Sony sa wp 785 service manual

Page 2

3 SA-WP785 SECTION 1 DIAGRAMS Note on Printed Wiring Boards: - X : parts extracted from the component side. - a : Through hole. - : P attern from the side which enables seeing. - Indication of transistor. Note on Schematic Diagrams: - All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. - 2 : nonflammable resistor. - 5 : fusible resistor. - All resistors are in Ω and 1/4 W or less unless otherwise specified. - C : panel designation. - A : B+ Line. - B : B– Line. -V oltages and dc with respect to ground under no-signal conditions. no mark : Power on -V oltages are taken with a VOM (Input impedance 10 M Ω). V oltage variations may be noted due to normal production tolerances. - Signal path. F : AUDIO -Ab breviation AU S: Australian model SP : Singapore model THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) - Circuit Boards Location B These are omitted. CE B These are omitted. CE Q Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. POWER TRANS board MAIN board INPUT CONTROL board SWITCH board LED board