BBK LT1914S Service Manual page 29

Liquid crystal display television
Table of Contents

Advertisement

5
+5V
NC
5V/2.5A
+5V
R165
R165
XP6
XP6
2.7K
2.7K
1
2
3
ON/OFF
4
C166
C166
R167 10K
R167 10K
CON4
CON4
470uF
470uF
1
16V
16V
D
V15
V15
2N3904
2N3904
GND
GND
NC
+3.3V_COMMON
+12V
12V/2A
XP7
XP7
1
2
3
C172
C172
C173
C173
4
470uF
470uF
0.1uF
0.1uF
CON4
CON4
25V
25V
GND
GND
Power Sequencing Diode
HUDSON供电是5V/0.75A
+5V
N16
N16
VD38
VD38
LM1117-1.8V
LM1117-1.8V
VD37
VD37
3
2
VIN
VOUT
DL4001MSCT
DL4001MSCT
DL4001MSCT
DL4001MSCT
GND
TAB
C178
C178
R-SOT4N-2.30-7.00-HX
R-SOT4N-2.30-7.00-HX
C
1
4
C177
C177
100uF/16V
100uF/16V
0.1uF
0.1uF
470uF/6.3V
470uF/6.3V
GND
NEED
+3.3V_COMMON
+5V
N17
N17
HEAT
AIC1084-33CMTR
AIC1084-33CMTR
1.5A Max
SINK
3
2
VIN
VOUT
4
Adjust
TAB
C181
C181
C180
C180
+
+
TO263
TO263
C182
C182
1
47uF/16V
47uF/16V
0.1uF
0.1uF
47uF/16V
47uF/16V
GND
C337
C337
+12V
0.1uF
0.1uF
C336
C336
C339
C339
470uF/25V
470uF/25V
470uF/25V
470uF/25V
GND
B
XP22
XP22
GND
C284 1nF
C284 1nF
ADD
N24
N24
AT1796-ADJ
AT1796-ADJ
3
GND
2
1
1
4
R267 33K
R267 33K
VI
FBK
5
2
CON3
CON3
ON
VO
R268
R268
10K
10K
预留用12V适配器供电
GND
GND
GND
GND
PCB MARK
M2
M2
M4
M4
M5
M5
1
1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
M6
M6
M7
M7
M12
M12
1
1
1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
CONN RECT 1
M8
M8
M9
M9
M10
M10
A
9
9
9
8
8
8
7
7
7
6
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
GND
GND
GND
5
4
PWR_ON
3
接3.3V屏
+5V
N14
N14
AIC1084-33CMTR
AIC1084-33CMTR
3
2
VIN
VOUT
4
Adjust
TAB
C169
C169
C170
C170
+
+
TO263
TO263
1.5A Max
1
0.1uF
0.1uF
VD36
VD36
47uF/16V
47uF/16V
1n4148
1n4148
+1.8V
GND
+3.3V_COMMON
+1.8V
+1.8V_CORE
FB7
FB7
BEAD
BEAD
FB4
FB4
BEAD
BEAD
+3.3V_COMMON
+3.3V_ADC
C176
C176
C179
C179
FB8
FB8
FB9
FB9
0.1uF
0.1uF
BEAD
BEAD
BEAD
BEAD
+3.3VA_ADC
FB10
FB10
FB11
FB11
BEAD
BEAD
BEAD
BEAD
+1.8V_ADC
+1.8V
FB12
FB12
FB5
FB5
BEAD
BEAD
BEAD
BEAD
+
+
+1.8V
+1.8V_RPLL
FB6
FB6
FB13
FB13
BEAD
BEAD
BEAD
BEAD
C338
C338
GND
0.1uF
0.1uF
1、使用1583时:C284-NC、N24-NC、C335-NC
N32
N32
1
8
2、使用1796时:C337-NC、C338-NC、C335-NC
BS
SS
2
7
R358-NC、C334-NC、N32-NC、
IN
EN
3
6
SW
COMP
R358
R358
4
5
ADD
GND
FB
C335
C335
MP1583
MP1583
NC
