Sony Trinitron KV-21LT1B, Trinitron KV-21LT1U, Trinitron KV-21LT1E, Trinitron KV-21LT1K, Trinitron KV-21FT2K Service Manual
1
SERVICE MANUAL
FE-2
CHASSIS
MODEL
COMMANDER DEST CHASSIS NO.
KV-21LT1B
RM-887 French SCC-Q54C-A
KV-21LT1E
RM-887 Spanish SCC-Q53C-A
KV-21LT1K
RM-887 OIRT SCC-Q51C-A
KV-21LT1U
RM-887 UK SCC-Q52C-A
MODEL
COMMAN DER DEST CHASSIS NO.
KV-21FT2K
RM-887 OIRT SCC-Q51E-A
RM-889
KV-21LT1
RM-887
KV-21FT2
25 26 27
28
5-2. BLOCK DIAGRAMS (1)
LOWB
541
CN001
J401
(1/2)
79
63
5
7
432
1
5
4
RELAY
SWITCH
Q601
T603
SRT
161517
18
18
16
1
2
15
8
11
12
1
2
IC603
ERROR AMP
PH601
ISOLATOR
+B
D639
RECT
AUDIO
VCC
+B
LOWB
3.3V REG
H-OUT
Q533
STBY
+3.3V
IC608
7
5
IC501
V OUTPUT
3
1
VD+
BOOST
REF
OUT
PIN OUT
Q532
6
5
4
3
2
1
D571,
Q571,574
T511
FBT
FV
ABL
12
341
5
6
13
8
9
11
10
7
V DY
V- DY+
DY ASSY
V- DY-
H DY
H- DY+
H- DY-
V- DY+
V- DY-
H- DY+
H- DY+
TO C BOARD
CN707
H1
200V
TO PICTURE
TUBE
236
5
+-+
-
1
7
IC531
PIN CORRECTION
EW
HP
PROTECT
IN
VP
VD-
41
2
3
T531
HDT
IC609
STANDBY
POWER
HD
D
C
T602
D632
RECT
IC001
MICRO, VIDEO PROCESSOR,
ROM, AUDIO, VIDEO SWITCH
CN601
CN510
VD
VGCH
VS
HP
+B
HV
CN508
XTAL OUT
RED
NVM WP
LED
L AUDIO
TO SPEAKERS
A ( )
POWER SUPPLY, DEFLECTION,
SMALL SIGNAL BOARD,
AUDIO AMPLIFIER
IC601
D514
-15V RECT
VIDEO
L
+5V
STBY
121
3
DGC
DGC
DGC
DGC
CHECK
DGC CHECK
CN603
CN602
POWER
S601
2
1
H- DY-
H- DY-
TO C BOARD
CN706
G2
2
1
IC604
DUAL DC REGULATOR
+8V
D116
D617
D608
LINE FILTER
T601
RELAY
RY601
MAIN RECT
D601
13467
9
CT
VSENSERTTIMERSSOCP
12
VG(G)
Q606
Q607
6
547
3
LOWB
D624
D622
D618
D619
VM VCC
QCP DETECT
Q612, 602
1
4
CN1201
J1200
R AUDIO
64
XTAL IN
48
AUDIO MUTE
5
AUD OUT/CV6520
6
6721 VCC OUT
IC002
REMOTE CONTROL
RECEIVER
+3.3V
STBY
652
3
+-+
-
7
1
+5V STBY
IC201
AUDIO AMP
MUTE
1
IN/INL
10
14
OUT/L
H-DRIVE
Q535
FUNCTION SWITCH
S001 - S006
68
IC401
AV LINK
+5V STBY
69R058
A10
B10
123
4
G0 57
B0
56IK55
GREEN
BLUE
IK
EWD 17
VD-
18
VD+
19
ABL
54
73
TO C BOARD
CN703
TO C BOARD
CN1705
7
CN504
J401
(2/2)
NSC CORRECT
ROT COIL
AGC
SCL
SDA
VIDEO
IC004
SDA6SCL
5
7
WP
71
SCL72SDA36CVBS2/
CVBSY2
2
KEY/CS3AGC
53
B2/UIN
1
MODE1
80
MODE252G2/YIN51R2/VIN46-/C450INSSW240CVBS145-/CVBS4Y465KEY/CS32AUDIO 129AUDIO 242CVBS3
A8
A11
A7
B8
A15
A16
B20
B15
A20
A2
BLUE IN
MODE1
MODE2
GREEN IN
RED IN
C2 IN
BLK
V IN 1
Y/V IN 2
IC003
RESET
BUFFER
Q401,411
A19
TU101
MUTE SW
Q212
AUDIO
AUDIO
VIDEO
STBY
70
2
FB
D513
+15V RECT
5
1
G DRIVE, BKG
Q705, 706
B DRIVE, BKG
Q708, 709
R OUT
Q704
G OUT
Q 707
B OUT
Q710
H2
H1
RV702
H STAT
PICTURE TUBE
5
CN703
R
G
B
H2
CN707
TO A BOARD
CN502
TO A BOARD
T511 (FBT)
H
RCV
1
+200V
R
G
B
H
V
RCV
G2
G
4
G
2
TO A BOARD
CN504
654
R DRIVE, BKG
Q702, 703
1
CN706
TO T511 FBT
G2 1000V
3
CN1801
TO
ROTATION
COIL
1
3
CN1705
TO A BOARD
CN510
3
8
271
IC1801
A
B
C
D
E
F
G
R
S
T
U
V
W
X
Y
Z
H
I
J
K
L
M
N
O
P
Q
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
35
34
33
31
32
30
29
34
35
33
feR
B1TL12-VK
E1TL12-VK
K1TL12-VK
U1TL12-VK
K2TF12-VK
3021CFu0001Fu0001Fu0001Fu0001mm0.5WJ
8221C---- Fu0022
1021NC,GULP
P3ROTCENNOC
,GULP
P3ROTCENNOC
,GULP
P3ROTCENNOC
,GULP
P3ROTCENNOC
,GULP
P4ROTCENNOC
306LHu3.3Hu3.3Hu3.3Hu3.3mm0.5WJ
0021Lmm0.5WJmm0.5WJmm0.5WJmm0.5WJ
−
101UT114FE-FTB104CE-FTB104PE-FTB106UE-FTB104PE-FTB
B
A
34
35
36
A
D
E
F
G
B
C
R
S
T
V
W
X
Y
Z
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
31
32
33
34
35
U
M
N
O
P
Q
H
I
J
K
L
36
37
38
46
PARTS LISTING TABLE OF CONTENTS
Page
A BOARD COMMON Parts List : Parts common to all models listed in this manual .......................................... 4 7
A BOARD VARIANT Parts List : Parts that belong only to the model specified
Model
KV-21LT1 ......................................................................................................... 53
KV-21FT2 ......................................................................................................... 53
C BOARD COMPLETE Parts List : ......................................................................................................... 53
MISCELLANEOUS : ......................................................................................................... 55
ACCESSORIES AND PACKAGING MATERIALS : .................................................................................................. 55
Note : Refer to the designated variant parts list when seeking a part indicated by an asterisk (*)
Parts indicated (#) on the Schematic Diagram are not used in this model and
therefore do not appear in the Parts List.
SECTION 7
ELECTRICAL P ARTS LIST
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