Sony STR-K700 Service Manual - Page 11

SECTION 3 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For Schematic Diagrams. Note: • All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • % : indicates tolerance. • f : internal component. • 2 : nonflammable resistor. • 5 : fusible resistor. • C : panel designation. For Printed Wiring Boards. Note: • X : parts extracted from the component side. • a : Through hole. • f : internal component. • : Pattern from the side which enables seeing. Caution: Pattern face side: (Side A) Parts face side: (Side B) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated. 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 piéce portant le numéro spécifié. • A : B+ Line. • B : B+ Line. • Voltages and waveforms are dc with respect to ground un- der no-signal (detuned) conditions. No mark : FM • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. • Waveforms are taken with a oscilloscope. • Circled numbers refer to waveforms. • Signal path. F : FM J : ANALOG c : DIGITAL • Indication of transistor. C Q These are omitted. BE BCE These are omitted. • Circuit Boards Location POWER board STANDBY board MAIN board STR-K700 ADCC board HEADPHONE board DISPLAY board DIGITAL board • Waveforms - DIGITAL Board - 1 IC1501 9 (MCLK1) 72 ns 1 V/DIV, 40 ns/DIV 2 IC1101 id (X1) 3.4 Vp-p 41.6 ns 1 V/DIV, 20 ns/DIV 3 IC1301 ws (XIN) 4.2 Vp-p STR-K700 81 ns 1 V/DIV, 40 ns/DIV 11 11 4.4 Vp-p