Sony KV-28DS20U Service Manual ▷ View online
37
38
40
39
[ DYNAMIC FOCUS OF DQP & SUBWOOFER AUDIO AMP ]
D1
D618
PROTECT
3
5
6
7
48
46
45
43
42
9
12
26
25
24
28
23
39
13
38
15
35
20
31
21
22
TO C BOARD
CN703
ROT COIL
V- OUT
E/W
V- OUT
H DRIVE
V SYNC
HFBP
EHT
ABL
DGC RELAY
PROT
AFC
SIRCS
SPKRL
STBY
SMART SW
STBY LED
VM OUT
MUTE
H/P L
H/P R
R IN
L IN
V IN
C IN
Y IN
TO A (2/2)
BOARD
CN1
5
-
+
7
IC800
PIN CORRECTION
5
PIN OUT
Q800, 801
SWITCH
Q503
SWITCH
Q501
SWITCH
Q502
IC500
V OUT
1
3
5
6
7
+
D803
V BOOST
+15V
V +
I/P
F B-PL
S
V O
U
T
Vc
c
O
U
T
V -
I/P
T800
PMT
PMT
L804
HLC
HLC
D807
L802
+135V
D815
H CENT
D808
H CENT
5
3
6
4
1
2
1
4
2
8
D810
200V RECT
9
7
135V
+15V
-15V
HV
13
11
FV
12
200V
+B
CN802
FV TO C BOARD
J701 (G4)
HV TO
PICTURE TUBE
200V
H2
CN800
V+
V-
H-
H+
H OUT
Q802
H DRIVE
Q803
SWITCH
Q805
D800
H DUMPER
D801
H DUMPER
+9V
4
1
3
3
1
5
4
3
2
1
RELAY DRIVE
Q611
D619
PROJECT
RY600
+15V
R
L
R
L
MUTE
Q1204
Q1204
1
IC1201
HEADPHONE AMP
7
3
6
MUTE
Q1203
Q1203
MUTE SWITCH
Q1202
+5V
5
3
OPEN
CN1408
L OUT
R OUT
J1200
L
R
4
CN1401
TO VM BOARD
CN1716
MUTE SWITCH
Q1200
VM OUT
SPR
MUTE
MUTE SW
CN1403
TO D1 BOARD
CN2202
MAIN RECT
D600
D606
D601
D605
4
8
6
14
3
D603
REF
D604
SOFT START
Q601
4
3
2
1
IC601
OPTO-COUPLER
T601
SRT
SRT
2
REG
2
1
IC602
ERR-AMP
POWER OFF SWITCH
Q605, 606, D617, 625
+135V
+33V
20
21
19
16
17
18
-21V
D613
+21V RECT
D614
-21V RECT
+21V
3
1
15
D609
135V RECT
+15V
1
3
IC606
9V
STDBY 5V
IC603
D612
15V RECT
D611
5V RECT
7.5V
DGC
CN601
THP600
AC IN
AC IN
IC600
POWER CONTROL
POWER CONTROL
8
4
3
9
INH
F/B
Vcc
B
7
6
1
5
OCP
C
D IN D OUT
+
D607
5V REG
9V REG
CN902
D505
D504
D507
T803 FBT
L801
T804
HDT
HDT
D502
-15V RECT
D503
+15V RECT
4
IC1200
AUDIO AMP
7
2
5
11
L IN L OUT
R IN R OUT
CN602
D
( )
DEFLECTION AND
POWER SUPPLY
POWER SUPPLY
TO H BOARD
CN5601
RY601
RELAY DRIVE
Q607
13
D608
2
2
1
4
3
12
5
7
1
3
4
6
8
13
11
9
8
3
1
CN805
CN903
R AV IN
L AV IN
MPEG/AV3L
MPEG/AV3
MPEG/AV3R
TO H BOARD
CN5903
HP L
HP R
Y IN
C IN
MPEG/AV3R
MPEG/AV3L
CN904
SMART CORR
H-
SMART SW
TO D2 BOARD
CN8801
16
SPKRR
DF TO D1 BOARD
CN 2806
6
2
CN804
5
6
R825
3
1
3
4
5
CN1803
ROT COIL
V-DRIVE
V+ SAW
KEY
RESPL
CN901
TO H BOARD
CN5901
TO VM BOARD
CN1801
STBY +5V
MUTE SWITCH
Q1201
SPL
TO D1 BOARD
CN3803
S801
+135V
4
3
MUTE
MUTE SW
TO A2 BOARD
CN4407
CN1407
TO D1 BOARD CN2804
3
CN801
CN1801
VM AMP
Q1701, 1702,
Q1708, 1709
Q1708, 1709
VM
( )
VELOCITY MODULATION &
DYNAMIC CONVERGENCE
DYNAMIC CONVERGENCE
VM AMP
BUFFER
BUFFER
Q1704, 1705
VM OUT
Q1703, 1706
NECK ASSY
VM OUT
CN1718
Q.P -
Q.P +
Q.P.
