Sony DCR-TRV10 Service Manual - Page 59

SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1. FRAME SCHEMATIC DIAGRAM 4-1 4-2 DCR-TRV8/TRV8E/TRV10/TRV10E 4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS (In addition to this, the necessary note is printed in each block) (For printed wiring boards) • b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) • Through hole is omitted. • Circled numbers refer to waveforms. • There are few cases that the part printed on diagram isn't mounted in this model. • Chip parts. Transistor Diode C 654 456 4 5 1 2 3 3 3 B E 123 321 321 543 21 21 21 (For schematic diagrams) • All capacitors are in µF unless otherwise noted. pF : µµF. 50V or less are not indicated except for electrolytics and tantalums. • Chip resistors are 1/10W unless otherwise noted. kΩ=1000Ω, MΩ=1000kΩ. • 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, Be- cause 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 Temperature characteristics External dimensions (mm) • 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 5 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 • 1 : fusible resistor • C : panel designation • A : B+ Line * • B : B- Line * • J : IN/OUT direction of (+,-) B LINE. * • C : adjustment for repair. * • Circled numbers refer to waveforms. * * Indicated by the color red. • Abbreviation AUS: Australian model JE: Tourist model CND: Canadian model CN: Chinese mode HK: Hong Kong model Note : The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Note : Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. (Measuring conditions voltage and waveform) • Voltages and waveforms are measured between the measure- ment 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 1.5m Front side of the lens 2. Adjust the distance so that the output waveform of Fig. a and the Fig. b can be obtain. H Yellow Cyan Green White Magenta Red Blue AB A=B BA Fig. a (Video output terminal output waveform) Electron beam scanned frame CRT picture frame Yellow Cyan Green White Magenta Red Blue Fig.b (Picture on monitor TV) When indicating parts by reference number, pleas include the board name. FRAME SCHEMATIC DIAGRAM 4-3 4-4