KLV-20SR3 - Sony TV Service Manual (repair manual)

klv-20sr3 service manual
Model
KLV-20SR3
Pages
54
Size
24.57 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-20sr3.pdf
Date

Read Sony KLV-20SR3 Service Manual online

- 1 -
WA1
RM-Y1108
SERVICE MANUAL
WA1 
 
CHASSIS
MODEL
                      COMMANDER
          DEST
KLV-20SR3     
    RM-Y1108
       AEP
MODEL
                     COMMANDER
          DEST
RM-Y1108
FLAT PANEL COLOR TV
KLV-20SR3
- 2 -
WA1
RM-Y1108
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Caution ................................................................
3
Specifications ......................................................
4
Connectors ..........................................................
5
Self Diagnosis .....................................................
6
1. GENERAL ...................................................................
7
2. DISASSEMBLY
2-1.
Rear Cabinet Assembly Removal .......................
18
2-2.
Stand Removal ....................................................
18
2-3.
Rear Cover Removal ...........................................
19
2-4.
Speaker Removal ................................................
19
2-5.
A Board Removal ...............................................
20
2-6.
G Board Removal ...............................................
20
2-7.
H1 Board Removal .............................................
21
2-8.
H2 Board Removal .............................................
21
2-9.
H3 Board Removal .............................................
22
2-10. H5 Board Removal .............................................
22
2-11. LCD Bracket Removal ........................................
23
2-12. LCD Removal .....................................................
23
3. SET-UP ADJUSTMENTS
3-1.
Signal Adjustment  .............................................
24
  3-1-1.  Pal auto adjustment (CVBS) ...........................
24
  3-1-2.  Pal auto adjustment (RGB) ..............................
24
3-2.
White Balance Adjustment  .................................
24
  3-2-1.  White Balance adjustment (H/L) .....................
24
  3-2-2.  White Balance adjustment (C/O) .....................
24
4. DIAGRAMS
4-1.
Block Diagrams (1) ............................................
25
Block Diagrams (2) ............................................
26
4-2.
Circuit Board Location ........................................
26
4-3.
Schematic Diagrams and Printed Wiring
Boards .................................................................
26
A Board Schematic Diagram ..............................
27
A Printed Wiring Board   ....................................
30
G Board Schematic Diagram ..............................
32
G Printed Wiring Board   ....................................
33
H1 Board Schematic Diagram ............................
34
H1 Printed Wiring Board   ..................................
35
H2 Board Schematic Diagram ............................
34
H2 Printed Wiring Board   ..................................
35
H3 Schematic Diagram .......................................
36
H3 Printed Wiring Board   ..................................
37
H5 Schematic Diagram .......................................
36
H5 Printed Wiring Board   ..................................
37
4-4.
Semiconductors ..................................................
38
5. EXPLODED  VIEWS
5-1.
Front Cabinet Assy and Speakers ......................
40
5-2.
Rear Cabinet Assy and Chassis ..........................
41
6. ELECTRICAL  PARTS  LIST ..................................     42 
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
  
