Sony Mavica MVC-FD71 User manual

MICROFILM
SERVICE MANUAL
DIGITAL STILL CAMERA
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Hong Kong Model
Tourist Model
SPECIFICATIONS
MVC-FD71
Ver 1.3 2000. 09
With SUPPLEMENT-1
(9-974-076-81)

– 2 –
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINEWITH
MARK !ONTHE SCHEMATIC DIAGRAMS AND INTHE 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 IDENTIFÉS PAR UNE MARQUE !SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT 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 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, par-ticularly tran-
sistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4. Look for parts which, through functioning, show obvious
signs of deterioration. Point them out to the customer and
recommend their replace-ment.
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 dur-
ing 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 solder-
ing or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
•Floppy disk that can be used by the MVC-FD71
•Size : 3.5-inch
•Type : 2 HD
•Capacity : 1.44 MB
•Format : MS-DOS format
(512 bytes ×18 sector)
(FD can be formatted by the MVC-FD71)

– 3 –
TABLE OF CONTENTS
SERVICE NOTE
Discharging of the FLASH units charging capacitor............... 4
LCD type judging method........................................................ 4
How to connect the extension cable ....................................... 5
Description on self diagnosis display...................................... 6
Power supplying method ......................................................... 6
1. GENERAL
Be sure to read before using your camera ............................. 1-1
Before using your camera ....................................................... 1-1
Parts identification ................................................................... 1-1
Preparation .............................................................................. 1-2
Recording and playing back images ....................................... 1-3
Changing the mode settings ................................................... 1-5
Using various function for recording ....................................... 1-7
Changing the lithium battery in the camera ............................ 1-7
Precautions.............................................................................. 1-8
Trouble shooting ...................................................................... 1-8
Self diagnosis display.............................................................. 1-9
2. DISASSEMBLY
2-1. CABINET (FRONT) BLOCK ASSEMBLY ..................... 2-1
2-2. FC-66 BOARD............................................................... 2-1
2-3. LENS BLOCK ASSEMBLY............................................ 2-1
2-4. MOTOR UNITS.............................................................. 2-1
2-5. FDD BLOCK ASSEMBLY .............................................. 2-2
2-6. PK-43 BOARD, LIQUID CRYSTAL
INDICATOR MODULE................................................... 2-2
2-7. CIRCUIT BOARDS LOCATION .................................... 2-2
3. BLOCK DIAGRAMS
3-1. OVER ALL BLOCK DIAGRAM...................................... 3-1
3-2. CAMERA BLOCK DIAGRAM ........................................ 3-5
3-3. FDD INTERFACE BLOCK DIAGRAM........................... 3-7
3-4. MODE CONTROL BLOCK DIAGRAM.......................... 3-11
3-5. LCD BLOCK DIAGRAM ................................................ 3-13
3-6. POWER BLOCK DIAGRAM.......................................... 3-16
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. FRAME SCHEMATIC DIAGRAM .................................. 4-1
4-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS ............................................. 4-4
•CD-196 (CCD IMAGER)
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ........................................... 4-5
•RL-50 (RELEASE SWITCH)/FC-66 (MAIN)
PRINTED WIRING BOARDS ................................... 4-7
•FC-66 (CAMERA)
SCHEMATIC DIAGRAM ........................................... 4-13
•FC-66 (DRAM CONTROL)
SCHEMATIC DIAGRAM ........................................... 4-15
•FC-66 (D/A CONVERTER)
SCHEMATIC DIAGRAM ........................................... 4-18
•FC-66 (CAMERA SERVO)
SCHEMATIC DIAGRAM ........................................... 4-21
•FC-66 (FDD CONTROL)
