Sony TC-WE305 Service Manual ▷ View online
5
5
TC-WE305
SCHEMATIC DIAGRAM – MAIN SECTION (2/2) –
D704
D703
C702
R703
C705
R704
R707
C704
R702
R701
D706
C701
C710
R710
D712
D711
CN702
D701
D702
CN701
D714
D713
D715
R711
R712
D716
D717
R713
C712
R715
R714
D718
R510
R705
D705
C706
R709
C707
C708
R706
R505
D505
R506
R507
C502
IC502
IC501
R502
R536
RV503
RV504
R520
R519
C504
R501
D510
CNP506
R508
C505
R514
R509
D511
RV501
RV502
R518
R517
CN504
D504
D501
D502
D503
CN505
R504
R503
C501
R535
Q506
Q507
Q505
Q504
Q501
Q508
Q510
Q509
Q703
Q701
Q704
Q702
Q705
Q706
R512
Q503
C503
R526
C711
JW197
JW198
P702
P701
11E52
11E52
1000
25V
2.2k
220
16V
16V
2.2k
100
220
16V
16V
2.2k
2.2k
1N4148M
1000
25V
4.7
50V
2.2k
11E52
11E52
11E52
11E52
1N4148M
1N4148M
1N4148M
1k
1k
UZL-7M2
1N4148M
22k
100
10V
10V
2.2k
2.2k
UZL-6L1
100
1k
UZL-7L1
1
50V
3.9k
1000
10V
470
10V
10V
3.3k
4.7k
1N4148M
33k
15k
10
50V
MC14011BCP
MC14001BCP
4.7k
4.7k
2.2k
2.2k
7.5k
11k
0.47
50V
4.7k
1N4148M
47k
10
50V
1k
22k
1N4148M
2.2k
2.2k
7.5k
11k
1N4148M
1N4148M
1N4148M
1N4148M
1k
47k
22
25V
4.7k
2SA1175
SPEED CONTROL
2SA1175
SPEED CONTROL
BA1L4M
SPEED CONTROL
SWITCH
BA1A4M
SPEED CONTROL
SWITCH
BN1L4M
DUBBING
SWITCH
BN1L4M
LINE MUTE
SWITCH
2SC2785
LINE MUTE
SWITCH
2SC2785
LINE MUTE
SWITCH
2SB1375
+7V REG
+7V REG
2SC2785
B+ DET
SWITCH
SWITCH
2SA1175
B- DET
SWITCH
SWITCH
2SC2785
REG
DRIVE
2SA1175
REG
DRIVE
2SD2012
-7+ REG
-7+ REG
10
BA1L3Z
LINE MUTE
DRIVE
22
25V
47k
330
16V
16V
GND
MUTE
MUTE
-7V
REC SW
SPEED
+7V
REC/PB
REC MUTE
B PB
BIAS
A PB
TAPE SPEED
(HIGH)
TAPE SPEED
(NORMAL)
TAPE SPEED
(HIGH)
TAPE SPEED
(NORMAL)
MOTOR CONTROL
MOTOR CONTROL
MOTOR
CAPSTAN/REEL
MOTOR
M901
CAPSTAN/REEL
M902
US,AUS,E
AEP
AEP
US,AUS,E
DECK A
DECK A
DECK B
DECK B
US,AUS,E
DECK B
DECK A
6
6
TC-WE305
*
R822
D205
D204
R821
D206
D101
D102
D103
D104
D105
D106
D107
D201
D202
R823
D207
D203
S804
S803
S801
S802
D801
D802
D804
IC108
D807
D808
D809
R135
R235
JW501
JW503
JW504
JW506
JW507
JW508
JW509
JW511
R120
R220
D101-107,D201-207
RV107
C134
HIGH
NORM
C234
IC208
JW193
JW502
R813
R812
R815
KH701
KH803
KH801
KH802
D803
JW510
D108
D208
R811
JW505
JW514
JW512
JW513
BOARD
SW
BOARD
METER
BOARD
SW
21
(21)
1-661-076-
21
(21)
1-661-076-
21
(21)
1-661-076-
*
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
T701
POWER TRANSFORMER
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
T701
POWER TRANSFORMER
S702
POWER
C903
CNP1
AC IN
AC IN
CNP1
AC IN
AC IN
120V
240V
t
VOLTAGE SELECTOR
S701
POWER
OFF ON
t
US,AUS
US,AUS,E
E
S703
AEP
1
1
1
1
1
1
16
16
6
2
5
8
8
9
9
10
PEAK LEVEL METER
DUBBING SPEED
HIGH
DUBBING SPEED
NORMAL
DUBBING
SPEED
DECK B
TAPE TYPE
DECK A
TAPE TYPE
RECORD
REC LEVEL
DOLBY NR
ON OFF
t
/
t
t
t
t
-1
-1
-2
-2
-3
-4
D
MAIN
BOARD
D
MAIN
BOARD
E
MAIN
BOARD
A
MAIN
BOARD
B
C
(Page 3 )
(Page 3 )
(Page 3 )
(Page 3 )
MAIN
BOARD
(Page 3 )
MAIN
BOARD
(Page 3 )
2
3
4
5
6
7
8
9
A
1
B
C
D
E
PRINTED WIRING BOARDS –SW, METER Section–
• Semiconductor
Location
Ref. No.
