Sony KLV-26HG2 (serv.man3) Service Manual ▷ View online
KLV-26HG2
14
KLV-26HG2
G
D
S
B1 E1
C2
B2 C1
E2
-
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B1 E1
E2
C1(B2)
C2
B1
E2
C1
C2
(B2)
E1
(B2)
E1
E2
B1
C2
C1
B1
E1
C2
B2
C1
E2
G
S
S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2
C1(B2)
E2
B1
C1
C2
E1(B2)
C2
B1
C1
E2
E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.6
Transistor
(FET)
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductor
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device
Printed symbol
Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*
1
5
7
2
3
8
4
9
6
14
13
12
11
10
15
18
17
16
22
21
20
19
23
3-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in µF unless otherwise noted. pF : µµF
50WV or less are not indicated except for electrolytics and
tantalums.
50WV or less are not indicated except for electrolytics and
tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. k
Ω=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows:
electrical power, is as follows:
Pitch : 5mm
Rating electrical power :
1
/
4
W
1
/
4
W in resistance,
1
/
10
W and
1
/
16
W in chip resistance.
: nonfl ammable resistor
: fusible resistor
: internal component
: panel designation and adjustment for repair
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
curve B, unless otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M
Ω digital multimeter.
Voltages are DC with respect to ground unless otherwise
noted.
noted.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
All voltages are in V.
S : Measurement impossibility.
: B+line.
: B-line. (Actual measured value may be
different).
: signal path. (RF)
Circled numbers are waveform references.
The components identifi ed by shading and
!
symbol are critical for safety. Replace
only with part number specifi ed.
The symbol
indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
Les composants identifi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifi e.
Le symbole
indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
KLV-26HG2
KLV-26HG2
15
3-3. BLOCK DIAGRAMS (1 OF 6)
10
9
8
7
6
5
4
3
2
1
CN6403
CN6401
OUT2
DETOUT
STLED
BILED
BILED
MODE
FMONO
MUTE
R
L
R
L
GND
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
GND
9V
30V
5V
SCL T
SDA T
SDA T
GND
RF AGC
AFT
GND
GND
Q6402
BUFFER
BUFFER
Q6403
Q6401,6404,6406
BUFFER
9V
30V
5V
TU6400
TUNER
DET OUT2
L OUT
R OUT
R OUT
MUTE
FMONO
MODE
BIL IND
ST IND
DET OUT
AFT OUT
RFAGC
SCL
SDA
SDA
VIDEO
AUDIO L/R
CN9202
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
C2
G
Y2
G
V2
G
S-2
LV2
RV2
LV2
RV2
G
AUDIO
R
L
VIDEO
S VIDEO
1
2
3 4
V
L
R
J9202
VIDEO 2
INPUT
H2(2/2)
(INPUT TERMINAL)
6
5
4
3
2
1
CN9004
9
10
11
12
11
12
GND
L
R
MUTE
FMONO
MODE
BIL
STL
DETOUT
