DOWNLOAD Sony KV-28WF3A Service Manual ↓ Size: 13.69 MB | Pages: 73 in PDF or view online for FREE

Model
KV-28WF3A
Pages
73
Size
13.69 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-28wf3a.pdf
Date
PREV: Sony KV-25C5A Service Manual

Sony KV-28WF3A Service Manual ▷ View online

KV-28WF3/32WF3
30
continued
82
Default value for TDA 9170
83
Default value for SAA 7185
84
Default value for TDA 4780
85
Default value for TDA 9144
86
Default value for TDA 9143
87
Default value for SDA 9288
88
Text character set Russia / east
89
Text character set Russia / west
90
Tenth entry is deleted
91
DOLBY mode normal
92
No function
93
No function
94
Noise sequence ‘left’
95
Noise sequence ‘centre’
96
Noise sequence ‘right’
97
Noise sequence ‘surround’
98
Surround mode ‘off’
99
DOLBY mode ‘phantom’
31
32
33
34
HP R
HP L
R2
V2
L2
A
AV INPUT/OUTPUT INTERFACE,COLOUR DECODER,
SOUND PROCESSOR, DOLBY NOISE REDUCTION,
MICRO CONTROLLER, MEGA TEXT
(1/2)
(
)
VIDEO
QSS
AM
SCL
SDA
AGC
TU101
AGC MON
SDA
SCL
SDA
V-S
TV ID
4
CN201
DUAL SCART
B1
9
B2
0
B6
B2
A2
0
A1
5
A6
A2
B8
A8
B1
5
B1
1
B7
B1
6
A1
9
A3
A1
B3
B1
CVBS OUT
CVBS IN
AUDIO L1 IN
AUDIO R1 IN
CVBS Y IN
SVHS-C IN
AUDIO L2 IN
AUDIO R2 IN
MODE
MODE
RED IN
GREEN IN
BLUE IN
BLANKING
CVBS OUT
AUDIO L OUT
AUDIO R OUT
AUDIO L OUT
AUDIO R OUT
34
8
32
10
38
3
40
1
6
V3
C3
L3
R3
HP L
HP R
L
R
SP L
SP R
36
14
13
37
39
SDA
SCL
Y/CVBS
C
IC101
AV INPUT/OUTPUT INTERFACE
48
6
MODE1
MODE2
41
CBVS IN TV
42
L IN TV
40
R IN TV
27
CVBS IN AV-1
25
L IN AV-1
26
R IN AV-1
43
CVBS IN AV-2
45
Y IN AV-2
47
C IN AV-2
44
L IN AV-2
46
R IN AV-2
1
CVBS IN AV-3
3
Y IN AV-3
5
C IN AV-3
2
L IN AV-3
4
R IN AV-3
33
L OUT
32
R OUT
23
CBVS OUT AV-2
22
L OUT AV-2
20
R OUT AV-2
V
L1
R1
V/Y
C
L2
R2
V3
C3
L3
R3
18
L OUT PIP
16
R OUT PIP
VIDEO AMP
Q110
DL
Q120
VID
6
IC104
SYNC SEP
TV SYSTEM
FILTER
Q103,104,106
1
2
+9V
BST +B
MAIN OUT
SUB OUT
ANT IN
ATTSW
30
31
R IN AV-1
L IN AV-1
IC201
SOUND PROCESSOR
(STEREO AND NICAM)
57
R OUT SP
47
L OUT TV
48
R OUT TV
56
L OUT SP
51
R OUT AV-2
50
L OUT AV-2
8
SDA
9
SCL
SDA
SCL
25
ANA-IN1
MONO IN (AM)
28
20
XTAL
21
XTAL
X200
18.432MHz
SCL
SDA
4
12
2
5
1
15
11
14
13
3
IC1303
DIGITAL COMB FILTER
SWITCH
KV-28WF3 AND
KV-32WF3 ONLY
JR1302
JR1301
KV-28WF3B AND
