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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.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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 pro-
duction tolerances.
• Circled numbers refer to waveforms.
• Signal path.
T E
F
L
1 3 9 4 2 2 9 6 5 1 3
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c : digital out
I : PHONO
For printed wiring boards.
Note:
• X : parts extracted from the component side.
•
: parts mounted on the conductor side.
p
•
®
: Through hole.
•
¢
: internal component.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
B
C
E
These are omitted
C
Q
These are omitted
B
E
w w w
x
a o
y
.
i
– 27 –
http://www.xiaoyu163.com
8
WAVEFORMS
– CD SECTION –
1
1.3Vp-p
500mV/DIV, 500nsec/DIV
IC101 #£ RFO
2
0.5Vp-p
200mV/DIV, 1µsec/DIV
IC101 2 FEI
3
0.2Vp-p
50mV/DIV, 1msec/DIV
IC101 $¶ TEI
4
7.8µsec
2.5Vp-p
IC103 @¶ MDP
5
230µsec
Q
Q
3
7
6
3
5Vp-p
IC103 ^º XPCK
6
135µsec
5Vp-p
IC103 ^™ RFCK
7
135µsec
5Vp-p
IC103 &¢ WFCK
8
2.6Vp-p
16.9344MHz
IC103 *ª XTAI
u 1 6 3
.
http://www.xiaoyu163.com
2
4
9
9
8
– MAIN SECTION (1/5) –
1
4.8Vp-p
8MHz
IC602 @¢ XTAL
– MAIN SECTION (2/5) –
1
8MHz
IC701 0 X2
2
5.2Vp-p
32.768kHz
IC701 !£ XT2
– DISPLAY SECTION –
1
1
5
1
5
0
8
9
2
4
8MHz
IC601 !™ X-OUT
m
c o
– 28 –
2
9
9
5.5Vp-p
9
8
2
9
9
4Vp-p
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