Sony KV-29FV15A Service Manual ▷ View online
— 37 —
KV-29FV15A/34FV15A/38FX250A
(5) Feature ID Map
SERVICE IDO 25
Note: Items 1-266 show adjustment order
KV-29FV15A
KV-34FV15A
KV-34FV15A
ID 0
31
31
31
31
55
63
63
63
175
175
175
175
64
64
64
64
251
251
251
251
181
181
181
181
6
6
6
6
64
64
73
73
ID 1
ID 2
ID 3
ID 4
ID 5
ID 6
ID 7
KV-38FX250A
F
O
X
GROUP
FEATURES
NAME
KV-29FV15A (8964(E))
KV-34FV15A (10238(E))
KV-38FX250A (8984(E))
29inchx120Vac
34inchxAUTO
38inchx120VacxPIP
KV-29FV15A/34FV15A/38FX250A
— 39 —
— 40 —
— 41 —
SECTION 6 DIAGRAMS
6-1 BLOCK DIAGRAM (1/2 )
FOLDOUT 1/2 39-44 a
6/25/99, 8:58 AM
1
KV-29FV15A/34FV15A/38FX250A
— 42 —
— 43 —
— 44 —
6-2 BLOCK DIAGRAM (2/2)
6-4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• All capacitors are in
µ
F unless otherwise noted. pF :
µµ
F 50WV or less are not
indicated except for electrolytics and tantalums.
• All electrolytics are in 50V unless otherwise specified.
• All resistors are in ohms.
KW=1000
Ω
, MW=1000kW
• Indication of resistance, which does not have one for rating electrical power, is
as follows:
Pitch : 5mm
Rating electrical power :
1
/
4
W
•
1
/
4
W in resistance,
1
/
10
W and
1
/
8
W in chip resistance.
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless other-
wise noted.
• The components identified by
in this basic schematic diagram 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.
• When replacing components identified by
, make the necessary adjust-
ments indicated. If results do not meet the specified value, change the compo-
nent identified by
and repeat the adjustment until the specified value is
achieved. (Refer to R530 and R531 adjustment on Page 28.)
• When replacing the part in below table, be sure to perform the related adjust-
ment.
• Readings are taken with a color-bar signal input.
• Readings are taken with a 10MW 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 impossibility.
•
: B+line.
•
v
: B-line.
(Actual measured value may be different).
•
: signal path. (RF)
• Circled numbers are waveform references.
Reference information
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW
NONFLAMMABLE WIREWOUND
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE 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
R530,R531
Part replaced (
) Adjustment(
)
IC355, IC501, D302, D519, D520, D521,C531, C532,
Q301, R356, R359, R361, R387, R529, R530, R531,
R532, R533, R550,T503 .............................A BOARD
IC6003, R6088...........................................GA BOARD
6-3. CIRCUIT BOARDS LOCATION
The symbol
display is on the component side.
The components identified by shading and mark
are
critical for safety. Replace only with part number specified.
The symbol
The symbol
indicates a fast operating fuse. Replace only
with fuse of same rating as marked.
Les composants identifiés per un tramé et une marque
sont
critiques pour la sécurité. Ne les remplacer que par une piéce
portant le numéro spécifié.
Le symbole
portant le numéro spécifié.
Le symbole
indique une fusible a action rapide. Doit etre
remplacee par une fusible de meme yaleur, comme maque.
T
(KV-38FX250A Only)
ALL MODELS
C
A
GA
HB
HX
WA
UY
HA
AK
HZ
FOLDOUT 1/2 39-44 a
6/25/99, 8:58 AM
2
KV-29FV15A/34FV15A/38FX250A
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
—
45
—
—
46
—
—
47
—
—
48
—
A
[ MICON, Y/C/J, TUNER, PIN-MOD, V-DEF, H-DEF ]
1
A
B
C
D
E
2
3
4
5
6
7
8
9
AK
[ AUDIO AMP, TRUSURROUND, 2ND TUNER, S-LINK ]
AK BOARD SCHEMATIC DIAGRAM
NOTE:
Portions of this circuit marked as shown are high
voltage areas. Use care to prevent electric shocks
during inspection or repair.
voltage areas. Use care to prevent electric shocks
during inspection or repair.
