Sony ZS-M7 Service Manual ▷ View online
– 87 –
– 88 –
– 90 –
– 89 –
– 91 –
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Refer to page 102 for IC Block Diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
¢
: internal component.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD STOP
no mark : MD STOP
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
E
: MD PLAY
q
: MD REC
J
: CD
Note:
•
•
X
: parts extracted from the component side.
•
b
: Pattern on the side which is seen.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
6-15. SCHEMATIC DIAGRAM – DG SECTION –
6-16. PRINTED WIRING BOARDS – DG SECTION –
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Refer to page 53 for Circuit Boards Location.
ZS-M7
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Waveforms – DC Section –
1
IC502
@¶
VOLT/DIV : 0.2 V AC
TIME/DIV : 20 nsec
TIME/DIV : 20 nsec
2
IC502
@¢
VOLT/DIV : 0.5 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
0.63 Vp-p
12 MHz
2.3 Vp-p
32.768 kHz
Q503
H-3
Q504
H-2
Q507
J-3
Q509
H-4
Q510
H-2
Q511
I-4
Q520
I-6
Q521
I-6
Q522
I-5
Q551
G-6
Q552
G-5
Q553
G-6
Q554
G-5
D551
G-6
D552
J-2
IC501
H-4
IC502
D-8
IC503
G-2
IC504
J-1
IC505
C-6
IC506
K-7
IC507
K-8
Q501
H-1
Q502
K-2
Ref. No.
Location
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Semiconductor Location
Ref. No.
Location
– 97 –
– 99 –
– 98 –
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : FM
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
6-18. SCHEMATIC DIAGRAM – FRONT KEY SECTION –
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Waveforms – Front Key Section –
ZS-M7
1
IC401
$º
(XTAL)
VOLT/DIV : 0.2 V AC
TIME/DIV : 50 nsec
TIME/DIV : 50 nsec
1.0 Vp-p
6 MHz
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