Sony KV-AW21M50 (serv.man3) Service Manual ▷ View online
KV-AW21M50/M81/P50
RM-GA002
KV-AW21M50/M81/P50
RM-GA002
[PROCESSOR, AUDIO, POWER SUPPLY, DEFLECTION, TUNER, JACK, HEAT SINK ]
A
4-5.
PRINTED WIRING BOARDS
– 85–
– 86–
– A Board –
NOTE:
The circuit indicated at left contains high voltage of over
1220 Vp-p. Please pay attention when inspecting or
repairing it to prevent an electric shock.
The circuit indicated at left contains high voltage of over
1220 Vp-p. Please pay attention when inspecting or
repairing it to prevent an electric shock.
A
1
2
3
4
5
6
7
8
9
10
11
12
13
B
C
D
E
F
G
H
I
J
R018
R400
R401
R402
R403
W030
R210
FB608
W031
R211
R405
W032
R212
R406
W033
R213
1
4
CN003
W034
R020
R214
R408
17
CN004
FB800
W035
R021
R215
1
3
1
CN005
2
PS2601
R216
R023
R217
1
5
CN007
R024
R218
J900
R025
R219
1
5
CN009
J901
R026
R602
J903
J904
4
CN200
1
1
R029
R411
J905
1
3
CN201
R412
J906
CN202
R413
J907
5
CN203
CN010
R220
R414
J908
SWF100
R221
J909
R609
SWF101
R222
R416
R223
R417
SWF103
R030
R224
R800
R225
R419
R801
R226
R802
R227
R803
R228
R804
C1329
R229
R805
R612
R806
R807
R038
R420
R808
R808
R039
R421
R809
R9005
R422
R616
R9006
R423
R9007
R230
R424
R618
R9008
W051
R425
R619
R9009
C001
W052
R232
C002
W053
R233
C003
W054
R234
R810
C004
CN600
W055
R041
R235
C005
CN601
R042
R236
R812
C006
CN602
W057
R237
R813
W058
R044
R238
R620
R814
R9010
C008
W059
R045
R239
R621
R815
C009
TU101
R046
R816
1
3
9
11
7
TU102
R623
R817
R048
R624
R818
C200
R9015
C201
R9016
C202
R627
R9017
C203
W060
R240
R9018
C010
C204
1
3
CN800
R241
R9019
C011
C205
1
5
CN801
X001
W062
R242
C012
C206
W063
R243
C013
C207
R244
W064
R820
C014
C208
W065
R051
R821
C015
C209
W066
C016
R822
W067
R823
R824
R9020
C018
R631
R825
R9021
R056
R826
R9022
R633
R827
R9023
R058
R634
R828
C210
R059
R635
R829
R9025
C211
R636
R9026
C212
R9027
C213
R638
R9028
C020
C214
R639
C021
C215
C022
C216
C023
C217
R060
R830
C024
C218
C600
R061
R831
C025
C219
FH601
C026
C602
FH602
R833
FH603
R640
R834
R9030
C028
R835
R9031
C029
C605
C606
R838
R9034
C220
R645
C221
C609
R646
R9036
R647
C223
R9038
C030
C224
C800
C032
C226
C227
C803
R840
C034
C228
C610
C804
TH800
R841
C611
C805
R842
C036
C612
C806
R843
C037
C807
R650
R844
R9040
C038
C808
R651
R845
R9041
C809
R846
R9042
C616
R653
R847
R9043
R654
R848
R9044
C230
R655
R9045
C231
C619
R656
R9046
C232
R9047
R658
R9048
C234
C810
R659
R9049
C041
C235
C811
C042
C236
C237
C813
C044
R851
C239
C621
C815
R852
C046
C622
C816
R853
C623
R660
R854
R9050
C048
C624
S600
R661
R855
R9051
C049
C625
R856
R9052
C626
R087
R857
R9053
R088
R858
C240
C628
R665
R859
C241
C242
R666
R667
R668
R9058
C050
R669
R9059
C051
C052
