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MDS-JE770 specifications Memo
Models:
MDS-JE770
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Specifications
Parts list
MDS-JE770 SECTION DIAGRAMS
Notes on chip component replacement
1Wire flat type 17core CN3 5Claw
Forced Reset
MDS-JE770 SECTION DISASSEMBLY
Procedure
Error rate display
MDS-JE770 SECTION ELECTRICAL ADJUSTMENTS
Page 71
Image 71
MDS-JE770
MEMO
71
Page 70
Page 72
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Contents
MINIDISC DECK
SPECIFICATIONS
9-873-890-11
MDS-JE770
SELF-DIAGNOSISFUNCTION
Genera l Power requirements
Supplied accessories
MDS-JE770
MDS-JE770
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Selecting the Test Mode
Table of Error Codes
TABLE OF CONTENTS
3. DISASSEMBLY
6. DIAGRAMS
NOTES ON LASER DIODE EMISSION CHECK
MDS-JE770 SECTION SERVICE NOTES
Notes on chip component replacement
Flexible Circuit Board Repairing
MDS-JE770
JIG FOR CHECKING BD BOARD WAVEFORM
MDS-JE770
Record Precedure
Display Precedure
KSN-260E
OPTICAL PICK-UPBLOCK TYPE DISCRIMINATION
MDS-JE770
KSN-260B
@CN406
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS
FORCED RESET
Procedure
MDS-JE770
RETRY CAUSE DISPLAY MODE
Procedure
Hexadecimal t Binary Conversion Table
Reading the Display
MDS-JE770
Reading the Display
Parts Identification
MDS-JE770 SECTION GENERAL
BUTTON DESCRIPTIONS
Main unit
3-1.DISASSEMBLY FLOW
MDS-JE770 SECTION DISASSEMBLY
1Wire flat type 17core CN3 5Claw
3-2.UPPER CASE
3-3.FRONT PANEL SECTION
3Connector CN830 2 Connector CN390
1 Wire flat type 27core CN2 7 MAIN board
3-4.MAIN BOARD
3-5.PT BOARD, VOL-SELBOARD SP model
3 Connector CN400 2 Wire flat type 23core CN1
4 Remove the solder five portion
3-6.MECHANISM DECK SECTION MDM-7A
3-7.OVER LIGHT HEAD HR901, BD BOARD
MDS-JE770
2 Claw
3-8.HOLDER ASSY
3-9.LOADING MOTOR ASSY M103
MDS-JE770
5 Remove the claw Shift the slider in the arrow
3-10.SLED MOTOR ASSY M102, SLIDER
3-11.OPTICAL PICK-UP
MDS-JE770
1 Three screws M1.7, tapping
3-12.SPINDLE MOTER ASSY M101
MDS-JE770
2Spindle motor ASSY M101
4-3.EXITING THE TEST MODE
4-1.PRECAUTIONS FOR USE OF TEST MODE
4-2.SETTING THE TEST MODE
MDS-JE770 SECTION TEST MODE
Group
4-5.SELECTING THE TEST MODE
MDS-JE770
Display
MDS-JE770
4-5-1.Operating the Continuous Playback Mode
1. Mode display
2. Error rate display
4-6.FUNCTIONS OF OTHER BUTTONS
4-7.TEST MODE DISPLAYS
4-10.INFORMATION
4-11.WHEN MEMORY NG IS DISPLAYED
4-8.MEANINGS OF OTHER DISPLAYS
4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION
Check before replacement
MDS-JE770 SECTION ELECTRICAL ADJUSTMENTS
5-1.PARTS REPLACEMENT AND ADJUSTMENT
MDS-JE770
Adjustment flow