SCHEMATIC DIAGRAM ........................................... 4-26
•FC-66 (MODE CONTROL), (EVR DECODER)
SCHEMATIC DIAGRAM ........................................... 4-29
•FC-66 (DC/DC CONVERTER)
RL-50 (RELEASE SWITCH)
SCHEMATIC DIAGRAM ........................................... 4-34
•PK-43 (LCD PANEL, MODE KEY)
PRINTED WIRING BOARD ..................................... 4-37
•PK-43 (FDD INTERFACE)
SCHEMATIC DIAGRAM ........................................... 4-42
•PK-43 (RGB CECODER)
SCHEMATIC DIAGRAM ........................................... 4-45
•PK-43 (LCD TIMING GENERATOR)
SCHEMATIC DIAGRAM ........................................... 4-49
•PK-43 (MODE KEY SWITCH)
SCHEMATIC DIAGRAM........................................... 4-51
•PK-43 (BACK LIGHT)
SCHEMATIC DIAGRAM........................................... 4-53
5. ADJUSTMENTS
5-1. CAMERA SECTION ADJUSTMENT ............................ 5-1
1-1. PREPARATIONS BEFOREADJUSTMENT ................. 5-1
1-1-1. List of service tools .................................................. 5-1
1-1-2. Precautions .............................................................. 5-2
1. Switch settings ......................................................... 5-2
2. Adjustment sequence............................................... 5-2
3. Subject...................................................................... 5-2
1-1-3. Preparations ............................................................. 5-3
1-1-4. Discharge of flashlight power supply ....................... 5-4
1-1-5. Adjustment remote commander............................... 5-4
1. Using the adjustment remote commander .............. 5-4
2. Precautions when using the adjustment
remote commander .................................................. 5-5
1-1-6. Data processing ....................................................... 5-6
1-2. INITIALIZATION OF EAND F PAGE DATA ............. 5-7
1. Intialization of E and F page data ............................ 5-7
2. Modification of F, E page data ................................. 5-7
3. F page table ............................................................. 5-7
4. E page table ............................................................. 5-10
1-3. CAMERA SYSTEM ADJUSTMENT......................... 5-12
1. Adjustment points when major parts
have been replaced.................................................. 5-12
2. Power supply voltage check..................................... 5-12
3. HALL adjustment...................................................... 5-12
4. Flange back adjustment ........................................... 5-13
5. Flange back check ................................................... 5-14
6. Picture frame setting ................................................ 5-14
7. Light level adjustment .............................................. 5-15
8. Auto white balance reference data input ................. 5-15
9. Auto white balance adjustment ................................ 5-16
10. White balance check ................................................ 5-16
11. Hue gain adjustment ................................................ 5-17
1-4. LCD SYSTEM ADJUSTMENT ...................................... 5-18
1. Power supply voltage check..................................... 5-19
2. EVR initial data input................................................ 5-19
3. VCO adjustment ....................................................... 5-19
4. D RANGE adjustment .............................................. 5-20
5. BRIGHT adjustment ................................................. 5-20
6. CONTRAST adjustment........................................... 5-21
7. V-COM level adjustment .......................................... 5-21
8. V-COM adjustment ................................................... 5-22
9. White balance adjustment ...................................... 5-22
1-5. SYSTEM CONTROL SYSTEM ADJUSTMENT ........... 5-23
1. Battery down adjustment ......................................... 5-23
2. Battery down check.................................................. 5-23
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 ASSY SECTION............................... 6-3
6-2. ELECTRICAL PARTS LIST ........................................... 6-4
*The color reproduction frame is shown after the
page of ELECTRICAL PARTS LIST.

