DOWNLOAD Sharp LC-15B2E (serv.man4) Service Manual ↓ Size: 82.62 KB | Pages: 7 in PDF or view online for FREE

Model
LC-15B2E (serv.man4)
Pages
7
Size
82.62 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Part 2 - Chassis layout, Block diagrams, Overall schematic diagram (18-27)
File
lc-15b2e-sm4.pdf
Date
PREV: Sharp LC-15B2E (serv.man3) Service Manual

Sharp LC-15B2E (serv.man4) Service Manual ▷ View online

24
LC-15B2E
DESCRIPTION OF SCHEMATIC DIAGRAM
1. When the exclusive-use AC adapter is used, the
colour bar signal of colour bar generator for service
is input to get the normal screen. When the audio is
minimized, the voltage value is measured with the
20 k
Ω
/V tester.
2. When the exclusive-use AC adapter is used, the
colour density, lightness and colour hue are set to
the center position, and the signal of colour bar
generator for service is observed to get waveform.
The wave form test point is indicated with the mark
(
) in the wiring diagram.
3. Indication of resistors and capacitors
[Resistors]
Unit
: Nonindication …
Ω
, K…k
Ω
,
M … M
Ω
Error : Nonindication …
±
5%
F …
±
1%
D …
±
0.5%
[Capacitor]
Unit
: Nonindication or 
µ
…
µ
F,
P or p … pF
IMPORTANT SAFETY NOTICE:
PA RT S   M A R K E D  W I T H   "
å
" (  
  )
  A R E
INPORTANT FOR MAINTAINING THE SAFETY OF
THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FORMAINTAINING THE SAFETY
AND PERFORMANCE OF THE SET.
CAUTION:
This circuit diagram is original one, therefore there
may be a slight difference from yours.
Resistors
Nonindication
Carbon-film resistor
C
Solid resistor
S
Metal-oxide-film resistor
N
Metal-film resistor
W
Cement resistor
T
Special resistor
Capacitors
Nonndication
Ceramic capacitor
ML
Mylar capacitor
PF
Polypropylene
film capacitor
TA
Tantalum capacitor
Styrol capacitor
[Item]
25
LC-15B2E
- M E M O -
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-15B2E
LC-15B2E
26~27
MONOS
GND
SIF
B31V
GND
SCL1
SDA1
GND
V2 L
V2 R
GND
V2LO
V2RO
GND
SC2OUTL
SC2OUTR
GND
V2VO
GND
V2VO
GND
TV_V
GND
SCY
B12V1A
GND
OFL
LMUTE
HSYNC_SW
GND
30
29
28
27
26
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
MA
PAVCC
PAVCC
N. C
PAGND
PAGND
SIGGND
SIGGND
N. C
SIGVCC
SIGVCC
1
2
3
4
5
6
7
8
9
10
MB
OPTION
IREM
MRDY
B5VA
SUB_CLK
SUB_IN
SUB_OUT
MIS_IN
MIS_OUT
OSDCK
OSDVD
OSDHD
B5V500MA
TEXTBLK
TEXTB
TEXTG
TEXTR
GND
GND
VIDEO
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
MT
MONOS
GND
SIF
B31V
GND
SCL1
SDA1
GND
V2 L
V2 R
GND
V2LO
V2RO
GND
SC2OUTL
SC2OUTR
GND
V2VO
GND
V2VO
GND
TV_V
GND
SCY
B12V1A
GND
OFL
LMUTE
HSYNC_SW
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
MA
GND
SCL0
SDA0
SCL1
SDA1
RSIG
JST
1
2
3
4
5
6
7
TA
PAVCC
PAVCC
N. .C
PAGND
PAGND
SIGGND
SIGGND
N. C
SIGVCC
SIGVCC
1
2
3
4
5
6
7
8
9
10
MB
V1IN
VGND
V1_L
V1_R
SGND
V1_SY
V1_SC
1
2
3
4
5
6
7
MV
LIGHT COLD
LIGHT COLD
1
2
3
IA
L SP
PA GND
1
2
 