 
 ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.
- 3 -
WA1
RM-Y1108
The circuit boards listed below [Table 1] used in these models
may have been processed using Lead Free Solder. The boards are
identified by the LF logo located close to the board designation
e.g. F1, H1 etc [ see examples ]. The servicing of these boards
requires special precautions to be taken as outlined below.
Table 1
CAUTION
Lead Free Soldered Boards
example 1
example 2
It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is
available under the following part numbers :
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This
requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
For more information on the use of Lead Free Solder, please refer to  http://www.sony-training.com
r
e
b
m
u
n
t
r
a
P
r
e
t
e
m
a
i
D
s
k
r
a
m
e
R
9
1
-
5
0
0
-
0
4
6
-
7
m
m
3
.
0
g
K
5
2
.
0
0
2
-
5
0
0
-
0
4
6
-
7
m
m
4
.
0
g
K
0
5
.
0
1
2
-
5
0
0
-
0
4
6
-
7
m
m
5
.
0
g
K
0
5
.
0
2
2
-
5
0
0
-
0
4
6
-
7
m
m
6
.
0
g
K
5
2
.
0
3
2
-
5
0
0
-
0
4
6
-
7
m
m
8
.
0
g
K
0
0
.
1
4
2
-
5
0
0
-
0
4
6
-
7
m
m
0
.
1
g
K
0
0
.
1
5
2
-
5
0
0
-
0
4
6
-
7
m
m
2
.
1
g
K
0
0
.
1
6
2
-
5
0
0
-
0
4
6
-
7
m
m
6
.
1
g
K
0
0
.
1
d
r
a
o
B
n
o
i
t
c
n
u
F
A
1
t
r
a
c
S
,
r
e
d
o
c
e
D
a
m
o
r
h
C
,
o
i
d
u
A
,
r
e
n
u
T
G
y
l
p
p
u
S
r
e
w
o
P
1
H
s
n
o
t
t
u
B
l
o
r
t
n
o
C
2
H
t
u
p
t
u
O
P
H
,
t
u
p
n
I
t
n
o
r
F
3
H
2
t
r
a
c
S
5
H
s
'
D
E
L
&
r
e
v
i
e
c
e
R
R
I
- 4 -
WA1
RM-Y1108
L
E
D
O
M
M
E
T
I
m
e
t
s
y
S
n
o
i
s
i
v
e
l
e
T
m
e
t
s
y
S
o
e
r
e
t
S
e
g
a
r
e
v
o
C
l
e
n
n
a
h
C
m
e
t
s
y
S
r
o
l
o
C
P
E
A
L
,
I
,
K
/
D
,
H
/
G
/
B
M
A
C
I
N
/
N
A
M
R
E
G
o
e
r
e
t
S
Q
-
B
,
0
1
F
-
2
0
F
,
3
0
S
-
1
0
S
,
2
1
R
-
1
R
,
2
1
-
2
E
:
F
H
V
9
6
R
-
1
2
R
,
9
6
B
-
1
2
B
,
9
6
F
-
1
2
F
,
9
6
-
1
2
E
:
F
H
U
0
2
S
-
1
0
S
:
V
T
E
L
B
A
C
1
4
S
-
1
2
S
:
R
E
P
Y
H
M
A
C
E
S
,
L
A
P
3
4
.
4
C
S
T
N
,
8
5
.
3
C
S
T
N
)
N
I
O
E
D
I
V
(
e
m
a
N
l
e
d
o
M
m
e
t
I
3
R
S
0
2
-
V
L
K
P
A
P
F
F
O
T
A
P
F
F
O
y
t
i
r
o
i
r
P
B
G
R
N
O
C
R
D
F
F
O
1
t
r
a
c
S
N
O
2
t
r
a
c
S
N
O
)
3
(
n
i
t
n
o
r
F
N
O
r
o
t
c
e
j
o
r
P
F
F
O
G
/
B
m
r
o
N
N
O
I
m
r
o
N
N
O
K
/
D
m
r
o
N
N
O
S
U
A
m
r
o
N
F
F
O
L
m
r
o
N
N
O
T
A
S
m
r
o
N
F
F
O
M
m
r
o
N
F
F
O
t
x
e
t
e
l
e
T
N
O
o
e
r
e
t
S
