Sony Mavica MVC-FD81 User manual

MVC-FD81
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Hong Kong Model
Tourist Model
Chinese Model
SERVICE MANUAL
DIGITAL STILL CAMERA
MICROFILM
SPECIFICATIONS
Ver 1.0 1998.09

— 2 —
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE WITH
MARK !ON 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
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE !SUR LES
DIAGRAMMESSCHÉMATIQUES ETLALISTEDESPIÈCESSONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
1. Check thearea ofyour repairfor unsoldered or poorly-soldered
connections. Checkthe entireboard surfacefor soldersplashes
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
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4. Look for parts which, through functioning, showobvious signs
of deterioration. Point them out to the customer and
recommend 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 soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.

— 3 —
TABLE OF CONTENTS
SERVICE NOTE ····································································· 5
1. GENERAL
Before using your camera..........................................................1-1
Parts identification .....................................................................1-1
Basic operations
Preparation .............................................................................1-2
1: Charging the battery pack..................................................1-2
2: Installing the battery pack..................................................1-2
3: Setting the date and time ...................................................1-2
Recording and playing back images ......................................1-3
1: Recording still images .......................................................1-3
2: Recording moving images .................................................1-3
3: Playing back still images ...................................................1-4
4: Playing back moving images .............................................1-4
Battery life/No. of images that can be recorded/
played back ............................................................................1-5
Viewing images using a personal computer ..........................1-5
Advanced operations
Changing the mode settings...................................................1-5
Using various functions for recording ...................................1-8
Focusing manually.................................................................1-8
Enjoying Picture Effect..........................................................1-8
Using the PROGRAM AE function .......................................1-8
Additional information
Charging the lithium battery in the camera ...........................1-8
Precautions.............................................................................1-9
Troubleshooting .....................................................................1-9
Self-diagnosis display ..........................................................1-10
Warning messages ...............................................................1-10
2. DISASSEMBLY
2-1. Cabinet (Front) Assembly, Cabinet (Rear) Assembly .....2-1
2-2. FC-67 Board, DD-119 Board, Floppy Disk Drive ..........2-2
2-3. PK-44 Board, LCD Panel ................................................2-2
2-4. RL-51 Board, FLASH Unit .............................................2-3
2-5. CD-206 Board, Lens Device ...........................................2-3
2-6. Service Position (Routing and location of harnesses) .....2-4
2-7. Service Position (For voltage measurement)...................2-5
2-8. Circuit Boards Location ..................................................2-6
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram ...................................................3-1
3-2. Camera/FDD Interface Block Diagram...........................3-5
3-3. Mode Control Block Diagram .........................................3-9
3-4. LCD Block Diagram .....................................................3-11
3-5. Power Block Diagram ...................................................3-13
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. Frame Schematic Diagram ..............................................4-1
4-2. Printed Wiring Boards and Schematic Diagrams ............4-5
• CD-206 (CCD Imager)
Printed Wiring Board ......................................4-6
• CD-206 (CCD Imager)
Schematic Diagram .........................................4-7
• FC-67 (CameraY/C Process, DRAM Control,
Lens Motor Drive, D/A Converter,Audio A/D.D/A
