Sony Mavica MVC-FD83, Руководство по обслуживанию, Страница: 34 / 113

MVC-FD83/FD88
4-4 4-5
4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(For printed wiring boards)
•
b
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Through hole is omitted.
• Circled numbers refer to waveforms.
• There are few cases that the part printed on diagram
isn’t mounted in this model.
• Chip parts.
(For schematic diagrams)
• All capacitors are in
µ
F unless otherwise noted. pF :
µ
µ
F. 50 V or less are not indicated except for electrolytics
and tantalums.
• Chip resistors are 1/10 W unless otherwise noted.
k
Ω
=1000
Ω
, M
Ω
=1000 k
Ω
.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
• Some chip part will be indicated as follows.
Example C541 L452
22U 10UH
TA A 2520
• Constants of resistors, capacitors, ICs and etc with XX
indicate that they are not used.
In such cases, the unused circuits may be indicated.
• Parts with
★
differ according to the model/destination.
Refer to the mount table for each function.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• Signal name
XEDIT
→
EDIT PB/XREC
→
PB/REC
•
2
: non flammable resistor
•
1
: fusible resistor
•
C
: panel designation
•
A
: B+ Line *
•
B
: B– Line
*
•
J
: IN/OUT direction of (+,–) B LINE.
*
•
C
: adjustment for repair. *
• Circled numbers refer to waveforms. *
* Indicated by the color red.
Note : The components identified by mark
!
or
dotted line with mark ! are critical for safety.
Replace only with part number specified.
Note : Les composants identifiés par une marque
! sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifie.
(Measuring conditions voltage and waveform)
• Voltages and waveforms are measured between the
measurement points and ground when camera shoots
color bar chart of pattern box. They are reference values
and reference waveforms.
*
(VOM of DC 10 M
Ω
input impedance is used)
• Voltage values change depending upon input impedance
of VOM used.)
1. Connection
2. Adjust the distance so that the output waveform of Fig.
a and the Fig. b can be obtain.
When indicating parts by reference number, please
include the board name.
Y
ello
w
A A B B A=B
Fig. a (Video output terminal output waveform)
Fig.b (Picture on monitor TV)
Color bar chart
picture frame
Monitor TV
picture frame
H
Cy
an
Green
White
Magenta
Red
Blue
Y
ello
w
Cy
an
Green
White
Magenta
Red
Blue
THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
Kinds of capacitor
Temperature characteristics
External dimensions (mm)
2 1
3
2 1
3
2 1
3
3 4 5
2 1
1 2 3
6 5 4
E B
C
3 1
5 5
2
4 6
1 2 3
2 1
Transistor Diode
CCD IMAGER
CD-228
4-6
CD-228 (CCD IMAGER) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
– Ref. No.: CD-228 board; 2,000 series –
– MVC-FD88 –
• For Printed Wiring Board.
• CD-228 board is 4-layer print board. However, the patterns of
layers 2 to 3 have not been included in the diagram.
• There are few cases that the part isn't mounted in this model
is printed on this diagram.
• Chip transistor
E B
C
Precautions for Replacement of CCD Imager
• The CD-228 board mounted as a repair part is not equipped
with a CCD imager.
When replacing this board, remove the CCD imager from the
old one and mount it onto the new one.
• If the CCD imager has been replaced, carry out all the
adjustments for the camera section.
• As the CCD imager may be damaged by static electricity from
its structure, handle it carefully like for the MOS IC.
In addition, ensure that the receiver is not covered with dusts
nor exposed to strong light.
CD-228 BOARD
L
Front side of the lens
L = About 90 cm
Pattern box
8.4 Vp-p
8.4 Vp-p
1.2 Vp-p
5.0 Vp-p
4.3 Vp-p
125
µ
sec
125
µ
sec
125
µ
sec
83 nsec
83 nsec
1
2
3
4
5
IC201
1
,
2
,
3
REC
IC201
4
,
5
,
6
REC
IC201
8
REC
IC201
!∞
,
!§
REC
IC201
!¢
REC
RL-54 (FD83)
RL-56 (FD88)
(RELEASE SWITCH)
PK-47 (FD83)
PK-48 (FD88)
REC/PB AMP, MOTOR DRIVE,
LCD DRIVE, TIMING GENERATOR,
MODE SWITCH, BACK LIGHT DRIVE
FU-135 (FD83)
FU-137 (FD88)
(DC IN)
CD-228 (FD88)
CD-229 (FD83)
(CCD IMAGER)
Flush Unit
FC-70
CAMERA SIGNAL PROCESS, CAMERA DSP,
VIDEO DECODER, LENS MOTOR DRIVE,
AUDIO INTERFACE, MEDIA CONTROL, FD CONTROL,
A/V OUT, AUDIO A/D D/A CONVERTER,
DC/DC CONVERTER
05
1-674-167-
11
CD-228
BOARD
5
4
1
2
3