VM
TO
D1 BOARD
CN2807
CN1716
4
TO
D BOARD
CN1401
135V
+9V
1
3
GND
VM
TO
D1 BOARD
CN2805
CN1802
ROT -
ROT +
IC1802
ROTATION AMP
+
-
6
7
5
+
-
2
6
3
TO
ROTATION
COIL
3
4
5
6
CN1717
ROTATION
V-DRIVE IN
V+ SAW
2
3
8
6
5
V SAW
VS IN
REFV
OUT
HDY
CONN
HSTAT
3
2
6
IC1501
CONVERGENCE
CONTROLLER
IC1502
DYNAMIC
CONVERGENCE
CY AMP
Q1505,
1506
4
3
1
ABL
CY+
CY-
CN1502
TO
A BOARD
CN303
1
3
CN1719
1
2
3
4
( )
TO D BOARD
CN801
3
TO VM BOARD
CN1719
CN2804
CN2805
TO VM BOARD
CN1717
6
CN2807
QP OUT
Q2805,Q2806
15V PULSE
QP-
1
3
CN2806
DF
D1
IC2803
7
2
1
+
-
IC2801
2
3
1
+
-
6
5
7
+9V
TO D BOARD
CN802
DYNAMIC FOCUS OF DQP
4:3 AND 14:9 ASPECT MODE
SWITCHING, SUBWOOFER
AUDIO AMP
STBY
MUTE SW
Q2203
MUTE SW
Q2201, 2202
INPUT
9
10
1
OUTPUT
STBY/
MUTE
MUTE
MUTE
MUTE SW
SPL
SPR
1
CN2203
TO
SUBWOOFER
IC2201
SUBWOOFER AMP
TO D BOARD
CN1403
CN2202
5
4
3
2
1
6
2
3
4
5
6
1
RELAY SW
Q3801
RELAY SW
Q3802
T3802
T3801
1
4
TO A BOARD
CN4
CN3801
RELAY
RY3802
RY3802
RELAY
RY3801
RY3801
+9V
+9V
V-DY+
V-DY-
H-DY-
H-DY-
H-DY+
H-DY+
H-DY+
H-DY+
H-DY-
H-DY-
V-DY-
V-DY+
CN3802
CN3803
TO D BOARD
CN800
H DY
V DY
DY ASSY
V+
V-
H+
H-
4
5
CN8801
TO D BOARD
CN805
SWITCH
Q8802, 8803
IC8801
SMART MODE
DEFLECTION
H-
D2
(SMART MODE DEFLECTION)
Q8801
H-
SWITCH
SMART CORR
SMART CORR
7
11
12
1
3
2
4
+15V
[ VELOCITY MODULATION & DYNAMIC CONVERGENCE ]
VM
[ SMART MODE DEFLECTION ]
D2
[ DEFLECTION AND POWER SUPPLY ]
D
BLOCK DIAGRAMS 2
41
42
43
44
N ( )
(1/2)
CN3101
TO A2 BOARD
CN4002
CN3401
IC3402
3 STATE BUFFERS
3
MDO (7)
5
MDO (6)
7
MDO (5)
9
MDO (4)
12
MDO (3)
14
MDO (2)
16
MDO (1)
18
MDO (0)
17
15
13
11
8
6
4
2
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
2A4
2A3
2A2
2A1
1A4
1A3
1A2
1A1
DATA (7)
DATA (6)
DATA (5)
DATA (4)
DATA (3)
DATA (2)
DATA (1)
DATA (0)
DATA (7)
DATA (6)
DATA (5)
DATA (4)
DATA (3)
DATA (2)
DATA (1)
DATA (0)
8a
8b
9a
9b
10a
10b
11a
11b
6b
7a
PTEN
PTCK
3
MDI (7)
5
MDI (6)
7
MDI (5)
9
MDI (4)
12
MDI (3)
14
MDI (2)
16
MDI (1)
18
MDI (0)
17
15
13
11
8
6
4
2
