Sony MDDISCAM DCM-M1 User manual

MICROFILM
SERVICE MANUAL
MINIDISC AV RECORDER
US Model
Canadian Model
E Model
SPECIFICATIONS
DCM-M1
Model Name Using Similar Mechanism NEW
Mechanism Type CT-DCMM1-164
Model Name Using Similar Mechanism NEW
Mechanism Type MT-DCMM1-163
MD
Section
Lens
Section
– Continued on next page –
Ver 1.1 2000. 03
With SUPPLEMENT-1
(9-927-635-81)

– 2 –
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
5. Check the B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C
during repairing.
• Do not touch the soldering iron on the same conductor of
the circuit board (within 3 times).
• Be careful not to apply force on the conductor when sol-
dering or unsoldering.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

–3 –
SERVICE NOTE ................................................ 4
1. GENERAL
Getting Started ...................................................................... 1-1
Recording – Basics ............................................................... 1-5
Playback – Basics ................................................................. 1-7
Advanced Recording Operations .......................................... 1-8
Advanced Playback Operations ............................................ 1-11
Editing ................................................................................... 1-14
Drawing/Effect ....................................................................... 1-19
CustomingYour Camcorder .................................................. 1-21
Using with Other Equipment ................................................. 1-23
Additional Information............................................................ 1-26
Quick Reference .................................................................... 1-28
2. DISASSEMBLY
2-1. Main Control Switch Unit............................................. 2-3
2-2. Cabinet (R) Section..................................................... 2-3
2-3. Zoom Switch Unit ........................................................ 2-3
2-4. Power Board ................................................................ 2-4
2-5. Ether Board ................................................................. 2-4
2-6. Jack Board................................................................... 2-4
2-7. Remote Terminal Unit.................................................. 2-5
2-8. Battery Case Assembly............................................... 2-5
2-9. Microphone Block........................................................ 2-5
2-10. Main Board .................................................................. 2-6
2-11. Lens Block (CT-DCMM1-164) ..................................... 2-6
2-12. Hinge Cover................................................................. 2-6
2-13. LCD Block.................................................................... 2-7
2-14. LCD Cabinet Assembly (U) ......................................... 2-7
2-15. LCD Board................................................................... 2-7
2-16. Fluorescent Tube ......................................................... 2-8
2-17. Touch Panel, LCD Module (LCD4301) ....................... 2-8
2-18. EVF Block .................................................................... 2-8
2-19. VF Board ..................................................................... 2-9
2-20. VF Lens Assembly ...................................................... 2-9
2-21. BL Board...................................................................... 2-9
2-22. Upper Panel Assembly................................................ 2-9
2-23. Mechanism Deck (MT-DCMM1-163)........................... 2-10
2-24. CLV Board ................................................................... 2-10
2-25. Stepper Block Assembly (M5811)............................... 2-11
2-26. Holder Assembly ......................................................... 2-11
2-27. Service Position........................................................... 2-12
2-28. Circuit Boards Location ............................................... 2-14
2-29. Flexible Boards Location............................................. 2-16
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram................................................. 3-1
3-2. Camera Signal Process Block Diagram...................... 3-3
3-3. Camera Control Block Diagram .................................. 3-5
3-4. A/V Data Control, Video Out Block Diagram .............. 3-7
3-5. MPEG Encode Block Diagram .................................... 3-9
3-6. MD Signal Process Block Diagram ............................. 3-11
3-7. MD Servo Block Diagram ............................................ 3-13
3-8. System Control Block Diagram ................................... 3-15
3-9. Audio Block Diagram ................................................... 3-17
3-10. LCD Block Diagram..................................................... 3-19
3-11. EVF Block Diagram ..................................................... 3-21
