Super Multi DVD Drive
P/NO 3828HS1047G August Printed in Korea
SERVICE MANUAL
MODEL GSA-4165B GSA-4167B GSA-4168B
TABLE OF CONTENTS
CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM
INTRODUCTION
1. Support feature and writable disc
2. Supported disc formats
FEATURES
1 General
3. Supported write method
5. Audio
4. Performance
1x CD = 150 kB/s
Recording tool
SPECIFICATIONS
Operating System
2.1 Applicable disc formats
2.4 Data capacity
2.5 RPC Regional Playback Control Phase2, No Region
3. DRIVE PERFORMANCE
3.2 Read/Write & Rotational speed
3.3 Data transfer rate
3.4 Access time 1/3 stroke
2.77, 5.54 Mbytes/s
4. Quality and Reliability
5. POWER REQUIREMENTS
8. Dimensions
6. AUDIO PERFORMANCE
Drive Activity Indicators
LOCATION OF CUSTOMER CONTROLS
Front Pane l
Drive activity indicator
IDE Interface Connector
Rear Pane l
Analog Audio Output Connector
Jumper Connector Digital Audio Output Connector
2. MECHANISM ASSY DISASSEMBLY
DISASSEMBLY
1. CABINET and CIRCUIT BOARD DISASSEMBLY
Emergency Eject Hole
2-2. Pick-up
PBF00 FRONT C.B.A
EXPLODED VIEW
PBM00 MAIN C.B.A
LightScribe only
Logical Erase
GLOSSARY
Multi session
1. Recording Layer
2. Disc Specification
The differences of CD-R/CD-RW discs and General CD-ROM
a=30nm
2 CD-R disc
3. Disc Materials
1 CD-ROM disc
Pigment
Lens
Focusing
4. Reading process of Optical Disc
Groove
6. Writing process of CD-RW Disc
5. Writing Process of CD-R Disc
Amorphous
1 Layout of CD-ROM disc
7. Organization of the PCA, PMA and Lead-in Area
2 Layout of CD-R/RW disc
8. Function of PCA and PMA area
1 PCA Power Calibration Area
1 OPC Optimum Power Control
9. OPC and ROPC
10. Writing Process of DISC
DVD-R/RW Disc LPP Land Pre-Pit DVD+R/RW Disc
The differences of DVD-R/RW, DVD+R/RW discs and DVD-ROM
0.4 um
1. Recording Layer
1 DVD-ROM
2. Disc Specification
3. Disc Materials
Single Layer
Disc structure
2 Recording format using organic dye material DVD-R/DVD+R
Disc structure
Recording principles
Disc structure
Data erased state
N = 3 only the top pulseTtop , first pulse lead-time dT top , dTle
4. Writing Pulse Wave Form of DVD+R
NRZI
NRZI
2 2st Method Using Blocked Write Strategy
Channel bits
5. Writing Pulse Wave Form of DVD+RW
NRZI
Ttop
1 Layout of DVD-ROM disc
Disc Center
Diameter 120 mm
2 Layout of DVD+R disc
Disc Center
3 Layout of DVD+RW disc
Diameter 120 mm
1. LightScribe Media
DiscOD Label Zone Control Feature Zone Clamping/Logo Zone Center Hole
LightScribe Media
Screen Printed Imaging Layer Clear Protective Coating
Laser Power Reference Write Strategy Control
2. Hardware Block Diagram
Label Printing
SERVO Signals
Optical Encoder Unit
3. MD Assy For LightScribe
OPU ID Movement Range L=21um
Encoder PCB Optical Encoder IC
Schematic of Enc PCB
4. Optical Encoder Assy
FFC 3PIN
Data Processing Flow
CD DATA PROCESSING
P-up Unit HOP-7632TS
R8J32007
2. Copy Protection and Regional Code Management Block
Block Diagram
HOST DVD PLAYER EMPEG2 B/D
In case of a disc enhanced movie of 3 titles
3. About Prevention the DVD-ROM from to be copy
If you want to play the disc prevented from the copy
Regional code
4. About the DVD-ROM Regional Code
Example The disc manufactured in the U.S.A, has the number one
1. Block Diagram of the PICK-UPHOP-7632TS
