akira LCT-37KX1DSTP, Service Manual

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1 2 3 4 5 6
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B
C
D
6 5 4 3 2 1
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B
A
Title
Number Revision Size
Orcad B
Date: 9-Oct-2006 Sheet of
File: E:\ \Pcb&Sch\ex52.ddb
电视
Drawn By:
P_29 P_48 P_30 P_35 P_37 P_25 P_52 P_45 P_44 P_46 P_39 P_51 P_36 P_40 P_31 P_49 P_26 P_24 P_28 P_50 P_41 P_27 P_34 P_47 P_32 P_42 P_43 P_53 P_54 P_55 P_56 P_57 P_59 P_58 P_60 P_62 P_61 P_63 P_64
CVBS1
CVBS3
PB_B2
CVBS2
CVBS3
CVBS2
CVBS1
C_
PB_B2
PR_R2
Y_G2 Y_G1
PR_R1
PB_B1
VR
EFN
_
1
VR
EFN
_
3
VR
EFP_
3
VR
EFP_
2
VR
EFP_
1
VR
EFN
_
2
VREFN_2
VREFP_1
VREFN_3
VREFP_3
VREFN_1
VREFP_2
PAVD
D
1
PAVD
D
2
PD
VD
D
A
V
DD_
A
DC1
A
V
DD_
A
DC2
A
V
DD_
A
DC3
PAVD
D
V
DDL
VSSL
PDVDD
PAVDD
PLF2
PAVDD2
PAVDD1 VDDL
MLF1
AVDD_ADC3
AVDD_ADC2
AVSS_
AD
C
1
PAVSS2 PAVSS1 PAVSS PD
VSS
AVSS_
AD
C
3
AVSS3_BG_ASS AVSS_
AD
C
2
PLF2
MLF1
AVDD3_AVSP2
AVDD3_AVSP2
AVSS3_BG_ASS
AVSS_ADC3
AVSS_ADC2
AVSS_ADC1
PR_R1
Y_G1
PR_R2
PB_B1
C_
Y_G2
P
_33
P
_38
P_40
P_33
P_38
VSSH
P_24
P_56
P_36
P_37
AVSS_ADC1 AVSS_
AD
C
3
AVSS_
AD
C
2
P_29
P_27
P_31
P_28
P_26
P_30
DIN20
P_34
DIN21
DIN22
DIN23
P_35
P_39 AVDD_ADC1
EXCVBS_OUTP
EXCVBS_OUTP
EXCVBS_OUTN
EXCVBS_OUTN
PDVSS
PAVSS1
P_50
PAVSS
PAVSS2
P_32
VSSL
P_51 P_25
VSSH
P_41
VSSH
C53
0.1uF
C26
20pF
R590
470
R24
0_DNS
R865 0_DNS
C45
0.1uF
C61
0.1uF
R29
75_DNS
C32
10uF/16V
R30
75_DNS
1 2
FB4
150_Ohm_600mA
R25
75_DNS
1 2
Y1
14.318MHz
C19
0.1uF
R864 0
R12
10K
C52
0.1uF
C72
0.1uF
C47
0.1uF
R591
2.2K
C23
0.1uF
R586
75
C13
0.1uF
C469
10uF/16V
C42 2700pF
C35 2700pF
C14
0.1uF
R32
75_DNS
C9
0.1uF
R27
75_DNS
C813
0.1uF
C17
0.1uF_DNS
C18
0.1uF_DNS
1 2
FB64
150_Ohm_600mA
R592
1.5K
C71
0.1uF
C29
0.1uF
C12
0.1uF
C56
0.1uF
R21
510
R565
22
R566 22
R28
75_DNS
R585
1.2K
C39
10uF/16V
R587 240
L13 2.2uH
C37
0.1uF
C21
0.1uF
R26
75_DNS
C43
10uF/16V
C8
0.1uF
C7
0.1uF
C64
10uF/16V
C30
10uF/16V
C60
0.1uF
R873
0
C470 10uF/16V
R584
22K
L12 2.2uH
1 2
FB7
150_Ohm_600mA
C22
0.1uF
C814
10uF/16V
C41
10uF/16V
C25
20pF
C57
0.1uF
C44
0.1uF
C51
0.1uF
C16
0.1uF_DNS
C471
30pF
C48
10uF/16V
C38
0.1uF
R588 75
L14 2.2uH
C11
0.1uF
C49
0.1uF
C10
0.1uF
SVP-EX [256]
(2 of 2)
XTALO
1
XTALI
256
P
AVS
S
255
P
AVDD
254
P
DVS
S
253
P
DVDD
252
V
R
EFP_
1
241
VREF
N_
1
240
AVS
S
_
ADC1
239
AVDD_
ADC1
238
AIN_N3
249
Y_G2
248
AIN_N2
247
Y_G1
246
AIN_N1
245
CVBS3
244
CVBS2
243
CVBS1
242
CVBS_OUTP
236
CVBS_OUTN
237
AVS
S
3
_
B
G_
AS
S
235
AVDD3
_
AVS
P
2
234
V
R
EFP_
2
230
VREF
N_
2
229
AVS
S
_
ADC2
228
AVDD_
ADC2
227
PB_B1
232
PB_B2
233
C
231
V
R
EFP_
3
224
VREF
N_
3
223
AVS
S
_
ADC3
222
AVDD_
ADC3
221
PR_R2
226
PR_R1
225
VSSC
215
