Area 2) Layout of CD-R/RW disc Disc Center...
8. Function of PCA and PMA area 1) PCA (Power Calibration Area) • PCA area is used to determine the correct Laser Power for a disc. – Method 1 : PCA area is divided by a track. – Method 2 : The previous Calibration value is referred. –...
2) ROPC (Running Optimum Power Control) • Variable primary factor of Optimum Power – Change of Power sensitivity on the Disc. (limited to 0.05 *Po) – Wavelength shift of the laser diode due to the operating temperature change. – Change of the Spot aberration due to the Disc skew, Substrate thickness, Defocus.
The differences of DVD-R/RW, DVD+R/RW discs and DVD-ROM 1. Recording Layer DVD-ROM (Read Only Disc) 0.4 um DVD-R/RW Disc (Land Pre-Pit) DVD+R/RW Disc...
2. Disc Specification DVD-ROM DVD-R DVD-RW DVD+R DVD+RW Single-Layer Dual-Layer Media Type Read Only Read Only Phase change Phase change 4.7GB 8.54GB 4.7GB 4.7GB 4.7GB 4.7GB User data capacity Wavelength 650nm 650nm 650nm 650nm 650nm 650nm Reflectivity 45~85% 18~30nm 45~85% 18~30% 45~85% 18~30nm...
Page 24
2) Recording format using organic dye material (DVD-R/DVD+R) * The format that records data through the creation of recorded marks by changing the organic dye material with a laser beam. > Disc structure DVD-R DVD+R Adhesive layer Adhesive layer Protective layer Protective layer Reflective layer Reflective layer...
Page 25
3) Recording format using phase-change recording material (DVD-RW/DVD+RW) * Data is recorded by changing the recording layer from the amorphous status to the crystalline status, and played back by reading the difference of the reflection coefficient. [ Amorphous : Non-crystalline ] >...
4. Writing Pulse Wave Form of DVD+R For different speed ranges, different write strategies can be used. This document specifies 2 options: - a pulsed write strategy, where each single mark is created by a number of subsequent separated short pulses.
Page 27
2) 2 Method : Using Blocked Write Strategy NRZI Channel bits 1.25T top,3 1.25T 3T mark top,3 top,4 1.25T 4T mark top,4 1.25T 5T mark top,4 1.25T Etc. top,4 N = 3 : T (cm = 3) can be optimized individually. N >...
6. Organization of the Inner Drive Area, Outer Drive Area, Lead-in Zone and Lead-out Zone 1) Layout of DVD-ROM disc Disc Center Diameter 120 mm Diameter 44 mm Diameter 33 mm Diameter 22 mm Diameter 16 mm Diameter 15 mm Clamping Center 3rd transtion...
Page 30
3) Layout of DVD+RW disc Disc Center Diameter 120 mm Diameter 44 mm Diameter 33 mm Diameter 22 mm Diameter 16 mm Diameter 15 mm Clamping Center 3rd transtion Information Zone Zone hole area 1st transition area Rim area 2nd transition area Unrecorded Disc Lead -out Zone Lead-in Zone...
2. Copy Protection and Regional Code Management Block Block Diagram Change the "KEY" HOST DVD R8J32006FP PLAYER (EMPEG2 B/D) Scrambled MPEG Data KEY Management Control 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.
3. 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.
4. About the DVD-ROM Regional Code Regional code U.S.A PRI. VIR DISC ROM - DRIVE MPEG-2 BOARD VGA CARD MONITOR Transfer to Receiving If the board is setting to the regional The disc has MPEG-2 board data from the code 1 for the U.S.A..the regional reading the MPEG-2...
2. Pick up Pin Assignment Signal Name Signal Description GND(OEIC) Ground for OEIC Vcc(OEIC) Power supply for OEIC(+5V) Vc(OEIC) Reference voltage input for OEIC(+2.3V) GAINSW OEIC output gain control (High:Low gain, Middle:Middle gain, Low:High gain) E3+F3 Single OEIC output EF3 Single OEIC output B Single OEIC output D E4+F4...
3. Signal detection of the P/U Infrared Iaser Pick-Up module Focusing Tracking Photo Diode 1) Focus Error Signal ==> (A+C)-(B+D) This signal is generated in RF IC (IC101 : HD153724TF) and controls the pick-up’s up and down to focus on Disc. 2) Tracking Error Signal (DPP Method) ==>...
DESCRIPTION OF CIRCUIT 1. ALPC (Automatic Laser Power Control) Circuit 1-1. Block Diagram...
Page 39
1-2. ALPC (Automatic Laser Power Control) Circuit ALPC function DVD/CD anlaog front-end IC(IC101 HD153724TF) is for constant power control purpose. Based on the accurate power sensor(FMON) in P/U, ALPC feedback loop maintains constant power level against laser diode’s temperature variation. The ALPC loop amplifies(10x) the FMON signal to enhance the accuracy of read power level control.
