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HCD-MD373 service manual Schematic Diagram - Panel Section, Page
Models:
HCD-MD373
1
60
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Specification
Install
Parts list
HCD-MD373 SECTION DIAGRAMS
Notes on chip component replacement
Adjusting Points And Connecting Points
Cold Reset
Section Disassembly
Procedure
• Reading the Mechanism Error History Display
Page 60
Image 60
HCD-MD373
6-18.
SCHEMATIC DIAGRAM – PANEL SECTION –
(Page 55)
60 60
Page 59
Page 61
Page 60
Image 60
Page 59
Page 61
Contents
SPECIFICATIONS
Sony Corporation
9-928-998-12
SERVICE MANUAL
SELF-DIAGNOSISFUNCTION
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Table of Error Codes
Selecting the Test Mode
Notes on chip component replacement
Flexible Circuit Board Repairing
MODEL IDENTIFICATION - BACK PANEL
TABLE OF CONTENTS
3. DISASSEMBLY
6. DIAGRAMS
Ver 1.1
DRAWING OUT THE TRAY DURING POWER OFF
CLEANING THE OPTICAL PICKUP CD PLAYER
SECTION SERVICING NOTE
REMOVING THE INDICATION PLATE FL
SERVICE POSITION THE MD MECHANISM
SERVICE POSITION THE CD MECHANISM
SERVICE POSITION THE POWER BOARD
Power board
Cold Reset
Procedure 1: recommended
Procedure
Hot Reset
When errors occur
When no errors occur
Error History Display Mode
Aging Mode
• Reading the Mechanism Error History Display
•Reading the BD Error History Display
JIG FOR CHECKING BD MD BOARD WAVEFORM
Record Precedure
Display Precedure
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS
FORCED RESET
MAIN BOARD Component Side
Procedure
RETRY CAUSE DISPLAY MODE
Precedure
Reading the Display
Example
Reading the Display
Hexadecimal nBinary Conversion Table
SECTION GENERAL
LOCATION OF PARTS AND CONTROLS
Front Panel
Page
Page
SECTION DISASSEMBLY
3-1.CASE
3-2.FRONT PANEL
3-3.BACK PANEL
3-4.MAIN BOARD AND POWER TRANSFORMER
3-5.CD MECHANISM DECK
3-6.TRAY, GEAR AND CAM
3-7.CD BASE UNIT
3-8.OPTICAL PICK-UPSECTION OF CD KSS-213BA/F-NP
3-10.MD MECHANISM DECK
• Note for installation of Slider CAM
3-13.OVER WRITE HEAD
3-14.OPTICAL PICK-UPOF MD KMS-260B/J1N
3-15.SPINDLE MOTOR M901 AND SLED MOTOR M902 MD
4-1.PRECAUTIONS FOR USE OF TEST MODE
4-2.SETTING THE TEST MODE
Procedure 1: Press the
Procedure 2: Press the
4-5.SELECTING THE TEST MODE
4-5-1.Operating the Continuous Playback Mode
4-5-3. Non-VolatileMemory Mode EEP MODE
2. Error rate display
4-6.FUNCTIONS OF OTHER BUTTONS
4-7.TEST MODE DISPLAYS
1. Mode display
MEANINGS OF OTHER DISPLAYS
Contents
When Lit
When Off
SECTION ELECTRICAL ADJUSTMENTS
MD SECTION 5-1.PARTS REPLACEMENT AND ADJUSTMENT
5-4.PRECAUTIONS FOR ADJUSTMENTS
5-5.CREATING CONTINUOUSLY RECORDED DISC
Optical pick-upflexible board
5-6-1.Temperature Compensation Offset Check
Checking Procedure
5-6-2.Laser Power Check
Connection Checking Procedure
5-6-5.C PLAY Checking MO Error Rate Check
CD Error Rate Check
5-6-4.Focus Bias Check
5-6-6. Self-Recording/playbackCheck
5-7.INITIAL SETTING OF ADJUSTMENT VALUE
5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT
5-10.LASER POWER ADJUSTMENT
Setting Procedure
5-11.TRAVERSE ADJUSTMENT
Adjusting Procedure
Specified Value
Connection
5-12.FOCUS BIAS ADJUSTMENT
Adjusting Procedure
5-13.ERROR RATE CHECK
5-15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT
5-13-1.CD Error Rate Check
5-13-2.MO Error Rate Check
5-15.ADJUSTING POINTS AND CONNECTING POINTS
CD SECTION
BD MD BOARD SIDE A
BD MD BOARD SIDE B
HCD-MD373 SECTION DIAGRAMS
4040
6-1.CIRCUIT BOARDS LOCATION
