Sony CFD-Z125 - Cd Radio Cassette-corder, Руководство по обслуживанию

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