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Q Q
3 7 6 3 1 5 1 5 0
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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
/
W or less unless otherwise
4
specified.
•
: internal component.
f
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : STOP
(
) : PLAY
• 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.
J
: CD
c : digital out
T E
L
1 3 9 4 2 2 9 6 5 1 3
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: parts mounted on the conductor side.
x
•
: Through hole.
a
• b : Pattern from the side which enables seeing.
(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.
• Abbreviation
AED : North European
• Indication of transistor
C
Q
These are omitted
B
E
B
C
E
These are omitted
w w w
.
http://www.xiaoyu163.com
x
a o
u 1 6 3
y
i
http://www.xiaoyu163.com
8
9
Waveforms
1
3.9Vp-p
33.8MHz
IC101
ua
XTAI
2
6
1.2Vp-p
(PLAY)
IC101
t;
RF AC
3
7
2.5V
APPROX 500mVp-p (PLAY)
IC101
TE
ra
8
4
2.5V
APPROX 200m Vp-p (PLAY)
IC101
FE
el
Q
Q
3
7
6
3
1
5
1
c o
.
13
13
2
4
2
9
8
5
4.4 Vp-p
5.64 MHz
IC301
ra
128FSO
1.6 Vp-p
45 MHz
IC301
wk
XOUT
3.2 Vp-p
16.9 MHz
IC301
INVO
1
3.9 Vp-p
8 MHz
IC501
EXTAL
el
5
0
8
9
2
4
9
8
m
CDP-XB740/XB740E
9
9
2
9
9
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