Sony KV-G21MW3 Service Manual ▷ View online
– 30 –
– 31 –
– 32 –
– 29 –
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
A
1
2
3
4
5
6
7
8
9
10
11
12
13
B
C
D
E
F
G
H
I
J
[SYSTEM CONTROLLER, Y/C JUNGLE, DEFLECTION,
TUVIF, FRONT AMP, POWER SUPPLY]
TUVIF, FRONT AMP, POWER SUPPLY]
– A Board –
A
PRINTED WIRING BOARD
A BOARD
IC
IC001
D-11
IC002
E-10
IC003
E-10
IC004
I-13
IC005
E-10
IC100
E-7
IC102
E-7
IC201
B-7
IC203
B-10
IC300
B-4
IC351
D-8
IC354
D-7
IC401
B-7
IC521
E-8
IC551
J-6
IC601
J-8
IC602
H-7
IC603
H-7
IC801
G-6
IC1210 A-2
IC1211 B-3
IC1211 B-3
Q001
F-7
Q002
C-10
Q030
C-12
Q031
C-8
Q108
D-2
Q109
E-12
Q110
E-3
Q201
B-10
Q202
C-9
Q207
B-10
Q208
B-10
Q209
B-9
Q210
B-9
Q212
B-11
Q300
C-10
Q301
C-7
Q302
D-7
Q303
D-7
Q401
D-2
Q402
D-4
Q403
E-4
Q404
E-4
Q405
C-6
Q406
B-7
Q407
B-6
Q408
C-7
Q409
C-6
Q410
B-6
Q411
C-6
Q412
C-5
Q413
B-5
Q414
C-5
Q415
B-5
Q416
B-5
Q417
B-6
Q418
B-5
Q561
I-6
Q601
G-11
Q801
D-2
Q802
F-1
TRANSISTOR
Q821
E-6
Q902
D-10
Q903
D-11
Q1201
A-3
Q1202
A-3
Q1203
A-2
Q1204
B-2
Q1205
B-3
Q1206
A-2
Q1207
A-2
Q1208
B-2
Q1209
C-4
Q1264
C-1
Q1265
C-1
Q1513
G-6
DIODE
D001
D-9
D002
C-12
D003
C-10
D004
E-12
D005
E-8
D006
H-13
D007
E-10
D008
H-13
D101
C-9
D102
C-9
D103
D-1
D200
A-10
D201
B-9
D202
C-9
D251
B-8
D252
F-11
D253
C-9
D300
D-4
D301
D-8
D302
C-8
D304
C-8
D305
D-7
D306
E-6
D307
D-5
D308
C-10
D309
D-6
D310
D-9
D311
D-9
D312
C-5
D315
E-5
D351
E-8
D399
E-5
D401
E-4
D402
C-5
D403
C-9
D513
G-6
D551
J-5
D561
G-5
D562
F-6
D581
H-5
D582
I-5
D591
I-5
D600
F-9
D601
H-12
D602
G-11
D603
G-11
D604
G-7
D605
G-8
D606
G-8
D607
I-8
D609
J-9
D610
H-8
D611
I-7
D613
E-9
D614
E-10
D615
E-10
D801
F-2
D802
F-2
D803
D-9
D820
G-6
D821
G-7
D851
I-4
D852
H-4
D853
J-3
D855
J-4
D857
F-3
D858
F-4
D860
E-2
D901
H-13
D1201
A-2
D1202
B-1
D1203
B-2
D1204
A-2
D1205
C-1
D1206
C-2
D1207
B-2
D1208
B-2
D1209
B-3
D1504
G-6
D1505
G-6
5.0Vp-p
2.7Vp-p
PAL/SECAM
NTSC
PAL/SECAM
2.9Vp-p (H)
NTSC
PAL/SECAM
NTSC
2.3Vp-p (H)
2.7Vp-p (H)
NTSC
SECAM
PAL
2.4Vp-p (H)
2.2Vp-p (H)
2.2Vp-p (H)
PAL
SECAM
NTSC
0.9Vp-p (H)
1.3Vp-p (H)
1.0Vp-p (H)
1.5Vp-p (V)
1030Vp-p
149Vp-p
PAL
0.7Vp-p (H)
PAL
NTSC
SECAM
0.5Vp-p (H)
1.3Vp-p (H)
0.7Vp-p (H)
SECAM
NTSC
PAL/SECAM
0.6Vp-p (H)
1.0Vp-p (H)
SECAM :
PAL : 1.4Vp-p (H)
1.3Vp-p (H)
SECAM
PAL
NTSC
1.5Vp-p (H)
1.2Vp-p (H)
NTSC
SECAM
PAL
1.3Vp-p (H)
0.7Vp-p (H)
0.7Vp-p (H)
PAL
SECAM
NTSC
1.0Vp-p (H)
0.6Vp-p (H)
0.5Vp-p (H)
1
2
3
3
3
4
4
4
5
5
6
6
7
7
8
8
9
9
10
11
10
11
10
11
12
12
12
13
13
13
14
15
16
1.1Vp-p (H)
2.5Vp-p (H)
2.8Vp-p (H)
2.6Vp-p (H)
PAL :
SECAM :
SECAM :
PAL : 2.7Vp-p (H)
2.9Vp-p (H)
6
1.0Vp-p (H)
NTSC
A BOARD WAVEFORMS
SIGNAL
CLAMPING
LINE
MEMORY
SAMPLE-
AND-
HOLD
LP
±
(R-Y)
16
11
±
(R-Y)
±
(B-Y)
12
14
±
(B-Y)
LP
HOLD
AND-
SAMPLE-
MEMORY
LINE
CLAMPING
SIGNAL
pre-amplifiers
addition
stages
output
buffers
colour-difference
output signals
SANDCASTLE
DETECTOR
DETECTOR
PHASE
FREQUENCY
9
analog supply
5
colour-difference
input signals
V
P1
sandcastle
pulse input
pulse input
DIVIDER
BY 192
LP
5MHz
CCO
DIVIDER
BY 2
1
digital supply
10
GND1
3
4, 8
GND2
2
n.c.
