Sony KV-25FV12B Service Manual ▷ View online
KV-25FV12B
6-3. PLACA DE CIRCUITO IMPRESSO E
DIAGRAMA ESQUEMÁTICO
• All capacitors are in
µ
F unless otherwise noted.
pF:
µµ
F 50 WV or less are not indicated except for
electrolytic and tantalums.
• All electrolytics are 50V unless otherwise specified.
• Indication of resistance, which does not have one for
rating electrical power, is as follows:
Pitch: 5mm
Rating electrical power 1/4W (CHIP: 1/10W)
• All resistors are in ohms.
K
Ω
= 1000
Ω
M
Ω
= 1000K
Ω
•
: nonflammable 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.
• The components identified by
in this manual have
been carefully factory-selected for each set in order to
satisfy regulations regarding X-ray radiation. Should
replacement be required, replace only with the value
originally used.
satisfy regulations regarding X-ray radiation. Should
replacement be required, replace only with the value
originally used.
• When replacing components identified by
, make the
necessary adjustments indicated. If results do not meet
the specified value, change the component identified
by
the specified value, change the component identified
by
and repeat the adjustment until the specified value
is achieved (refer to Safety Related Adjustments on
page XX).
page XX).
• When replacing parts shown in the table below, be sure
to perform the related adjustments.
6.2 LOCALIZAÇÃO DAS PLACAS
A Board
CB Board
K Board
MB Board
VB Board
Part Replaced ( )
Adjustment ( )
HV HOLD-DOWN
(R564)
(R564)
B+ VOLTAGE
CONFIRMATION
CONFIRMATION
DY, T505, CRT, IC501, C507,C520,
C505, C509, C515, T504,T503,
C551, L510, C546, C537, C547,
D517, D518, D519, R560,R561,
R562, R563, R565, R566, R567,
R525.....................................A Board
C505, C509, C515, T504,T503,
C551, L510, C546, C537, C547,
D517, D518, D519, R560,R561,
R562, R563, R565, R566, R567,
R525.....................................A Board
IC1301...............................MB Board
IC601, PH601...................A Board
• All voltages are in Volts
• Voltage is DC with respect to ground unless otherwise
noted.
• Readings are taken with a 10MW digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal
production tolerance.
• Circled numbers are waveform references.
• *
: cannot be measured
•
: B + Line
• -----
: B - Line
•
: Signal path
Reference Information
RESISTOR
:
RN
METAL FILM
:
RC
SOLID
:
FPRD
NON FLAMMABLE CARBON
:
FUSE
NON FLAMMABLE FUSIBLE
:
RW
NON FLAMMABLE
WIREWOUND
:
RS
NON FLAMMABLE METAL
OXIDE
:
RB
NON FLAMMABLE CEMENT
:
ADJUSTMENT RESISTOR
COIL
:
LF-8L
MICRO INDUCTOR
CAPACITOR
:
TA
TANTALUM
:
PS
STYROL
:
PP
POLYPROPYLENE
:
PT
MYLAR
:
MPS
METALIZED POLYESTER
:
MPP
METALIZED POLYPROPYLENE
:
ALB
BIPOLAR
:
ALT
HIGH TEMPERATURE
:
ALR
HIGH RIPPLE
The components identified by shading and
mark
are critical for safety. Replace only with the part
number specified. The symbol
number specified. The symbol
(displayed on
component side of the circuit board) indicates fast
operating fuse. Replace only with fuse of the same
rating as marked.
operating fuse. Replace only with fuse of the same
rating as marked.
Note:
Les composants identifiés per un tramé et une
marque
marque
sont critiques pour la sécurité. Ne les
remplacer que par une piéce portant le numéro
spécifié. Le symbole
spécifié. Le symbole
indique une fusible a
action rapide. Doit etre remplacee par une fusible de
meme yaleur, comme marque.
meme yaleur, comme marque.