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
2A4
2A3
2A2
2A1
1A4
1A3
1A2
1A1
DATA (7)
DATA (6)
DATA (5)
DATA (4)
DATA (3)
DATA (2)
DATA (1)
DATA (0)
3
MO (7)
5
MO (6)
7
MO (5)
9
MO (4)
12
MO (3)
14
MO (2)
16
MO (1)
18
MO (0)
17
15
13
11
8
6
4
2
2A4
2A3
2A2
2A1
1A4
1A3
1A2
1A1
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
MDO (7)
MDO (6)
MDO (5)
MDO (4)
MDO (3)
MDO (2)
MDO (1)
MDO (0)
IC3409
3 STATE BUFFERS
2
A (18)
4
A (19)
6
A (20)
8
A (21)
11
A (22)
3
5
6
9
12
14
16
18
1A1
1A2
1A3
1A4
2A1
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
MDI (7)
MDI (6)
MDI (5)
MDI (4)
MDI (3)
MDI (2)
MDI (1)
MDI (0)
11
~
18
2
~
9
~
9
B8
B1
A1
A8
1
DIR
R/W
TO A BOARD
(2/2)
D(16)-D(23)
IC3403
BUS TRANSCEIVER
15
SEL0
78
A(23)
A(0)
HA0
79
HA1
58
TSCK
57
A(1)
PTCK
CMISTAT
MISTR
6
PTCK
IA3
IC3405
3 STATE BUFFERS
11
A(15)
2A3
13
A(16)
2A2
15
A(17)
2A3
4
PTEN
IA2
2
CMISTAT
IA1
2Y3
2Y2
2Y1
5
7
9
MISTAT
MIVAL
MICLK
2
CMISTAT
1AI
IC3408
4
PTEN
1A2
6
PTCK
1A3
2A3
1Y3
2A2
15
14
13
MDVAL
MICLK
MDCLK
MIVAL
MDSTAT
1Y2 16
2A4 17
18
MISTAT
1Y1
IC3201
OP AMP
7
OUT
1
OUT
+ 3
- 8
IC3203
AUDIO D/A
A OUT R
A OUT L
SD
WS
2
1
SD
WS
SCK
FSCLK
SCK 3
FSCLK 14
6
9
25a
24a
24b
A(0)-A(23) TO N BOARD
(2/2)
38
~
34
.
31
~
25
YUV011
YUVDO
59
24
TSSTR
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
16a
16b
17a
17b
18a
18b
UV0
UV1
UV2
UV3
15a
15b
14b
14a
13b
13a
19b
7b
2b
3a
5b
1b
SDATV
SCLTV
DIG-EN
TXD2
1a
RXD2
19a
20a
43
4
IC3413
2
44
IC3406
TO N BOARD
(2/2)
1
IOWR
OE
CE1
61
62
64
IOWA
OE
CE1
IORD 60
SI2 47
SI3 46
WE 41
SI0 17
SI1 18
SO1 20
IORD
CD2
VSI
WE
IREQ
CD1
RESET
56
~
53
.
51
~
48
DO
D7
14
12
11
AVIRQ
AVDTACK
R/W
77
~
74
.
71
~
68
HDO
HD7
3
~
~
10
YUVIO
YUVI7
IC3410
3 STATE BUFFERS
12
9
7
AC(11)
AC(12)
AC(13)
AC(10)
AC(9)
14
16
18
AC(8)
5
AC(14)
8
11
13
6
4
2
15
A(11)
A(12)
A(13)
A(10)
A(9)
A(8)
A(14)
IC3411
3 STATE BUFFERS
12
9
7
AC(3)
AC(4)
AC(5)
AC(2)
AC(1)
14
16
18
AC(0)
5
AC(6)
8
11
13
6
4
2
15
A(3)
A(4)
A(5)
A(2)
A(1)
A(0)
A(6)
17
3
AC(7)
A(7)
53
~
57
.
