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.
• 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
[
] : 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.
• 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
• 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
µ
s/DIV
2 V/DIV, 40 ns/DIV
2 V/DIV, 4
µ
s/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
µ
s/DIV
31
µ
s
3.0 Vp-p
7
IC7113
wd
(XO)
