Sony TA-FB930R Service Manual ▷ View online
5
5
SECTION 3
DIAGRAMS
3-1. 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.)
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.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : POWER ON
no mark : POWER ON
• 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.
• Signal path.
F
: TUNER
• Abbreviation
G
: German model.
EE
: East European model.
AUS
: Australian model.
SP
: Singapore model.
MY
: Malaysia model.
WAVEFORM
1
IC902
1
XOUT
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
These are omitted
E
B
4MHz
3.8Vp-p
PANEL board
TONE board
INPUT board
MAIN board
SP-TM board
PHONO board
PS board
OUTLET board
VOL board
SIRCS board
SIRCS SUB board
HP board
S-D LED board
6
6
TA-FB930R
3-2. SCHEMATIC DIAGRAM – INPUT SECTION –
(Page 8)
(Page 10)
(Page 10)
7
7
TA-FB930R
3-3. PRINTED WIRING BOARD – INPUT SECTION –
• See page 5 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
D100
A-8
D101
A-10
D102
B-10
D103
B-10
D104
C-10
D105
D-10
D106
D-10
D107
B-8
D108
B-6
D140
B-4
D240
B-4
Q100
B-7
Q101
B-7
Q102
B-7
Q103
B-7
Q104
B-6
Q105
B-6
Q140
C-4
Q240
B-4
(Page 11)
(Page 11)
(Page 9)
8
8
TA-FB930R
3-4. SCHEMATIC DIAGRAM – MAIN SECTION –
• See page 14 for IC Block Diagrams.
(Page 10)
(Page 10)
(Page
12)
(Page
10)
(Page 6)
(Page 12)
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