Printed Wiring Boards And Schematic Diagrams; Frame Schematic Diagram; Schematic Diagrams - Sony CCD-TRV32 Service Manual

SECTION 4

PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

4-1. FRAME SCHEMATIC DIAGRAM

4-1 4-2
CCD-TRV32/TRV34/TRV34PK/TRV44/TRV52/TRV53/TRV312/TRV512(NTSC)
4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• For printed wiring boards.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• : Through hole is omitted.
• Printed wiring board which has four layers structure but
inner two layers' patterns are omitted.
Caution :
SIDE A : The pattern face side which is seen when
the upper case is opened.
SIDE B : The opposite pattern face side to the pattern
seen when the upper case is opened.
• Chip parts (transistor)
C 2C1B1E 1C
B E 2E 2B1C 1B E 2B
• For schematic diagrams.
• 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.
• All resistor are in ohms, 1/4W unless otherwise noted.
Chip resistor are 1/10W unless otherwise noted.
kΩ: 1000Ω, MΩ, : 1000kΩ.
• All capacitors are in µF unless otherwise noted. pF : µ
µF. 50V or less are not indicated except for electrolytics
and tantalums.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• : nonflammable resistor.
• : fusible resistor.
• : panel designation.
• : internal component.
• : adjustment for repair. *
• : B+Line. *
• : B+Line. *
• : IN/OUT direction of (+,–) B LINE. *
• Circled numbers refer to waveforms. *
• Signal name
XEDIT → EDIT PB/XREC → PB/REC
Note : Les composants identifiés par une marque
! sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifie.
Note : The components identified by mark ! or
dotted line with mark ! are critical for safety.
Replace only with part number specified.
4-3
CCD-TRV14E/TRV24E/TRV44E(PAL)
• 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 MΩ input impedance is used.).
• Voltage values change depending upon input impedance
of VOM used.)
1. Connection
Pattern box
Front side of the lens
C: Collector
2C
B: Base 1.5 m
E: Emitter
2. Adjust the distance so that the output waveform of Fig.
a and the Fig. b can be obtain.
H
A B A = B B A
Fig.a (Video output terminal output waveform)
Electron beam
scanned frame
CRT picture frame
Fig.b (Picture on monitor TV)
When indicating parts by reference number, pleas
include the board name.
• * : indicated by the color red.
FRAME SCHEMATIC DIAGRAM
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