60
~
69
.
72
HD15
HD0
IC3103
DC MULTIPLEXER AND
GRAPHICS
R/W
DMXIRQ0
DMXIRQ1
73
74
WE
WE1
CS2
SPISI 43
SPISO/HSDO
46
SPIXCS/HSD1 47
SPICLK/HSDEN
48
CHDATA0
CHDATA7
75
.
76
.
80
~
99
HA22
HA1
121
~
128
VDIN7
VDIN0
141
~
148
RESET
75
SCAVCLK
CADEN
CVDEN
153
DECVSYNC
DECHSYNC
152
151
117
100
101
102
103
R/W
DMXIRQ0
DMXIRQ1
WE
WE1
CS2
DMUXACK
TO N BOARD
(2/2)
41
~
44
.
46
~
49
IC3205
MPEG VIDEO DECODER
99
86
SDRAM_ADDR(11)
87
91
88
21
~
24
.
26
~
29
.
31
~
34
.
36
~
39
150
~
153
.
155
~
158
98
100
MDA(4)
MDA(3)
MDA(2)
MDA(5)
MDA(6)
MDA(7)
MDA(1)
SDRAM_ADDR(4)
SDRAM_ADDR(3)
SDRAM_ADDR(2)
SDRAM_ADDR(5)
SDRAM_ADDR(6)
SDRAM_ADDR(7)
SDRAM_ADDR(8)
SDRAM_ADDR(10)
SDRAM_ADDR(9)
94
SDRAM_ADDR(1)
SDRAM_ADDR(0)
MDA(0)
90
92
95
98
MDA(8)
MDA(9)
MDA(10)
MDA(11)
69
62
SDRAM_DATA(15)
59
57
54
66
DO(8)
DO(7)
DO(6)
DO(9)
DO(10)
DO(11)
DO(5)
SDRAM_DATA(8)
SDRAM_DATA(7)
SDRAM_DATA(6)
SDRAM_DATA(9)
SDRAM_DATA(10)
SDRAM_DATA(11)
SDRAM_DATA(12)
SDRAM_DATA(14)
SDRAM DATA(13)
63
SDRAM_DATA(5)
SDRAM_DATA(4)
DO(4)
65
67
70
73
DO(12)
DO(13)
DO(14)
DO(15)
71
DO(3)
DO(2)
DO(1)
DO(0)
61
58
55
53
SDRAM_DATA(3)
SDRAM_DATA(2)
SDRAM_DATA(1)
SDRAM_DATA(0)
74
SDRAM_WE
75
VS
77
SDRAM_RAS
78
SDRAM_UDQ
83
CPBIMEXT
4
IY
5
VDD
IC3115
+5V
40
9
~
~
16
IC3202
DIGITAL VIDEO
ENCODER
30
7
8
2
IC3102 AND GATES
1
4
3
6
DECSYNC
DECFIELD
139
140
6
1
1
IC3206 EXOR GATES
DECSYNC
DECFIELD
HS
V_STROBE
A_STROBE
107
108
146
159
FSCLK
139
SCK
142
SO
143
WS
145
DATA(0)
DATA(15)
ADDRESS(1)
ADDRESS(8)
AV_DATA(0)
AVDATA(7)
D(16)-D(23)
D(24)-D(31)
IC3207
23
31
22
20
19
22
21
30
29
28
27
43
2
5
8
11
46
49
48
45
42
39
40
3
6
9
12
15
16
17
14
35
SDRAM_CAS
WEN
RASN
LDOM
UDOM
CASN
MDA(4)
MDA(3)
MDA(2)
MDA(5)
MDA(6)
MDA(7)
MDA(1)
MDA(0)
MDA(8)
MDA(9)
MDA(10)
MDA(11)
DO(8)
DO(7)
DO(6)
DO(9)
DO(10)
DO(11)
DO(5)
DO(4)
DO(12)
DO(13)
DO(14)
DO(15)
DO(3)
DO(2)
DO(1)
DO(0)
A11
A4
A3
A2
A5
A6
A7
A8
A10
A9
A1
A0
DO6
DO8
DO9
DO11
DO10
DO12
DO14
DO0
DO4
DO2
DO13
DO15
DO1
DO3
DO5
DO7
24
54
53
50
49
48
47
56
55
MDI17/A25
MDI16/A24
MDI15/A23
MDI14/A22
MDI13/A21
MDI12/A20
MDI11/A19
MDI10/A18
39
38
37
66
65
64
41
40
MDO7
MDO6
