DOWNLOAD Sony KF-42WE620 / KF-50WE620 Service Manual ↓ Size: 6.42 MB | Pages: 127 in PDF or view online for FREE

Model
KF-42WE620 KF-50WE620
Pages
127
Size
6.42 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kf-42we620-kf-50we620.pdf
Date
PREV: Sony KP-46WT520 / KP-51WS520 / KP-57WS520 (serv.man2) Service Manual

Sony KF-42WE620 / KF-50WE620 Service Manual ▷ View online

KF-42WE620/50WE620
98 
KF-42WE620/50WE620
CN4702
SUR-L
SUR-R
6
L CH_OUT
10
R CH_OUT
12
SP-MUTE
13
SP-DC-DET
14
AU-17V
15
GND
16
GND
17
AU+17V
18
CLK
4
SDA
3
SET 9V
1
8
AU
IC4701
SURROUND PROCESSOR
LIN
FLIN
RIN
FRIN
RLIN
RRIN
SDA
TRUSURROUND
AGC
V+
SCL
CIN
SWIN
BUS I/F
I
2
C
OUTA
16
OUTB
LFINB
LFINA
LFONA
H-R IN
H-R IN
H-R OUT
H-R OUT
H-L -VS
D4707
Q4709
Q4701
+VS
+17V
-17V
MUTE
LFOUTB
36
35
17
+9V
+17V
-17V
+12V
+9V
CN4703
H-L(-)
(L)
(R)
H-L(+)
H-R(-)
H-R(+)
2
4
1
3
BBE/
TONE
IC4702
D
LPF
( AUDIO AMP )
CN8903
To A(2/2) BOARD 
64
62
63
61
60
58
57
28
22 23
59
BBE/
TONE
BUFFER
Q4710
LPF
BUFFER
3
5
18
34
Q4711
LPF
1
7
IC4704
POWER AMP
7
11
5
4
2
6
3
Q4712
BUFFER
Q4702,4703
MUTE
Q4704
INITIALMUTE
Q4706,4707,4708
DC LEVEL DETECT
Q4713
BUFFER
Q4705
+17V
D4705
(SPEED UP)
IC4703
+12V REG.
I
O
-12V
IC4705
-12V REG.
I
O
 
AU BLOCK DIAGRAM
KF-42WE620/50WE620
99 
KF-42WE620/50WE620
16
15
12
9
8
2
1
1
2
3
4
Q1606
SWITCHING
Q1607
SWITCHING
1
CN1609
CN1907
AC(L)
AC(N)
AC(L)
AC(N)
4
1
3
C32
CN1603
A32
C29
AU-17V
AU-17V
AU+17V
AU+17V
10V
10V
5V
5V
5V
5V
5V
5V
D6.5V
D6.5V
D6.5V
D6.5V
D6.5V
11V
11V
11V
4V
4V
4V
9V
9V
9V
9V
A29
C26
A26
C25
C24
A25
C23
A24
A23
A20
C18
C19
A19
A18
A16
C15
A15
A13
C12
AC-RLY(+)
AC-RLY(-)
A12
C9
A9
C8
A8
A5
33V
A7
A6
SUB7V
A4
POW-CTL
A3
17V-DET
A2
MS3.3V OVP
10V-DET
C1
A1
8
CN1605
7
17V
17V
6.5V
3
6.5V
4
3
CN1602
1
LAMP-GND
LAMP+DC
1
3
4
6
5
11
10
9
8
25
11,12
13,14
18,19
20,21
27
29
10
11
12
13
9
18
14
15
16
17
8
2
1
AC(L)
AC IN
AC(N)
Q1601
SWITCHING
DRIVER
Q1602
SWITCHING
OSC
IC1608
+9V REG.
IC1603
DC/DC CONVERTER.
IC1604
DC/DC CONVERTER.
IC1601
SWITCHING REGULATOR
+11V
D6.5V
25
I
VDD
VOUT
VDD
VOUT
OCL+P
OCL-
AMP-
OCL+P
OCL-
AMP-
O
11,12
13,14
18,19
20,21
27
29
IC1606
+5V REG.
IC1607
+4V REG.
IC1602
SHUNT
REGULATOR
+17V-1
+17V-2
D1625
PS1601
PS1602
D1624
D1609
PH1601
D1623
R1613
D1608
F1602
F1603
T1603
PIT
T1601
SBT
D1614
D1610
D1648
D1601
RECTFIER
PH1602
D1619
D6.5V
VSENSE
VG(H)
+5
VG(L)
OCP
VCI
F/B
+11V
D1602
DUBLER
RECTIFIER
RY1602
Q1604,1605
OFF LATCH
Q1603
RELAY DRIVER
LINE
FILTER
T1906
F1901
Q1613,1622
DOUBLER
RECTIFIER
DELAY
RY1601
D1647
D1649
+17V-1
+17V-2
+11V
D6.5V
D1619
D1639
D1641
D1643
3
2
A
1
LINE
FILTER
T1905
I
O
I
O
K
R
G1 (SWITCHING REGULATOR)
F (LINE FILTER)
TO
LAMP
DRIVER
TO
C1 BOARD
TO A BOARD
CN8902
G
 
