DOWNLOAD Sony TC-WE675 Service Manual ↓ Size: 5.18 MB | Pages: 47 in PDF or view online for FREE

Model
TC-WE675
Pages
47
Size
5.18 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
tc-we675.pdf
Date
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13
13
TC-WE675
WAVEFORMS
– 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.)
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.
•
%
: 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
(
) : 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.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E
: PB
a
: REC
• Abbreviation
CND : Canadian model.
AUS
: Australian model.
SP
: Singapore model.
• Indication of transistor
1
IC801 
el
 EXTAL
Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal 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
piéce portant le numéro
spécifié.
4.4Vp-p
10MHz
C
These are omitted
E
B
14
14
TC-WE675
6-2. PRINTED WIRING BOARD – MAIN SECTION –
• See page 12 for Circuit Boards Location.
(Page 23)
(Page 19)
(Page 19)
(Page 23)
(Page 23)
(Page 21)
(Page 23)
(Page 25)
(SUPPLEMENT-1: Page 4)
NEW TYPE
FORMER TYPE
(Page 23)
Ver 1.3  2002.09
15
15
TC-WE675
6-3. SCHEMATIC DIAGRAM – MAIN (1/4) SECTION –
D306
F-10
D307
F-10
D318
F-10
D351
F-11
D451
C-1
D521
E-9
D522
E-9
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
IC331
G-13
IC421
A-2
IC431
F-2
IC501
D-3
IC502
A-6
IC504
F-7
IC561
D-9
IC701
A-8
IC801
D-7
IC802
E-6
IC803
G-9
IC804
G-8
IC805
G-4
IC806
G-3
Q101
B-3
Q102
A-5
Q103
F-7
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Q104
C-5
Q201
C-2
Q202
A-4
Q203
F-7
Q204
E-1
Q302
H-7
Q303
H-7
Q306
F-10
Q307
G-10
Q308
F-10
Q311
H-8
Q314
H-8
Q316
G-10
Q317
G-10
Q318
G-10
Q341
D-13
Q342
D-13
Q343
D-13
Q351
G-11
Q371
C-10
Q373
C-10
Q402
G-6
Q403
G-6
Q411
G-5
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
Q502
E-9
Q503
E-9
Q505
G-11
Q506
F-3
Q601
A-5
Q701
A-8
Q702
A-7
Q703
A-9
Q704
A-10
Q707
C-10
Q708
C-11
Q801
F-6
Ver 1.3  2002.09
(Page 22)
(Page
19)
(Page 18)
(Page 17)
(Page 16)
(Page 16)
(Page 18)
(Page 17)
(Page 17)
(Page 17)
The components identified by mark 0  or dotted line
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.
• Signal Path
d : PB
G : REC
16
16
TC-WE675
The components identified by mark 0  or dotted line
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.
6-4. SCHEMATIC DIAGRAM – MAIN (2/4) SECTION –
(Page 18)
(Page 18)
(Page 17)
(Page 22)
(Page
19)
(Page 18)
(Page 18)
(Page 17)
(Page 17)
(Page 15)
(Page 15)
Ver 1.3  2002.09
• Signal Path
d : PB
G : REC
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