m
a
c
i
N
N
O
l
e
n
a
P
t
a
l
F
)
y
a
l
p
s
i
D
l
a
t
s
y
r
C
d
i
u
q
i
L
(
D
C
L
d
e
r
u
s
a
e
m
m
c
1
5
.
x
o
r
p
p
a
(
s
e
h
c
n
i
0
2
.
)
y
ll
a
n
o
g
a
i
d
t
u
p
t
u
o
d
n
u
o
S
r
e
k
a
e
p
s
t
f
e
L
d
n
a
t
h
g
i
R
W
3
s
n
o
i
t
a
c
i
f
i
c
e
p
S
l
a
r
e
n
e
G
]
R
A
E
R
[
s
l
a
n
i
m
r
e
T
t
u
p
t
u
O
/
t
u
p
n
I
s
t
n
e
m
e
r
i
u
q
e
R
r
e
w
o
P
V
0
4
2
-
0
2
2
r
o
t
c
e
n
n
o
c
o
r
u
E
n
i
p
-
1
2
:
1
)
d
r
a
d
n
a
t
s
C
E
L
E
N
E
C
(
.
s
l
a
n
g
i
s
o
e
d
i
V
d
n
a
o
i
d
u
A
r
o
f
s
t
u
p
n
I
.
B
G
R
r
o
f
s
t
u
p
n
I
o
i
d
u
A
d
n
a
o
e
d
i
V
V
T
f
o
s
t
u
p
t
u
O
.
s
l
a
n
g
i
s
n
o
i
t
p
m
u
s
n
o
C
r
e
w
o
P
W
5
.
0
/
W
5
6
r
o
t
c
e
n
n
o
c
o
r
u
E
n
i
p
-
1
2
:
2
.
s
l
a
n
g
i
s
o
e
d
i
V
d
n
a
o
i
d
u
A
r
o
f
s
t
u
p
n
I
.
o
e
d
i
V
S
r
o
f
s
t
u
p
n
I
.
s
l
a
n
g
i
s
o
i
d
u
A
d
n
a
o
e
d
i
V
V
T
f
o
s
t
u
p
t
u
O
.
)
e
l
b
a
t
c
e
l
e
s
(
.
e
c
a
f
r
e
t
n
i
k
n
il
t
r
a
m
S
s
n
o
i
s
n
e
m
i
D
m
m
0
5
2
x
9
0
5
x
4
0
5
x
o
r
p
p
A
t
h
g
i
e
W
g
K
9
s
k
c
a
J
o
n
o
h
P
s
l
a
n
g
i
s
o
i
d
u
a
r
o
f
t
u
p
t
u
O
e
l
b
a
i
r
a
V
s
e
i
r
o
s
s
e
c
c
A
d
e
il
p
p
u
S
)
1
(
r
e
d
n
a
m
m
o
C
e
t
o
m
e
R
8
0
1
1
Y
-
M
R
)
2
(
y
r
e
t
t
a
b
6
R
d
e
t
a
n
g
i
s
e
d
C
E
I
)
1
(
e
l
b
a
C
)
6
-
C
e
p
y
t
(
s
n
i
a
M
)
1
(
e
l
b
a
C
)
F
B
e
p
y
t
(
s
n
i
a
M
]
E
D
I
S
[
s
l
a
n
i
m
r
e
T
t
u
p
t
u
O
/
t
u
p
n
I
s
e
r
u
t
a
e
F
r
e
h
t
O
e
r
u
t
c
i
P
,
r
e
m
i
T
p
e
e
l
S
,
k
n
il
t
r
a
m
S
,
t
x
e
t
e
l
e
T
.
n
o
i
t
c
e
t
e
d
o
t
u
a
m
e
t
s
y
s
V
T
,
e
z
e
e
r
F
k
c
a
j
e
n
o
h
p
d
a
e
H
k
c
a
j
i
n
i
m
o
e
r
e
t
s
l
o
r
t
n
o
C
d
e
r
a
r
f
n
I
:
m
e
t
s
y
S
l
o
r
t
n
o
C
e
t
o
m
e
R
s
t
u
p
n
i
o
i
d
u
A
s
k
c
a
j
o
n
o
h
p
s
t
n
e
m
e
r
i
u
q
e
r
r
e
w
o
P
c
d
V
3
n
o
i
t
a
n
g
i
s
e
d
C
E
I
s
e
i
r
e
t
t
a
b
2
)
A
A
e
z
i
s
(
6
R
s
t
u
p
n
i
o
e
d
i
V
s
k
c
a
j
o
n
o
h
p
t
u
p
n
i
o
e
d
i
V
S
N
I
D
i
n
i
m
n
i
p
4
.
e
c
i
t
o
n
t
u
o
h
t
i
w
e
g
n
a
h
c
o
t
t
c
e
j
b
u
s
e
r
a
s
n
o
i
t
a
c
i
f
i
c
e
p
s
d
n
a
n
g
i
s
e
D
Page of 54
Display

Download Sony KLV-20SR3 Service Manual (Repair Manual)

Here you can read online and download Sony KLV-20SR3 Service Manual in PDF. KLV-20SR3 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KLV-20SR3 TV. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.