C822
C053
C054
C630
S800
R861
C055
C825
C056
C632
C826
C057
R864
R9060
C058
C634
C828
R865
R9061
C635
C829
R096
R672
R866
R097
C637
R098
R868
C638
R099
R675
R869
C639
M
D
C060
C830
C061
C831
C062
C832
D002
C063
C833
D003
R870
C064
C834
D004
Q100
RY600
R871
C065
C641
C835
D005
R872
C836
D006
FB2602
B
C
Q102
R873
C067
C643
C837
D007
Q103
C068
C644
C838
D008
Q104
JR1100
JR001
C069
C839
D009
JR1101
JR002
R876
C646
JR1102
JR003
R877
C647
FB2607
JR004
R878
D200
DY800
JR005
R879
C649
D201
D202
JR007
D203
JR008
C070
C840
D204
JR009
C071
C841
JR1109
D205
C072
C842
D206
C073
D207
JR200
R880
C650
C844
D208
R881
C845
Q111
D209
R882
C652
C846
R883
C077
C653
C847
R884
C078
C654
C848
JR1110
L100
C079
C849
JR1111
L101
JR012
R886
JR1112
L102
JR013
R887
C657
JR1113
L103
JR014
R888
C658
D210
JR015
R889
D211
L105
JR016
D212
L106
JR017
D213
L107
JR018
C080
C850
D214
JR019
C081
C851
D215
IC001
C082
C852
O
VCC
IC002
C083
C853
D023
IC003
R890
C084
C660
C854
D024
D600
R891
C661
C855
D025
R892
C662
C856
D602
R893
C857
D603
JR020
R894
C858
+
-
D604
R895
C089
C665
C859
D605
R896
C666
R897
JR600
JR024
R898
C668
D608
1
12
IC200
JR601
JR025
R899
C669
L2601
JR602
JR026
JR027
C090
C860
D800
C091
C861
D801
C092
C862
C093
C863
C094
C670
C864
D804
Q900
C095
C865
D805
Q901
C096
C672
C866
Q902
C097
C673
C867
D807
JR800
C098
C674
C868
D614
D808
C099
C675
C869
D615
D617
JR1903
JR1904
C678
D618
JR1905
JR805
C679
D619
JR806
JR807
JR037
JR038
C870
C872
D812
C680
C874
D620
Q910
C875
D621
D815
Q911
IC601
C682
C876
D622
D816
Q912
IC602
C683
C877
D623
D817
I
O
G
IC603
JR040
C878
D624
D818
O
I
IC604
T600
JR041
C685
C879
D819
IC605
JR042
C686
I
O
IC606
L902
T602
JR043
IC607
T603
JR044
T604
JR045
D629
T605
JR046
JR047
D820
5
8
1
4
IC800
JR049
D821
IC801
C882
IC802
C883
D823
IC803
D054
D824
1
2
6
7
IC804
T800
D055
FB101
T801
D056
D826
T802
D057
D633
D827
D058
D828
J200
JR051
D059
D635
D829
J201
D636
J202
D637
D638
D639
D060
D830
D061
D831
D062
D832
JW1683
D063
D833
D064
R100
D065
D066
D067
R103
D068
R104
D069
R106
R107
R108
R109
D070
R300
D071
C1019
R301
D072
R302
R303
D074
R110
R304
D075
R111
R305
D076
R112
R306
R113
R307
R114
R308
R115
R309
R116
R118
R119
R310
R311
R312
R313
R314
R121
R315
R316
FB902
R317
FB903
R319
R126
R127
R128
R320
R322
R323
R324
R131
R326
R902
C1233
R327
R904
R905
R906
R907
R908
R909
C100
R331
C101
C102
R910
C104
THP600
R911
R336
C106
R337
R913
C107
R338
R914
C108
R339
R915
C109
R146
R916
R147
R917
R148
R918
C300
R149
R919
C301
C302
C303
R340
C304
R341
C111
C112
1
CN903
R150
R920
C308
1
5
CN904
R921
C115
C309
1
5
CN905
R152
R922
C116
R153
R923
C117
R154
R924
C118
R155
R925
C119
R926
R927