OUT2
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
GND
AFT
RF AGC
AGC DET(NC)
SDA
SCL
5V
30V
9V
GND
10
9
8
7
6
5
4
3
2
1
CN6450
CN6451
TV
LV2
C2
45
AV SW
COUT1
YOUT1
47
9
12
43
8 V2
Y2
10
IC2803
LV3 16
RV3 18
RV3 18
48 RTV
11 RV2
14 S2
14 S2
S1
S2-1
7
6
RV1
4
3 Y1
V1
1
5
2
2
C1
LV1
LV1
LTV
46
AUDIO L
AUDIO R
VIDEO
SDA 27
SCL 26
SCL 26
ROUT1 41
LOUT1 39
VOUT2 33
LOUT1 39
VOUT2 33
15
V3
Y
C
9V
5V
SCL_T
SDA_T
SCL_T
SDA_T
CR
16
14 C
CB
11
Y
8
IC2511
Y/V
9
6
Y/V OUT
CR OUT
SEL
3
CB/C OUT 5
Y
B-Y
AUDIO L/R
VIDEO
AUDIO R
AUDIO L
8
7
NC
C2
C2
GND
Y2
GND
V2
GND
S-2
LV2
RV2
GND
S-2
LV2
RV2
GND
NC
10
9
8
7
6
5
4
3
2
1
GND
RV1
LY1
S-1
GND
V1
GND
Y1
GND
C1
CN9007
S2-1
NC
NC
12
11
INPUT
VIDEO 1
J9201
R
L
V
4
3
2
1
S VIDEO
VIDEO
L
R
AUDIO
G
RV1
LV1
S-1
G
V1
G
Y1
G
C1
10
9
8
7
6
5
4
3
2
1
CN9201
(TUNER)
TU
20
19
17
16
14
13
11
10
8
6
5
4
3
2
1
CN2801(2/2)
SCL_T
SDA_T
SCL B 5V
SDA B 5V
SDA B 5V
Q6450
Q6451
Q6452,Q6453
SYNC SEP
Q6454
BUFFER
CN9003
D-Y
D-PB
D-PR
D-PB
D-PR
DVI-MUTE
VGA
DVI-RST
2
4
6
8
9
10
4
6
8
9
10
Q2802
Q2535
BUFFER
BUFFER
Q2801
Q2533
Q2537
BUFFER
BUFFER
Q2538
Q2540-2542
BUFFER
Q2556,2557,2560
BUFFER
1
VID
MUTE
PMOD
MOD0
MOD1
PMOD
MOD0
MOD1
BIL
ST
AFT
AGC
AGC
SYMDET
SDA T
SCL T
SCL T
LINRE MUTE
DVI-RST
SCL B 5V
SDA B 5V
SDA B 5V
TO B-1 BOARD
CN1007
2
7
7
12
CONT
Q2539
BUFFER
R-Y
CCP SW
SDA_B_5V
SCL_B_5V
SCL_B_5V
A1-1
TO A-2
Q6448
Q6449
2
P_MUTE
UNREG33V
Q6448
Q6449
D6448,6449
SYNC
C
U1
(INPUT TERMINAL)
LINRE MUTE
AUDIO L/R
Y/PB/PR/CCPSW/VID
Y/CB/CR
D-Y/D-PB/D-PR
LINRE MUTE
V3/LV3/RV3
TO UD BOARD
CN9302
H
TO A-3
TO A-3
Q9003
(AV SW)
KLV-26HG2
KLV-26HG2
16
BASS/TREBLE
VOL LOUD/ ATT
3
5
5
14
13
10 11
AUDIO CONTROL
IC7003
L
R
R
AUDIO L/R
Y/C
5
6
6
3
2
2
7
1
7
1
6
5
2
3
42
41
30
29
22 23 26
IC7011
AP
INL
INR
OUTL
OUTR
MODE
AUDIO L
AUDIO R
COMPARATOR
IC7009
MUTE
Q7001,7002
6
5
5
7
4
3
2
1
CN3002
HP DET
NC
SP MUTE
HP MUTE
HP MUTE
4
3
2
1
SP L GND
SP L OUT
SP R GND
SP R OUT
CN7002
L
R
SPEAKER
AUDIO R
AUDIO L
G
TO B-1 BOARD
CN1005
IC7002
HP AMP
AUDIO L
AUDIO R
3
2
1
HP-L
HP-R
HP-GND
CN7601
4
HP-DET
H2
(HEADPHONE)
J7601
HEADPHONE
AUDIO R
AUDIO L
HP MUTE
INPUT2
COMPONENT
J9002
AUDIO
R
L
JIN1-3
IN1-1
AV SW2
IC2505
25
35
33
34 IN1-2
34 IN1-2
26
27
27
HOUT 22
SCL 30
31
SDA
23
VOUT
20
IN2-2
42
41
43
IN2-1
IN2-3
PR
PB
PB
Y
PR2
PB2
PB2
Y2
X2502
4MHz
SCL_B_5V
SDA_B_5V
SCL_B_5V
SDA_B_5V
Q2558,Q2559
LEVEL SHIFT
17
CLAMP SW
16
YG IN
2
3
3
1 5
6
4 9
8
10
12
11
13
2
4
6
8
4
6
8
10
12
14
15
16
17
18
19
20
21
22
23
24
25
12
14
15
16
17
18
19
20
21
22
23
24
25
D-PR
D-PB
D-PB
D-Y
VID
VID
MSAU R
MSAU L
MSAU L
CLAMP GATE
SYNC ON
CCP SW
CSW M
CSW V
CSW V
AU SW2
AU SW1
AU SW1
SRS
1
CSW H
CSW V
SYNC
Q2502,Q2503
IC2506
Q7011
SRS
1
2
3
7
5
6
1
3
2
Q7003
9V
IC7004
FILTER W
FILTER W
IC7005
CROUT
CBOUT
YOUT
CBOUT