G1 BLOCK DIAGRAM
KF-42WE620/50WE620
100 
KF-42WE620/50WE620
J40
D40
D51
D50
D49
V
L
CN44
SDA-E
SCL-E
1
2
L
(MONO)
AUDIO
VIDEO
S VIDEO
VIDEO 2 INPUT
R
(VIDEO 2 INPUT)
H3
(KEY INPUT,SIRCS)
H1
F
CN8023
TO A2 BOARD
CN171
SIRCS
KEY
4
2
E
CN8001
TO A BOARD
CN43
12
10
8
6
4
V2-SW
V2-S2
1
2
I
CN9400
TO U BOARD
V2-C
V2-Y
V2-V
V2-L
V2-R
S175
TV/VIDEO
S173
S172
S171
OUT
S174
1
2
3
4
2
1
EEPROM
IC41
IC171
Q4503,4510
LED DRIVER
(POWER SWITCH)
H2
CN4502
5
4
6
7
STBY LED
8
B
CN8002
TO A BOARD
TIMER LED
LAMP-LED
P-ON
3
STBY+5V
2
GND
1
POW_LED
GND
VOLUME +
CHANNEL -
CHANNEL +
VOLUME
Q4508
LED DRIVER
STBY
+5V
Q4509
LED DRIVER
Q4504,4511
LED DRIVER
POWER/
STANDBY
TIMER
D4503
D4504
G
R
D4510
S4501
LAMP
POWER
(LAMP DOOR SWITCH)
T
CN3999
S3999
(LAMP DOOR)
LAMP COV
GND
3
1
C
CN8014
TO A BOARD
 
