Sony
KMS-2608/J1N, MDM-7A, NEW
specifications
Printed Wiring Board Display Section
Specifications
Parts list
Section Diagrams
Error rate display
Forced Reset
Supplied accessories
Section Disassembly
Section Electrical Adjustments
Setting the Test Mode
How to
Page 44
MDS-JE440
6-12.
PRINTED WIRING BOARD – DISPLAY SECTION –
44 44
Page 43
Page 45
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Page 43
Page 45
Contents
Outputs
Specifications
Inputs
Where purchased Power requirements
Supplied accessories
SELF-DIAGNOSIS Function
General
Items of Error History Mode Items and Contents
Table of Contents
Disassembly
Diagrams
Exploded Views
Section Service Notes
Safety CHECK-OUT
Flexible Circuit Board Repairing
Leakage
JIG for Checking BD Board Waveform
IOP
Record Precedure
Main Board Component Side
Checks Prior to Parts Replacement and Adjustments
Forced Reset
Retry Cause Display Mode
Bit Binary
Hexadecimal Binary
Bit When Binary
Higher Bits Lower Bits Hexa Details
Section General
Section Disassembly
Front Panel Section
Main Board
PT BOARD, VOL-SEL Board
Mechanism Deck Section MDM-7A
BD Board
Section Test Mode
Precautions for USE of Test Mode
Setting the Test Mode
Exiting the Test Mode
Selecting the Test Mode
Display Details Mark Group
Operating the Continuous Playback Mode
MID
OUT
MENU/NO
Test Mode Displays
Mode display
Error rate display
Functions of Other Buttons
When Memory NG is Displayed
Meanings of Other Displays
Automatic SELF-DIAGNOSIS Function
Information
Check before replacement
Section Electrical Adjustments
Parts Replacement and Adjustment
Adjustment flow
YES
Precautions for Adjustments
Precautions for Checking Laser Diode Emission
Precautions for USE of Optical PICK- UP KMS-260B
Using the Continuously Recorded Disc
Checks Prior to Repairs
Auto Check
Other Checks
Traverse Check
Traverse Waveform
Play Check MO Error Rate Check
CD Error Rate Check
Focus Bias Check
Self-Recording/playback Check
Laser Power Adjustment
Initial Setting of Adjustment Value
Temperature Compensation Offset Adjutment
Traverse Adjustment
Iop NV Save
Focus Bias Adjustment
YES
Error Rate Check
Auto Gain Control Output Level Adjustment
CD Auto Gain Control Output Level Adjustment
MO Auto Gain Control Output Level Adjustment
Adjusting Points and Connecting Points
Section Diagrams
For schematic diagrams
For printed wiring boards
Circuit Boards Location
Block Diagrams BD Section
MDS-JE440
Main Section
Sclk Cclk Control Generator OSC
Display Board
BD Board
Main Board
Printed Wiring Board BD Section
Semiconductor
PIN
PIN Function
Printed Wiring Board Main Section Side a
Printed Wiring Board Main Section Side B
PIN
MDS-JE440
Schematic Diagram Main /3 See page 47 for IC Block Diagrams
Printed Wiring Board Power Section
Printed Wiring Board Display Section
Schematic Diagram Display Section See page 34 for Waveforms
IC Block Diagrams
IC101 CXA2523AR BD Board
IC400 LA5643 Main Board
IC PIN Functions
Pin No Pin Name Function
MNT0 FOK
MNT1 Shck
MNT2 Xbusy
MNT3 Sloc
Mvci
Asyo
Asyi
Avdd
Tfdr
Ffdr
Frdr
FS4
IC1 M30805SGP System Control Main Board
HLDA/ALE
Section Exploded Views
Chassis Section
Not supplied FL771
Mechanism MDM-7A
202 220 201 213 215 216 205 218 207
259
Section Electrical Parts List
Description Remarks Ref. No
IC TC7WU04FUTE12R
SWITCH, Keyboard MENU/NO
Display KEY-SW
Main
CN1
Diode MA8047-TX
Main VOL-SEL
Vibrator
Sony Corporation
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