4-2. SCHEMA4-2. SCHEMATIC DIAGRAMSTIC DIGARAMSENGLISHENGLISHJAPJAPANESEANESE
(ENGLISH)
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 boxColor bar chart
Link?F. 50 V or less are not indicated except for electrolytics
and tantalums.Pattern box PTB-450For PTB-450:
J-6082-200-AJ-6020-250-A
Y Chip resistors are 1/10 W unless otherwise noted.
or
k&=1000 &, M& =1000 k&.For PTB-1450:
Small pattern box
Y Caution when replacing chip parts.PTB-1450J-6082-559-A
New parts must be attached after removal of chip.J-6082-557-A
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
1. Connection
Y Some chip part will be indicated as follows.
Patterm box
ExampleC541L452
22U10UH
TA A2520
Kinds of capacitor0.4m (PTB-1450)
1.0m (PTB-450)
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.
Front of the lens
Y Parts with * differ according to the model/destination.
Refer to the mount table for each function.
Y All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
Y Signal name
XEDIT ? EDITPB/XREC ? PB/REC
Y 2: non flammable resistor2. Adjust the distance so that the output waveform of
Y 5: fusible resistorFig. a and the Fig. b can be obtain.
Y C: panel designation
H
Y A: B+ Line
Y B: B� Line
Yellow
YJ : IN/OUT direction of (+,�) B LINE.CyanWhite
GreenMagenta
Y C: adjustment for repair.Red
Blue
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
color bar chart of pattern box. They are reference valuesAABBA=B
and reference waveforms.
Fig. a (Video output terminal output waveform)
(VOM of DC 10 M& input impedance is used)
Y Voltage values change depending upon input
impedance of VOM used.)
Electronic beam
scanning frame
Precautions Upon Replacing CCD imager
Y The FP-048 board mounted as a repair part is not equipped
CRT picture frame
with a CCD imager.
When replacing this board, remove the CCD imager from
the old one and mount it onto the new one.
Y If the CCD imager has been replaced, carry out all theFig.b (Picture on monitor TV)
adjustments for the camera section.
When indicating parts by reference number, please
Y As the CCD imager may be damaged by static electricity
include the board name.
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.Note :Note :
The components identified byLes composants identifiŽs par
mark 0 or dotted line with markune marque 0 sont critiques
0 are critical for safety.pour la sŽcuritŽ.
Replace only with part numberNe les remplacer que par une
specified.piŹce portant le numŽro spŽcifiŽ.
DCR-PC53E/PC55/PC55E
4-3 |
ACEC
SONY
