Sony HCD-DR8AV Service Manual page 27

Compact disc deck receiver
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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.
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark ! or dotted
une marque ! sont critiques
pour la sécurité.
line with mark ! are criti-
Ne les remplacer que par une
cal for safety.
Replace only with part
piéce portant le numéro
spécifié.
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)
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
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.)
• Indication of transistor
B
C
E
These are omitted
C
Q
These are omitted
B
E
All manuals and user guides at all-guides.com
— 35 —
Waveforms
– BD SECTION –
1
3.1Vp-p
16.9MHz
IC101 ^¶ XTAI
2
1.2Vp-p
(PLAY)
IC101 %¡ RF AC
3
2.5V
APPROX 500mVp-p (PLAY)
IC101 $¡ TE
4
2.5V
APPROX 200m Vp-p (PLAY)
IC101 #ª FE
5
2.4Vp-p
7.5µsec
IC101 @§ MDP
HCD-DR8AV/W900A
– MAIN (2/5) Section –
1
5.5Vp-p
16MHz
IC501 !£ X-OUT
2
5.2Vp-p
32.768kHz
IC501 !¡ XC-OUT
– FL Section –
1
3.4Vp-p
12.5MHz
IC601 &™ X-OUT
— 36 —

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