INTERNAL STRUCTURE OF THE PICK-UP
Signal Name
2. Pick up Pin Assignment
Signal Description
Tp/2
3. Signal detection of the P/U
Track Center
Main
CN101
CIRCUITDESCRIPTION OF 1. ALPC Automatic Laser Power Control Circuit
IC301 R8J32007
IC101 R2S35002
1-2. ALPC Automatic Laser Power Control Circuit
R2S35002
2. Focus Circuit
IC101
Disc
R2S35002
3. Tracking & Sled Circuit
IC101
Disc
Disc
IC101
R2S35002
Optical
3-2-1. Tracking Servo
3-2-2. Sled Servo
Optical
4. Spindle Circuit
4-1-1. Block DiagramFGCAV Servo
Pick-up
CD-RW 4x, 10x, 16x, 24x DVD-R 2x, 4x, 8x, 16xPCAV DVD-R DL 2x
4-2-1. Block Diagram Wobble CLV Servo
4-2-2. Wobble CLV Servo CD-R 4x, 8x, 16x, 24x, 32x
DVD-RW 1x, 2x, 4x DVD+R 2.4x, 4x, 8x, 12x, 16xPCAV
R2S35002
IC101 R2S35002 RF AMP Analog Signal Processor
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION
TOP VIEW
Pick
BALANCE
pin No
Pin Functions
pin Name
Type
pin No
Equalizer fc auto-adjustment control clock input terminal
pin Name
Type
Type
pin Name
pin No
max. voltage
Top View
IC301 R8J32007FPV Encoder, Decoder & DSP Singal Processor
R8J32007
Demodulate
1.2 Block Diagram
Descramble
Pin Name
1.3 Pin Table
Pin no
Pin no
Pin No
Data PLL/PRML Pin List
Pin Name
destination
Pin No
Servo Pin List
Pin Name
destination
Pin No
ATAPI Interface Pin List
Pin Name
destination
Pin No
Encoder Interface Pin List
Pin Name
destination
Pin No
Audio Interface Pin List
Pin Name
destination
Pin No
LSI/TEST Control Pin List
Pin Name
destination
Pin No
Power Supply/GND Pin List
Pin Name
Function
Package outline 42 PIN POWER SSOP 42P9R-K
IC601 R2S30202FP SPINDLE MOTOR AND 6CH ACTUATOR DRIVER
R2S3 0202FP
Page
Input/Output circuit diagram
02 High Frequency/NRZI skew Adjust
TROUBLESHOOTING GUIDE
01 Laser Power Adjust using RD Power/WR Power/Erase Power
03 Data Slice/Equalizer Boost/Raw Slice/ Equalizer Frequency Adjust
07 Tracking Amp. Adjust
06 Focus Amp. and Total Amp. Adjust
08 Servo Loop Gain Adjust
11 Focus Offset Adjust for DVD-RAM PID Amp
09 Unwritten Slice Level Adjust for DVD-RAM
10 Focus Offset Adjust for DVD-ROM, CD-R/RW
12 Focus Offset Adjust for DVD-RAM Data Error pulse
15 Focus Deviation Adjust
13 Tilt Adjust for DVD-RAM
14 Tilt Adjust for DVD-R/RW, DVD+R/RW, CD-R/RW
16 Focus Offset Adjust for DVD-R/RW, DVD+R/RW, CD-R/RW
19 ADIP BPF/Read Timing Adjust for DVD+R/RW
17 Lens Sensitivity Adjust
18 Spindle Offset Adjust
20 Focus Offset Adjust for DVD-R/RW, DVD+R/RWDID
All Disc
21 RTZ TimeOut Fail
22 Focus Servo/Tracking Servo Fail
Slider#6,8-10
Detail Error Code & Fail Analysis 1. Laser Power Initial Adjust
SSB Byte8,9
2. Adjusting Error during Disc Load Sequence Lead in Error
SSB Byte21,22
SSB Byte21,22
SSB Byte21,22
SSB Byte21,22
3. Loading Sequence Error Lead in Error
SSB Byte21,22
SW701
JR6 Power Supply System Diagram
5V in SW702
IC701
PCB Poor Analysis - Check list
HW Self- Diagnostic function 1. Self-Diagnostic Function by LED Blink
3 Is the clock of MPU in DSP oscillated correctly?
2 Does the power supply circuit operate normally?
4 The defect of Flash-ROM
1 IC601R2S30202FP 7ch driver
A control mode setup by the control terminal
3. Motor, Abnormalities in Actuator System
A motor & actuator and its correspondence pin
12V GND 5V
BLOCK DIAGRAM
Host IDE
OPUHOP-7632TS HITACHI ME