3-12. Mode Control Block Diagram ...................................... 3-23
3-13. Ether Interface Block Diagram .................................... 3-25
3-14. Power 1 Block Diagram ............................................... 3-27
3-15. Power 2 Block Diagram ............................................... 3-29
3-16. Power 3 Block Diagram ............................................... 3-31
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. Frame Schematic Diagram.......................................... 4-5
4-2. Printed Wiring Boards and Schematic Diagrams ....... 4-9
VC-216 Printed Wiring Board...................................... 4-9
VC-216 (LENS MOTOR DRIVE, CCD IMAGER)
Schematic Diagram ..................................................... 4-13
VC-216 (CAMERA SIGNAL PROCESS)
Schematic Diagram ..................................................... 4-17
MAIN Printed Wiring Board ......................................... 4-21
MAIN (AUDIO/VIDEO DATA CONTROL)
Schematic Diagram ..................................................... 4-29
MAIN (MPEG ENCODER/DECODER)
Schematic Diagram ..................................................... 4-33
MAIN (RF AMP/DRIVE) Schematic Diagram ............. 4-39
MAIN (DIGITAL SIGNAL PROCESSOR)
Schematic Diagram ..................................................... 4-43
MAIN (SYSTEM CONTROL) Schematic Diagram ..... 4-48
MAIN (VIDEO) Schematic Diagram ............................ 4-53
MAIN (AUDIO) Schematic Diagram ............................ 4-56
MAIN (SWITCHING REGULATOR)
Schematic Diagram ..................................................... 4-59
MAIN CONTROL SWITCH UNIT, ZOOM SWITCH
UNIT Schematic Diagram ........................................... 4-62
UPPER CONTROL SW SUB ASSY,
REMOCON RAY-CATCHER BLOCK UNIT,
LCD DETECTION SW FLEXIBLE Board
Schematic Diagram ..................................................... 4-65
CLV Printed Wiring Board ........................................... 4-68
CLV Schematic Diagram ............................................. 4-75
REC Printed Wiring Board and
Schematic Diagram ..................................................... 4-79
VF Printed Wiring Board ............................................. 4-83
VF Schematic Diagram ............................................... 4-87
BL Printed Wiring Board ............................................. 4-93
BL Schematic Diagram ............................................... 4-97
LCD Printed Wiring Board........................................... 4-101
LCD Schematic Diagram............................................. 4-106
ETHER Printed Wiring Board...................................... 4-109
ETHER Schematic Diagram........................................ 4-116
JACK Schematic Diagram........................................... 4-119
JACK Printed Wiring Board......................................... 4-121
POWER Printed Wiring Board .................................... 4-125
POWER Schematic Diagram ...................................... 4-130
4-3. Waveforms................................................................... 4-133
5. EXPLODED VIEWS
5-1. Main Section................................................................ 5-1
5-2. Cabinet (R) Section ..................................................... 5-2
5-3. Microphone Block Section .......................................... 5-3
5-4. Cabinet (L) Section ..................................................... 5-4
5-5. LCD Block Section ...................................................... 5-5
5-6. EVF Block Section....................................................... 5-6
5-7. Lens Block Section (CT-DCMM1-164) ........................ 5-7
5-8. Mechanism Deck Section-1
(MT-DCMM1-163)........................................................ 5-8
5-9. Mechanism Deck Section-2
(MT-DCMM1-163)........................................................ 5-9
6. ELECTRICAL PARTS LIST ............................. 6-1
TABLE OF CONTENTS
Section Title Page Section Title Page
*The color reproduction frame is shown after the page
of ELECTRICAL PARTS LIST.

– 4 –
SERVICE NOTE
•NOTE FOR REPAIR
Make sure that the flat cable and flexible board are not cracked of
bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
When remove a connector, don’t pull at wire of connector.
Be in danger of the snapping of a wire.
Cut and remove the part of gilt
which comes off at the point.
(Take care that there are some
pieces of gilt left inside)
When installing a connector, don’t press down at wire of connector.
Be in danger of the snapping of a wire.
• When repairing this device with the power on, if you remove
the MAIN board or open the upper panel assy, this device stops
working.
In this case, you can work without the device stopping by fas-
tening the hook of the open/close detect switch (S8003) on the
MAIN Board with tape.
S8003

1-1
SECTION 1
GENERAL This section is extracted from in-
struction manual.(3-866-152-11)
DCM-M1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

1-9

1-10

1-11

1-12

1-13

1-14

1-15

1-16