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