SONY DSC-L1 LEVEL3
Manual de Servicio

4-2. SCHEMATIC 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) � All capacitors are in µF unless otherwise noted. pF : µ Link V or less are not indicated except for electrolytics µF. 50 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 capacitor, Because it is damaged by the heat. � Some chip part will be indicated as follows. Example C541 L452 22U 10UH TA A 2520 Kinds of capacitor Case Size External dimensions (mm)
Front of the lens

1. Connection
Pattern box Color bar chart

Pattern box PTB-450 J-6082-200-A or Small pattern box PTB-1450 J-6082-557-A
Pattern box

For PTB-450: J-6020-250-A For PTB-1450: J-6082-559-A

L = About 28 cm(PTB-450) L = About 12 cm(PTB-1450)

L

� 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 � 5: fusible resistor � C: panel designation � A: B+ Line � B: B� Line � J : IN/OUT direction of (+,�) B LINE. � C: adjustment for repair. � A: not use circuit � Circled numbers refer to waveforms. (Measuring conditions voltage and waveform) � 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 M� input impedance is used) � Voltage values change depending upon input impedance of VOM used.)

Green

2. Adjust the distance so that the output waveform of Fig. a and the Fig. b can be obtain.
Cyan
H

Yellow

White Magenta Red
B A A=B/2 A Fig. a (Video output terminal output waveform) Electronic beam scanning frame CRT picture frame B Fig.b (Picture on monitor TV)

When indicating parts by reference number, please include the board name.

Note :

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Note :

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifie.

DSC-L1 4-5

Blue