TUNER UNIT is supplied as the assembled block
6-2.BLOCK DIAGRAMS – BD CD SECTION –
•SIGNAL PATH CD
HCD-MD373
Page
4242
– BD MD SECTION 1/2 –
R-chis omitted
Siganl path
– BD MD SECTION 2/2 –
Page
HCD-MD373
Page
4444
– MAIN SECTION –
HCD-MD373
Page
For schematic diagrams
For printed wiring boards
WAVEFORMS – BD CD SECTION –
– BD MD 1/2 SECTION –
6-3.PRINTED WIRING BOARD – BD CD SECTION –
• See page 40 for Circuit Boards Location
HCD-MD373
Page
6-4.SCHEMATIC DIAGRAM – BD CD SECTION –
•See page 67 for IC Block Diagrams
See page 45 for Waveforms
•See page 69 for IC Pin Functions
6-5.PRINTED WIRING BOARD - BD MD SECTION
•Semiconductor Location
HCD-MD373
Page
6-6.SCHEMATIC DIAGRAM – BD MD SECTION 1/2 –
•See page 65 for IC Block Diagrams
•See page 71 for IC Pin Functions
HCD-MD373
6-7.SCHEMATIC DIAGRAM - BD MD SECTION 2/2
•See page 48 for Printed Wiring Board
•See page 66 for IC Block Diagrams
HCD-MD373
6-8.SCHEMATIC DIAGRAM - SP SECTION
6-9.PRINTED WIRING BOARD – SP SECTION –
Page
Page
6-10.PRINTED WIRING BOARD – MAIN SECTION –
•See page 40 for Circuit Boards Location
HCD-MD373
Page
6-11.SCHEMATIC DIAGRAM – MAIN SECTION 1/3 –
• See page 68 for IC Block Diagrams
HCD-MD373
Page
6-12.SCHEMATIC DIAGRAM – MAIN SECTION 2/3 –
•See page 52 for Printed Wiring Board
•See page 68 for IC Block Diagrams
HCD-MD373
6-13.SCHEMATIC DIAGRAM - MAIN SECTION 3/3
Page Page
See page 75 for IC Pin Functions
See page 52 for Printed Wiring Board
6-14.SCHEMATIC DIAGRAM – MD DIGITAL SECTION –
•See page 67 for IC Block Diagrams
HCD-MD373
Page
6-15.PRINTED WIRING BOARD – MD DIGITAL SECTION –
Page Page Page Page
HCD-MD373
• See page 40 for Circuit Boards Location
6-16.SCHEMATIC DIAGRAM – AMP SECTION –
HCD-MD373
Page
Page
6-17.PRINTED WIRING BOARD – AMP SECTION –
HCD-MD373
Page Page
See page 40 for Circuit Boards Location
6-18.SCHEMATIC DIAGRAM - PANEL SECTION
HCD-MD373
Page
6-19.PRINTED WIRING BOARD – PANEL SECTION –
• Semiconductor Location
HCD-MD373
Page
6-20.SCHEMATIC DIAGRAM – POWER SECTION –
HCD-MD373
Page Page
6-21.PRINTED WIRING BOARD – POWER SECTION –
HCD-MD373
Page
Page
6-22.SCHEMATIC DIAGRAM – BD SWITCH SECTION –
6-23.PRINTED WIRING BOARD – BD SWITCH SECTION –
6-24.SCHEMATIC DIAGRAM – LOADING SECTION –
6-25.PRINTED WIRING BOARD – LOADING SECTION –
6-26.IC BLOCK DIAGRAMS
• BD MD Board 1/2
IC101 CXA2523AR
IC152 BH6511FS-E2
• BD MD Board 2/2
IC121 CXD2654R
• BD CD Board
IC101 CXD2587Q
C103 CXA2568M-T6
• MD DIGITAL Board
• MAIN Board 3/3
IC171 LB1641
• MAIN Board 1/3
IC302 MC14052B
6-27.IC PIN FUNCTIONS
Tracking error signal input
• IC101 RF Amplifier CXA2523AR BDMD board
MNT0 FOK
Data input/output for DRAM
TFDR
IC501 MASTER CONTROL M30620ECFP-A21MAIN board
STEREO
SECTION EXPLODED VIEWS
7-1.CASE AND FRONT PANEL SECTION 11 20
17 16
7-2.CHASSIS SECTION 52
59 #3
61 54
7-3.MD MECHANISM DECK MDM-5A 113 110 107
124 113 111112 117 118 114
120 122 123
103 102 101
7-4.MD BASE UNIT MBU-5A 152 164
163 170166
162 161
157 152 152
7-5.CD MECHANISM DECK CDM55A-5SBD32
201 204 203
214 215 217 214
Ver
7-6.CDBASE UNIT BU-5SBD32
255 256
253
258 251
7-7.CD MECHANISM DECK CDM55C-5BD32
315 317
314 314
Ver 1.1
7-8.CDBASE UNIT BU-5BD32
BU identification: metal turntable without magnet
355 356
353 354
SECTION ELECTRICAL PARTS LIST
BD CD
BD MD
BD CD
MD DIGITAL
BD MD
MD DIGITAL LOADING MAIN
MAIN
MAIN
Ref. No
MAIN
Part No
PANEL
POWER
PANEL
POWER
HCD-MD373
Ver
Ref. No
MEMO
HCD-MD373
HCD-MD373 REVISION HISTORY
BU-5BD32
1999.08
Date