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ICD-S7
Note on Schematic Diagrams:
• 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
specified.
•
: internal component.
f
• 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
[
] : PB
∗
: Impossible to measure
• 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.
F
: PB
L : REC
* Replacement of IC6201, IC7102 used in this set requires
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.
Note on Printed Wiring Boards:
• Y : parts extracted from the conductor side.
• b : Pattern from the side which enables seeing.
Caution:
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.
• Lead layouts
Lead layout of
conventional IC
10
SECTION 4
DIAGRAMS
W or less unless otherwise
surface
CSP (chip size package)
• WAVEFORMS
1
IC7101 wd (SCK1)
3.1 Vp-p
5.1 µ s
2 V/DIV, 4 µs/DIV
2
IC7101 wl (SIPCLK)
3.0 Vp-p
5.7 µ s
2 V/DIV, 4 µs/DIV
3
IC7101 es
(DSPSYSCK)
3.1 Vp-p
567 ns
2 V/DIV, 200 ns/DIV
4
IC7101 ef (FSCLK)
3.0 Vp-p
31 µ s
2 V/DIV, 10 µs/DIV
5
IC7101 ej (MSCLK)
4 Vp-p
70 ns
2 V/DIV, 40 ns/DIV
6
IC7101 yd (CF2)
3.9 Vp-p
71 ns
1 V/DIV, 40 ns/DIV
7
IC7113 wd (XO)
4.0 Vp-p
50 ns
2 V/DIV, 20 ns/DIV
8
IC8101 qd (X OUT)
(USB Connection)
3.7 Vp-p
8.33 ns
2 V/DIV, 40 ns/DIV
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