MDO5
MDO4
MDO3
MDO2
MDO1
MDO0
46
63
19
62
20
57
MISTAT
MOSTAT
MIVAL
MOVAL
MICLK
MOCLK
24
25
26
27
28
29
A5
A4
A3
A2
A1
A0
23
A6
22
A7
21
A12
14
A14
13
A13
12
A8
11
A9
10
A11
8
A10
9
7
45
44
67
43
15
16
36
58
CE1
OE
IOWA
IORD
CD2
VSI
WE
IREQ
CDI
RESET
30
D0
31
D1
32
D2
2
D3
3
D4
4
D5
5
D6
6
D7
CN3102
8
MDO(0)-MDO(7)
AC(0)-AC(14)
MDI(0)-MDI(7)
A1-A8
PTSTRT
HREFO
R OUT
L OUT
CVBS OUT
UV0,UV1,UV2,UV3,Y0-Y7
TO N
BOARD
(1/2)
MDO(0)-MDO(7)
A(1)-A(22)
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1A1
1A2
1A3
1A4
2A1
2A2
2A3
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
YUVENC(0)-YUVENC(7)
CVD(0)-CVD(7)
RESET
D(16)-D(31)
CVBS
RCV1
RCV2
MP7
MP0
2
2
13
2Y
1B
GH
A
B
1A
TO N BOARD
(2/2)
CS3
CS
IC3404
3 STATE BUFFERS
IC3407
3 STATE BUFFERS
IC3204 EXOR GATES
DUMMY
DIGITAL
PROCESSING
BLOCK DIAGRAMS 3
[ DIGITAL PROCESSING ]
N
1/2
45
46
48
47
19
PP7/PST3
PP6/PST2
PP3/DDATA3
PP2/DDATA3
TMS/BKPT
TRST/DSCLK
TD0/DS0
TD1/DS1
PP5/PST1
PP4/PST0
PP1/DDATA3
PP0/DDATA0
136
45
40
A26/CS6/WEI
CS2
RXD2
TXD2
38
64
63
61
62
54
IRQ1/IPL0
IRQ4/IPL1
ATA
IRQ1/IPL2
A25/CSS
R/W
IC3308
CPU
WEI
CS2
RXD2
TXD2
159
158
157
156
154
153
152
151
126
124
121
127
137
PP(0) - PP(7)
7
20
8
21
9
22
10
PP6/PST2
PP5/PST1
PP2/DDATA2
PP7/PST3
PP3/DDATA3
PP4/PST0
PP1/DDATA1
PP0/DDATA0
PP7/PST3
PP6/PST2
PP3/DDATA3
PP2/DDATA2
PP5/PST1
PP4/PST0
PP1/DDATA1
PP0/DDATA0
TO N BOARD
(1/2)
17
18
15
14
6
10
13
1
12
9
5
4
2Y
3B
1C
1A
1Y
2B
2C
3A
IC3312
3 INPUTS AND GATES
13
6
5
4A
2Y
2B
IC3320
NAND GATES
2
1
3
1Y
1A
1B
R/W
TO N
BOARD
(2/2)
DMXTRQ1
AVIRQ
TO N BOARD
(2)
5
1
13
2L0
5
4L1
IC3318
SELECTORS
4
9
7
2Y
3Y
1Y
41
WE/A17/LS7
59
2
1
3
9
1B
1A
1Y
3A
IC3313
NAND GATES
10
13
3B
4B
12
4A
TO N BOARD
(2/2)
R/W
ACTAVRST
TO N BOARD
(2)
DEMUXACK
AVDTACK
TO N BOARD
(2/2)
DMXTRQO
TO N BOARD
(2)
IC3315
GP OUT BY LATCH
1
3
2D
1D
4
7
8
13
14
17
18
3D
4D
5D
6D
7D
8D
6
19
11
C
3Q
9
4Q
IC3316
GP INPUT BY LATCH
1
2
5
6
9
12
15
16
19
18
11
C
8D
2Q
1Q
3Q
4Q
5Q
6Q
7Q
8Q
TO N BOARD
(2/2)
ADVS
IC3317
1A1
2Y4
1A2
2Y2
1A4
2Y1
19
11
18
17
12
13
2G
2A1
1Y1
2A4
1Y4
2A2
IC3309
8 MBIT FLASH
28
R/W
12
11
RESET
/WE
29
.
