Sony klv 20sr3 schematic
WA1
RM-Y1108
SERVICE MANUAL
MODEL
KLV-20SR3
COMMANDER DEST
RM-Y1108 AEP
MODEL
WA1
COMMANDER DEST
CHASSIS
KLV-20SR3
- 1 -
RM-Y1108
FLAT PANEL COLOR TV
4-1. BLOCK DIA GRAMS (1)
CN3703
H3 ( )
SCART 2
24
RF-SW
22
SW MONITOR
20
C INPUT
18
Y INPUT
Y/C SWITCH
5
VIDEO SWITCH
13
SC2-OUT-R-H3
9
11
2
1
MODE 2
3
TO A BOARD
CN3621
4
15
10
9
11
13
12
1
Y FRO NT
BUFFER
Q3709
3
C FRONT
5
C SCART
14
SW OUT
2
Y SCART
BUFFER
Q3708
BUFFER
Q3701
BUFFER
Q3702
BUFFER
Q3707
Y/CVBS FRONT
15
BUFFER
Q2700
BUFFER
Q2701
SC2-IN-R-H3
SC2-OUT-L-H3
SC2-IN-L-H3
AV LINK
C FRONT
C IN
VIDEO OUT
VIDEO IN
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
MODE
AV LINK
CN3702
CN3700
TO H2 BOARD
CN9300
IC3701
ANALOG
MULTIPLEXER/
DE-MULTIPLEXER
1
3
6
1 STBY 5V
TO A BOARD
CN0041
CN9050
LED 2
OUT
IC9050
IR RECEIVER (SIRCS)
H5 ( )
IR RECEIVER
& LED'S
VCC
2
SIRCS
5
LED 1
5V STANDBY
POWER
STANDBY
CN9000
TO B BOARD
CN0101
CN9200
H-PLUGGED
1
3
SWITCH
S9000, S9001
S9002, S9006
SWITCH
S9003, S9004,
S9005
TO A BOARD
CN2211
HP-L-OUT
HP-R-OUT
FRONT IN-R
FRONT IN-L
9
5
7
3
1
J9201
HEADPHONES
CN6003
AC IN
1
AC IN
3
H1 ( )
F6000
L6000
4A
2
4
1
3
CONTROL
BUTTONS
2
4
L6007
1
3
BRIDGE
RECTIFIER
D6000
IC6000
MAIN BRIDGE RECTIFIER
BUFFER
1
Q6000
V SENSE
15
VC1
Q6001
Q6002
IC6100
STANDBY CONTROLLER/DRIVER
5
3
7
8
T6100
4
5
1
2
VGH
VGL
OCP
TO H3 BOARD
CN3702
CN9300
1
3
Y/CVBS-FRONT
C FRONT
J9300
V
L
R
H2
BACKLIGHT
POWER-AV
STBY 5V
21
43
CN6005
2
TO A BOARD
CN6201
CN6001
11
TO A BOARD
CN6204
CN6101
2
TO B BOARD
CN6301
FRONT INPUT,
HP OUTPUT
( )
T6000
12
2
F/B
VS
9
8
SWITCH
Q6003
23
22
20
SWITCH
Q6004
16
PHOTO-
COUPLER
PH6000
2
4
REGULATOR
1 3
IC6101
PH6001
PHOTO-
COUPLER
BUFFER AMP
Q6005, Q6010,
Q6009
PHOTO-
COUPLER
PH6100
11
10
9
2
8
4
7
T6001
12
2
11
10
4
9
8
7
D6010
D6011
D6013
IC6001
REGULATOR
1 3
+16.5V
SWITCH
BUFFER
Q6006
Q6007
Q6008
POWER SUPPLY
G ( )
- 25 -
4-1. BLOCK DIA GRAMS (2)
4-2. CIRCUIT BOARD LOCATION
4-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note :
• All capacitors are in µF unless otherwise noted.
• pF : µµF 50WV or less are not indicated except for
electrolytic types.
• Indication of resistance, which does not have one for
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
• Chip resistors are 1/10W
• All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
• : nonflammable resistor.
• : fusible resistor.
• : internal component.
• : panel designation or adjustment for repair.
• All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
• All voltages are in Volts.
• Readings are taken with a 10Mohm digital mutimeter.
• Readings are taken with a color bar input signal.
• Voltage variations may be noted due to normal production
tolerences.
•: B + bus.
• : B - bus.
• : RF signal path.
• : earth - ground.
• : earth - chassis.
