Sony KV-21LS30B Service Manual ▷ View online
22
Memo
23
24
5-1.
BLOCK DIA
GRAMS (1)
LOWB
5
4
1
C
N
001
J4
0
1
(1
/2
)
79
63
5
7
4
3
2
1
5
4
RELAY
SWITC
H
Q6
0
1
T6
0
3
SRT
16
15
17
18
18
16
1
2
15
8
11
12
IC6
0
2
E
RROR A
M
P
1
2
PH60
1
ISOLAT
O
R
+B
D63
8
RE
C
T
AUD
IO
VC
C
+B
LOWB
3.3V
R
E
G
H-O
U
T
Q5
3
3
STBY
+3.
3
V
IC6
0
8
7
5
IC5
0
1
V O
U
TPU
T
3
1
VD+
BOO
S
T
REF
OU
T
PI
N O
U
T
Q5
3
2
6
5
4
3
2
1
D
5
71,
Q571
,5
7
4
T5
1
1
FBT
FV
ABL
12
3
4
1
5
6
13
8
9
11
10
7
V DY
V- DY+
DY A
SSY
V- D
Y
-
H DY
H- DY+
H- DY-
V- DY+
V- D
Y
-
H- DY+
H- DY+
T
O
C BO
ARD
C
N
707
H1
20
0
V
T
O
PI
CT
URE
TU
B
E
2
3
6
5
+
-
+
-
1
7
IC5
3
1
P
IN CORRE
CT
IO
N
EW
HP
PROTE
C
T
IN
VP
VD
-
41
2
3
T5
3
1
HD
T
IC6
0
9
STAND
B
Y
POW
E
R
HD
D
C
T6
0
2
D63
2
RE
C
T
IC
001
M
ICRO
, VI
DEO
PRO
CESSO
R,
RO
M
, AUDI
O
,
VI
DEO
SWI
T
C
H
C
N
601
C
N
510
VD
VG
C
H
VS
HP
+B
HV
C
N
508
XTAL OUT
RE
D
NVM WP
LE
D
L AUDIO
TO SPEAKERS
A
(
)
PO
WER SUPPL
Y,
DEF
L
ECT
IO
N,
SM
AL
L
SI
G
N
AL
BO
ARD,
AUDI
O
AM
PL
IF
IE
R
IC6
0
1
D51
4
-15V RECT
VIDEO
L
+5
V
STBY
1
2
1
3
DG
C
DG
C
DG
C
DG
C
CHE
C
K
DGC CHE
CK
C
N
603
C
N
602
POW
E
R
S6
0
1
2
1
H- DY-
H- DY-
T
O
C BO
ARD
C
N
706
G2
IC6
0
4
DUA
L
DC RE
GUL
A
T
OR
2
1
+8
V
D60
8
LIN
E
FILTE
R
T
601
RELAY
RY6
0
1
M
A
IN
RECT
D60
1
1
3
4
6
7
9
CT
VSENSE
RT
TIMER
SS
OC
P
12
VG(
G
)
Q6
0
6
Q6
0
7
6
5
4
7
3
LOWB
D62
4
D62
2
D61
8
D61
9
VM VCC
Q
C
P DET
ECT
Q612, 602
1
4
CN12
0
1
J
1
200
R AUDIO
64
XTAL IN
48
AUDIO MUTE
5
A
UD O
U
T
/CV
6520
6
67
2
1V
C
C
O
U
T
IC
002
REM
O
T
E CO
NT
RO
L
RECEIVER
+3.
3
V
STBY
6
5
2
3
+
-
+
-
7
1
+
5
V STBY
IC2
0
1
A
UDI
O A
M
P
MUTE
1
IN/INL
10
14
OUT/L
H-DRIV
E
Q5
3
5
F
UNCT
IO
N SWI
T
C
H
S
001 -
S
006
68
IC4
0
1
AV LINK
+
5
V STBY
69
R0
58
A1
0
B1
0
1
2
3
4
G0
57
B0
56
IK
55
GRE
E
N
BLUE
IK
EWD
17
VD-
18
VD
+
19
AB
L
54
73
T
O
C BO
ARD
C
N
703
T
O
C BO
ARD
CN17
0
5
7
C
N
504
J4
0
1
(2
/2
)
NS
C CORRE
CT
ROT COIL
AGC
SC
L
SDA
VIDEO
IC
004
SDA
6
SCL
5
7
WP
71
SC
L
72
SDA
36
CVBS
2
/
CVBS
Y
2
2
KEY/CS
3
AGC
53
B2/U
IN
1
MODE
1
80
MODE
2
52
G2/YIN
51
R2/V
IN
46
-/
C
4
50
INSSW
2
40
CVB
S
1
45
-/CVBS4
Y
4
65
KEY/CS
32
AUDIO 1
29
AUDIO 2
42
CVB
S
3
A8
A1
1
A7
B8
A1
5
A1
6
B2
0
B1
5
A2
0
A2
BL
U
E
I
N
MODE
1
MODE
2
GREEN IN
RED IN
C2 I
N
BL
K
V IN 1
Y/
V I
N
2
IC
003
RESET
BUFF
E
R
Q401
,4
1
1
A1
9
T
U
101
MU
TE
S
W
Q2
1
2
AUDIO
AUDIO
VIDEO
STBY
70
2
FB
D51
3
+15V RECT
5
1
D62
5
5-1.