– 4 –
[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-FD71 is simply turned off. Therefore, the re-
maining 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 pre-
vent electrical shock.
1kΩ/1W
Wrap insulating tape.
Discharging the Capacitor
Short-circuit between the positive and the negative terminals of
charged capacitor with the short jig about 10 seconds.
SERVICE NOTE
[LCD type judging method]
The LCD type can be judged by measuring resistance between 4
pin and !¢ pin of CPC-9 jig.
Resistance LCDType
10 kΩSHARP
0 ΩCASIO
Flash unit
Charge
capacitor
Short jig
+–
Digital voltmeter
!¢ pin
4 pin
CPC-9 jig
(J-6082-393-B)

– 5 –
Extension cabl
e
(J-6082-427-A)
Four screws
Flexible board
(CN012)
Flexible board
(CN011)
Floppy disk drive
Extension cable
(J-6082-427-A)
Contact side
CN013
Contact side
Lithium lid
Extension cable
(J-6082-427-A)
CN602
Contact side
CN601
Contact side PK-43 board
Extension cable
(J-6082-427-A)
For both two cables,
the contact points are
on this side.
Good NG
[How to connect the extension cable]
1) Remove the PK-43 board and the liquid crystal indication
module. (See page 2-2E.)
Note : Be careful not to breake the flexible board of the floppy disk drive.
2) Install the Extension cable (J-6082-427-A) on the rear cabi-
net. (See Fig. 1.)
3) Install the floppy disk drive. (See Fig. 2.)
4) Open the lithium lid. (See Fig. 3.)
5) Mount the flexible board on CN013. (See Fig. 3.)
6) Install the PK-43 board. (See Fig. 4.)
Note : The floppy disk drive and PK-43 board could be destroyed unless
the flexible board is connected normally to the connector.
(See Fig. 5.)
Fig. 3
Fig. 2
Fig. 4
Fig. 5
Fig. 1

– 6 –
[Description on Self-diagnosis Display]
Note : The “Self-diagnosis” data is backed up by the coin lithiumbattery.
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-
FD71.
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
—
[Power supplying Method]
Use the AC power adaptor (BC-V615) when supplying the power to this set.

1-1
SECTION 1
GENERAL This section is extracted from
instruction manual.
MVC-FD71

1-2

1-3

1-4

1-5

1-6

1-7

1-8

1-91-9E

2-1
2-2. FC-66 BOARD
2-1. CABINET (FRONT) BLOCK ASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
SECTION 2
DISASSEMBLY
2-3. LENS BLOCK ASSEMBLY 2-4. MOTOR UNITS
Note: Flexible board of zoom lens is not supplied.
Please be careful not to break the flexible board
when you change the motor unit.
1 Two screws
(M2)
1 Two screws
(M2)
1 Two screws
(M2)
1 screw
(M2)
2 Cabinet (front)
block assembly
3 Connector
(CN901)
3 Connector
(CN907)
3 Connector
(CN910)
2 Three screws
(M2
× 3)
1 FP-34 frexible board
(CN101)
1 FP-35 frexible board
(CN601)
1 Frexible board
(CN401)
3 FC-66 board
3 Lens block assembly
2 Boss
1 FP-34 flexible board
(CN101)
1 Flexible board
(CN401)
2 Screw
3 Screw
5 Two screws
4 Zoom motor unit
6 Focus motor unit
1 Break solders o
f
mortor units.
3 Flexible board

2-2E
FC-66
CAMERA, DRAM CONTROL, D/A CONVERTER, CAMERA SERVO,
FDD CONTROL, MODE/SYSTEM CONTROL, EVR DECODER,
DC/DC CONVERTER
( )
CD-196
(CCD IMAGER)
PK-43
FDD INTERFACE, RGB DECODER,
LCD TIMING GENERATOR,
MODE KEY SWITCH, BACK LIGHT
(
)
FLASH UNIT
RL-50
(RELEASE SWITCH)
2-5. FDD BLOCK ASSENMBLY
2-7. CIRCUIT BOARDS LOCATION
2-6.PK-43 BOARD, LIQUID CRYSTAL INDICATOR MODULE
Note: When installing PK-43 board, connect RV701 with
zoom knob, S708 with PLAY/CAMERA knob and
S710 with BRIGHT knob.
2 FDD block assembly
3 Flexible board
(CN602)
1 Open the side
Cabinet.
3 Flexible board
(CN601)
2 Two screws
5 Two screws
5 Four screws
2 Two screws
5 screw
1 Flexible board
(CN851)
4 Flexible board
(CN901)
3 Cold cathode
fluorescent tube
6 PK-43 board
7 Liquid crystal indicator module
RV701
Zoom knob
S710
S708
PLAY/CAMERA knob
BRIGHT kno
b