KV-32WF3B ONLY
6
5
SDA
SCL
IC302
MAIN COLOUR DECODER
(HELPER DECODING FOR PAL+)
18
FB IN
26
Y/CVBS IN
25
C IN
19
B IN
20
G IN
21
R IN
1
2
R-Y OUT
B-Y OUT
3
U IN
15
COMP OFF
4
V IN
RED
GREEN
BLUE
BLANK
10
9
30
31
X302
4.43MHz
X301
3.58MHz
11
12
14
15
5
SCP
IC303
10
SCP
11
V
17
HA
14
V OUT
13
U OUT
12
Y OUT
30
31
7
5
12
10
SDA
SCL
SCP
V IN
U IN
Y IN
26
V OUT
28
U OUT
21
Y OUT
IC304
ARTIFICIAL INTELLIGENCE
OUTPUT AMP
Q315-317
V50M
U50M
Y50M
SD
A
SC
L
6
7
8
1
3
5
CN310
HAM
SCP50M
VP50M
9
Q321,322
BUFFER
COMP OFF
KV-28WF3A/D/E/K,
KV-32 WF3A/D/E/K
ONLY
TO B BOARD
CN1810
TO D BOARD
CN0745
RF IN
KV-28WF3A/D/E/K,
KV-32WF3A/D/E/K
ONLY
KV-28WF3B,
KV-32WF3B
ONLY
REFXTAL
SECXTAL
DELAY
LINE
B
A
COMB Y
C
C
C
Y++
Y+
Y
COMB C
BPF
FL201
CP101
SCL
TO A BOARD
(2/2)
CN101 (1/2)
1
Q1303
AMP
Q1313
AMP
Q1302
AMP
Q1306
AMP
Q1305
AMP
Q1304
AMP
IC1004
RESET
GENERATOR
TO D BOARD
CN0745
IC1002 ROM
5
13
~
15
.
17
~
21
12
~
5
.
27
.
26
.
23
.
25
.
4
.
28
.
29
.
3
.
2
.
30
22
15
~
8
D0
D7
A0
A17
42
34
20
33
36
TVID
DL
CDATA
PL/NT
NRSDSP
49
38
30
41
AGCMON
Y/CVBS
VP100
HP100
BLANK SW
Q2006,2007
6
7
10
8
1
5
3
BLK TXT
VP100
HP100
TXT CLK
R TXT
G TXT
B TXT
64
4
5
2
17
61
62
63
IC2001
MEGA TEXT
BLAN
VS
HS
CLS
R
G
B
10
CVBS
7
6
XIN
XOUT
39
38
45
WE
RAS
CAS
9
~
12
.
14
~
18
.
5
34
~
26
.
35
IICEN
TXD
RXD
68
66
67
40
~
43
1
~
2
.
24
~
25
3
4
23
WE
RAS
CAS
RXD
TXD
M3LEN
43
44
53
RES
WATCH ENABLE
21
RESET
28
XTAL2
32
WATCH PULSE
55
RESET
27
XTAL1
26
STANDBY
35
MUTE
31
PIC ROTATION
18
KEY2
19
LED RESP
39
SIRCS
48
KEY1
50
CS EXTERNAL
40
SDA0
23
SCL0
22
MTX RESET
OSD OFF
V PULSE IN
AGCMONI
AURESET
PL/NT
SCL1
FS IN
TV IN
PSEN
IC1001
MICRO CONTROLLER
1
8
7
6
CD1001
6MHz
5
6
1
SDA1
SCL1
CS
IC1003
EPROM
STBY
AU MUTE
PIC ROT
KEY2
 RESP
SIRCS
22
20
21
25
16
18
24
26
23
35
9
1
2
RESET
SDA
SCL
16
15
2
10
11
7
6
SDA
SCL
X0
X1
X1101
14.32Mz
X1001
20.5Mz
KEY1
DISABLE
SDA
SCL
   (             )
AV INPUT/OUTPUT INTERFACE,
DIGITAL COMB FILTER, COLOUR
DECODER, SOUND PROCESSOR,
MICRO CONTROLLER, MEGA TEXT
TO B BOARD
CN1815
CN101(2/2)
TO A BOARD
(1/2)
CN115
(2/2)
A
IC1101
ID DECODER
IC2004
D-RAM
A0
A9
A0
A9
D0
D3
TO B BOARD
CN412
CE
SCL2
SDA2
STANDBY
MUTE
PIC ROT
KEY2
LED RESP
SIRCS
KEY1
CN2012
D0
D7
A0
A7
D0
D3
TO A
BOARD
(1/2)
3
~
1
.