Optical pick-upflexible board
5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSION
5-4.PRECAUTIONS FOR ADJUSTMENTS
MDS-JE770
5-6-2.Laser Power Check
5-5.USING THE CONTINUOUSLY RECORDED DISC
5-6-1.Temperature Compensation Offset Check
Checking Procedure
Procedure
5-6-4.Auto Check
5-6-5.Other Checks
5-6-6.Traverse Check
5-6-9. Self-Recording/playbackCheck
5-6-8.C PLAY Check MO Error Rate Check
CD Error Rate Check
5-6-7.Focus Bias Check
Setting Procedure
5-7.INITIAL SETTING OF ADJUSTMENT VALUE
5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT
5-10.LASER POWER ADJUSTMENT
Adjusting Procedure
5-12.TRAVERSE ADJUSTMENT
5-11.Iop NV SAVE
Procedure
MDS-JE770
5-13.FOCUS BIAS ADJUSTMENT
Adjusting Procedure
5-14-2.MO Error Rate Check
5-14.ERROR RATE CHECK
5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT
5-14-1.CD Error Rate Check
MDS-JE770
5-17.ADJUSTING POINTS AND CONNECTING POINTS
BD BOARD SIDE A
BD BOARD SIDE B
KEY-SWboard MAIN board HP board KB board
MDS-JE770 SECTION DIAGRAMS
6-1.CIRCUIT BOARDS LOCATION
PT board
MAIN Board
For schematic diagrams
For printed wiring boards
WAVEFORMS -BD Board
IC190
6-2.BLOCK DIAGRAMS - BD SECTION
MDS-JE770
IC171
IC740
MAIN SECTION
IC310
IC550
Semiconductor
Location
Page
SemiconductorOVER
KMS - 260B/260E
BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2
MDS-JE770
Page
MDS-JE770
BOARD
Page44
MDS-JE770
IC440
MDS-JE770
Location
Semiconductor
MDS-JE770
Semiconductor
MDS-JE770
Location
MDS-JE770
6-10.SCHEMATIC DIAGRAM - DISPLAY SECTION
4747
VOL-SEL
PT BOARD
MDS-JE770
BOARD
MAIN BOARD 2/2 CN400 Page
6-12.SCHEMATIC DIAGRAM - POWER SECTION
4949
MDS-JE770
IC141
6-13.IC BLOCK DIAGRAMS
IC101 CXA2523AR BD BOARD
IC151 CXD2662R BD BOARD
MDS-JE770
IC500 AK4524 MAIN BOARD
IC440 M54641L MAIN BOARD
IC421 M5293L MAIN BOARD
MDS-JE770
6-14.IC PIN FUNCTION DESCRIPTION
IC101 CXA2523AR RF Amplifier BD BOARD
Desription
MDS-JE770
Pin No
Pin Name
VCO Voltage Controlled Oscillator
PLL Phase Locked Loop
MDS-JE770
Abbreviation EFM Eight to Fourteen Modulation
TFDR
MDS-JE770
Pin Name
IC1 M30803MG-106FPSYSTEM CONTROL MAIN BOARD
MDS-JE770
Pin No
ADA. LATCH
MDS-JE770
BEEP SW
MDS-JE770
MDS-JE770
IC760 MSM9201-04GS-KFL DRIVER DISPLAY BOARD
MDS-JE770
SECTION EXPLODED VIEWS
7-1.CHASSIS SECTION
supplied with J790
7-2.FRONT PANEL SECTION
MDS-JE770
not supplied
313
7-3.MECHANISM SECTION-1 MDM-7A
MDS-JE770
312
MDS-JE770
S102
HR901
M103
MDS-JE770
ELECTRICAL PARTS LIST
SECTION
Ref. No
MDS-JE770
MDS-JE770 DISPLAY HP KB KEY-SW
MDS-JE770
KEY-SW
MAIN
MDS-JE770 MAIN
Q490
MDS-JE770 MAIN
VOL-SEL
MDS-JE770 MAIN PT
MDS-JE770
MEMO
2001.05
MDS-JE770 REVISION HISTORY
Date
Description of Revision