Sony KV-29FA240 Service Manual ▷ View online
KV-29FA240
KV-29FA240
30
4-1. CIRCUIT BOARDS LOCATION
SECTION 4: DIAGRAMS
4-2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM INFORMATION
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less
are not indicated except for electrolytics and tantalums.
are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. k=1000, M=1000k
Indication of resistance, which does not have one for rating electrical
power, is as follows: Pitch : 5mm Rating electrical power :
power, is as follows: Pitch : 5mm Rating electrical power :
1
/
4
W in resistance,
1
/
10
W and
1
/
8
W in chip resistance.
: nonfl ammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibillity.
REFERENCE INFORMATION
RESISTOR
: RN
: RN
METAL FILM
: RC
SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW
: FUSE NONFLAMMABLE FUSIBLE
: RW
NONFLAMMABLE WIREWOUND
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: ADJUSTMENT
RESISTOR
COIL
: LF-8L MICRO INDUCTOR
: LF-8L MICRO INDUCTOR
CAPACITOR
: TA
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
The components identifi ed by shading and
!
symbol are critical for
safety. Replace only with part number specifi ed.
The symbol
indicates a fast operating fuse and is displayed on
the component side of the board. Replace only with fuse of the same
rating as marked.
rating as marked.
: B+line.
: B-line.
(Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
A Board
CV Board
K Board
J Board
H2 Board
KV-29FA240
KV-29FA240
31
4-3. BLOCK DIAGRAM
F
I
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W
A
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KV-29FA240
KV-29FA240
33
1
|
2 |
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
K
—
L
—
M
—
N
—
O
—
P
A BOARD SCHEMATIC DIAGRAM (2 OF 6)
MON-MUTE-AUDIO
1/10W
RN-CP
R206
100
9V
2SA1235TP-1EF
Q202
C239
500V
B
470p
35V
C244
1000
PWR-OFF-MUTE
CHIP
R220
0
MA111-TX
D204
1/10W
RN-CP
R242
2 . 2 k
PS201
5A
LSR-AUDIO
MOMUTE-AUDIO
KRC102S
Q206
FSF05A20
D222
C243
35V
1000
MA111-TX
D202
R237
1/10W
RN-CP
100
AUDIO-MUTE
AUDIO-1
FB201
1.1uH
MA111-TX
D205
MA111-TX
D212
25V
C219
1000
AUDIO-3
1/4W
FPRD
1
R2646
R238
1/10W
RN-CP
100
MA111-TX
D203
W074
1/10W
RN-CP
R221
100
AUDIO-STDBY
MA111-TX
D214
1/4W
FPRD
R2647
10k
1/10W
RN-CP
R241
2 . 2 k
LSL-AUDIO
35V
C246
1000
5
JW2104
FB202
1.1uH
FSF05A20
D223
C240
500V
B
470p
PS202
5A
C245
35V
1000
15
JW2105
AUDIO-2
1
2
3
3P
CN2103
SR
GND
SL
1
2
3
4
4P
CN2104
A-MUTE
GND
A-STBY
4V
4V_AUDIO_MUTE
1
2
3
4
5
6
7
8
8P
CN2102
-
-
CENTER
+
CENTER
+
CENTER
+
CENTER
+
+
+
1/4W
FPRD
R2645
10k
5
JW2108
AUDIO
3 . 5
A 2/6
0 . 1
2 . 6
1 . 7
SW
AUDIO-STBY
3 . 5
<BX1L>A-P2
A-1201-450-A
TO K BOARD
CN8206
TO K BOARD
CN8210
TO K BOARD
CN8108
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