H3, H1, H2, AND T BLOCK DIAGRAMS
KF-42WE620/50WE620
101 
KF-42WE620/50WE620
 
U BLOCK DIAGRAM
Q9410
BUFFER
Q9409
BUFFER
Q9401
BUFFER
Q9404
BUFFER
15
22
8
1
17
24
10
3
19
26
12
5
59
62
16
23
9
2
61
64
18
25
11
4
21
20
28
27
14
13
7
6
IC9400
AV INPUT SELECT SWITCH
Q9407
BUFFER
Q9405
BUFFER
Q9404
BUFFER
Q9406
BUFFER
Q9427
BUFFER
Q9421
BUFFER
Q9424
BUFFER
Q9425
BUFFER
Q9403
BUFFER
Q9411
BUFFER
Q9416
MUTE SWITCH
Q9416
MUTE SWITCH
Q9423, 9422
MUTE
Q9417, 9418
INITIAL
MUTE SWITCH
AUDIO
OUT
VAR/FIX
D9435
D9430
D9434
Q9419
BIAS
Q9414
BUFFER
Q9426
BUFFER
S VIDEO
VIDEO
R
L
(MONO)
Q9428
BUFFER
Q9402
BUFFER
Q9408
BUFFER
Q9412
BUFFER
Q9413
BUFFER
V-IN1
V-IN2
V-IN3
V-IN4
Y-IN1
Y-IN2
Y-IN3
Y-IN4
C-IN1
C-IN2
C-IN3
C-IN4
V6-L
V5-L
L-IN1
L-IN2
L-IN3
L-IN4
V6-R
V5-R
R-IN1
R-IN2
R-IN3
R-IN4
SSW-IN1
S2-IN1
SSW-IN2
S2-IN2
SSW-IN3
S2-IN3
SSW-IN4
S2-IN4
V1-V
V2-V
V3-V
V4-V
V1-Y
V2-Y
V3-Y
V4-Y
V1-C
V2-C
V3-C
V4-C
V1-L
V2-L
V3-L
V4-L
V1-R
V2-R
V3-R
V4-R
D2-L
D1-L
D2-R
D1-R
V1-S
V1-S2
SSW2
V2-S2
V3-S
V3-S2
V4-S
V4-S2
V1-V
V3-V
V4-V
V1-Y
J9401
J9409
J9402
J9400
V3-Y
V4-Y
V1-C
C
Y
Y
L
R
V3-C
V4-C
V1-L
V3-L
V4-L
V1-R
V3-R
V4-R
D2-L
D1-L
D2-R
D1-R
CB5
Y5
CR5
CB6
Y6
CR6
V1-S
V1-S2
SSW2
CN9400
CN9402
CN9404
CN9405
V3-S
V3-S2
V4-S
V4-S2
44
53
49
56
58
47
43
45
52
54
34
33
MAIN Y/V OUT
SUB V OUT
YIN
SUB Y OUT
SUB C OUT
MAIN C OUT
MAIN L OUT
MAIN R OUT
SUB L OUT
SUB R OUT
SDA
SCL
10
3
5
12
9
11
2
4
59
61
29
31
62
64
43
45
IC9401
AV INPUT/OUTPUT SELECT SWITCH
IC9401
VIDEO SWITCH
MAIN-YV
YV
C
SUB-YV
SUB-C
MAIN-C
MAIN-L
MAIN-R
SUB-L
SUB-R
MS-L
MS-R
DVI-L
DVI-R
ATSC-L
ATSC-R
MAIN-L OUT
MAIN-R OUT
MS-L
MS-R
DVI-L
DVI-R
ATSC-L
ATSC-R
MAIN-L OUT
MAIN-R OUT
44
53
49
56
58
47
8
11
COMP Y
9
COMP CB
COMP CR
8
1
15
22
16
18
34
33
MAIN YV OUT
SUB V OUT
YIN
SUB Y OUT
SUB C OUT
MAIN C OUT
RF MAIN-V
MTU-V
Y
CB
CR
STU-V
MTU-L
MTU-R
SUB-LR
RF SUB-V
RF MAIN-L
RF MAIN-R
23
25
RF SUB-L
RF SUB-R
SDA
SCL
1
2
3
4
5
7
8
9
10
11
33
34
35
41
42
43
44
45
46
47
20
IC9402
COMPONENT INTERFACE
IC9405
AUDIO BUFFER
IC9405
LINE AMP
IN3-1
IN3-2
IN3-3
IN3-H
IN3-V
IN4-1
IN4-2
IN4-3
IN1-1
IN1-2
IN1-3
IN2-1
IN2-2
IN2-3
IN2-H/L1
IN2-V/L2
IN2-L3
IN2-SW
IN4-H
IN4-V
EXTCLK/XTAL
CR5
CB5
Y5
PR
PB
Y
ATSC-PR
ATSC-PB
CR6
CB6
Y6
ATSC-Y
X9400
31
30
17
16
Y OUT
MUTE
VGA
RESET
TO
A BOARD
CN8006
TO
UD BOARD
CN7005
CB
Y
CR
C/V SW
CB OUT
6
5
CONT 7
CONT
CR OUT
CONT
12
2
3
16
15
27
26
25
7
1
5
3
SDA
SCL
CLAMP-SW
YG_IN
YG_OUT
SEL Y OUT
Y
AT-L
AT-R
CB
CR
SEL CB OUT
SEL CR OUT
NC
NC
3
4
1
2
3
4
1
2
3
4
1
2
1
2
4
6
8
10
12
V2-SW
V2-S2
V2-C
V2-Y
V2-V
V2-L
V2-R
1
3
5
ATSC-PR
ATSC-PB
ATSC-Y
1
3
ATSC-L
ATSC-R
CN9406
CN9401
A31
A30
A28
A27
A26
A25
A24
A23
A22
C21
C20
A19
A18
A16
A15
A14
A13
A11
A10
C8
A8
A7
A6
C5
C4
C3
C2
A3
A2
SUB-YV
SUB-C
MS-L
MS-R
SUB TU LR
SUB TU V
MAIN TU R
MAIN TU L
MAIN TU V
SDA
SCL
MAIN-R OUT
MAIN-L OUT
C/V COMP SW
COMP CR
COMP CB
COMP Y
CONT-S IN
CONT-S OUT
DVI-MUTE
DVI-VGA
DVI-RESET
VAR MUTE
+5V
+5V
+9V
+9V
VAR R OUT
VAR L OUT
MS-L
MS-R
SUB-LR
SUB-V
MTU-R
MTU-L
MTU-V
SDA
SCL
MAIN-R
MAIN-L
C/V SW
CR
CB
Y
MUTE
VGA
RESET
4
3
2
1
MUTE
VGA
RESET
5V
V2-S2
V2-C
V2-Y
V2-V
V2-L
V2-R
1
3
5
7
9
PR
PB
Y
L
R
PR
PB
Y
DV1-L
DV1-R
+5V
+9V
+9V
5
6
3
2
1
7
AUDIO
VIDEO IN
1
S VIDEO
VIDEO
R
L
(MONO)
C
Y
Y
L
R
AUDIO
VIDEO IN
3
S VIDEO
VIDEO
PR
PB
R
L
(MONO)
C
Y
Y
L
R
R
L
VR
VB
VG
R
L
VR
VB
VG
AUDIO
L
R
Y
AUDIO
L
R
AUDIO
VIDEO IN
4
HD/DVD
IN 5
CONTROL
S
IN
CONTROL
S
OUT
PR
PB
L
R
Y
TO
H3 BOARD
CN43
TO
UD BOARD
CN7006
AUDIO
HD/DVD
IN 6
Q
N
E
C
U
(VIDEO INPUT)
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