Read Sony HCD-DR8AV / HCD-W900AV Service Manual online
HCD-DR8AV/W900AV
— 35 —
— 36 —
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
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
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
®
: Through hole.
•
¢
: internal component.
• 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.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
g
: VIDEO/MD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
I
: PHONO
• Abbreviation
CND
: Canadian model
AUS
: Australian model
EA
: Saudi Arabia model
MX
: Mexican model
SP
: Singapore model
AR
: Argentina model
IC101
#ª
FE
1
2
3
4
5
Waveforms
– BD SECTION –
– BD SECTION –
IC101
^¶
XTAI
IC101
%¡
RF AC
IC101
$¡
TE
IC101
@§
MDP
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
1
IC601
&™
X-OUT
– FL Section –
1
2
IC501
!¡
XC-OUT
IC501
!£
X-OUT
– MAIN (2/5) Section –
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 500mVp-p (PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
7.5
µ
sec
2.4Vp-p
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
12.5MHz
3.4Vp-p
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
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