68
~
56
.
7
.
46
3
4
1
2
BLOCK DIAGRAM (1)
SECTION 5
DIAGRAMS
BLOCK DIAGRAM (2)
35
36
37
38
KV32WF3
A/B/D/E/K ONLY
   (             )
HV OUT, PIN OUT,ROTATION AMP,
 AUDIO/VIDEO IN, AUDIO OUT JACK,
DF DRIVE, Q.P OUT
(2/2)
D
L
R
20
3
22
21
38
26
35
6
34
8
34
32
10
16
25
18
SCL
SDA
DISABLE
SCL
SDA
DISABLE
17
18
13
14
11
R IN 3
R IN 1
R IN 2
L IN 2
L IN 1
20
L IN 3
4
5
2
L OUT
SCL
SDA
9
L OUT
IC260
AUDIO SELECTOR
HP R
HP L
POWER ON
MUTE CONTROL
Q277-279
POWER ON
MUTE CONTROL
Q276, 280-282
6
7
1
3
IC261
HEADPHONES AMP
7
11
2
4
IC236
SPEAKER OUT
5
SP R OUT
SP L OUT
1
4
CN0746
VIDEO
L
R
Y/C
CN0001
2
3
4
FOR SERVICE
HEADPHONES
J900
FR C IN
FR V IN
FR L IN
FR R IN
J901
FUNCTION SW
S900-902
REMOTE CONTROL
RECEIVER
IC900
KEY 2
KEY 1
SIRCS
24
23
STBY+5V
D901
STANDBY LED
SP PROTECT
Q620,624
PROTECT
CONTROL
Q613,614
PROTECT DET
D613,Q606,607
+135V
SOFT  START
PROTECT
17
11
CN0102
STBY SW
Q617
ST CONT
12
SOFT START
SWITCH
D633, Q616
+135V
TO G BOARD
CN0702
5
RESP
PIC ROTATION
1
O
REG
on/off
IC604
+5V REG
+6.5V
+5V-1
1
O
REG
IC606
+12V REG
+15V
+12V
1
O
REG
on/off
IC607
+5V REG
1
O
REG
IC603
+8V REG
+6.5V
+10V
+5V-2
+8V
CN0743
10
3
8
5
6
11
1
14
12
H OUT DRIVE
Q801
HDT
T801
HDT
T802
6
7
IC801
DI-MOD
5
7
5
1
IC802
VERTICAL DEFLECTION
BOOSTER
PIN DRIVE
Q803
H DAMP
D802,803
PMT
T803
D804
PIN
PROTECT
+135V
H CENTRE
D805,806
RIGHT
LEFT
CENTRE
6
 -
 +
7
IC2071
ROTATION AMP
5
2
 +
 -
1
3
+8V
V+
V-
V OUT
Q804
V+
V-
T805FBT
H2
5
11
2
10
7
1
9
6
H1
13
FV
HV
DFT
T807
DFT
T806
1
4
5
2
3
1
5
6
4
3
2
1
+200V
D811
+200V RECT
+135V
-15V
+15V
D813
+15V RECT
D812
-15V RECT
3
1
2
5
 +
 -
7
6
IC1603
QP DRIVE
5
 +
 -
7
6
IC1601 (2/2)
DF AMP
+10V
+10V
2
3
5
QP OUT
Q1610,1611
DF DRIVE
Q1602, 1603
KV28WF3
A/B/D/E/K ONLY
H2
H1
G2
FV
HV
TO C BOARD
CN0421
CN0521
7
TO C BOARD
FJ (J701)
TO PICTURE TUBE
HV (V901)
8
7
VM
VM MUTE
CN3133
1
3
ROT (+)
ROT (-)
CN0004
DY1
V+
V-
H-
H+
CN1830
Q.P -
3
VM AMP
Q1701, 1702,
Q1704, 1706
7
VM
(VM AMP, Q.P)
Q.P +
2
5
VM OUT
Q1703, 1705
2
4
1
5
3
6
NECK
ASSY
VM IN
VM MUTE
Q1708
CN1701
3
2
5
7
Q.P -
Q.P +
Q.P.
