Read Sony ICF-CD830 / ICF-CD830L Service Manual online
10
10
ICF-CD830/CD830L
3-6. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) –
Note on Schematic Diagrams:
• All capacitors are in
• 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.
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Refer to page 14 for IC Block Diagrams. • Refer to page 15 for IC Pin Function Description.
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.
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
J
: CD
• Abbreviation
AUS
: Australian model.
CND : Canadian model.
IT
IT
: Italian model.
SP
: Singapore model.
1.0 V/DIV, 100
n
s/DIV
1.0 V/DIV, 10 ns/DIV
1
IC401 ug (X2)
(CD PLAYMODE)
3
IC501 rk (XOUT)
(CD PLAYMODE)
3.7 Vp-p
239 ns
3.9 Vp-p
29.5 ns
1.0 V/DIV, 10
µ
s/DIV
2
IC401 ua (XT2)
3.4 Vp-p
30.6
µs
C556 0.022
R557 2.2k
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