Read Sony ICD-S7 Service Manual online
10
ICD-S7
SECTION 4
DIAGRAMS
Note on Schematic Diagrams:
• 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.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 3V 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 : REC
[
no mark : REC
[
] : PB
∗
: Impossible to measure
• 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.
F
: PB
L
: REC
*
Replacement of IC6201, IC7102 used in this set requires
a special tool.
a special tool.
•
The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
cannot be measured, because its lead layout is different
from that of conventional IC.
Note on Printed Wiring Boards:
• Y
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(SIDE B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(SIDE A)
the parts face are indicated.
*
Replacement of IC6201, IC7102 used in this set requires
a special tool.
a special tool.
•
Lead layouts
• WAVEFORMS
surface
Lead layout of
conventional IC
CSP (chip size package)
1
IC7101 wd (SCK1)
2
IC7101 wl (SIPCLK)
3
IC7101 es
(DSPSYSCK)
5
IC7101 ej (MSCLK)
6
IC7101 yd (CF2)
8
IC8101 qd (X OUT)
(USB Connection)
2 V/DIV, 4
µs/DIV
2 V/DIV, 40 ns/DIV
2 V/DIV, 4
µs/DIV
2 V/DIV, 200 ns/DIV
1 V/DIV, 40 ns/DIV
5.7
µ
s
567 ns
3.0 Vp-p
4 Vp-p
70 ns
3.1 Vp-p
3.9 Vp-p
71 ns
2 V/DIV, 20 ns/DIV
2 V/DIV, 40 ns/DIV
3.7 Vp-p
8.33 ns
5.1
µ
s
3.1 Vp-p
4.0 Vp-p
50 ns
4
IC7101 ef (FSCLK)
2 V/DIV, 10
µs/DIV
31
µ
s
3.0 Vp-p
7
IC7113 wd (XO)
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