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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.
• 1 : fusible resistor.
• C : panel designation.
Note:
Note:
The components iden-
tified by mark ! or dot-
ted 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 produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
g : VIDEO/MD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
m
: CHROMA
n : Y
o : VIDEO
J
: CD
c : digital out
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Through hole.
®
• 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.
• Indication of transistor
C
Q
These are omitted
B
C
E
B
E
These are omitted
WAVEFORMS
– VIDEO SECTION –
– CD SECTION –
1
1
1.3Vp-p
IC101 %º RFAC
2
2
2.5V
APPROX 500mVp-p
IC101 $¡ TE
3
3
2.5V
APPROX 200mVp-p
IC101 #ª FE
4
4
2.6Vp-p
7.5µsec
IC101 @∞ MDP
5
6
7.5µsec
7
4.8Vp-p
4.8Vp-p
0.47µsec
IC503 4 (CD-LRCK)
0.15µsec
IC511 8 (OSC IN)
(CD Play mode)
8
4.8Vp-p
4.8Vp-p
45µsec
0.47µsec
IC511 !∞!§!¶!• (CD Stop mode)
IC503 8 (CD-LRCK)
9
5.0Vp-p
4.8Vp-p
12.5µsec
16.7ms
IC503 !º (CD-BCK)
IC514 @¶ (VSY)
0
5.0Vp-p
4.0Vp-p
10MHz
H
IC514 @• (HSY)
IC505 !£ (XOUT)
!¡
3.0Vp-p
3.5Vp-p
10MHz
36nsec
IC502 !∞ (XIN)
IC514 2-8, !º (YUVO-YUV7)
!™
2.0Vp-p
4.8Vp-p
H
IC511 1 (CLK)
J301 4 (YOUT)
27
27
– MAIN (3/4) SECTION –
1
!£
1.8Vp-p
H
J301 3 (COUT)
2
!¢
4.6Vp-p
37µsec
IC509 4 (MCKO)
!∞
4.8Vp-p
– PANEL (1/2) SECTION –
1
59µsec
IC509 @º (384FSO)
!§
4.2Vp-p
30nsec
IC509 @¡ (768FSO)
HCD-VX880AV
5.2Vp-p
32.768kHz
IC501 !¡ XC-OUT
5.5Vp-p
16MHz
IC501 !£ X-OUT
3.4Vp-p
12.5MHz
IC601 &™ X OUT
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