NC
2K7
2K7
+5V
FB19
FB19
C334
C334
BEAD
BEAD
10 nF
10 nF
FB18
FB18
BEAD
BEAD
GND
XP2
XP2
L14
L14
+5V_USB
1
22uH
22uH
2
3
C285
C285
C286
C286
4
VD45
VD45
IN5822
IN5822
470uF/25V
470uF/25V
220nF
220nF
CON4
CON4
GND
GND
GND
MM2
MM2
1
1
CONN RECT 1
CONN RECT 1
MM1
MM1
1
CONN RECT 1
CONN RECT 1
3
OCMADDR[0..18]
M11
M11
M13
M13
M14
M14
9
9
9
8
8
8
7
7
7
6
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
3
OCMDATA[0..7]
GND
GND
GND
3
ROM_WEN
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
CONN SOCKET 9
3
ROM_OEN
3
ROM_CSN
4
3
Standby
3
Standby
+3.3V_P
C320
C320
+
+
47uF/16V
47uF/16V
CHANGE
GND
C171
C171
+
+
47uF/16V
47uF/16V
+12V +5V
+3.3V_P
R170
R170
NC
R171
R171
R173
R173
+3.3V_I/O
3
PPWR
+3.3V_I/O_HUDSON
+3.3V_RPLL
PBIAS-LED
3
2N3904
2N3904
R178
R178
V18
V18
PBIAS
2
3
PBIAS
+3.3V_LVDS
10K
10K
R182
R182
3
PWM0
+3.3V_LBADC
+3.3V_I/O
OPTIONAL
R163
R163
WP#
WP#
N10
N10
29
DQ0
OCMADDR1
25
31
A0
DQ1
OCMADDR2
24
33
A1
DQ2
OCMADDR3
23
35
A2
DQ3
OCMADDR4
22
38
A3
DQ4
OCMADDR5
21
40
A4
DQ5
OCMADDR6
20
42
A5
DQ6
OCMADDR7
19
44
A6
DQ7
OCMADDR8
18
30
A7
DQ8
OCMADDR9
8
32
A8
DQ9
OCMADDR10
7
34
A9
DQ10
OCMADDR11
6
36
A10
DQ11
OCMADDR12
5
39
A11
DQ12
OCMADDR13
4
41
A12
DQ13
OCMADDR14
3
43
A13
DQ14
OCMADDR15
2
45
A14
DQ15
OCMADDR16
1
A15
OCMADDR17
48
9
A16
NC
OCMADDR18
17
10
A17
NC
CSRAM/A19
16
13
A18
NC
14
NC
OCMADDR[0..18]
ROM_CSN
26
15
CE#
RY/BY#
ROM_OEN
28
OE#
ROM_WEN
11
37
WE#
VCC
12
RESET#
47
27
BYTE#
VSS
46
VSS
GND
SST39VF088-70-4CEKE
SST39VF088-70-4CEKE
OCMDATA[0..7]
ROM_WEN
ROM_OEN
ROM_CSN
3
2
+5V
C165
C165
R166
R166
0.1uF
0.1uF
N13
N13
R168
R168
47K
47K
1
8
S1
D1
2
7
G1
D1
3
6
+12V
S2
D2
1K
1K
4
5
G2
D2
R169 47K
R169 47K
C282
C282
IRF7314
IRF7314
2
R264
R264
R-SOIC08N-1.270-6.00-HX
R-SOIC08N-1.270-6.00-HX
V16
V16
0.1uF
0.1uF
2N3904
2N3904
47K
47K
R290
R290
0R
0R
100uF/16V
100uF/16V
R265
R265
NC
1K
1K
R266 47K
R266 47K
GND
2
V27
V27
2N3904
2N3904
HDMI/AUDIO供电控制
GND
0R
0R
19寸屏时最大是5V/0.95A
0R
0R
R172
R172
Panel_Power
0R
0R
N15
N15
C174
C174
47K
47K
1
8
S1
D1
NC
2
7
G1
D1
0.1uF
0.1uF
3
6
S2
D2
C175
C175
4
5
G2
D2
0.1uF
0.1uF
R174
R174
IRF7314
IRF7314
GND
R-SOIC08N-1.270-6.00-HX
R-SOIC08N-1.270-6.00-HX
C305