n.c.
6
n.c.
13
n.c.
15
3MHz shifting clock
7
i.c.
TDA4665
P2
V
AGC FOR IF
· TUNER
54
53
TUNER
T.D.P.
· DEMODULATOR
VIF AMPLIFIER
49
48
AFC · S/H
VIDEO AMPL.
POL
VIDEO IDENT
IDENT
AFC
POL
VIDEO MUTE
MUTE
SW
CVBS-SWITCH
13
17
SOUND
TRAP
6
SVHS-SWITCH
SW
10
Chr
CVBS
Y
11
S-VHS
38
CVBS OUT
TRAP
BAND-
PASS
PAL / NTSC
DECODER
4.4
3.6
36
35
34
SECAM REF
.
33
16
HUE
FILTER
TUNING
30 29
R-Y
B-Y
REF
DELAY ·
PEAKING
G-Y MATRIX ·
SAT. CONTROL
R-Y
B-Y
32 31
TDA 4661
SAT
OUT
IN
Y
28
27
· OUTPUT
RGB-MATRIX
26
BL
25
B
24
G
· SWITCH
R
23
RGB-INPUT
21
20
19
R
G
B
22
BEAM DUPR.
BACK-
STABILISER
CONTR
BRI
WHITE P
.
BL. CURRENT
CURRENT
18
VERTICAL
GEOMETRY
51
52
46
47
V-OUT POS.
V-OUT NEG.
EW-
GEOMETRY
45
50
EW-DRIVE
EHT
H/V DIVIDER
SYNC SEP.
· 1st LOOP
SEPARATOR
VERT. SYNC
VCO ·
CONTROL
· HOR. OUT
2nd LOOP
42
41
39
40
HOR. DRIVE
BV
44 14
9
5
12 37
12C-BUS
TRANSCEIVER
7
8
SCL
SDA
CONTROL DAC 's
17 x 6-BIT 's
2 x 4-BIT 's
IF-IN
4
3
REF
VOLUME
SWITCH
AUDIO
PRE-AMPL
FILTER
SIF-IN
1
15
2
55 56
OUTPUT
SOUND
EXT AUDIO IN
IC300 TDA46657-T
IC351 TDA8375A
NO TE:
The circuit indicated at left contains high voltage of over
600 Vp-p. Please pay attention when inspecting or repair-
ing it to prevent an electric shock.
The circuit indicated at left contains high voltage of over
600 Vp-p. Please pay attention when inspecting or repair-
ing it to prevent an electric shock.
– 38 –
– 39 –
– 37 –
– 40 –
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
B
C
D
E
F
G
H
I
J
K
L
M
N
O
(2) Schematic Diagram of C Board
Schematic diagram
C
board
/
Schematic diagram
?