Page 42
3-1-2. Block Diagram (Seek) IC101 HD153724TF MPPO (A+D)-(B+C) HAVC SPPO (EF1~EF4) A,B,C,D [(EF1+EF4)-(EF2+EF3)] Disc Optical VREF1 C114 Motor unit Pick-up A+B+C+D HOP-7532TS TEIN VREF1 TACT- TACT+ HAVC MIRR MIRR SUMF BOTTOM RFIP HOLD HOLD SLED MOTOR RFIN Unit MIRRTOPH MIRRBOTH C136 C137 C328...
Page 43
3-2-1. Tracking Servo The aim of tracking servo is to make laser beam trace the data track on disc. Tracking Error(TE) Signal is generated from tracking error detected block in HD153724 using DPP(Differential Push-Pull) Method and DPD (Differential Phase Detection) Method. DPP Method uses not only main beam(A, B, C, D) but also side beam(EF1~EF4) for correcting DC offset generated in Push-Pull Method.
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION IC101 (HD153724TF) : RF AMP Analog Signal Processor Pin Assignment SUMF/SUMF2 RFIP MCLK RFIN IP1/LPPOUT SRVREF IP2/MIRR FVREFO WOBSIG IREFT RDGATE VREF1 LO_ZB/SPDSH HAVC IDGATE RFHLD/TISH1 HD153724TF BLANK PWDETO (TOP VIEW) GND4 (3.3V)VDD2 RLDON WGATE...
Page 47
Block Diagram *3300p *3300p/0.1u Lo-Z Function by IDGATE VREF1 fast mode „ = 3.3us 0.47u *3300p/0.068u (*2) 4700p (Ri=1k/20k switch) molk to MIRR DEFECT 0.068u RFIP EQOP RF SUM/SUB RFIN EQON SUBP,N (RGA) AUTO 0.068u SUMF2 EQOS to WRF IP1/LPPOUT ATEST LPPMON/EQOS/RRF/WRF IP2/MIRR...
Page 48
• Pin Description Pin no. Pin Name Type Function Not connected Analog-Output Lens error signal output terminal Not connected Analog-Output Focal error output terminal Analog-Output PE output terminal Analog-Output Tracking error output terminal TEIN Analog-Input TZC detecting TE signal input terminal SIGM Analog-Output Analog signal monitoring output terminal...
Page 49
Pin no. Pin Name Type Function BLANK Digital-Output Record/non-record detecting output terminal / BD detecting output terminal. RFHLD/TISH1 Digital-Input RF hold control signal input terminal / Tilt servo detecting sampling pulse input terminal. IDGATE Digital-Input ID Select pulse input terminal. LO_ZB/SPDSH Digital-Input Low-z (reversal) pulse input terminal / Pickup input...
Page 50
Pin no. Pin Name Type Function AGHPF2 External-capacitor required Terminal to connect AGC high pass filter capacitor. AGHPF1 External-capacitor required Terminal to connect AGC high pass filter capacitor. AGFU External-capacitor required AGC filter connecting terminal. AGFR External-capacitor required AGC filter connecting terminal. VCC1 Power Power supply connected terminal(5V).
Page 55
1.4 Pin Functions It corresponds to the following signs as a pin I/O specification. AI : Analog Input IOU : Standard Input/Output with Pull Up AO : Analog Output 5I : 5V Tolerant Input AIO : Analog Input/Output 5O : 5V Tolerant Output Standard Input 5TO : 5V Tolerant Three State Output...
Page 56
1.4.2 Servo Pin List Pin Name Pin No. Destination Function DEFECT Defect (scratch detect) signal BLANK Blank signal input (also connected to the H8S interrupt port INT5) Tracking Zero Crossing signal input DRVR Spindle FG pulse (also input to the H8S interrupt port INT4) DRVR Tilt drive signal (PWM output) DRVR...
Page 57
1.4.3 ATAPI Interface Pin List Pin Name Pin No. Destination Function HRSTB ATAPI ATAPI- IF control signal (host reset signal) ATAPI ATAPI- IF register address signal DATA[15:0] 180, 178, ATAPI ATAPI- IF data bus 172, 170, 168, 166, 164, 162, 161, 163, 165, 167, 169, 171,...
Page 58
1.4.4 Encoder Interface Pin List Pin Name Pin No. Destination Function IP1LPPIN PID area identification signal/LPP input signal IP2MIRR PID area identification signal/MIRR signal WOBSIG Wobble signal input LSRERR Laser error signal RDGATE PLL input switch signal LOWZB Input impedance switch control signal/SPDSH; running OPC sampling pulse (Pit top) IDGATE ID/data switch signal...