YOUT
CN7001
A1-2
(AV SW,AUDIO AMP)
SCL_B_5V
SDA_B_5V
HP DET
TO A-1
PR
PB
Y
L/R
V3/LV3/RV3
V3
Q7400
Q7401
3
2
6
5
2
6
5
1
7
AUDIO L
AUDIO R
COMPARATOR
IC7400
MUTE
Q7005,7006
J7O04
Y/CB/CR
LINE MUTE
Y/PB/PR,CCP SW,VID
J9003
J9003
AUDIO
R
L
SW
IC2802
3
1
5
7
4
2
SW
IC2801
3
1
5
7
4
2
RV3
LV3
D-Y/D-PB/D-PR
IC7007
AUDIO AMP
8
1
5
AUDIO L
10
OUT2
OUT1
AUDIO R
IN+
INV2+
SP MUTE
Q7007,7005
3
Q7018
Q7019
2
P_MUTE
7
5
6
1
3
2
2
IC7006
MIX
Q7020
R-Y
B-Y
Y
BLOCK DIAGRAMS (2 OF 6)
KLV-26HG2
KLV-26HG2
17
BLOCK DIAGRAMS (3 OF 6)
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN4601
UNREG12V
UNREG12V
UNREG12V
GND
GND
GND
UNREG6V
UNREG6V
UNREG6V
UNREG6V
UNREG6V
GND
GND
GND
GND
GND
UNREG33V
GND
REG10.5V
GND
2
1
CN4605
REG16.5V
REG16.5V
REG16.5V
25
24
23
22
CN2801(2/2)
POWER1
POWER2
POWER3
POWER4
POWER2
POWER3
POWER4
IC4601
CONVERTER
24
VCC
STBY1
STBY2
OUT1_D
REG5V_IN
LIM
LL1
LL1
OUT1_u
LH2
OUT2_D
LL2
OUT2_U
INV2
FB2
POWER_GOOD
33V
AU12V
IC4603
5V REG
VCC
OUT
Q4602
SW
G
S1
S2
S3
S1
S2
S3
D1
D2
D3
D4
D2
D3
D4
27
4
1
2
3
1
2
3
5
6
7
8
6
7
8
Q4601
SW
G
S1
S2
S3
S1
S2
S3
D1
D2
D3
D4
D2
D3
D4
4
1
2
3
1
2
3
5
6
7
8
6
7
8
Q4603
SW
G
S1
S2
S3
S1
S2
S3
D1
D2
D3
D4
D2
D3
D4
4
1
2
3
1
2
3
5
6
7
8
6
7
8
Q4605
SW
G
S1
S2
S3
S1
S2
S3
D1
D2
D3
D4
D2
D3
D4
1
2
3
4
2
3
4
5
6
7
8
6
7
8
L8602
IC4602
9V REG
VCC
OUT
1
2
2
21
30
28
30
28
29
16
19
18
17
18
17
15
14
14
12
Q4606
L4601
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN4603
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
GND
GND
GND
D5V
GND
GND
D5V
9V
GND
PANEL12V
PANEL12V
PANEL12V
GND
GND
GND
VGA
DVI-MUTE
GND
GND
GND
3.3V_ALERT
5V_ALERT
DCIN_ALERT
GND
DIMMER
BACKLIGHT
PANEL_DET
PANEL_DET
5
4
3
2
1
4
3
2
1
CN4604
DIMMER
BACKLIGHT
PANEL_DET
PANEL_DET
GND
D5V
D5V
D4612
D4611
+9V
+12V
PS4601
9
10
B
TO B-1 BOARD
CN1003
TO LCD PANEL
TO G1 BOARD
CN6003
C
TO B-1 BOARD
CN1007
A1-3
(POWER SUPPLY)
D3.3V
REG16.5V
16.5V
Q4604
2
P_MUTE
FROM A-1
FROM A-1
1
2
2
CN4501
IC4501
3.3V REG
1
5
5
2
4
4
2
1
3.3V
3.3V
CN4502
TO B BOARD
CN3002
MSB
(3.3V REG)
3
2
1
R
L
CN6002
F6000
IC6002
DRIVER
1
15
2
23
22
20
16
PROT
Q6001
Q6005
CONVERTER
CONVERTER
Q6006
T6003
PH6002
IC6005
5
7
7
6
5
2
1
UNREG 6V
UNREG 6V
UNREG 6V
UNREG 12V
UNREG 12V
CN6003
D6019
Q6003,Q6004
P-ON SW
1
2
4
3
3
4
2
1
PH6001
T6001
CN6006
POWER ON
STBY 5V
GND
3
1
4
1
4
Q6007
P-ON STOP
CONV.
IC6001
1
4
2
3
4
2
3
8
7
7
5
D6011
D6010
1
3
3
9
8
D6015
5
6
G1
(POWER SUPPLY)
AC100V
50/60Hz
L6003
D6000
14
13
12
13
12
11
L6004
+17V
F/B
D6006
Q6002
CONV.CONTROL
IC6003
VCC
OUT
IC6004
5V REG
UNREG 33V
11
REG 16.5V
13
2
1
REG 16.5V
REG 16.5V
CN6004
TO A-3 BOARD
CN4601
CN1009
TO B BOARD
10
9
T6002
11
12
13
8
9
10
D6015
D6018
D6020
D6017
D6021
D6022
5
7
D
TO LCD UNIT
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