MVC-FD71
3-1 3-2 3-3
3-1. OVERALL BLOCK DIAGRAM
SECTION 3
BLOCK DIAGRAMS
FOCUS
SENSOR
ZOOM
LENS
M902
ZOOM MOTOR
M901
FOCUS MOTOR
A1,A2
B1,B2 DIR0A,0B
BIAS
HALL AD
V1,V3,V2A,V2B,
H1,H2,RG
PBLK
MCK
IRIS CONT1,2
CAM SO,XCAMSCK,XRSTSYS
XCAMSCK,CAMSO,CAMSI
XCSIDIC,XCAMSCK,CAMSO,CAMSI
CAC_VD
HALL OFFSET,GAIN
FR,HR
XCLPOB
G CAM STBY
AGC
CONT1,2
SHP,SHD,
CLPDM,CLD
DIR1A,1B
A3,A4,B3,B4
ZM RESET SENS
FC RESET SENS
FC RESET SENS
ZM RESET SENS
XRST PDR
XRLS ON1,2
HALL AD
TG_CS
XCS_CAM_D/A
G CAM STBY
XRST CORE
DR_BUS_RQ
XHISCK,HISO,HISI
LENS TEMP AD
D706
IRIS
MOTOR
IC403
IC401
IC404
IC402
IC301
IC103
FC-66 BOARD
(SEE PAGE 4-13~4-36)
CD-196 BOARD
(SEE PAGE4-6)
IC401
IC102
IC104 IC503
IC801
IC601 IC802
IC901
IC804
IC701
SO51
RL-50 BOARD
(SEE PAGE4-34)
AD1-10
CAY0-7
CAC0-7
MCK
CA_VD,CA_HD,CAC_VD
PANEL Y0-7
SYSH,SYSV
PANEL C0-7
CCD
HALL
SENSOR
M M
ZOOM
SENSOR
FOCUS MOTOR
DRIVE
ZOOM MOTOR
DRIVE
IRIS
DRIVER
HALL
AMP
TG
S/H AGC
A/D
CCD
IMAGER
RESET
BACK UP
FOCUS CONTROL
DECODER
Y/C
PROCESSOR
EVR DATA
DECODER
TEMP
SENSOR
SELF
TIMER
INITIAL RESET
BACK UP VCC
SHUTTER
BUS
BUFFER D0-7D0-7D0-15
D0-D15
D0-15
D0-15
A0-9
A0-9
A0-9
X_BUS_RQ
DR_BUS_RQ
CR,RESET
HI SI,HI SO,XHI SCK
XCS MC,XMC CANCEL,XMC NMI
XCS OSD
XCS LCD-D/A
DISK IN
XWE,XOE
XCASH,XCASL,XRAS,XOE,XWE
PYRA R/G/B/BLK
XHI SCK,HISO
DATA BUS
A10-17
RES,CE
CONTROL SIGNAL
ADDRESS BUS
XHISCK,HISO,XCSIDIC2
XCSIDIC,XRSTSYS
A0-3
XWE,XOE
PANEL R
PK-43 BOARD
(SEE PAGE 4-42~4-54)
PANEL G
PANEL B
CN802
CPC
XHI SCK,HISO
XCS LCD D/A
WRITE DATA
READ DATA
TKACK00,INDEX
DISK CHANGE,X2DD
FD READY,MOTOR ON,DRIVE SELECT
WRITE GATE
DISK IN
KEY AD0~2
SIDE1 SELECT,STEP,DIRECTION,WRITE PROTECT
PANEL XHD
PANEL XVD(SYS V)
IC703
IC501
IC705
IC807
RAM
DRC
D/A
COMVERTER
FDD
CONTROL
RAM OSD
SYSTEM,CONTROL
IC806
EEPROM
IC702
HI PROCESSOR
IC903
IC801
IC251
IC252
IC601
IC802
IC803
IC805
S703
S206
FLASH
S705
XPWR SW
XCAM/PB SW
ZOOM AD
XACS LED
XCHG LED
BEEP
LI 3V
S709
S704
POWER
S702
PLAY/
CAMERA
S708
ZOOM
RV701
ACCESS
D701
FLASH
CHARGE
D702
LITHIUM
BATTERY
BH701
BZ701
(BEEP)
S707
S706 S710
RGB
DECODER
VR
LCD901
COLOR
LCD
MONITOR
VG
VB
T851
BL UNREG
PANEL
4.9V
LCD
TIMING
GENERATOR
SW
DC/DC
CONVERTER
EVR
DECODER
SHOCK SENS,
DATA LATCH
FDD
INTERFACE
CONTROL
SW
PICTURE
EFFECT
SUB BRIGHT
( + )
LCD
BACK LIGHT
SUB BRIGHT
( - )
DISPLAY
ND801
FDD
DRIVE
UNIT
BACK LIGHT
CAM SI,CAM SO,XCAM SOK,XCS DIC
PROGRAM
AE
05

