4-2. SCHEMA4-2. SCHEMATIC DIAGRAMSTIC DIAGRAMS
4-2.SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
(For schematic diagrams)1. Connection
? All capacitors are in ?F unless otherwise noted. pF : ?
Link?F. 50 V or less are not indicated except for electrolytics
Pattern box
and tantalums.
? Chip resistors are 1/10 W unless otherwise noted.
k&=1000 &, M&=1000 k&.
? Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
L
capacitor, Because it is damaged by the heat.
? Some chip part will be indicated as follows.
ExampleC541L452
Front of the lens
22U10UH
TA A2520
L = About 26 cm (PTB-450)
Kinds of capacitor
L = About 11 cm (PTB-1450)
Case Size
External dimensions (mm)
? Constants of resistors, capacitors, ICs and etc with XX
indicate that they are not used.2. Adjust the distance so that the output waveform of
In such cases, the unused circuits may be indicated.Fig. a and the Fig. b can be obtain.
? Parts with differ according to the model/destination.
H
Refer to the mount table for each function.
? All variable and adjustable resistors have characteristicellow
Y
curve B, unless otherwise noted.CyanWhite
GreenMagentaRed
? Signal nameBlue
XEDIT? EDITPB/XREC ? PB/REC
? 2: non flammable resistor
? 5: fusible resistor
? C: panel designationBB
? A: B+ LineAA=B/2A
? B: B� LineFig. a (Video output terminal output waveform)
? J : IN/OUT direction of (+,�) B LINE.
? C: adjustment for repair.
Electronic beam
? A: VIDEO SIGNAL (ANALOG)
scanning frame
? A: AUDIO SIGNAL (ANALOG)
? A: VIDEO/AUDIO SIGNALCRT picture frame
? A: VIDEO/AUDIO/SERVO SIGNAL
? A: SERVO SIGNAL
? Circled numbers refer to waveforms.
(Measuring conditions voltage and waveform)
? Voltages and waveforms are measured between theFig.b (Picture on monitor TV)
measurement points and ground when camera shoots
color bar chart of pattern box. They are reference vWhen indicating paraluests by reference number, please
and reference waveforms.include the board name.
(VOM of DC 10 M& input impedance is used)
? Voltage values change depending upon input
impedance of VOM used.)
Note : The components identified b0y mar or k Note : Les composants identifiŽs par une marque
dotted line with mar0 are crk itical for safety.0 sont critiques pour la sŽcuritŽ.
Replace only with part number specified.Ne les remplacer que par une piŹce portant
le numŽro spŽcifie.
DSC-F88
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ACEC