Converter, FD/System Control, HI Control)
Printed Wiring Board ......................................4-9
• FC-67 (CameraY/C Process)(1/7)
Schematic Diagram .......................................4-14
• FC-67 (DRAM Control)(2/7)
Schematic Diagram .......................................4-17
• FC-67 (Lens Motor Drive)(3/7)
Schematic Diagram .......................................4-23
• FC-67 (D/A Converter)(4/7)
Schematic Diagram .......................................4-25
• FC-67 (Audio D/A.A/D Converter)(5/7)
Schematic Diagram .......................................4-29
• FC-67 (FD/System Control)(6/7)
Schematic Diagram .......................................4-31
• FC-67 (HI Control)(7/7)
Schematic Diagram .......................................4-36
• PK-44 (REC/PB AMP)(1/5)
Schematic Diagram .......................................4-39
• PK-44 (LCD Drive)(2/5)
Schematic Diagram .......................................4-43
• PK-44 (Timing Generator)(3/5)
Schematic Diagram .......................................4-45
• PK-44 (Back-Light, Mode Switch)(4/5)(5/5)
Schematic Diagram .......................................4-48
• PK-44 (REC/PB AMP, LCD Drive, Timing Generator,
Back-Light, Mode Switch)
Printed Wiring Board ....................................4-51
• DD-119 (DC/DC Converter)
Schematic Diagram .......................................4-55
• DD-119 (DC/DC Converter)
Printed Wiring Board ....................................4-59
• RL-51 (MIC AMP)
Printed Wiring Board and
Schematic Diagram .......................................4-62
5. ADJUSTMENTS
5-1. Camera Section Adjustment ............................................5-1
1-1. Preparations before Adjustment (Camera Section) .........5-1
1-1-1.List of Service Tools........................................................5-1
1-1-2.Preparations .....................................................................5-2
1-1-3.Discharging of the flashlight power supply.....................5-2
1-1-4.Precaution ........................................................................5-4
1. Setting the Switch............................................................5-4
2. Order of Adjustments ......................................................5-4
3. Subjects ...........................................................................5-4
1-2. Initialization of F, E Page Data........................................5-5
1. Initializing the F, E Page Data .........................................5-5
2. Modification of F, E Page Data .......................................5-5
3. F Page Table ....................................................................5-5
4. E Page Table ....................................................................5-7
1-3. Camera System Adjustments .........................................5-10
1. Picture Frame Setting ....................................................5-10
2. HALL Adjustment .........................................................5-11
3. Flange Back Adjustment ...............................................5-11
4. Flange Back Check........................................................5-12
5. Light Level Adjustment .................................................5-12
6. Auto White Balance Standard Data Input .....................5-13
7. Auto White Balance Adjustment ...................................5-13
8. Color Reproduction Adjustment....................................5-14
9. White Balance Check ....................................................5-15
10. Strobe Light Level Adjustment .....................................5-15
11. Strobe White Balance Adjustment.................................5-16
12. Strobe Light Level and White Balance Check ..............5-16
13. CCD Defect Compensation ...........................................5-17
14. CCD Defect Compensation Check................................5-17
1-4. LCD System Adjustment ...............................................5-18
1. LCD Initial Data Input ..................................................5-18
2. VCOAdjustment (PK-44 board) ...................................5-19
3. D range Adjustment (PK-44 board)...............................5-19
4. Bright Adjustment (PK-44 board) .................................5-20
5. Contrast Adjustment (PK-44 board) ..............................5-20
6. Color Adjustment (PK-44 board) ..................................5-21
7. V-COM Level Adjustment (PK-44 board) ....................5-21
8. V-COMAdjustment (PK-44 board) ..............................5-22
9. White BalanceAdjustment (PK-44 board)....................5-22