Page 59
1.4.5 Serial Communication Interface Pin List Pin Name Pin No. Destination Function LDBUSY LDD serial IF busy microcomputer I/F (transfer enable signal) LDD2 SCK(WDEN2) LDD2 microcomputer I/F (transfer enable signal) RFDEN AFE/LDD microcomputer I/F (transfer enable signal) SDATA AFE / LDD AFE/LDD microcomputer I/F (transfer data signal 3V system) SCLK...
Page 60
1.4.8 H8S Micro-Processor Pin List (a) CPU Pin Name Pin No. Destination Function HEATRUN ATAPI CPU general port 1- 0: Off heat run test input CSEL ATAPI CPU general port 1- 6: ATAPI CSEL AMUTE Audio Mute ckt CPU general port 0- 2: Audio mute CSW3 CPU general port 1- 7: Cartridge detect signal 3 CSW2...
Page 61
(b) Flash/SRAM Pin Name Pin No. Destination Function UCS1B SRAM H8S/CS1, also functions as the CPU general port 2- 0 UCS0B Flash H8S/CS0 CPWRB Flash/SRAM H8S/WRB CPRDB Flash/SRAM H8S/RDB A[20] Flash/SDRAM H8S/A[20] A[19:17] 204, 205 H8S/A[19:17] A[16:0] 207, 208 H8S/A[16:0] 209, 210 211, 212 215, 216...
Page 62
1.4.9 LSI/TEST Control Pin List Pin Name Pin No. Destination Function ROMICE Non-maskable CPU interrupt port (sensed at the falling edge) MRSTB RESET IC Master reset input TESTB1 Test select TESTB2 TEST0 User test/CPU general port 2 TEST1 Test monitor can be set as the following table by a register.
Page 63
1.4.10 Power Supply/GND Pin List Pin Name Pin No. Function 32, 53, DSP core power supply (1.5V) 173, 188, VCCR 3, 62 SDRAM power supply (3.3V) VCCRQ 10, 23, SDRAM I/O power supply (3.3V) 31, 39. VDDAA 1.5V system analog power supply (1.5V) WPLL1, 2 VCCA Analog power supply (3.3V) : Dedicated for LVDS Analog power supply (3.3V) : Servo A/D...
Page 64
IC601 (R2S30200FP) : SPINDLE MOTOR AND 6CH ACTUATOR DRIVER Pin Layout R2S3 0200FP Package outline : 42 PIN POWER SSOP (42P9R-K) Pin Function No Pin name Function Pin name Function SPIN Spindle control voltage input Reference voltage input SL1IN Slide control voltage input1 LOIN Loading control input SL2IN...
Page 79
Power Supply System Diagram NTMT L601 DRV IC601 R2S30200FP VM1 #22 Motor power supply 1(Spindle) SW701 VM2 #05 Motor power supply 2(Slide) ROHM BD9703FP S711 S711 IC702 LDD CN101 5.3V VSO(5.3) 5VDC/DG IMSY-CNT-N45PO Pickup 5-ELCO-JR5 Converter OPEN OPEN VSO #13 Vin=12.00V Vo=5.30V L602...
Page 81
HW Self- Diagnostic function 1. Self-Diagnostic Function by LED Blink. • Basic operation: At JR5, MPU is included in DSP, MPU accesses each peripheral (inside, exterior) device, and discover a defect by the ability of a read/write of data to be performed correctly. Since MPU operates by the program with a built-in Flash-ROM, when abnormalities are in MPU, Flash-ROM, and these Data-Bus &...
Page 82
2. LED does not blink at all at the time of a power supply injection. Eject-SW does not react. (1) Is it normal to the exterior Bus (Data-Bus, Address-Bus, control signal system) of MPU? Viewing — check: -- a short circuit, opening, etc. •...
Page 83
3. Motor, Abnormalities in Actuator System The drive circuit of a motor & actuator consists of the three ICs IC601(R2S30200FP). The work of each IC is as follows. (1) IC601(R2S30200FP) : 7ch driver Spindle motor driver: 180° audio drive Type, an analog input, a PWM drive, a Vm=12V. Stepping motor driver X2: analog input, a PWM drive (differential), a Vm=12V Loading motor driver: Input/Output PWM drive, Vm=5V.
BLOCK DIAGRAM Flash-ROM (2MByte) MBM29LV160BE OPU:HOP-7532TS or Equivalent (HITACHI ME) (FUJITSU) Disc Interface Loading motor connector Analog Front End DVD/CD DSP Analog HD153724TF (DVD/CD/Servo/ATAPI) audio Disc R8J32006FP 100pin-TQTF Slide motor 256pin LQFP motor (RENESAS) Unit (RENESAS) mechanism DVD-codec Host IDE CD-codec LPP/ADIP decorder 7ch-Driver...