SONY STRDE197
Service Manual

STR-DE197

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 diagram: � 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 � and 1/4 W or less unless otherwise specified. � f : internal component. � 2 : nonflammable resistor. � 1 : fusible resistor. � C : panel designation. 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. for printed wiring boards: � X : parts extracted from the component side. � f : internal component. � : Pattern from the side which enables seeing. � Abbreviation CND : Canadian model. C Q BE These are omitted.

Q BC Q BC E E These are omitted.

� A : B+ Line. � B : B� Line. � Voltage and waveforms are dc with respect to ground under no-signal (detuned) conditions. � no mark : FM Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : TUNER (FM/AM) L : VIDEO (AUDIO) J : CD (ANALOG) Abbreviation CND : Canadian model.

�

� �

�

14