XR-C7350X
15
15
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
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM (MW/SW)
< > : TAPE PLAYBACK
∗
: 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
: FM
f
: AM (MW/SW)
E
: TAPE PLAYBACK
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
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
(Conductor Side) pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Component Side ) parts face are indicated.
1
2
WAVEFORMS
– MAIN BOARD –
IC501
qd
(OSC IN)
IC501
qg
(X IN)
30.5
µ
sec
2.2Vp-p
1
– KEY BOARD –
IC901
y;
(OSC)
0.58
µ
sec
1.1Vp-p
27
µ
sec
2.7Vp-p
7-3.
PRINTED WIRING BOARD – PRE OUT BOARD –
7-2.
SCHEMATIC DIAGRAM – PRE OUT BOARD –
(Page 17)
A
(Page 16)
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T E L
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
