CMT-EX1, HCD-EX1 - Sony Audio Service Manual (repair manual). Page 15

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HCD-EX1
15
15
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
IC303 
 FE
1
2
3
4
5
WAVEFORMS
–  MAIN (1/3) SECTION –
IC304 
6
 XTO
IC303 
 RF AC
IC303 
 TE
IC303 
@∞
 MDP
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 500mVp-p (PLAY)
7.5
µ
sec
2.4Vp-p
2.5V
APPROX 200m Vp-p (PLAY)
6
7
IC701 
 XT2
IC701 
0
 X2
–  MAIN (3/3) SECTION –
5MHz
5.5Vp-p
32.768kHz
5Vp-p
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 
 and 
1
/
4
 
W or less unless otherwise
specified.
¢
: internal component.
2
: nonflammable resistor.
5
: fusible resistor.
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
®
: Through hole.
• 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 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.
J
: CD
c
: digital out
• Abbreviation
CND : Canadian model.
Note:
The components identi-
fied by mark 
!
 or dotted
line with mark 
!
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
!
 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
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