Sony MZ-R50 Service Manual - Page 40

6-5. SCHEMATIC DIAGRAM - MAIN (1/3) SECTION - r Refer to page 61 for IC Block Diagram. - 49 - - 50 - - 51 - r WAVEFORMS 1 1.1Vp-p IC501 #• 2 VOLT/DIV : 0.5V AC TIME/DIV : 1µsec Approx. 0.5Vp-p IC501 @ª VOLT/DIV : 0.1V AC TIME/DIV : 1msec 3 2.8Vp-p 13.4msec IC503 !¡ 4 VOLT/DIV : 1V AC TIME/DIV : 5msec 2.8Vp-p 22.5MHz IC503 !¶ VOLT/DIV : 1V AC TIME/DIV : 20nsec Note: • All capacitors are in µF unless otherwise noted. pF: µµF 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. Note: Note: The components identi- Les composants identifiés fied by mark ! or dotted par une marque ! sont cri- line with mark ! are cri- tiques pour la sécurité. tical for safety. Ne les remplacer que par Replace only with part une piéce portant le number specified. numéro spécifié. • A : B+ Line. • Power voltage is dc 6V and fed with regulated dc power supply from external power voltage jack (J901). • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : PB ( ) : REC • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc- tion tolerances. • Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal produc- tion tolerances. • Circled numbers refer to waveforms. • Signal path. E : PB a : REC - 52 - MZ-R50