31
.
33
.
35
.
38
.
40
.
42
.
44
.
30
.
32
.
34
.
36
.
39
.
41
.
43
.
45
D16
D31
25
~
18
.
8
~
1
.
8
~
1
.
48
.
17
.
16
A1
A19
IC3310
8 MBIT FLASH
28
R/W
12
11
RESET
/WE
45
.
43
.
41
.
39
.
36
.
34
.
32
.
30
.
44
.
42
.
40
.
38
.
35
.
33
.
31
.
29
D16
D31
25
~
18
.
8
~
1
.
8
~
1
.
48
.
17
.
16
A1
A19
D(16)-D(31)
D(16)-D(31)
120
.
119
.
117
~
113
~
111
.
109
~
107
.
105
~
103
.
101
~
99
.
97
~
95
.
93
~
91
.
89
~
87
.
85
~
83
.
81
~
79
DO
D31
D(0)-D(31)
TO N BOARD
(1/2)
78
DRAMW
76
CAS3
75
CAS2
74
CAS1
72
CAS0
71
RASO
CTSI
RTSI
RXDI
142
TXDI
141
139
138
DRAMW
CAS3
CAS2
CAS1
CAS0
RAS0
1
.
2
.
4
.
5
.
7
.
8
.
.
2
.
4
.
5
.
7
.
8
.
10
.
11
.
13
.
14
.
16
.
17
.
19
.
20
.
22
.
23
25
.
26
.
28
.
29
.
31
.
32
.
34
.
35
A(0)
A(23)
A(0)-A(23)
TO N BOARD
(1/2)
IC3307
16 MBIT ED DRAM UPPER
17
35
/WE
/LCAS
49
~
46
.
44
~
41
.
10
~
7
.
5
~
2
7
.
5
~
2
21
~
23
.
28
~
32
.
24
.
27
A0
A9
34
18
/UCAS
/RAS
DQ16
DQ1
DRAMW
CAS1
CAS0
RAS0
IC3304
16 MBIT ED DRAM UPPER
17
35
/WE
/LCAS
49
~
46
.
44
~
41
.
10
~
7
.
5
~
2
7
.
5
~
2
21
~
23
.
28
~
32
.
24
.
27
A0
A9
34
18
/UCAS
/RAS
DQ16
DQ1
DRAMW
CAS1
CAS0
RAS0
IC3301
RESET
RESET
1
2
+5V
A(9)-A(15), A(17), A(19), A(21)
A(1)-A(19)
A(1)-A(19)
2
3
4
7
8
9
2
5
8
1
3
6
4
7
CN3301
MODEM
MODEM
OUT
+5V
8Q
4
RESET
CN3302
RSTI
N( )
2/2
D (24)
D (25)
D (26)
D (27)
D (28)
D (29)
D (30)
D (31)
D (24)
D (25)
D (26)
D (27)
D (28)
D (29)
D (30)
D (31)
D(16)-D(24)
D(0)-D(15)
46
C53
OPEN
CN4001
KV-28DS20U/32DS20U ONLY
S-OUT
10
IC4200
RGB SWITCH
8
11
6
7
B2 IN
B OUT
G2 IN
G OUT
A2
( )
DIGITAL INTERFACE DOLBY CENTRE
AND SURROUND AMPLIFIER
AND SURROUND AMPLIFIER
12
2
1
1
5
2
4
6
8
10
12
14
15
9
11
13
TO J BOARD
CN3201
C-OUT
SUB WOOFER MUTE
6
4
3
1
CN4206
L3 OUT
V3 OUT
R2 IN
L2 IN
L2 IN
R2 IN
V2 IN
CN4205
TO A BOARD
CN205
B OUT
G OUT
R OUT
FB OUT
FB1 IN
B1 IN
G1 IN
R1 IN
1
5
2
4
6
8
10
12
14
15
9
11
13
15
36
16
35
17
18
33
40
11
41
10
42
9
14
43
8
45
7
44
5
1
50
2
2
7
3
Y 07
Y 06
Y 05
Y 04
Y 03
Y 02
Y 01
Y 00
12
13
15
4
2
3
5
4
IC4005
PORT EXPANDER
3
1
10
R2 IN
B1 IN
G1 IN
R1 IN
SEL
R OUT
FB OUT
FB1 IN
14
FB2 IN
F BLK
RGB
29
10
26
12
11
MP6
B (CG)
MP5
G (Y)
23
13
15
14
16
MP4
MP3
MP2
MP1
MP0
R (Cr)
9
MP7
IC4001
DIGITAL VIDEO
ENCODER
Y 07
Y 06
Y 05
Y 04
Y 03
Y 02
Y 01
Y 00
CN4204
KV-28DS20U/32DS20U ONLY
S-IN
TO A1 BOARD
