Sony SPP-A940 Service Manual page 3

2. SCHEMATIC DIAGRAM (DSP SECTION)
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 / W or less unless otherwise
4
specified.
• U : B+ Line.
• Power voltage is dc10V and fed with regulated dc power
supply from external power voltage jack (J8).
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
• 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.
Waveform
r
1
4.6 Vp-p
244 nS
IC6 !§ XOUT
– 5 –
SPP-A940
– 6 –