MVC-FD71
3-5 3-6
3-2. CAMERA BLOCK DIAGRAM
AD0
AD9
XCLPOB
CAMY0
CAMYZ
CAMC0
CAMC7
MFRO
MHRO
CFRO
XCE
XCLK
FRO
HRO
MCK
WWE
SCK
SI
SO
DIN
CLPOB
XSHP
AGCCONT2 AGCCONTZ1
XSHD
CLPDM
ADCLK
PBLK
STBY
D0
D9
CD-196 BOARD
(SEE PAGE 4-6) FC-66 BOARD
(SEE PAGE 4-13,21,32)
IC401
CCD IMAGER Q401 CN401 CN101
Q101-104
CAM 15V
TG
EVR DATA DECODER
S/H,AGC,A/D Y/C PROCESSOR
CAM-5.5V
X101
36MHZ
FLASH ADJ
TO
POWER BLOCK
(SEE PAGE 3-16) F CHG
BUFFER
CCD OUT
CAM 15V
V1
H1
H2
RG
V3
V2A
V2B
CCD OUT
IC103
IC102 IC104
CAM 15V
V1
H1
H2
RG
V3
V2A
V2B
4
3
2
1
5
8
7
13
14
12
2
9
12
7
6
5
4
15
16
14
5
10
11
12
13
2
1
3
15
8
SWITCH
V1 SHP
SHD
CLPDM
CLD
PBLK
FRI
HRI
MCK
WEN
SSK
SSI
RST
SEN
H1
H2
RG
OSCO
OSCI
V3
V2A
V2B
42
44
41
40
35
21
15
18
17
12
13
9
34
33
38
47
48
28
27
25
29
3
19
16
23
22
21
20
26
29 30 18
2
11
10
84
14
13
12
11
85
82
81
65
58
57
(1/4)
IRIS CONT
12
13
10
IC301
IC404
(2/2)
HALL AMP
6
5
7
IC401
(4/4)
HALL GAIN CONT
3
2
1
IC404
(1/2)
HALL AMP
Q402
CN401
LENS UNIT
IRIS
MOTOR DRIVE( + )
BIAS( + )
DRIVE( - )
HALL( - )
HALL( + )
BIAS( - )
ZOOM RST
FOCUS RST
FC_A
FC_B
FC_XA
FC_XB
TEMP COMP
SENS VCC
D3.2V 2
3
1
IC401
IC402
(2/4)
HALL AMP
5
6
7
IC404
(3/4)
HALL AMP
8
9
10
IC404
VREF BUFFER
1
D3.2V
4
IC405
83
88
97
38
45
29
36
AGC CONT1
7
AGC CONT2
8
FLASH ADJ
11
F CHG
6
IRIS CONT1
IRIS CONT2
4
HALL
OFFSET
HALL
GAIN
5
CLK 19
SI 20
SO 21
XCS 22
VREF PYPA 12
+
–
+
–
+
–
+
–
+
–
+
–
12
INVERTER
Q403
INVERTER
FOCUS/ZOOM MOTOR DRIVE
IC403
FOCUS/ZOOM CONTROL DECODER
M
M
M
1
6
2
3
5
4
17
19
7
8
9
10
11
12
13
14
15
20
HALL
SENSOR
ZOOM
SENSOR
FOCUS
SENSOR
M902
ZOOM MOTOR
M901
FOCUS MOTOR
TEMP
SENSOR
8
10
A3 EN4
EN3
IN4
IN3
A4
22
20
19
17
18
16
B3
B4
515
13
14
12
A1 EN2
EN1
IN2
IN1
7A2
26 B1
24 B2
SENS 0
SENS 1
VD IN
19
18
1
6
9
SO
CLR
3
CS
5
SI
4
SCK
17 EN1
16
15
DIR 1B
DIR 1A
14 END
13 DIR 0B
12 DIR 0A
Q401
ZOOM SENS
SWITCH LENS RST LED IC702 3
LENS TEMP AD IC702 79
RST PDR 94
IC702
FC RST SENS 66
IC702
ZM RST SENS 67
IC702
HALL AD 80
IC702
CS CAM D/A 25
IC702
CAM DD ON 37
IC702
TG CS 92
IC702
RST SYS 9
IC702
G CAM STBY 95
IC702
XRST CORE 91
IC702
CAM SI 33
IC702
CAM SO 34
IC702
CAM SCK 35
IC702
SL SHUTTER WE 68
IC702
CS IDIC 24
IC702
MCK 78
IC503
CAC VD 82
IC503
CA HD
CA VD
81
IC503
CAY0-7
TO
FDD INTERFACE BLOCK
(SEE PAGE 3-7)
83-87,89-91
80
IC503
VREF PYRA 13 17 21
IC601
IC503
CAC0-7 IC503 92-99
TO
MODE CONTROL BLOCK
(SEE PAGE 3-11)
Z_A
Z_B
Z_XA
Z_XB
05
3REC
47.6Vp-p
H
1REC
27.6Vp-p
H
7REC 1.5Vp-p
H
!™ REC
0.025µsec 6Vp-p
!£ REC
!¢
0.025µsec
6Vp-p
REC
0.025µsec 3.2Vp-p
!§ REC
2.3Vp-p
0.025µsec
REC
2.3Vp-p
28.63MHz



