Schematic Diagram - Main Section (2/2) - (New Type) - Sony cfd-s27 Service Manual

CFD-S27
r Waveforms
1
(PLAY MODE) 4
1.0 – 1.4
Vp-p
140.5 µ sec
IC701 #¡ IC702 #¡
VOLT/DIV : 200 mV AC
VOLT/DIV : 1 V AC
(RFO) TIME/DIV : 0.5 µsec TIME/DIV : 50 µsec
(MNT3)
2
5
4.8 Vp-p
242.0 µ sec
140.5 µ sec
IC702 @∞
IC702 #™
VOLT/DIV : 1 V AC VOLT/DIV : 1 V AC
(XPCK) TIME/DIV : 0.1 msec TIME/DIV : 50 µsec
(MNT1)
3
6
5.3 Vp-p
140.5 µ sec
16.9344 MHz
IC702 @• IC702 #∞
VOLT/DIV : 1 V AC VOLT/DIV : 0.2 V AC
TIME/DIV : 50 µsec
(RFCK)
(XTAO) TIME/DIV : 50 nsec
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.
Note: The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD STOP
• 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.
J : CD
– 43 –
5-8. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – (NEW TYPE)
5.3 Vp-p
5.3 Vp-p
1.1 Vp-p
– 44 –
r Refer to page 32 for IC Block Diagrams.
– 45 – – 46 –