VDDC
214
V
SSH
205
VDDH
204
VSSC
182
VDDC
167
VSSC
164
VDDC
149
VSSC
146
VDDC
143
VDDL
128
V
SSL
127
VDDC
113
VSSC
110
VDDC
107
VSSC
92
VDDC
89
VSSC
74
VDDH
19
V
SSH
20
H
21
V
22
DE
23
P
_24
24
P
_25
25
P
_26
26
P
_27
27
P
_28
28
P
_29
29
P
_30
30
P
_31
31
P
_32
32
P
_33
33
P
_34
34
P
_35
35
P
_36
36
P
_37
37
P
_40
40
P
_41
41
VDDC
9
VSSC
8
MLF1
3
PLF2
6
AIN_HS
10
AIN_VS
11
PA
V
SS2
7
P
AVDD2
5
PA
V
SS1
4
P
AVDD1
2
P
_38
38
P
_39
39
P
_42
42
P
_43
43
P
_44
44
P
_45
45
P
_46
46
P
_47
47
P
_48
48
P
_49
49
P
_50
50
P
_51
51
P
_52
52
P
_53
53
P
_54
54
P
_55
55
P
_56
56
P
_57
57
P
_58
58
P
_59
59
P
_60
60
P
_61
61
P
_62
62
P
_63
63
P
_64
64
VDDH
65
V
SSH
66
VDDC
67
VSSC
68
DIN23
69
DIN22
70
DIN21
71
DIN20
72
VDDC
184
VSSC
185
VDDH
186
V
SSH
187
VDDC
198
VSSC
199
VDDC
251
VSSC
250
U1B
SVP-EX_256
B
C
E
Q15
MMBT3906
C62
0.1uF
R31
75_DNS
C58
0.1uF
C472 0.1uF
C59
0.1uF
C20
0.1uF
C55
0.1uF
1 2
FB10
150_Ohm_600mA
R583
470
C36
10uF/16V
1 2
FB9
150_Ohm_600mA
C24
0.1uF
C69
0.1uF
C54
0.1uF
B
C
E
Q16
MMBT3904
R22
75_DNS
C15
0.1uF
C40
0.1uF
R589
22K
C31
0.1uF
1 2
FB1
150_Ohm_600mA
C46
10uF/16V
C50
10uF/16V
C27
0.1uF
C63
0.1uF
C70
0.1uF
VD1_8
GND
GND GND
GND
GND
VD1_8
VD1_8
GND
VL1_8
VL1_8
VL1_8
VD3_3
GND
VD3_3
GND
GND
VD1_8
VD3_3
GND
VA1_8
VCC
GND
AGND
AGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
AGND
3.3V_SB
VD3_3
GND
GND
TV_MAIN
L_IN1
C_IN1
CVBS_2 PB_IN
VGA_RIN PR_IN
VGA_BIN
VGA_GIN Y_IN
VGA_VSIN
VGA_HSIN
DHS_2EX
DVS_2EX
DE_2EX
DIN[0..23]
TXOUT3-
TXCLK+
TXCLK-
TXOUT2-
TXOUT1-
TXOUT0-
CLK_2EX
PRELIMINARY
Place 75 ohmresistors close toSVP-EX
For EX52 to use this table
MLF1
PLF2
MLF1
PAVDD1
PAVSS1
PLF2
VDDL
PA
V
SS2
PA
V
SS1
P
AVS
S
P
DVS
S
AVS
S
_
ADC1
AVS
S
_
ADC2
V
SSH
AVS
S
_
ADC3
A
V
SS_
BG
_
A
SS
V
SSL
VSSH
VSSH
VSSL
AVDD_
ADC2
AVDD3
_
AVS
P
2
AVDD_
ADC1
AVDD_
ADC3
P
AVDD
P
AVDD
P
AVDD1
P
AVDD2
GND
VDDL
VREFN_3
VREFP_3
VREFN_2
VREFP_2
VREFN_1
VREFP_1
PAVDD2
PAVSS2
PDVDD
PDVSS
PAVDD
GND
PAVSS
AVSS_ADC1
AVDD_ADC2
AVSS_ADC2
AVDD_ADC3
AVSS_ADC3
AVDD3_AVSP2
GND
AVDD_ADC1
AVSS3_BG_ASS
VA1_8
GND
VA1_8
VA1_8
GND
VD3_3
GND
GND
AVS
S
_
ADC1
AVS
S
_
ADC2
AVS
S
_
ADC3
V
R
EFP_
3
VREF
N_
3
V
R
EFP_
2
VREF
N_
2
V
R
EFP_
1
VREF
N_
1
EXCVBS_OUTN
EXCVBS_OUTP
GND
EXCVBSout
P_39
EXCVBS_OUTP
EXCVBS_OUTN
CVBS1
CVBS2
CVBS3
C
CVBS1
CVBS2
CVBS3
C
Y
Pr
Y
Pb
VGA_R
VGA_G
VGA_B
Pb
Pr
VGA_G
VGA_B
VGA_R
P_38
P_33
P_24
P_32
P_25
P_50
P_51
P_40
P_41
DIN3 DIN4 DIN6 DIN7 DIN5 DIN0 DIN1 P
_56
DIN8 DIN2
DIN1
0
DIN9
DIN1
1
P
_51
P
_50
DIN1
2
DIN1
5
DIN1
3
DIN1
4
DIN1
6
DIN1
7
DIN1
8
DIN1
9
P
_41
P
_40
P
_39
P
_38
P
_37
P
_36
P
_35
P
_34
P
_33
P
_32
P
_31
P
_30
P
_29
P
_28
P
_27
P
_26
P
_25
P
_24
P_56
P_26
P_27
P_28
P_29
P_30
P_31
P_34
P_35
P_36
P_37