R928
R929
C311
C312
C313
C120
C314
C316
C317
R930
C318
R355
R931
C319
R356
R932
R933
C320
C321
C322
C323
C324
C900
R361
C131
C325
C901
R362
C132
C902
R363
C133
C903
R364
R940
C328
C904
R941
C135
C905
A001
TP601
C906
A002
TP602
C137
C907
A003
R944
C138
C908
A004
R945
C909
A005
R946
A006
A007
A008
A009
C2601
C2602
C333
C140
C910
C141
C911
C912
C913
C914
A010
F600
C915
A011
C916
A012
R377
C917
C918
R379
C919
A016
A017
A018
A019
R380
C921
C922
C923
C924
R384
R385
C925
R386
Q001
CT131
Q006
Q007
Q008
D100
Q009
R392
JR1006
D102
R393
D103
R394
Q200
R395
CT139
D105
Q201
D106
Q202
R397
D107
R398
Q010
D108
Q204
D109
Q205
Q206
Q013
JR1010
C2631
JR1011
Q016
JR1012
JR1013
L003
JR1014
D110
L004
D111
E
B
Q8009
L005
D112
C2636
JR1016
L006
D113
L007
JR300
L008
JR301
L009
JR302
E
B
Q8010
L201
L010
R989
L011
Q601
L012
L013
B
E
Q605
JR1601
Q606
JR1602
C953
R990
C2648
Q608
R991
C955
D2625
Q609
C956
D2626
Q800
Q801
Q802
E
B
Q803
E
B
Q804
1
2
3
4
PH600
R8000
B
E
Q805
R8001
Q806
R8002
Q807
R8003
Q808
R8004
D900
L600
Q809
R8005
D901
L601
D902
L602
R8007
D903
R8008
D904
R8009
D905
C966
D906
C967
D907
C968
Q810
D908
C969
D909
Q814
R8010
L800
L031
R8011
L032
Q816
R8012
L802
L033
R8013
L803
C970
R8014
D910
L804
C971
L035
R8015
D911
L805
L036
D912
L806
D913
L038
D914
C975
L039
D915
W001
D916
W002
C977
D917
W003
D918
C979
R2645
W005
FB001
R2646
W006
FB002
R2647
W007
FB003
JR1050
L040
FB004
L041
W009
FB005
L042
FB006
L043
FB007
L044
FB008
L045
L046
L047
W010
W011
R001
W016
R002
W017
R003
W018
R004
W019
JR1256
R006
JR1257
D931
D932
R200
R201
PS602
R202
PS603
R203
W024
R010
PS604
R204
FB021
W025
R011
PS605
R205
CF101
W026
R012
W027
R207
W028
R014
R208
VDR600
R015
FB601
FB603
4
1
8
5
4
1
8
5
8
1
4
5
1
128
32
33
64
65
97
1-867-023-42
(1-726-062-42)
R7
1
2
3
4
5
6
7
8
9
10
11
12
13
FBT
V
R
L
DGCT
DGC
DGC
DGCT
GND
U OUT
V OUT
GND
GND
V IN/R
U IN/B
GND
Y IN/G
NS-
NC
NS+
+135V
NC
GND
VM OUT
GND
VM OUT
H+
H+
H-
H-
V-
V+
H1
NC
GND
NC
200V
GND
B INT
B DAT
B CLK
KEY
GND
GND
SP R
GND
SP L
GND
SP
GND
GND
GND
3D
GND
OUT-
GND/3D
AC IN
AC IN
Y OUT
AGC
G
OUT+
B OUT
G OUT
R OUT
G OUT
R OUT
GND
IK
9V
9V
1
6
2
1
Y OUT
V OUT
U OUT/FB
GND
GND
1
5
4
1
H+
+B
200V
H1
GND
-13V
GND
+13V
ABL
30
20
NC
SP L/SP
GND
GND
GND
GND
SP R
1
3
A
A
G
S
A015
R
96
TP04
TP03
TP02
– 87 –
KV-AW21M50/M81/P50
RM-GA002
[VIDEO AMP]
C
– C Board –
[FRONT PANEL]
H
1
– H1 Board –
CN001
S001
S002
S003
S004
S005
S006
S007
R001
R002
R003
R004
R005
R006
R007
SOUND
MODE
MODE
WEGA GATE
VIDEO IN
VOL -
VOL +
PROGRAM -
PROGRAM +
GND
KEY
(1-727-645-12)
1-870-841-12
R2
M
D
D
1
3
GND
1
7
1
5
2
1
8
9
200V
NC
NC
GND
H1
B
G
R
GND
1K
9V
1-867-024-42
(1-726-062-42)