47
210 -
-5.5V
-5.5V
MVC-FD71

MVC-FD71
3-7 3-8 3-9
3-3. FDD INTERFACE BLOCK DIAGRAM
37
44
89
91
83
87
92
99
.
7 12 100
3 5..
RST SYS
RAS
HISO
CASL
CASH
WE
OE
AD0 9
29 36
38 45
IC501
FC-66 BOARD
IC807
FLASH MEMORY
DRC
27
32
21
24
.7
10
2
5
.
46
49
.
41
44
.
38
45
29
36
.
18
25
7
8
.
RAS
CASL
CASH
WE
OE
A0
A9
A0
A9
D0
D15
DQ0
DQ7
RAS
CASL
CASH
WE
OE
DRAM(16M)
64
66
72
75
58
62
.
CS OSD
HI SO
HI SCK
HI SCK
RSTSYS RSTSYS
IC705
OSD
HSYNC
SYS H
IC503
32
34
24
30
.
BREQ
IC806
A0(HBS)
A01,02
MCD00
MCD15
AD0
AD15
SYSTEM CONTROL
155
162
164
158
.
.
144
142
.
146
152
.
148
PB3
PC3
PB6
PB4
CS2
RO
WR
PC0
PC2
PB1
PB0
PC5
RAS
CASL
CASH
IRQ6
IRQ7
NMI
PB9
EXTAL
XTAL
RXD0
SCK0
RAS
CASL
CASH
D0
D7
D0
D7
B0
B7
62
57
60
.
.
63
.
65
67
.
IC803
SHOCK SENSOR
IC805
SHOCK
SIG DET.
READY
IC802
WR
RD
ENRW
RESET
DMAAK
INT
TC
A0
WE
WPRO
WDATA
RDATA
INDEX
DIR
STEP
TRK0
SIDE
FDD CONTROL
IC801
BUS BUFFER
IC804
5
2
BUFFER
Q601
BUFFER
Q602
BUFFER
Q603
CGR
CS
RST SYS
CS IDIC2
HI SCK
HI SO
RST SYS
CS IDIC2
HI SCK
HI SO
RST SYS
HI SCK
HI SO
IC601
D/A CONV.
VREF PYRA IC301 12 BLOCK
CAMERA
TO
17
16
21
11
13
CN602
56
44
47
51
CN602 CN603 CN602
CN601
50
43
37
55
54
40
39
38
42
41
48
ERASE
R/W A
R/W B
R/W B
R/W A
ERASE
X601
4MHz
SSI
T00
ISTP
IDIR
IDXO
RDO
IWD
WPO
IWG
DCO
RDYO
M ON
DSEL
DIIV
SIDE 1 SEL
TRACK 00
STEP
DIRECTION
INDEX
READ DATA
WRITE DATA
WRITE PROTECT
WRITE GATE
DISK CHANGE
FD READY
MOTOR ON
DRIVE SELECT
X2DD
DISK IN
PANEL G
CN603
PK-43 BOARD
LCD BLOCK
CAY0 7
MCK
IC702 MC CANCEL
MC NMI
96
IC702 50
IC702 99 DR BUS RQ
IC104
IC103 38
IC104 85
IC104 CAC0 7
CA HD
IC104 58
IC104 65
IC403 1
CA VD
IC104 57
CACVD
CAMERA
BLOCK
TO
MODE CONTROL
BLOCK
TO
8
8C0
C7
Y0
Y7
HD
VD
XVOC
STRBONSTRBON
DR BUS RQ
RAS
CASL