C305
+
+
2N3904
2N3904
4K7
4K7
47uF/16V
47uF/16V
R175
R175
4K7
4K7
V17
V17
2
GND
C272
C272
+
+
+5V
+5V
47uF/16V
47uF/16V
GND
R177
R177
R176
R176
GND
1K
1K
10K/2K
10K/2K
R179
R179
OR 2K2
GND
2
V19
V19
+12V
2N3906
2N3906
1K/0
1K/0
C187
C187
C185
C185
C184
C184
+5V
ADD
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
R94
R94
2.5V~3V
0R
0R
BKLT_EN
R180
R180
GND
10K
10K
R181
R181
100K
100K
2N3904
2N3904
BRIGHT
4K7
4K7
V20
V20
GND
2
C183
C183
0.1uF
0.1uF
和FLASH(N10)排在一起,叠加起来
K6X4008T1F-YB70
K6X4008T1F-YB70
GND
GND
OCMADDR0
20
A0
OCMADDR1
19
A1
OCMADDR2
18
A2
OCMADDR3
17
A3
+3.3V_I/O
OCMADDR4
16
A4
OCMADDR5
NC
15
A5
OCMADDR6
14
A6
OCMADDR7
13
A7
OPTIONAL
C162
C162
C163
C163
OCMADDR8
3
A8
R164
R164
OCMADDR9
2
A9
0.1uF
0.1uF
0.1uF
0.1uF
OCMADDR10
31
10K
10K
10K
10K
A10
OCMADDR11
1
A11
HOLD#
HOLD#
OCMADDR12
12
A12
OCMADDR13
4
A13
OCMADDR14
GND
11
A14
OCMADDR15
7
A15
OCMADDR16
10
A16
ROM_OEN
32
OE
ROM_WEN
5
WE
CSRAM/A19
30
3
CSRAM/A19
CE1
6
CE2
OCMDATA0
OCMDATA1
OCMDATA2
R162
R162
OCMDATA3
+3.3V_I/O
OCMDATA4
OCMDATA5
10K
10K
OCMDATA6
OCMDATA7
OCMADDR0
3
SCSN
3
ROM_SDI
+3.3V_I/O
3
ROM_SDO
3
ROM_SCLK
GND
Title
Title
Title
Size
Size
Size
Date:
Date:
Date:
2
1
+5V_SW
+12V_A
+
+
D
C283
C283
GND
C
背光控制说明:
1、使用系统的PBIAS控制时:
R91-NC;R94-NC;R60-0欧姆
2、使用系统I/O的来控制时:
XP8
XP8
R91-0欧姆;R94-0欧姆;R60-NC
1
2
R179-0欧姆;R176-2K;
3
4
V19-NC;R177-NC
5
6
CONN RCPT 6
CONN RCPT 6
N11
N11
OCMDATA0
21
I/O0
OCMDATA1
22
I/O1
OCMDATA2
23
I/O2
OCMDATA3
25
I/O3
26
OCMDATA4
I/O4
OCMDATA5
27
I/O5
OCMDATA6
28
I/O6
OCMDATA7
29
I/O7
B
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
OCMADDR18
9
NC
8
VCC
+3.3V_I/O
24
GND
GND
NC
+3.3V_I/O
SERIAL FLASH 512K
C164
C164
0.1uF
0.1uF
N12
N12
SCSN
GND
1
8
CE#
VCC
ROM_SDI
2
7
HOLD#
SO
HOLD#
WP#
3
6
WP#
SCK
4
5
VSS
SI
SST25VF080
SST25VF080
GND
SOIC-8
ROM_SDO
ROM_SDO
A
ROM_SCLK
ROM_SCLK
<Title>
<Title>
<Title>
Document Number
Document Number
Document Number
Rev
Rev
Rev
C
C
C
<Doc>
<Doc>
<Doc>
Friday, January 26, 2007
Friday, January 26, 2007
Friday, January 26, 2007
Sheet
Sheet
Sheet
4
4
4
of
of
of
6
6
6
1

Advertisement

Table of Contents
loading

This manual is also suitable for:

Lt1514s

Table of Contents