Schematic Diagram - Cd Section - Sony CFD-Z125 Service Manual

• Waveforms
1 1msec/div 6 !¡ 0.1µsec/div
IC701 1 (FEO) IC702 $§ (BCK), $¶ (BCK1) IC801 @∞ (CF IN)
1V/div
0.2V/div
5.4Vp-p 4.0Vp-p
0.36Vp-p
0.2µsec/div
1V/div 4MHz
2 0.5µsec/div 7 !™
IC701 #¡ (RF0) IC702 &£ (XTA1) 20nsec/div IC801 @§ (CF OUT) 0.1µsec/div
0.5V/div
1V/div 1V/div
4.8Vp-p
5.2Vp-p
0.8 to 1.8Vp-p 16.9344MHz 4MHz
3 8 20nsec/div !£
IC701 $™ (TEO) 1msec/div IC702 &¢ (XTA0) IC801 &•, &∞ – ^º (SEG1-17)
1V/div
50mV/div
1msec/div
STOP mode
0.5V/div
1.2Vp-p 5.8Vp-p
1.6Vp-p
16.9344MHz
4 50µsec/div 9 !¢
IC702 @∞ (MDP) IC801 !ª (XT OUT) 20µsec/div IC801 2, 1, *º, &ª
(COM1-4)
2V/div
1V/div
5msec/div
1V/div
2.8Vp-p
4.8Vp-p
4.4Vp-p
32.768kHz
5 !º 20µsec/div
IC702 $™ (LRCK), $£ (LRCK1) IC801 @º (XT IN)
1V/div
10µsec/div
1V/div
3.2Vp-p
4.8Vp-p
32.768kHz
Note on Schematic Diagram:
• 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.
¢
• : internal component.
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 9 V 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 play
• 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
— 31 —
6-4. SCHEMATIC DIAGRAM — CD SECTION — • See page 47 for IC Pin Function. • See page 27 for IC Block Diagrams.
1 2 3 4
A
B
C
D
E
F
G
H
I
J
K
L
— 32 —
5 6 7 8 9
— 33 —
10 11 12 13 14
— 34 —
CFD-Z125/Z135
15 16 17