HZ Board
A BOARD: IC502 TDA8172
TDA8580Q/N1
VP1
3
IN 1
7
VP2
15
IN 2
8
+
-
+
-
60
k
60
k
V/l
V/l
+
-
OA
+
-
OA
OUT 1 +
OUT 2 -
1
4
45 k
45 k
Vpx
30 k
BUFFER
IN 4
IN 5
12
+
-
60
k
60
k
V/l
+
-
OA
+
-
OA
OUT 3 -
OUT 4 +
14
17
45 k
45 k
11
BUFFER
BUFFER
45
k
45
k
Vpx
+
-
V/l
MUTE
13
STANDBY
5
DIAG
6
DIAGNOSTIC
INTERFACE
IN 3
10
PGND1
2
PGND2
16
9
DIAGRAMA EM BLOCOS DO IC DA PLACA A
A BOARD: IC402 TDA8580Q/N1
R438
R522
R541
R450
R445
C625
L601
C402
R451
R446
R439
C454
C628
R566
C611
S2005
S2001
S2002
R609
T604
R614
VDR601
T602
R617
TH601
C640
S2006
R2005
C633
C605
R2003
S2007
S2008
R2007
R653
R655
C608
RY602
R236
R235
R239
R238
R237
C216
C210
R651
R663
R661
R508
R634
R635
R442
R443
R444
R114
R115
R106
R204
R102
L101
L103
R105
R213
J201
C205
L102
R211
R215
C448
R436
R454
C213
R241
R240
R424
R527
R525
R514
R567
R225
R529
C530
C546
R563
R218
R227
C542
C541
C518
R231
R232
R557
C552
R543
C532
R537
R540
C543
C519
R535
L507
R546
R534
R545
C551
L510
R533
R524
R515
R516
C503
C536
C504
C513
R507
T503
T502
C527
R659
C629
L602
R447
D507
C659
R402
FB610
R643
C644
C646
R644
C652
FB603
R647
RY601
THP601
R623
C631
D603
C613
R618
C614
C630
R627
FB601
C617
FB609
R632
C524
R539
R518
FB502
R505
R506
L501
C606
T601
CN602
F601
Q605
Q606
Q607
CN604
CN601
CN603
CN2001
CN503
CN402
Q602
Q609
Q604
Q603
C627
Q410
Q507
CN2006
Q101
CN2007
CN2002
CN2008
CN2005
CN2009
CN407
IC405
IC406
IC502
CN502
Q411
CN511
CN506
CN515
Q501
IC601
C403
JR2003
JR503
JR2001
R657
C603
C607
Q505
C102
C602
C619
C654
C699
IC501
L502
R532
CN2004
JR002
D233
D232
D520
R561
D234
D235
D203
D202
D209
R206
CN406
C615
R565
R558
R559
TH501
R633
R511
R503
C554
C525
C511
R2015
S2003
D2002
S2004
D2001
D400
CN408
D212
D2005
D604
D606
D609
FB602
C661
JR603
JR604
D616
D521
R502
R547
R504
C505
D506
CN501
R568
D511
D514
D517
D518
R226
D236
R2051
D208
D205
D206
IC401
IC604
PH601
D510
R404
JR409
R407
D627
D624
C211
IC402
R490
D620
C649
D611
R641
D210
R403
Q401
Q201
Q503
D631
Q206
Q205
Q502
R553
C555
C515
C509
C624
IC602
R2020
R804
R803
R802
R801
R800
R531
R573
R423
C550
C496
R495
D516
R554
R555
T505
CN504
JR501
L505
T504
L509
R660
D605
R601
C547
C444
1
2
6
7
B
E
1
7
B
E
1
9
10
18
6.3A
1
11
1
6
1
4
1
5
1
5
1
3
1
10
1
10
1
9
1
9
1
5
G
1
9
1
3
1
1
4
B
E
RISK OF FIRE
S
B
E
25
27
23
17
1
6
E
135V
B
E
5
4
B
E
+
-
1
2
1
4
5
8
1
1
4
5
8
I
O
C
B
2
6
4
AC IN
AC IN
RGO
RBK
LBK
LGO
LGO
GND
1
TO MA/MB BOARD
LED-TIMER
POWER-SW
POWER-SW
MENU
IR
KEY
V2
C2
GND
STBY-5V
Y2
GND
11
GND
L2
LED-MAIN
L2
LED-MAIN
RBK
RGO
LBK
LGO
H DY +
H DY -
V DY +
V DY -
H DY +
H DY -
1
2
3
4
5
6
B
C
13
15
21
7
GND
6
1
2
3
20
18
1
6
D213
4
GND
H-OUT
DET-OUT 1
7.5V STBY
9V SET
SCL
SDAT
5V SET
30V
AGC
H.PROT
HEATER
-13V
200V
H.PULSE
H.DRIVE
+B
AS MARKED
REPLACE FUSE
5
JUMPER-ID
T6.3AL
8
FBT
1-677-295-31
1
6
31
11
15
21
1
2
3
4
[POWER SUPPLY, DEFLECTION, TUNER/IF, AUDIO, MTS]
A
B
C
D
E
F
G
H
I
5
6
7
8
9
10
11
12
D230
D-11
D506
E-8
D517
F-11
D606
B-3
D615
F-5
D625
G-2
Q506
A-6
Q608
E-2
D204
C-10
D231
D-11
D507
E-8
D518
F-11
D607
B-4
D616
F-6
D626
G-2
IC402
D-9
Q101
B-9
Q507
A-6
Q609
A-4
D205
A-11
D400
E-1
D508
E-10
D519
E-10
D608
B-4
D617
G-2
D627
H-2
IC501
D-9
Q410
B-7
Q601
B-3
D206
A-11
D401
E-8
D509
H-5
D520
F-12
D609
D-4
D618
G-2
D628
G-2
IC502
F-10
Q411
D-8
Q602
A-3
D208
B-11
D501
H-8
D510
E-10
D601
D-2
D610
C-4
D619
D-2
D2001
E-2
IC601
B-5
Q501
H-6
Q603
C-6
D209
B-11
D502
G-9
D511
G-10
D602
E-2
D611
C-6
D620
E-7
D2002
F-1
IC602
C-7
Q502
H-7
Q604
A-5
D210
B-11
D503
G-9
D513
F-10
D603
B-3
D612
C-2
D622
F-3
D2003
B-1
IC603
E-7
Q503
D-8
Q605
G-3
D212
B-11
D504
H-9
D514
F-11
D604
A-3
D613
D-6
D623
F-3
D2004
A-3
IC604
C-8
Q504
E-9
Q606
G-3
D213
B-2
D505
G-7
D516
G-12
D605
D-4
D614
D-6
D624
H-2
D2005
A-2
IC2001
F-1
Q505
G-11
Q607
D-2
IC
A BOARD LOCATOR LIST
DIODE
TRANSISTOR
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