Schematic Diagram (Cd Section) - Sony CFD-ZW755 Service Manual

5-8. SCHEMATIC DIAGRAM (CD SECTION)

Refer to page 42 – 43 for IC Block Diagrams.
z
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
50 WV or less are not indicated except for electrolytics
no mark : STOP
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise (
4
• Voltages are taken with a VOM (Input impedance 10 MΩ).
specified.
Voltage variations may be noted due to normal produc-
Note: The components identified by mark 0 or dotted
tion tolerances.
line with mark 0 are critical for safety.
• Waveforms are taken with a oscilloscope.
Replace only with part number specified.
Voltage variations may be noted due to normal produc-
• U : B+ Line.
tion tolerances.
• Power voltage is dc 9 V and fed with regulated dc power
• Circled numbers refer to waveforms.
supply from battery terminal.
• Signal path.
J
– 37 –
All manuals and user guides at all-guides.com
) : PLAY
: CD
– 38 –
CFD-ZW
Waveforms (CD SECTION)
r
(PLAY MODE)
1
0.9 – 1.5Vp-p
IC701 ed
VOLT/DIV : 0.5 V AC
TIME/DIV : 1 µsec
(RFO)
2
(PLAY MODE)
0.6Vp-p
IC701 6
VOLT/DIV : 1 V AC
(FEO)
TIME/DIV : 1 msec
3 (PLAY MODE)
0.7Vp-p
IC701 rg
VOLT/DIV : 20mV AC
(TEO)
TIME/DIV : 1 msec
4
1.6Vp-p
0.1162MHz
8.6 µsec
IC703 wl
VOLT/DIV : 0.5 V AC
(PCO)
TIME/DIV : 5 µsec
5
5Vp-p
22.85 µsec
IC703 el, r;
VOLT/DIV : 1 V AC
(LRCK)
TIME/DIV : 5 µsec
6
2.3Vp-p
16.9344MHz
IC703 ua
VOLT/DIV : 0.5V AC
(XTAO)
TIME/DIV : 20 nsec
– 39 –