Sony HCD-EP313 - Personal Component System, Руководство по обслуживанию

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HCD-EP313
SECTION 6
DIAGRAMS
• Circuit Boards Location
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 /
4
W or less unless otherwise
specified.
• f : internal component.
• 2 : nonflammable resistor.
• 1 : fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
f
: internal component.
• : Pattern from the side which enables seeing.
•
A
: B+ Line.
• B : B– Line.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
• Abbreviation
CND : Canadian model
• Signal path.
F : TUNER (FM)
J
: CD
d
: MD
E : PB (TAPE)
a : REC (TAPE)
• Waveforms
– CD Board –
1.1Vp-p
1
IC103 qg (RFAC)
(CD Play Mode)
2
IC101
el
(FE)
(CD Play Mode)
200mV/DIV, 1
µ
s /DIV
50mV/DIV, 200
µ
s /DIV
100mV/DIV, 200
µ
s /DIV
1V/DIV, 20ns/DIV
200mVp-p
250mVp-p
3
IC101
ra
(TE)
(CD Play Mode)
4
IC101 yj (XTAO)
5.4Vp-p
59ns
6
IC301
7
32kHz OUT
1V/DIV, 10
µ
s /DIV
5V/DIV, 10 ms/DIV
5
IC301 0 8.6MHz OUT
10Vp-p
20
m
s
2.4Vp-p
30
µ
s
7
Q453,Q454 collector
(Rec mode)
5V/DIV, 5
µ
s /DIV
10Vp-p
10
µ
s
– CONTROL Board – – MAIN Board –
Note:
The components identified by
mark
0 or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque
0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C E
MAIN board
CONTROL board
BACK LIGHT board
TRANSFORMER board
CD board