Reference Information
RESISTOR RN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
COIL LF-8L
: MICRO INDUCTO R
CAPACITOR TA
: TANTALUM
PS
: STYROL
PP
: POLYPROPYLENE
PT
: MYLAR
MPS
: METALIZED POLYESTER
MPP
: METALIZED POLYPR OPYLENE
ALB
: BIPOLAR
ALT
: HIGH TEMPERATURE
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
H1
B
H2
H5
G
A
H3
TUNER, AUDIO,
CHROMA DECODER,
A ( )
TO H3 BOARD
CN3703
CN3621
CN3602
SCART
15
17
13
11
4
21
23
24
8
6
25
2
SC2-IN-L
SC2-IN-R
SC2-OUT-R
SC2-OUT-L
SW MONITOR
Y/C SWITCH
VIDEO SWITCH
MODE 2
Y INPUT
C INPUT
AV LINK
RF SW
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
VIDEO OUT
BLUE IN
MODE
GREEN IN
RED IN
BLANKING
VIDEO IN
BUFFER
Q3600
BUFFER
Q2600
BUFFER
Q2601
LUMINANCE
CHROMINANCE
AMPLIFIER
Q1300,
Q1301
SC1-OUT-R
SC1-IN-R
SC1-OUT-L
SC1-IN-L
B SCART 1
MODE 1
G SCART 1
R SCART 1
FB SCART 1
CVBS AV1
TO G BOARD
CN6005
TO G BOARD
CN6001
TU1100
CN6201
CN6204
VIDEO
AGC
SCL
SDA
FM/AM
QSS
11
1
2
3
SWITCH
Q0002
BACKLIGHT
DIMMER
POWER AV
AGC DEFEAT
Q1100
PANEL DET
SWITCH &
BUFFER
Q6200, Q6203
+14.3V
PORT EXPANDER
19
P6
2
SCL
4
SDA
16
P4
17
P5
TO H2 BOARD
CN9200
CN2211
1
3
5
7
9
FRONT-IN-L
FRONT-IN-R
HP-L-OUT
HP-R-OUT
HP PLUGGED
FRONT-IN-R
FRONT-IN-L
SC2-OUT-L
SC2-OUT-R
SC1-OUT-L
SC1-OUT-R
BUFFER AMP
Q2100, Q2101
IC2300
HEADPHONE AMP
3
R.IN
1
L.IN
BUFFER
Q2301
SC1-IN-R
SC1-IN-L
SC2-IN-R
SC2-IN-L
FM/AM
QSS
7
6
SOUND PROCESSOR
54
IN-2-R
53
IN-2-L
51
IN-3-R
50
IN-3-L
48
IN-4-R
47
IN-4-L
34
OUT-2-L
33
OUT-2-R
37
OUT-1-L
36
OUT-1-R
60
MONO IN(AM)
67
IF IN 1
24
HP-R
25
HP-L
77
DIGITAL CONTROL OUT 1
AMPLIFIER
Q3806
SUB VIDEO PROCESSOR
Y FRO NT
44
CVBS2/Y2-IN
43
C2-IN
3
CVBS OUT
CVBS RF
1
IC1200
TV ID
6
COINCIDENCE
CIRCUIT
IC0030
BUFFER
Q1200
C FRONT
P0
P2
P3
P1
10
12
14
11
IC6202
REGULATOR
2
1
IC2000
POWER ON
RESET
XTAL IN
XTAL OUT
SPEAKER OUT R
SPEAKER OUT L
BUFFER
Q2300
SDA
SCL
3
+8V
21
3
2
X2000
71
72
27
28
IC3801
R SCART 1
G SCART 1
B SCART 1
FB SCART 1
CVBS AV1
Y OUT
AMPLIFIER
Q3808
H5
CB-OUT
AMPLIFIER
Q3809
CR-OUT
SCL
SDA
IC3811
SYNC ADDER
2 4
AMPLIFIER
Q3807
BUFFER
Q0001
CVBS3/Y2-IN
4
R1-IN
G1-IN
B1-IN
YS3
FB-SCART 1
AMPLIFIER
Q1201
27
26
25
15
41
21
9
22
23
13
14
SCL
SDA
Q2200
Q2202
Q2204
IC0001
PORT EXPANDER
2
SCL
4
SDA
14
P3
16
P4
AMPLIFIER
Q2000
BUFFER
Q2001
BUFFER
Q2002
SWITCH
Q2203
10
P0
Y/C SWITCH
11
P1
VIDEO SWITCH
12
P2
AUDIO POWER AMP
2
4
8
11
AUDIO LINE BUFFER
3
5
IC2500
OUT 2
IN2+
OUT 1
IN1+
MUTE TC
MUTE
IC2400
MUTE CIRCUIT
Q2400, Q2401
Q2405, Q2406
AMPLIFIER
Q2402
12
SCART 1
CN0042
2
SCL
3
SDA
CS
CS
CVBS MONITOR524
Y SYNC 2 9
CR
SCL-5
SDA-5
MODE 2
LUMINANCE
CHROMINANCE
AV LINK
IC0002
DIMMER LPF
1
BUFFER
7
L
7
R
1
Q0047
BUFFER
Q0046
3
POWER AV
DIMMER
LED 1 11
SIRCS
SIRCS
LED 1
LED 2
+5V STBY
SP R OUT
SP L OUT
4
CN0043
8MODE 1
20CB
21
12
14
9
28
25
1
10
4
3
CN0041
2
5
6
1
CN2500
1
3
J2400
L
R
SERVICE
TO B BOARD
TO H5 BOARD
TO SPEAKERS
AUDIO OUT
CN3000
CN9050
- 26 -
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