BLOCK DIA
GRAMS (2)
25
26
G
DRI
VE,
BKG
Q705, 706
B DRIVE, BKG
Q708, 709
R O
U
T
Q7
0
4
G OU
T
Q 707
B O
U
T
Q7
1
0
H1
RV70
2
H ST
AT
P
ICT
URE
T
U
B
E
C
N
703
R
G
B
CUT
OF
F
T
O
BO
ARD
T511 (FB
T)
H
R
C
V
R
G
B
H
V
RC
V
G2
G
4
G
2
G2
(1000
V
)
RV70
1
SCREEN
T
O
A
BO
ARD
C
N
504
7
6
5
2
R DRI
VE,
BKG
Q702, 703
VM
AM
P
Q17
0
1
VM AMP BUFFER
Q
1704,
1705
Q
1707,
1709
VM OUT
Q
1711,
1717
N
E
C
K
ASSY
VM
CN17
0
3
VM
C
N
1
705
13
5
V
+9
V
1
3
GN
D
VM
C
N
1
801
ROT
-
ROT +
+
-
IC
1
801
R
O
TA
TION
A
M
P
6
7
5
+
-
2
6
3
TO
ROTAT
IO
N
COI
L
TO
A BOARD
CVM (
)
RG
B O
U
T
,
VEL
O
C
IT
Y M
O
DUL
AT
IO
N,
DYNAM
IC
F
O
CUS
NS
CORRE
CT
6
1
3
1
5-2. CIRCUIT BO
ARD LOCA
TION
5-3. SCHEMA
TIC DIA
GRAMS AND
PRINTED WIRING BO
ARDS
Note :
•
A
ll
ca
pa
cit
ors
are
in
µ
F
unl
es
s o
the
rwise
n
o
te
d.
•
p
F
: µ
µ
F
50WV
or less are not
indicated e
x
cept f
o
r
el
ec
troly
tic
ty
pe
s
.
•
Ind
ic
ati
on
of
res
ist
anc
e
, wh
ich
d
oes
n
o
t h
a
v
e
on
e
fo
r
ra
ting electr
ical po
w
e
r,
is as
fo
llo
ws
.
Pitch :
5mm
Ele
ctr
ic
al
po
w
e
r r
a
ting
: 1
/4
W
•
C
hip resistors are 1/10W
•
All resistors are in ohms
.
k
= 1
000
oh
ms
, M
= 1
0
0
0,0
00
ohm
s
•
: nonflammab
le resistor
.
•
: fusib
le resistor
.
•
: inter
nal component.
•
: p
a
n
e
l
des
ig
na
tion
o
r
ad
jus
tm
ent
f
o
r
repa
ir
.
•
All v
a
ri
ab
le and adjust
ab
le resistors ha
v
e
ch
ar
a
c
te
ri
sti
c
cur
v
e
B
, un
les
s
oth
erwis
e n
o
te
d.
•
A
ll
v
o
lta
ges
a
re in
V
o
lts
.
•
R
eadings are tak
en with a 10Mohm digital m
u
timeter
.
•
R
e
a
d
ing
s a
re tak
e
n
with a
co
lo
r ba
r in
pu
t sign
a
l.
•
V
oltage v
a
ri
ations ma
y be noted due to
nor
mal production
to
le
ren
ce
s
.
•:
B
+
b
u
s
.
•
: B
- b
u
s
.
•
: RF
signal path.
•
: ea
rt
h
-
g
rou
nd
.
•
: e
a
rt
h -
ch
as
sis
.
Ref
erence Inf
ormation
RESIS
T
O
R
RN
: MET
AL FILM
RC
: SOLI
D
FPRD
: NON FLA
MMABLE CARBON
FU
SE
: NON FLA
MMABLE F
U
SI
BLE
RS
: NON FLA
MMABLE MET
AL O
X
ID
E
RB
: NON FLA
MMABLE CEMENT
RW
: NON FLA
MMABLE WIREW
OUND
: ADJU
STMENT
R
E
SIST
O
R
COIL
L
F
-8L
: MICR
O IN
DUCT
O
R
CAP
A
CIT
OR
TA
: T
A
NT
ALUM
PS
: STY
R
O
L
PP
: POL
YPR
OPYLENE
PT
: MYLAR
MPS
: MET
ALIZED POL
YESTER
MPP
: MET
ALIZED POL
YPR
OPYLENE
ALB
: BI
POLAR
AL
T
: HIGH TEMPERA
TURE
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.
Note :
The components identified by shading
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
C
A
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