Sony HCD-C450 Service Manual page 31

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: Note:
The components identified by Les composants identifiés par
mark ! or dotted line with mark une marque ! sont critiques
! are critical for safety. pour la sécurité.
Replace only with part number Ne les remplacer que par une
specified. pièce portant le numéro spécifié.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : STOP
• Circled numbers refer to waveforms.
• Signal path.
F : FM
J : CD
T E
L 1 3 9 4 2 2 9 6 5 1 3
c : DVD
g : VIDEO
G : Y
d : CHROMA
r : B-Y
q : R-Y
• Abbreviation
AUS : Australian model
CND : Canadian model
E12 : 220V-240V AC in E model
E32 : 110V-240V AC (without VS) in E model
EA : Saudi Arabia model
MX : Mexican model
SP : Singapore model
w w w
.
http://www.xiaoyu163.com
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• a : 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
(Conductor B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component A) the parts face are indicated.
• Indication of transistor
C
Q
These are omitted
B C E
B E
These are omitted
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
• Waveforms
8 9
– RF-240 Board – – DVD Board –
7
1
1.5Vp-p
500mV/DIV 100ns/DIV
6.25ns (16MHz)
IC001 tl (SIGO) DVD PLAY IC901 ek (X2)
8
2
1.5Vp-p
500mV/DIV 400ns/DIV
81.4ns (12.288MHz)
IC001 tl (SIGO) CD PLAY IC606 w; (XMCK)
3 9
1.8Vp-p
500mV/DIV 40ms/DIV
74ns (13.5MHz)
IC001 ra (TE) DVD PLAY IC607 qs (MCLK2)
4 0
1.8Vp-p
500mV/DIV 200ms/DIV
37ns (27MHz)
IC001 ra (TE) CD PLAY IC102 7
Q Q
3 7 6 3 1 5 1
5 qa
190mVp-p
100mV/DIV 40ms/DIV
60.6ns (16.5MHz)
IC103 td
IC001 rs (FE) DVD PLAY
6
840mVp-p
500mV/DIV 40ms/DIV
IC001 rs (FE) CD PLAY
c o
.
31 31
2 4 2
9 8
– AMP Board – – COMPONENT Board –
qj
qs
3.5Vp-p
7.2 Vp-p
20.3ns (49.152MHz)
IC300 4
IC703 9, q; Test Mode (Video)
qk
qd
5 Vp-p
3.8Vp-p
13 µ s
IC305 wf (OUTL1+) IC703 qs, qd Test Mode (Video)
ql
– I/O BOARD –
3.5Vp-p
qf
2.5Vp-p IC703 qf, qg Test Mode (Video)
H
IC701 qf, qg Test Mode (Video)
2Vp-p
qg
2Vp-p
(XTI)
5 0 8 9 2 4 9 8 2
H
IC701 9, 0 Test Mode (Video)
3.4 Vp-p
qh
0.9Vp-p
(X1)
H
Q700 E Test Mode (Video)
m
HCD-C450
9 9
1.5 Vp-p
H
H
1.5 Vp-p
1.5 Vp-p
H
9 9