AK BOARD WAVEFORMS
1
2
1.9 Vp-p (H)
4.8 Vp-p (H)
AK BOARD LOCATOR LIST
DIODE
PHOTOSENSOR
D101
A - 2
PS1461
B - 4
D103
A - 6
TRANSISTOR
D104
A - 6
Q101
A - 2
D105
B-8
Q105
A - 6
D106
B-8
Q106
A - 4
D107
C-8
Q451
B-8
D108
A-1
Q1461
C-3
D109
B-1
Q1462
C-2
D1461
B-3
Q1463
C-2
D1463
B-2
Q1464
C-2
D1466
B-2
Q1902
D-8
D1467
C - 4
Q1903
D-8
D1468
C - 4
Q1918
D-9
IC
IC1401
D-6
IC1402
B-6
IC1403
E-8
IC1461
D-3
IC1901
B-8
IC1902
C-8
AK BOARD TRANSISTOR
VOLTAGE LIST
VOLTAGE LIST
B
C
E
Q101
5.7
9.4
5.1
Q105
5.1
0.7
4.9
Q106
4.6
9.1
3.9
Q451
8.7
0
9.1
Q1461
0
4.1
GND
Q1462
0
11.5
GND
Q1463
0
0
GND
Q1464
0
0
GND
Q1902
4.9
0.7
0
Q1903
4.9
0.7
0
Q1918
4.9
0.7
0
All voltages are in V
AK BOARD
IC VOLTAGE LIST
IC VOLTAGE LIST
IC1401
16
4.6
pin
volt
17
4.6
1
GND
18
4.6
2
0
19
4.6
3
0
20
4.6
4
4.6
21
9.2
5
4.6
22
4.6
6
4.6
23
4.6
7
4.6
24
4.6
8
4.6
25
4.6
9
4.6
26
4.6
10
4.6
27
4.6
11
4.6
28
3.9
12
4.6
IC1461
13
0.8
1
1.5
14
2.0
2
0
15
9.2
3
NC
16
9.2
4
0
17
4.6
5
1.5
18
4.6
6
6.9
19
2.0
7
9.6
20
0.8
8
0.8
21
4.6
9
34.5
22
4.6
10
0
23
4.6
11
0
24
4.6
12
9.4
25
4.6
IC1901
26
4.6
1
0
27
4.6
2
0
28
4.6
3
NC
29
4.6
4
NC
30
4.6
5
NC
31
2.9
6
NC
32
4.6
7
0.3
IC1402
8
GND
pin
volt
9
0
1
4.6
10
NC
2
4.6
11
9 . 4
3
4.6
12
GND
4
GND
13
GND
5
4.6
14
4 . 5
6
4.6
15
4 . 5
7
4.6
16
9 . 4
8
9.2
IC1902
IC1403
1
5.0
pin
volt
2
3.7
1
4.0
3
5.0
2
4.6
4
0.1
3
4.6
5
GND
4
GND
6
0
5
4.6
7
0
6
NC
8
0
7
4.6
9
0.7
8
GND
10
0.7
9
4.6
11
0.7
10
4.6
12
NC
11
4.6
13
0
12
4.6
14
0.2
13
4.6
15
0.3
14
4.6
16
GND
15
4.6
All voltages are in V
AK BOARD (*) MARK LIST
REF. NO.
LOCATION
KV-34FV15A
KV-38FX250A
KV-29FV15A
CN1465
F-1
#
1-564-507-11
#
Q451
F-2
#
2SB734-34
#
R450
F-2
#
10K
#
#: NOT MOUNTED
SUPPLY
VOLTAGE
OUTPUT
STAGE
SUPPLY
FLYBACK
GENERATOR
FLYBACK
GENERATOR
POWER
AMPLIFIER
THERMAL
PROTECTION
OUTPUT
INVERTING
INPUT
NON-INVER
TING
INPUT
GND
A BOARD: IC 561 STV9379
A BOARD LOCATOR LIST
DIODE
D513
F-8
IC
Q015
D-3
Q364
D-12
D001
A - 5
D515
G - 4
IC001
B-2
Q016
D-2
Q369
D-9
D002
D-2
D516
H-2
IC002
C-2
Q017
D-2
Q370
D-12
D003
A - 5
D518
H-3
IC351
C-9
Q103
B-8
Q501
I-2
D004
C-2
D519
G-9
IC352
D-10
Q104
B-8
Q502
I-9
D011
A - 5
D520
F-2
IC353
D-11
Q301
E-3
Q503
F-3
D012
C-1
D521
F-2
IC354
C-10
Q302
E-5
Q504
G-3
D013
C - 4
D522
G-2
IC355
D-5
Q303
E-7
Q507
F-8
D014
D-3
D523
H-2
IC501
G-2
Q304
E-5
Q511
G-2
D015
C-3
D524
H-2
IC561
G-6
Q305
E-5
Q512
F-3
D016
D - 4
D530
G-8
IC1001
D-8
Q306
D - 4
Q561
G-6
D018
C - 4
D531
G-8
TRANSISTOR
Q307
C-6
Q562
F-5
D019
C-8
D534
G-8
Q001
A - 5
Q310
E - 4
Q1102
A-12
D301
E-3
D535
G-8
Q002
C - 4
Q311
E - 4
Q1103
A-10
D302
E-3
D536
G-8
Q003
H-1
Q314
E-10
Q1301
D-11
D303
D - 4
D561
G-6
Q004
H-1
Q315
E-10
Q1302
D-12
D368
C-7
D1003
E-9
Q005
B-5
Q351
D-10
Q1303
E-12
D384
D-5
D1004
E-9
Q006
H-1
Q352
D-10
Q1352
D-12
D388
D-6
D1101
A - 7
Q007
H-1
Q359
D-12
Q1353
D-12
D501
H-2
D1102
B-11
Q010
D-3
Q361
D-11
Q1354
D-12
D502
I-8
D1103
A-12
Q011
D-3
Q362
D-11
D503
I-8
D1104
A - 7
Q012
D-3
D504
I-7
D1301
D-12
Q013
D-3
D505
H-5
D1302
D-12
Q014
D-3
D506
H-5
D1303
D-11
D507
H-2
D1304
D-11
D510
F-8
D1305
D-12
D511
F-8
D1306
D-12
D512
F-8
A BOARD: IC 355 CXA2131S
FOLDOUT 3 45-48
6/28/99, 9:22 AM
1
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