A
board
PAL/SECAM
22Vp-p (H)
SECAM : 91Vp-p (H)
NTSC
PAL/SECAM
87Vp-p (H)
PAL/SECAM
NTSC
82Vp-p (H)
NTSC
99Vp-p (H)
PAL : 93Vp-p (H)
4
4
3
3
2
2
1
84Vp-p (H)
PAL : 92Vp-p (H)
SECAM : 95Vp-p (H)
C BOARD WAVEFORMS
– C Board –
C
[RGB OUT]
PRINTED WIRING BOARD
H
KG
G2
CV
KR G1
G4 HV
KB
1
1
2
3
4
1
2
3
4
5
6
1
3
5
6
7
8
9
10
11
12
13
G2
G1-1
H1
H2
G1-2
KB
KG
KR
G1-3
G4
CV
D716
D
7
1
0
R738
R739
R740
C708
C709
C710
D
7
1
1
D
7
1
2
C716
C704
C701
R703
R720
R724
L701
CN701
L702
L704
L706
CN704
D701
D702
D703
D707
D708
D709
D717
J701
C702
R734
R722
R713
R711
CN703
L703
L705
L707
C737
R760
R710
C736
C746
R
7
6
1
R
7
6
2
R725
R755
R726
R756
R729
R727
R757
R730
R712
R714
C703
Q706
Q709
Q705
Q708
Q704
Q707
Q710
Q711
Q712
R705
R723
R721
R719
R728
R701
RV701
R702
R715
C714
R733
C713
R732
C712
R731
470p
B
470p
B
470p
B
1S
S
119
1SS119
100
100
100
1
S
S
1
1
9
1
S
S
1
1
9
100
0.022
400V
:PP
0.0047
2kV
E
100k
1/2W
1/2W
1k
:FPRD
1k
:FPRD
:EL0607
4P
WHT
:MINI
JW(5)
JW(5)
JW(5)
TAB(CONTACT)
1SS119
1SS119
1SS119
1SS119
1SS119
1SS119
RD9.1ESB
SOCKET
0.001
100
1/2W
1k
:FPRD
8.2k
1/2W
1/2W
8.2k
1/2W
1/2W
6P
WHT
:S-MICRO
JW(5.0mm)
JW(5.0mm)
JW(5.0mm)
470p
JW(5MM)
6.8k
3W
:RS
470p
470p
J
W
(5
M
M
)
JW
(5
M
M
)
1.5k
1.2k
1.5k
1.2k
180
1.5k
1.2k
180
6.8k
3W
:RS
6.8k
3W
:RS
4.7
250V
2SC2611
R AMP
2SA1091
IK LIMIT
2SC2611
G AMP
2SA1091
IK LIMIT
2SC2611
B AMP
2SA1091
IK LIMIT
2SC2785
B DRIVE
B DRIVE
2SC2785
G DRIVE
G DRIVE
2SC2785
R DRIVE
R DRIVE
2.2
3W
:RS
270k
:RN
680k
:RN
300k
:RN
150
#
#
#
6.8k
1/2W
1/2W
680
33
680
33
680
33
1000V
200V
FOCUS
G2
FV
GND
GND
H1
TO A BOARD
IK
GND
TO A BOARD
CN103
9V
B IN
G IN
R IN
CN851
B-SSS10612-ME.-C..G21
8.5
2.6
2.1
4
2
3
1
200V
7.9
1
3
6
.5
139.8
137.3
9.0
8.6
131.7
132.1
9.0
8.5
131.3
133.1
8.5
131.5
9.0
8.5
2.7
2.3
8.5
2.6
2.3
9V
SCREEN
MIN-MAX
MIN-MAX
220-756
134.0
B
B
G
R
R
G
TO A BOARD FBT
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
– 42 –
– 41 –
TRANSISTOR
IC
DIODE
5-4. SEMICONDUCTORS
D4SB60L
CATHODE
ANODE
DINL20-TA
EL1Z
EGP20G
NNCD8.2A-T1
NNCD9.1A-T1
EL1Z
EGP20G
NNCD8.2A-T1
NNCD9.1A-T1
CATHODE
ANODE
ERC06-15S
S3L20UF4
S3L20UF4
CATHODE
ANODE
HZS9.1NB2
RD2.2ES-B2
RD5.1ES-B1
RD4.7ESB2
RD5.6ESB2
1SS119-25
RD2.2ES-B2
RD5.1ES-B1
RD4.7ESB2
RD5.6ESB2
1SS119-25
CATHODE
ANODE
DTZ9-1
MA113-TX
MA113-TX
CATHODE
ANODE
RU4DS
DA204K
3
1
2
1
3
2
E
B
C
UN2211
UN2213
UN2216
2SA1162-G
2SD601A-Q
UN2213
UN2216
2SA1162-G
2SD601A-Q
E C
B
LETTER SIDE
2SC2785-HFE
2SC2410SN
2SC2410SN
E C B
2SA1091-0
B
C
E
2SD2012
E
LETTER SIDE
C B
2SC2611
1
TOP VIEW
Dual In-line Package
Pin 6~98
Pin 6~98
CXP85220A-058S (64PIN)
CXP85220A-060S (64PIN)
ST24C04FB6 (8 PIN)
TDA4665T/V5-118
TDA8375A
CXP85220A-060S (64PIN)
ST24C04FB6 (8 PIN)
TDA4665T/V5-118
TDA8375A
Single In -line Package
Pin 6~98
Pin 6~98
1
TOP VIEW
TDA8375T/N3 (20PIN)
µPC4558G2 (8PIN)
µPC4558G2 (8PIN)
L78LR05D-MA
12
34
5 6
7
LA7830
SE-115
µPC574J
ANODE
CATHODE
1
n
TA8248K
MA77
ANODE
CATHODE
NJM2234L
Zig-zag In -line Package
Pin 6~99
Pin 6~99
MARKING SIDE VIEW
1
LA7910
1
2
3
PQ09RD08
CATHODE
ANODE
(GRN)
ANODE
(GRN)
LED
2SD1878-CA
1
2
3
2
3
1
4
SBX3081-01(30)
STR-S60707N
Zig-zag In -line Package
Pin 6~99
Pin 6~99
MARKING SIDE VIEW
1
SPB-26MVWF
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