Sony CDX-GT630UI - Cd Receiver Mp3/wma/aac Player, Руководство по обслуживанию

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CDX-GT63UIW/GT630UI/GT637UI
CDX-GT63UIW/GT630UI/GT637UI
19 19
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• no mark : FM
( ) : AM or MW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD
F
: FM
f
: AM or MW
L
: AUX
c
: USB
g
: BUS AUDIO
• Abbreviation
CND :
Canadian model
RU : Russian model
IT : Italian model
• ( ) : Page of Service Manual.
(( )) : Page of Supplement-1.
For schematic diagrams:
Note:
• All capacitors are in
μ
F unless otherwise noted. (p: pF)
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
specifi ed.
•
f
: internal component.
•
C
: panel designation.
For Printed Wiring Boards:
Note:
•
X
: Parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A) Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note:
The components identi-
fi ed by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
• Abbreviation
CND :
Canadian model
RU : Russian model
IT : Italian model
• ( ) : Page of Service Manual.
(( )) : Page of Supplement-1.
• Waveforms
– MAIN Board –
0.04 Vp-p
4 MHz
1.2 Vp-p
32.768 kHz
0.05 V/DIV, 50 nsec/DIV
0.5 V/DIV, 20 μ sec/DIV
IC001
RI
(XTAL1)
IC501
RE
(XOUT)
1.5 Vp-p
7.92 MHz
0.5 V/DIV, 50 nsec/DIV
IC501
PE
(OSCOUT)
0.9 Vp-p
8.66 MHz
0.5 V/DIV, 50 nsec/DIV
IC101 (XT1)
(Except US,CND model)
Ver. 1.1