B IN
G IN
R IN
GND
IK
VDD
R OUT
G OUT
B OUT
GND
KR
KG
G1-3
KB
G1-2
H2
H1
G1-1
G2
RCV
G4
1
3
4
5
6
7
8
9
10
11
1
GND
R7
B
A
JW1750
C753
L783
A701
R795
L750
D750
CN703
D756
C787
R757
R756
A705
CN704
IC751
R794
R758
RV750
C781
R781
R773
R763
A702
D754
EY707
R780
L782
C782
C754
R774
R764
A703
EY703
L780
D781
EY701
C751
CN705
D780
R783
R765
A704
EY706
C752
R760
L781
JW1781
CN701
D755
Q701
JW1782
R796
CN706
J752
J751
M
D
D
13
13
D782
R713
R752
R753
R754
R766
R767
R768
R775
R776
R777
R778
R784
R785
R786
C759
C783
C786
C788
C789
C790
– 88 –
KV-AW21M50/M81/P50
RM-GA002
•
Items marked "
∗ " are not stocked since
they are seldom required for routine
ser vice. Some delay should be
anticipated when ordering these items.
ser vice. Some delay should be
anticipated when ordering these items.
The components identified by
shading and mark
shading and mark
! are critical
for safety.
Replace only with part number
specified.
Replace only with part number
specified.
NOTE:
•
Items with no par t number and no
description are not stocked because
they are seldom required for routine
service.
description are not stocked because
they are seldom required for routine
service.
•
The construction parts of an assembled
part are indicated with a collation
number in the remark column.
part are indicated with a collation
number in the remark column.
5-1.
CHASSIS
r : 7-685-648-79
SCREW +BVTP 3
× 12 TYPE2 IT-3
p : 7-685-663-71
SCREW +BVTP 4
× 16 TYPE2 IT-3
SECTION 5
EXPLODED VIEWS
4
1
24
12
8
8
9
10
11
13
14
6
5
16
12
17
18
20
19
16
3
2
15
21
22
25
23
– 89 –
KV-AW21M50/M81/P50
RM-GA002
REF. NO. PART NO.
DESCRIPTION
REMARK
REF. NO. PART NO.
DESCRIPTION
REMARK
1
X-2149-251-2
BEZNET ASSY
2,3,24,25
2
2-681-318-01
BUTTON, POWER
3
4-036-405-11
SPRING, COMPRESSION
4
! 8-738-870-05
PICTURE TUBE A51LPT70X
5
1-452-032-00
MAGNET,DISC
6
! X-2149-945-2 REAR COVER ASSY
7
* 2-656-888-02
HOLDER, HV CABLE COMBI
8
4-072-365-04
SPACER, DY
9
4-074-013-12
PIECE TLH CONVERGENCE
10
! 8-451-505-81
DEFLECTION YOKE Y21RSA-O3
11
* A-1206-135-A MOUNTED PWB (VAR), C
12
4-057-862-11
SCREW, TAPPING 5+CROWN WASHER
13
2-898-129-01
SPRING, EXTENSION
14
! 1-457-409-11
DEGAUSSING COIL
15
!* 2-681-316-02
COVER, BOTTOM
16
1-825-293-41
LOUDSPEAKER (5X9 CM)
17
4-094-690-01
PIECE A(90), CONV. CORRECT
18
* A-1257-645-A COMPLETE PWB, A
19
! 1-453-487-11
TRANSFORMER ASSY FLYBACK
MX-4800//Q5A4
20
1-693-730-11
TUNER
21
! 4-022-115-00
HOLDER, AC CORD
22
! 1-824-968-11
POWER CORD (WITH CONNECTOR)
23
* A-1219-319-A MOUNTED PWB (VAR), H1
24
* 2-681-319-01
GUIDE, LIGHT
25
2-681-317-01
BUTTON, MULTI
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