Location
D101
C-4
D102
C-3
D103
C-3
D104
C-3
D105
C-2
D106
C-2
D107
C-1
D108
B-3
D201
C-4
D202
C-3
D203
C-3
D204
C-3
D205
C-2
D206
C-2
D207
C-1
D208
C-4
D801
D-4
D802
E-4
D803
D-3
D804
E-3
D807
D-2
D808
D-2
D809
C-4
IC108
C-2
IC208
C-3
7
7
TC-WE305
SCHEMATIC DIAGRAM –SW, METER Section–
D104
D103
D105
D106
D107
D205
D203
R815
D201
D101
D207
D206
D204
C234
C134
D102
IC108
IC208
KH801
KH802
KH803
R220
RV107(2/2)
RV107(1/2)
R120
S804
R821
R822
R823
R812
R813
D803
S803
S802
S801
D802
R811
D804
D807
D809
D808
D801
D202
D208
R135
R235
D108
S703
JW193
S702
C903
SEL4414E-C
SEL4414E-C
SEL4414E-C
SEL4214S-C
SEL4214S-C
SEL4414E-C
SEL4414E-C
180
SEL4414E-C
SEL4414E-C
SEL4214S-C
SEL4214S-C
SEL4414E-C
22
50V
22
50V
SEL4414E-C
LB1408
LB1408
27k
20k
20k
27k
12k
3.9k
2k
470
390
1N4148M
1N4148M
470
1N4148M
SEL1210S-C
SEL1210S-C
SEL1210S-C
1N4148M
SEL4414E-C
1N4148M
3.3k
3.3k
1N4148M
4700p
400V
D101-107 D201-207
PEAK LEVEL METER
DRIVE
LEVEL METER
DRIVE
LEVEL METER
DUBBING SPEED
HIGH
TAPE TYPE
NORMAL
REC LEVEL
DUBBING SPEED
DECK B
TAPE TYPE
DECK A
/
ON
OFF
HIGH
NORM
DUBBING SPEED
HIGH
-1
-2
-3
-4
POWER
TRANSFORMER
T701
BUILT IN TRANSFORMER
NOT REPLACEABLE:
*
*
POWER
TRANSFORMER
T701
BUILT IN TRANSFORMER
NOT REPLACEABLE:
*
*
VOLTAGE SELECTOR
120V
240V
ON
OFF
POWER
AC IN
CNP1
AC IN
CNP1
AEP
US,AUS,E
US,AUS
E
8
8
TC-WE305
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F 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 specifed.
•
%
: indicates tolerance.
•
f
: internal component.
•
1
: fusible resistor.
•
C
: panel designation.
Note:
The components identified by mark
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages are dc with respect to ground under no-signal conditions.
no mark : PLAY
(
(
) : REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler
ances.
ances.
•
Circled numbers refer to waveforms.
•
Signal path.
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
• Abbreviation
AUS
: Australian
Note on Printed Wiring Boards:
Note:
Note:
• X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
r
Waveforms
• Abbreviation
AUS
: Australian
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