Q.P.
VM
VM MUTE
DY
H DY
V DY
TO ROTATION
COIL
CN0002
Q.P -
Q.P -
KV-32WF3A/B/D/E/K
ONLY
 +
 -
4
T804
HLT
 +
 -
 +
 -
E/W
H-PULSE
HD
V-PROT
ABL
VM
TEXT BLK
TO B BOARD
CN417
6
TO A BOARD
CN101
1
STBY
AU MUTE
1
2
4
3
CN0745
J1200
L
R
VM DRIVE
Q1707, 1710,
Q1711, 1712
AC IN
LINE FILTER
LF602
17
11
12
ST CONT
PROTECT
SOFT START
POWER SUPPLY
G (        )
2
1
CN0772
2
1
AC IN
F601
S601
POWER
CN0723
5
1
CN0703
AC IN
AC IN
RELAY
RY601
1
CN0010
2
1
CN0009
3
DGC
DGC
2
1
CN0008
FOR
CHECK
RELAY SW
Q621
+10V
DGC CHK
DGC CHK
RELAY
RY602
RELAY SW
Q621
MAIN RECT
D601
3
5
1
5
T601 PIT
T603
10
7
+10V RECT
D636
STBY 5V REG
IC603
STBY
+5V
19
20
21
+ 22V
16
18
+10V RECT
D607
+ 10V
22
+13.5V RECT
D611
13
17
+ 13.5V
+6.5V RECT
D608
+ 6.5V
15
12
14
+135V RECT
D609, 610
+ 135V
4
8
D623
D630
+13.5V
T602 PRT
9
8
7
6
5
PROTECT
Q601-604
POWER
CONTROL
Q610-612
Q615
4
1
+ 13.5V
+ 135V
IC601
POWER MODULE
1
3
4
SOFT START SWITCH
Q605
4
3
1
2
TO D BOARD
CN0102
3
IC602
POWER DET
CN0702
5
22V RECT
D605
1/2
D
 
(    )
(
AC IN
)
- 22V
VARISTOR
VDR601
BLOCK DIAGRAM (3)
BLOCK DIAGRAM (4)
39
40
41
42
TO A BOARD
CN115
CN1815
CLP SW
Q1805
LPF
LPF
FL1801
LPF
3
7
9
15
0.83VPP
0.82VPP
CLP
B (                  )
A/D, D/A CONVERTER, DIGITAL NOISE
REDUCER, CRT DRIVER,
DEFLECTION PROCESSOR
IC1801
MAIN A/D CONVERTER
0.72VPP
17
16
14
CLK
HREF
CEN
19
~
22
24
~
31
IC1803
FIELD MEMORY
23
22
80
~
77
9
~
2
24
~
27
28
~
35
80
~
77
IC1809
DIGITAL NOISE
REDUCE ZOOMING
26
.
75
.
72
~
67
28
~
35
24
~
27
29
~
32
.