— 4 —
1-5. System Control System Adjustment..............................5-23
1. Battery End Adjustment (FC-67 board) ........................5-23
2. Alignment Check (FDD Unit) .......................................5-24
5-2. Service Mode.................................................................5-25
2-1. Adjustment Remote Commander ..................................5-25
1. Using theAdjustment Remote Commander ..................5-25
2. Precautions upon using the adjustment remote
commander ....................................................................5-25
2-2. Data Process ..................................................................5-26
2-3. Service Mode.................................................................5-27
1. Setting the Test Mode ....................................................5-27
2. Bit value discrimination ................................................5-27
3. Switch Check (1) ...........................................................5-27
4. Switch Check (2) ...........................................................5-28
5. Self Diagnosis Log Check.............................................5-28
6. REPAIR PARTS LIST
6-1. Exploded Views ...............................................................6-1
6-1-1.Cabinet (Front) Section ...................................................6-1
6-1-2.Cabinet (Rear) Section ....................................................6-2
6-1-3.Lens Block Section..........................................................6-3
6-2. Electrical Parts List .........................................................6-4
*The color reproduction frame is shown on page 149.

— 5 —
SERVICE NOTE
[Discharging of the FLASH unit’s charging capacitor]
The charging capacitor of the FLASH unit is charged up to the
maximum 300 V potential.
There is a danger of electric shock by this high voltage when the
battery is handled by hand. The electric shock is caused by the
charged voltage which is kept without discharging when the main
power of the MVC-FD81 is simply turned off. Therefore, the
remaining voltage must be discharged as described below.
Preparing the Short Jig
To preparing the short jig. a small clip is attached to each end of a
resistor of 1kΩ/1W (1-215-869-11)
Wrap insulating tape fully around the leads of the resistor to prevent
electrical shock.
Discharging the Capacitor
Short circuits between the positive and the negative terminals of
charged capacitor with the short jig about 10 seconds.
1kΩ/1W
Wrap insulating tape.
FLASH
UNIT
BATTERY
HOLDER
Capacitor
Sort jig

— 6 —
[How to connect the extension cable]
1. Connection between the FDD unit and PK-44 board.
1) Connection of the extension cable (J-6082-427-A)
2) Connection between the PK-44 board and extension cable
3) Connection between the FDD unit and extension cable
Note : The floppy disk drive and PK-44 board could be destroyed unless
the flexible board is connected normally to the connector.
(See Fig. 4.)
2. Connection between the DD-119 board and FC-67
board
CN013
Conductor side
Conductor side
Extension cable
(J-6082-427-A)
CN601
CN602 Extension cable
(J-6082-427-A)
Conductor side
Conductor side
For both two cables,
the conductor points
are on this side.
Conductor side
FDD unit
CN011
Extension cabl
e
(J-6082-427-A)
CN012
Good NG
FC-67
board
DD-119
board
CN603
Extension cable (50P)
(J-6082-434-A)
CN302
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5

— 7 —
Note : The “Self-diagnosis” data is backed up by the coin lithium
battery.The data will be lost and initialized when the coin lithium
battery is removed.
Display Code
C:32:01
C:13:01
E:91:01
E:61:00
E61:10
Countermeasure
Change the disk and turn off the main
power then back on.
Replace the floppy disk.
Format the floppy disk with the MVC-
FD81.
Checking of flash unit or replacement of
flash unit
Checking of lens drive circuit
Cause
Defective floppy disk.
• The type of floppy disk that cannot be
used by this machine, is inserted.
(Such as 2DD)
• Data is damaged.
• Unformatted disk is inserted.
Abnormality when flash is being
charged.
When failed in the focus initialization.
Caution Display During Error
DRIVE ERROR
DISK ERROR
Flash LED
Flash display
Flashing at 3.2 Hz
—
Self-diagnosis display
• C: ππ: ππ
Thecontents whichcan be handled
by customer, are displayed.
• E: ππ: ππ
Thecontents whichcan be handled
by engineer, are displayed.
[Description on Self-diagnosis Display]

1-1
MVC-FD81
SECTION 1
GENERAL This section is extracted from
instruction manual.

1-2

1-3

1-4

1-5

1-6

1-7

1-8

1-9

1-10E

2-1
MVC-FD81
SECTION 2
DISASSEMBLY
NOTE: Follow the disassembly procedure in the numerical order given.
NOTE: The following flow chart shows the disassembly procedure.
2-1. CABINET (FRONT) ASSEMBLY, CABINET (REAR) ASSEMBLY
MVC-FD81 MAVICA
2-1. 1 - !¡ Cabinet (front) block assembly
DD-119 board
2-2.
1 - 3
Cabinet (rear) block assembly
2-1.
!∞ - !ª
LCD, Backlight
2-3.
1 - 3
LCD
2-3.
4 , 5
FC-67 board
2-2.
4 , 5
Floppy disk drive
2-2.
6 - !¡
MF block (50080)
2-4.
1 - 3
PK-44 board
2-3.
6 - 8
Speaker
2-3.
!º - !™
RL-51 board
2-4.
4 - !º
FLASH unit
2-4.
!¡ - !§
Lens block assembly
2-1.
!™ - !¢
CD-206 board
2-5.
1 , 2
Lens device
2-5.
3 - 5
PK-44
Board
DD-119
FC-67
a
a
!º Connector
(From CN301 4P, DD-119 board)
!™ Flexible board
(From CN401 20P, FC-67 board)
!£ FP-66 flexible board
(From CN101 16P, FC-67 board)
!¡ Cabinet (front) block assembly
1 - !¡ Cabinet (front) block assembly
!™ - !¢ Lens block assembly
!∞ - !ª Cabinet (rear) block assembly
!§ Connector
(From CN602 70P, FC-67 board)
9 Connector
(From CN704 13P, FC-67 board)
8 Connector
(From CN702 7P, FC-67 board)
!¶ Flexible board
(From CN601 18P, PK-44 board)
2 Two screws,
lock ace (M2
× 4)
1 Screw,
lock ace (M2
× 4)
3 Screw, lock ace (M2 × 4)
7 Claws
6 Screw, lock ace (M2 × 4)
5 Screw, lock ace (M2 × 4)
4 Two screws, lock ace (M2 × 4)
!• Two flexible boards
From CN602 5P
× 2,
PK-44 board
!∞ Tapping screw
(B2
× 5)
!¢ Lens block assembly
!ª Cabinet (rear)
block assembly