R SP
PA GND
1
2
 
IREM
B5VA
POW
GND
L_ERR
RC_IND
1
2
3
4
5
6
MR
IREM
B5VA
POW
GND
L_ERR
RC_IND
1
2
3
4
5
6
MR
MT
IR_EM_OUT
IR_EM
MRDY
B5VA
SUB_CLK
SUB_IN
SUB_OUT
MIS_IN
MIS_OUT
NC
V
H
B5V500MA
FB_VPC
B_VPC
G_VPC
R_VPC
GND
GND
VIDEO-VPC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VCOM
VCOM
DGND
CSCOM
CSCOM
SGND
V0
V16
V32
V48
V63
DGND
3.3V VSH
3.3V VSH
5V VLS
5V VLS
DGND
R5
R4
R3
R2
R1
R0
DGND
G5
G4
G3
G2
G1
G0
DGND
B5
B4
B3
B2
B1
B0
DGND
CK
DGND
SPIO
SPOI
LBR
HG
DGND
YOBI8
YOBI7
YOBI6
YOBI5
YOBI4
YOBI3
YOBI2
YOBI1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
LS
VLS
VLS
DGND
DGND
DGND
DGND
DGND
VGL
VGL
VGL
VSH
VSH
VGH
VGH
U/D
GSP
POWER
GCK
CSCOM
CSCOM
YOBI1
YOBI2
YOBI3
YOBI4
YOBI5
YOBI6
YOBI7
YOBI8
DGND
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LG
INV+B
OFL
INV GND
1
2
3
TV
INVGND
INVGND
1
2
VD
T
E
R
M
I
N
A
L
P
W
B
R
U
N
T
K
0
7
0
3
C
E
Z
Z
V1IN
VGND
V1_L
V1_R
SGND
V1_SY
V1_SC
1
2
3
4
5
6
7
MV
LIGHT HOT
N. C
LIGHT HOT
1
2
3
HV
INV+B
OFL
INV GND
1
2
3
TV
JACK PWB
DUNTKA699DE
LED PWB
OPERATION PWB
DUNTKA696DE
MAIN PWB
INVGND
INVGND
1
2
VD
H_L
GND
H_R
NC
1
2
3
4
MN
H_L
GND
H_R
NC
1
2
3
4
MN
B
A
C
K
L
I
G
H
T
DUNTKA700DE
L
C
D
S
O
U
R
C
E
L
C
D
G
A
T
E
LMRDY
SCL1
SDA1
GND
MRDY
1
2
3
4
5
MC
POW2
POW1
KEY1
KEY2
GND
1
2
3
4
5
MS
POW2
POW1
KEY1
KEY2
GND
1
2
3
4
5
MS
DUNTKA6980DE
OVERALL SCHEMATIC DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-15B2E
LC-15B2E
26~27
MONOS
GND
SIF
B31V
GND
SCL1
SDA1
GND
V2 L
V2 R
GND
V2LO
V2RO
GND
SC2OUTL
SC2OUTR
GND
V2VO
GND
V2VO
GND
TV_V
GND
SCY
B12V1A
GND
OFL
LMUTE
HSYNC_SW
GND
30
29
28
27
26
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
MA
PAVCC
PAVCC
N. C
PAGND
PAGND
SIGGND
SIGGND
N. C
SIGVCC
SIGVCC
1
2
3
4
5
6
7
8
9
10
MB
OPTION
IREM
MRDY
B5VA
SUB_CLK
SUB_IN
SUB_OUT
MIS_IN
MIS_OUT
OSDCK
OSDVD
OSDHD
B5V500MA
TEXTBLK
TEXTB
TEXTG
TEXTR
GND
GND
VIDEO
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
MT
MONOS
GND
SIF
B31V
GND
SCL1
SDA1
GND
V2 L
V2 R
GND
V2LO
V2RO
GND
SC2OUTL
SC2OUTR
GND
V2VO
GND
V2VO
GND
TV_V
GND
SCY
B12V1A
GND
OFL
LMUTE
HSYNC_SW
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
MA
GND
SCL0
SDA0
SCL1
SDA1
RSIG
JST
1
2
3
4
5
6
7
TA
PAVCC
PAVCC
N. .C
PAGND
PAGND
SIGGND
SIGGND
N. C
SIGVCC
SIGVCC
1
2
3
4
5
6
7
8
9
10
MB
V1IN
VGND
V1_L
V1_R
SGND
V1_SY
V1_SC
1
2
3
4
5
6
7
MV
LIGHT COLD
LIGHT COLD
1
2
3
IA
L SP
PA GND
1
2
 
R SP
PA GND
1
2
 
IREM
B5VA
POW
GND
L_ERR
RC_IND
1
2
3
4
5
6
MR
IREM
B5VA
POW
GND
L_ERR
RC_IND
1
2
3
4
5
6
MR
MT
IR_EM_OUT
IR_EM
MRDY
B5VA
SUB_CLK
SUB_IN
SUB_OUT
MIS_IN
MIS_OUT
NC
V
H
B5V500MA
FB_VPC
B_VPC
G_VPC
R_VPC
GND
GND
VIDEO-VPC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VCOM
VCOM
DGND
CSCOM
CSCOM
SGND
V0
V16
V32
V48
V63
DGND
3.3V VSH
3.3V VSH
5V VLS
5V VLS
DGND
R5
R4
R3
R2
R1
R0
DGND
G5
G4
G3
G2
G1
G0
DGND
B5
B4
B3
B2
B1
B0
DGND
CK
DGND
SPIO
SPOI
LBR
HG
DGND
YOBI8
YOBI7
YOBI6
YOBI5
YOBI4
YOBI3
YOBI2
YOBI1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
LS
VLS
VLS
DGND
DGND
DGND
DGND
DGND
VGL
VGL
VGL
VSH
VSH
VGH
VGH
U/D
GSP
POWER
GCK
CSCOM
CSCOM
YOBI1
YOBI2
YOBI3
YOBI4
YOBI5
YOBI6
YOBI7
YOBI8
DGND
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LG
INV+B
OFL
INV GND
1
2
3
TV
INVGND
INVGND
1
2
VD
T
E
R
M
I
N
A
L
P
W
B
R
U
N
T
K
0
7
0
3
C
E
Z
Z
V1IN
VGND
V1_L
V1_R
SGND
V1_SY
V1_SC
1
2
3
4
5
6
7
MV
LIGHT HOT
N. C
LIGHT HOT
1
2
3
HV
INV+B
OFL
INV GND
1
2
3
TV
JACK PWB
DUNTKA699DE
LED PWB
OPERATION PWB
DUNTKA696DE
MAIN PWB
INVGND
INVGND
1
2
VD
H_L
GND
H_R
NC
1
2
3
4
MN
H_L
GND
H_R
NC
1
2
3
4
MN
B
A
C
K
L
I
G
H
T
DUNTKA700DE
L
C
D
S
O
U
R
C
E
L
C
D
G
A
T
E
LMRDY
SCL1
SDA1
GND
MRDY
1
2
3
4
5
MC
POW2
POW1
KEY1
KEY2
GND
1
2
3
4
5
MS
POW2
POW1
KEY1
KEY2
GND
1
2
3
4
5
MS
DUNTKA6980DE
OVERALL SCHEMATIC DIAGRAM
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