35
~
38
25
~
28
RST
SCL
RESET
SCL
SDA
1
9
2
SDA
IC1809
DIGITAL NOISE
REDUCE ZOOMING
18
~
25
13
~
16
56
36
32
39
30
40
31
38
28
23
23
23
CEN
IC1824
+5V REG
1
2
REG
+8V
SCL
SDA
IC1814
CONTROLLER
3
39
11
13
35
21
22
37
20
15
IC1823 +5V
REG
1
0
REG
3
14
16
4
3
14
16
4
33
13
9
1
2
4
4
RESET SW
Q1804,1809
25
~
32
LPF
FL1803
VM AMP
Q1801,1812
VM OFF SW
Q1802
38
IC1816
SOFTWARE
4
10
23
23
15
27
9
8
16
11
13
2
43
~
36
23
23
23
1
3
CN1810
Y50M
U50M
V50M
SCP50M
7
5
8
6
HAM
VP50M
TO A BOARD
CN310
23
23
TO A BOARD
CN2012
IC403
DEFLECTION PROCESSOR
4
5
6
8
15
29
21
22
12
26
11
28
35
IC402
CRT DRIVER
6
4
8
22
20
13
14
27
28
24
2
3
7
1
2
3
1
3
CN412
R TXT
G TXT
TXT BLK
SCP50M
7
5
8
6
HAM
VP50M
B TXT
5
CUT-OFF
D410,Q415,416
19
+8V
15
IC1825
FREE RUN PLL
IC1815
DISPLAY
PLL
IC1812
MAIL PLL
+8V
WE1
WC1
D0
D7
UV0
UV3
D4
D11
D3
D0
Q4
Q11
Q0
Q3
YA0
YA7
UVA3
UVA0
Q1810
WC1
Q1808
V100
H100
P33
P00
P07
P12
YUV0
YUV7
UV3
UV7
YB0
YB7
UVB0
UVB3
Y0-Y7
Y0-Y7
V0,V1,U0,U1
V0,V1,U0,U1
Y0-Y7
V0,V1,U0,U1
SDA
0.64VPP
UREF
SCL
YUV0
YUV7
CLL
SCA
RC
UV4
UV7
1.05VPP
1.3VPP
HS
RES
VS
BLN
SWC1
VACQ
HRA
LLA
HRDFL
LLDFL
WE2
BLND
ALE
WRD
HDFL
VDFL
PO
P7
SRC1
RST
DA
CL
RST
CEN
SDA
SCL
ALE
WRN
RON
V-PULSE
P27
X1801
10MHz
D415
BLK TXT
TXT BLK
SDA
SCL
SDA
SCL
RXD
TXD
PIO
P23
SDA
SCL
VM OFF
0.31VPP
1.05VPP
1.3VPP
R2
G2
B2
FSW1
SCP
FSW2
ABL
IK
B
G
R
IK
B
G
R
X401
24.576MHz
1
CN419
6
3
2
CN417
20
SCLK
SDAT
SCP
VSYNC
HSYNC
RESN
HPROT
VPROT
ABL
HD
VD+
VD-
E/W
2
10
14
12
1
11
3
5
6
8
TO D BOARD
CN0743
SDA
SCL
6
6
4
2
STANDBY SW
Q703
6
C
(RGB OUT)
RV702
H STAT
8
CN0403
R
TO D BOARD
HV (T805)
IK
G4
R
HV
1
POWER ON
SWITCH
D707, Q705
+12V
RCV
G
5
9
3
1
8
VB
VOF
IK
VO
VI
5
9
3
1
VB
VOF
IK
VO
VI
IC705
VIDEO OUT (RED)
IC704
VIDEO OUT (GREEN)
5
9
3
1
VB
VOF
IK
VO
VI
IC703
VIDEO OUT (BLUE)
STANDBY SW
Q702
STANDBY SW
Q701
VOLTAGE DET
Q704, 706
+12V
PEAK LIM
3
FV
TO D BOARD
FV (T805)
J701
LIMITER
SWITCH
D720-722, Q707
RV701
G2
G2
3
H1
5
H2
6
H2
5
H1
4
G2
1
V901
PICTURE  TUBE
CN0421
TO D BOARD
CN0521
2
G
B
1
9
10
13
8
8
7
8
8
8
BLOCK DIAGRAM (5)
BLOCK DIAGRAM (6)
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