2-2
2-2. FC-67 BOARD, DD-119 BOARD, FLOPPY DISK DRIVE
2-3. PK-44 BOARD, LCD PANEL
DD-119
FC-67
Board
4 Three screws (M2 × 3)
6 Screw (M2 × 3)
7 Three screws step (M2)
8 Main frame assembly
!£ Side lid
!™ Side spring (upper)
!¡ Floppy disk drive
!º Ground plate (H)
5 FC-67 board
9 Screw (M2 × 3)
1 Screw (M2 × 3)
3 DD-119 board
1 - 3 DD-119 board
4 - 5 FC-67 board
6 - !¡ Floppy disk drive
!™ , !£ Side lid
2 Connector (B to B)
From CN603 50P (FC-67 board)
to CN302 50P (DD-119 board)
PK-44
5 LCD Panel
(Release the claw
a )
9 FP-65 flexible board
(From CN603 70P, PK-44 board)
!£ Cabinet (rear)
assembly
4 Flexible board
(From CN901 24P, PK-44 board)
8 PK-44 board
3 Cold cathode
fluorescent tube
1 - 3 Cold cathode fluorescent tube
4 , 5 LCD
6 - 8 PK-44 board
9 FP-65 flexible board
!º - !™ Speaker
!£ Cabinet (rear) assembly
2 Four screws, tapping
(B2
× 5)
7 Seven screws,
tapping (B2
× 5)
!º Screw, tapping (B2 × 5)
!¡ Speaker retainer
!™ Speaker
SP insulating plate
(Note)
6 SP-151 harness
(From CN701 2P, PK-44 board)
1 Flexible board
(From CN851 20P, PK-44 board)
a
Note: When replacing the speaker,
peel off the SP insulating plate
and attach it on the new speaker.
When re-assembling
engage the switch pin
with knob groove as
shown. When re-assembling
engage the switch pin
with knob groove as shown.

2-3
2-4. RL-51 BOARD, FLASH UNIT
2-5. CD-206 BOARD, LENS DEVICE
3 MF block (50080)
2 Three screws, tapping
(B2
× 5)
!£ Screw, tapping
(B2
× 5)
1 MF block (50080)
Flexible board
(From CN2 6P, FLASH unit)
1 - 3 MF block (50080)
4 - !º RL-51 board
!¡ RL holder
!™ - !§ FLASH unit
8 Connector
From CN001 2P,
RL-51 board
7 Connector
From CN002 7P,
RL-51 board
4 Three screws, tapping
(B2
× 5)
!¡ RL holder
5 Charging capacitor
of FLASH unit
Short jig (see page 5)
1k
Ω . 1W
parts.No.1-215-869-11
When handling the
FLASH unit, be sure
to discharge the
charging capacitor
before handling it.
For discharge short jig
to the positive (+) and
negetive (-) terminals
of the charging capacitor
for about ten seconds.
6 Ground plate (A)
!§ FLASH unit
!™ Connector
(From CN1 13P, FLASH unit)
!∞ Fuse replacement
caution label
!¢ Release
the claw
9 Release
the claws
!º RL-51
board
6 Lens devic
e
5 Lens frame
CD sheet (Not supplied)
3 CD-206 board
2 Two screws, tapping
(B2 × 7.5)
4 Two screws, tapping
(B2
× 5)
Prism cushion
(Not supplied)
1 FP-66 flexible board
From CN431 16P,
CD-206 board
Be sure to read “Note on the CCD imager replacement” on
page 4-7 when changing the CCD Imager.