DCR-HC16E/HC18E/HC20/HC20E
4-2. SCHEMA4-2. SCHEMATIC DIAGRAMSTIC 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
Y All capacitors are in ?F unless otherwise noted. pF : ?Pattern box
Link?F. 50 V or less are not indicated except for electrolytics
and tantalums.
Y Chip resistors are 1/10 W unless otherwise noted.
k& =1000 & , M& =1000 k& .
Y Caution when replacing chip parts.
New parts must be attached after removal of chip.1.0 m
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
Y Some chip part will be indicated as follows.
ExampleC541L452
22U10UH
TA A2520
Front of the lens
Kinds of capacitor
Temperature characteristics
External dimensions (mm)
Y Constants of resistors, capacitors, ICs and etc with XX
indicate that they are not used.
In such cases, the unused circuits may be indicated.
Y Parts with * differ according to the model/destination.2. Adjust the distance so that the output waveform of
Refer to the mount table for each function.Fig. a and the Fig. b can be obtain.
Y All variable and adjustable resistors have characteristic
H
curve B, unless otherwise noted.
Y Signal name
Yellow
XEDIT? EDITPB/XREC ? PB/RECCyanWhite
GreenMagenta
Y 2: non flammable resistorRed
Blue
Y 5: fusible resistor
Y C: panel designation
Y A: B+ Line
Y B: B� Line
Y J : IN/OUT direction of (+,�) B LINE.AABBA=B
Y C: adjustment for repair.Fig. a (Video output terminal output waveform)
Y A: VIDEO SIGNAL (ANALOG)
Y A: AUDIO SIGNAL (ANALOG)
Y A: VIDEO/AUDIO SIGNAL (ANALOG)
Y A: VIDEO/AUDIO/SERVO SIGNAL
Y A: SERVO SIGNAL
Y Circled numbers refer to waveforms.
(Measuring conditions voltage and waveform)
Y Voltages and waveforms are measured between the
measurement points and ground when camera shoots
Fig.b (Picture on monitor TV)
color bar chart of pattern box. They are reference values
and reference waveforms.
(VOM of DC 10 M& input impedance is used)When indicating parts by reference number, please
Y Voltage values change depending upon inputinclude the board name.
impedance of VOM used.)
Note :Note :
Precautions Upon Replacing CCD imagerThe components identified bLes composants identifiyŽs par
mark 0 or dotted line with marune marque k0 sont critiques
YThe CD-489 board mounted as a repair part is not equipped
0 are critical for safety.pour la sŽcuritŽ.
with a CCD imager.Replace only with part numberNe les remplacer que par une
When replacing this board, remove the CCD imager fromspecified.piŹce portant le nŽro spumŽcifiŽ.
the old one and mount it onto the new one.
YIf the CCD imager has been replaced, carry out all the
adjustments for the camera section.
YAs 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.
4-5 |
ACEC