CASH
RST SYS
WE
OE
D0 15
10
16
SYS V
XSCK
MCK
BUS RQ
C0
C3
Y0
Y7
78
81
80
82
53
41
40
SI
45
34
36
35
37
39
42
XCS 44
78
CSIDIC2
43
56
57
MCK
VSYNC
SCLK
S IN
CS
4
20
19
8
1
3
2
15
18
16
17
CGG
CGB
CGBLK
VD
HD
VCK
MCK
SCK
SI
RST
VREF G
VREF B
VREF R
AVDD1
AVDD2
DVDD1
HDO
IOB
IOG
IOR
Y0
Y7
C0
C3
8
4
31
34
45
46
23
19
14
47
6
18
22
21
17
13
D3.2V
L601
48
36
32
128
29
26
27
PANEL R
PANEL B
PANEL HD
PANEL VD
SYS V IC702 62
IC702 9
IC702 28
IC702 46
IC702 45
CS OSD IC702 43
BLOCK
MODE CONTROL
TO
10
10
16
16
18
35
34
17
33
X802
15MHz 107
108
3
1
117
116
27
62
61
58
26
28
24
29
RES
2
10
118
IRQ1
119 59
53
57
23
13
11
12
69
10 16
62
WE
OE
SE801
1
2
987
4
6
3
D4.9V
Q801
1
6
3
5
1
3
6
7
9
13
5
2
75
68
69
71
72
76
42
4
11
10
8
12
18
Q
Q
RD
CK
PS
S1
VR2
A0 B1 B0
OUT
VCC
1
24
30
4
47
46
48
45
69
71
70
51
13
EN
EM2 100
26
11
27
76
8
10
24
36
A01
A02 50
49
42
43
16
82
83
86
D4.9V
L801
X803
16MHz
RSEL
CS
XB1
XA2
XA1
VDD2
VDD1
VDD1
8
4
DISK INIC702 18
IC702 HISI
44
IC703 4
TO
05
(SEE PAGE 15,18,26,29)
(SEE PAGE 3-6)
(SEE PAGE 3-11)
(SEE PAGE 3-13)
(SEE PAGE 3-6)
(SEE PAGE 3-11)
TO
POWER BLOCK
(SEE PAGE 3-17)
5
17
14
10
11
18
24
6
7
21
22
23
19
20
13
9
5
7
6
4
2
13
12
17
16
11
6
CLOCK
FPTS
HOS
MC
INDEX
PA
PNA
43
47
51
50
48
47
26
28 PB
PNB
STBY
TOS1
DISK
E01
RW1B
RW1A
RW0B
RW0A
E00
OSCO
OSCI
CPO
FPTS
HDS
MC
INDEX
PA0
PA1
PB0
PB1
STBY
TOSI
DISK IN
35
33
22
21
52
IC601
FLOPPY DISK
DRIVE UNIT
FDD INTERFACE
PK-43 BOARD
(SEE PAGE 4-42)
7
3
5
8
1
18
15 20 .22 25 .27 29.31 33
.
@£ REC/PB
1Vp-p
H
$§ REC/PB
3.2Vp-p
V
$∞ REC/PB
3.2Vp-p
H
$¶ REC/PB
3.1Vp-p
H
!ª REC/PB
0.8Vp-p
H
#¶-$¢ REC/PB
3.2Vp-p
0.025µsec
!¢ REC/PB
1Vp-p
H
*£ REC/PB
3.2Vp-p
16MHz
PB
3.2Vp-p
15MHz
107



$™ REC/PB
5Vp-p
4MHz
21
DISK IN