Printed Wiring Board And Schematic Diagram - Sony MVC-FD83 Service Manual

MVC-FD83/FD88
4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
(For printed wiring boards) (Measuring conditions voltage and waveform)
• b: Pattern from the side which enables seeing. • Voltages and waveforms are measured between the
(The other layers' patterns are not indicated.)
measurement points and ground when camera shoots
• Through hole is omitted. color bar chart of pattern box. They are reference values
• Circled numbers refer to waveforms. and reference waveforms. *
• There are few cases that the part printed on diagram
(VOM of DC 10 MΩ input impedance is used)
isn't mounted in this model.
• Voltage values change depending upon input impedance
• Chip parts. of VOM used.)
Transistor Diode
5 5 3 3 3
C 6 4 4 5 6 1 2 1 2 1. Connection
Pattern box
B E 1 2 3 3 2 1 3 2 1 5 4 3 2 1 2 1 2 1
(For schematic diagrams)
• All capacitors are in µF unless otherwise noted. pF : µ
µF. 50 V or less are not indicated except for electrolytics
and tantalums.
• Chip resistors are 1/10 W unless otherwise noted.
kΩ=1000 Ω, MΩ=1000 kΩ.
• 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.
Front side of the lens
Example C541 L452
22U 10UH
TA A 2520
Kinds of capacitor
Temperature characteristics
2. Adjust the distance so that the output waveform of Fig.
External dimensions (mm)
a and the Fig. b can be obtain.
• 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
Fig. a (Video output terminal output waveform)
• 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.
Fig.b (Picture on monitor TV)
Note : The components identified by mark ! or
dotted line with mark ! are critical for safety.
Replace only with part number specified. When indicating parts by reference number, please
include the board name.
Note : Les composants identifiés par une marque
! sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifie.
CCD IMAGER
CD-228
4-4
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
C
B E
CD-228
BOARD
L
3
2
1
L = About 90 cm
05
H
A B A=B B A
RL-54 (FD83)
RL-56 (FD88)
(RELEASE SWITCH)
Color bar chart
picture frame
Monitor TV
picture frame
FU-135 (FD83)
FU-137 (FD88)
(DC IN)
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
5
4
11
1-674-167-
PK-47 (FD83)
PK-48 (FD88)
REC/PB AMP, MOTOR DRIVE,
LCD DRIVE, TIMING GENERATOR,
MODE SWITCH, BACK LIGHT DRIVE
CD-228 (FD88)
CD-229 (FD83)
(CCD IMAGER)
4-5
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.
4-6
CD-228 BOARD
1
8.4 Vp-p
125 µsec
IC201 1, 2, 3 REC
2
8.4 Vp-p
125 µsec
IC201 4, 5, 6 REC
3
1.2 Vp-p
125 µsec
IC201 8 REC
4
5.0 Vp-p
83 nsec
IC201 !∞, !§ REC
5
4.3 Vp-p
83 nsec
IC201 !¢ REC