CN1204
1
3
4
IC400
DOLBY AMPLIFIER
7
2
5
F BLK
RGB
11
MUTE SW
Q4260, 4261
C-IN
MUTE SW
MUTE
3
4
7
CN4407
TO D BOARD
CN1407
39
IC4003
AUDIO/VIDEO SWITCH
40
30
32
L3 OUT
V3 OUT
16
18
15
4
6
2
1
R3 IN
L3 IN
MODE 3
V3 IN
L2 IN
V2 IN
33
R2 IN
1
3
2
6
8
19
20
R OUT
L OUT
R IN
L IN
MODE
V IN
V OUT
J4001
IC4009
A/D CONVERTOR
8
11
4
11
OUT B
IND
SDA DTV
12
1
6
13
5
INC
OUT A
SWA
SWB
SWC
SCL DTV
8
9
SDA
SCL
46
PLLSW
12
SWD
SWITCH
Q4009
DATA 07
DATA 06
DATA 05
DATA 04
DATA 03
24
D04
18
D01
20
D02
22
D03
16
D00
D04
D01
D02
D03
D00
26
28
D05
D06
30
D07
DATA 02
DATA 01
DATA 00
D05
D06
D07
34
32
SYNC
CLOCK
48
DEN
PTSTART
PTCK
PTEN
PTSTART
PTCK
PTEN
OFDM RESET
RXD
TXD
TXD2
RXD2
RESET
CN4901
TO N BOARD
CN3101
10
38
AGC
SDA DTV
36
SCL DTV
42
RESET
SDA DTV
SCL DTV
IC4008
PLL SWITCH
1
9
10
AGC IN
SCL
SDA
SDA DTV
SCL DTV
TU4001
CN4002
[ DIGITAL PROCESSING ]
N
2/2
BLOCK DIAGRAMS 4
[ DIGITAL INTERFACE, DOLBY CENTRE & SURROUND AMPLIFIER ]
A2
5-2. CIRCUIT BOARD LOCATION
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note :
PRINTED WIRING BOARDS
Note :
•
All capacitors are in µF unless otherwise noted.
•
pF : µµF 50WV or less are not indicated except for
electrolytic types.
electrolytic types.
•
Indication of resistance, which does not have one for
rating electrical power, is as follows.
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
Electrical power rating : 1/4W
•
Chip resistors are 1/10W
•
All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
k = 1000 ohms, M = 1000,000 ohms
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
characteristic curve B, unless otherwise noted.
•
All voltages are in Volts.
•
Readings are taken with a 10Mohm digital mutimeter.
•
Readings are taken with a color bar input signal.
•
Voltage variations may be noted due to normal production
tolerences.
tolerences.
•
: B + bus.
•
: B - bus.
•
: RF signal path.
•
: earth - ground.
•
: earth - chassis.
Reference Information
RESISTOR
RN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE WIREWOUND
: 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
Les composants identifiés par une trame et
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
CVM Board
A Board
S1 Board
VM
C
H
D1
A
J
A2
N
D
A1
D2
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