HCD-VX880AV
27
27
IC514
@¶
(VSY)
IC503
4
(CD-LRCK)
(CD Play mode)
IC511
1
(CLK)
IC514
2
-
8
,
!º
(YUVO-YUV7)
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.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
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.)
•
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 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
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
IC101
@∞
MDP
1
2
3
4
WAVEFORMS
– CD SECTION –
IC101
%º
RFAC
IC101
$¡
TE
IC101
#ª
FE
• Indication of transistor
1.3Vp-p
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.
APPROX 500mVp-p
2.5V
APPROX 200mVp-p
2.5V
2.6Vp-p
7.5
µ
sec
– PANEL (1/2) SECTION –
1
2
IC501
!¡
XC-OUT
IC501
!£
X-OUT
– MAIN (3/4) SECTION –
IC601
&™
X OUT
1
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
12.5MHz
3.4Vp-p
1
2
3
IC503
8
(CD-LRCK)
IC503
!º
(CD-BCK)
4
5
6
7
8
9
IC511
!∞!§!¶!•
(CD Stop mode)
IC511
8
(OSC IN)
0
!¡
IC505
!£
(XOUT)
IC502
!∞
(XIN)
IC514
@•
(HSY)
– VIDEO SECTION –
4.8Vp-p
0.47
µ
sec
!™
J301
4
(YOUT)
J301
3
(COUT)
!£
!¢
!∞
!§
IC509
4
(MCKO)
IC509
@º
(384FSO)
IC509
@¡
(768FSO)
4.8Vp-p
0.47
µ
sec
4.8Vp-p
12.5
µ
sec
4.0Vp-p
10MHz
3.0Vp-p
10MHz
7.5
µ
sec
4.8Vp-p
0.15
µ
sec
4.8Vp-p
4.8Vp-p
45
µ
sec
5.0Vp-p
16.7ms
5.0Vp-p
H
3.5Vp-p
36nsec
2.0Vp-p
H
H
1.8Vp-p
4.6Vp-p
37
µ
sec
4.8Vp-p
59
µ
sec
4.2Vp-p
30nsec
Note:
The components iden-
tified by mark
!
or dot-
ted line with mark
!
are critical for safety.
Replace only with part
number specified.
Note:
C
These are omitted
E
B
Q
C
These are omitted
E
B
