Sony TC-WE475 Service Manual ▷ View online
13
13
TC-WE475
WAVEFORMS
– MAIN SECTION (3/4) –
– MAIN SECTION (3/4) –
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
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
• 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
5
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Transistor of “B” and “C” indication is omitted.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : STOP
(
no mark : STOP
(
) : REC
<
> : PB
∗
: Can not be measured.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
d
: PB
G
: REC (DECK B)
• Abbreviation
CND : Canadian model.
AUS
AUS
: Australian model.
SP
: Singapore model.
• Indication of transistor
C
These are omitted
E
B
1
IC801
el
EXTAL
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
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
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
4.4Vp-p
10MHz
14
14
TC-WE475
6-2. PRINTED WIRING BOARD – MAIN SECTION –
• See page 12 for Circuit Boards Location.
D306
G-10
D307
G-10
D318
G-10
D451
C-2
D601
A-6
D701
B-10
D702
B-10
D703
A-10
D704
A-10
D705
A-10
D706
A-10
D707
B-10
D708
A-7
D709
A-8
D710
B-8
D711
A-8
D712
A-10
D713
B-11
D714
C-10
D715
C-10
D716
B-11
D801
F-6
IC321
D-12
IC421
A-2
IC431
F-2
IC501
D-3
IC502
A-6
IC561
D-9
IC701
A-8
IC801
D-7
IC802
E-6
IC806
G-3
Q101
B-3
Q102
A-5
Q104
C-5
Q201
C-2
Q202
A-4
Q204
E-1
Q302
H-7
Q303
H-7
Q306
G-10
Q307
G-10
Q308
G-10
Q311
H-8
Q312
H-8
Q314
H-8
Q316
G-10
Q317
G-10
Q318
G-10
Q371
C-10
Q373
C-10
Q402
G-6
Q403
G-6
Q411
G-5
Q412
G-6
Q414
G-5
Q417
F-5
Q441
G-2
Q442
H-2
Q443
H-2
Q451
C-1
Q471
C-8
Q473
C-8
Q501
A-5
Q506
F-3
Q601
A-5
Q701
A-8
Q702
A-8
Q703
A-9
Q704
A-10
Q707
C-10
Q708
C-11
Q801
F-6
• Semiconductor
Location
Ref. No.
Location
(Page23)
(Page19)
(Page19)
(Page23)
(Page23)
(Page23)
(Page21)
(Page25)
FORMER TYPE
(SUPPLEMENT-1: Page 4)
NEW TYPE
(Page23)
Ver1.3 2002.09
15
15
TC-WE475
6-3. SCHEMATIC DIAGRAM – MAIN (1/4) SECTION –
(Page 22)
(Page 19)
(Page 17)
(Page 17)
(Page 16)
16
16
TC-WE475
6-4. SCHEMATIC DIAGRAM – MAIN (2/4) SECTION –
• See page 14 for Printed Wiring Board.
(Page 18)
(Page 18)
(Page 18)
(Page 19)
(Page 22)
(Page 15)
(Page 17)
(Page 17)
(Page 17)
Ver1.3 2002.09
The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par une piéce portant le numéro
spécifié.
critiques pour la sécurité.
Ne les remplacer que par une piéce portant le numéro
spécifié.
• Signal Path
d : PB
G : REC
d : PB
G : REC
(DECK B)
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