Akai LCT2662, Service Manual

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公司名称
公司地址
图名
图号
绘制
文件名
当前时间
版本号
校对 审核
当前日期
深圳市凯欣达电子有限公司
深圳市车公庙泰然工业区
210
栋三楼
EF
座
30TV
2
04-CODER.SCH
4
2003.06.12
VCC is 5V power supply from the power socket VDD is 3.3V digital power supply, +5 is 5V
analog power supply for U1 VPC3230D; VTT is 5V power supply for U2 FI1256MK2 (TV Tuner)
VDD
GND
C53
0.1
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
TEST
7
VCC
8
U5
24C16
+5
C52
0.1 C51
0.1
GND GND
C47
10uF
C48
0.1
+5
VDD
C35
1nF C34
1nF C41
0.22 C40
0.22
C50
0.1 C49
0.1
C43
47nF
C42
47nF
VDD
GND
C59
20pF
C58
20pF
X1
20.25M
GND
GND
GND
R55
75 L11
3.3uH
R54 75
C57
330pF
C56
330pF R57 75 L10
3.3uH
R53 75
R56 75 L9
3.3uH
R52 75
C55
330pF
GND
R58 75
R51 75
R50 75
C39
0.22
C38
0.22
C37
0.22
C30
0.68
C31
1nF
C28
0.68
C27
0.68
R49 2K
VIN4
75
VIN3
74
VIN2
73
VIN1
72
CIN
71
Y1/G1
2
U1/B1
1
V1/R1
3
FBIN1
79
Y2/G2
5
U2/B2
4
V2/R2
6
XTALI
62
XTALO
63
VOUT
70
VRT
66
VREF
78
VGAV
17
Y7
31
Y6
32
Y5
33
Y4
34
Y3
37
Y2
38
Y1
39
Y0
40
UV7
41
UV6
42
UV5
43
UV4
44
UV3
47
UV2
48
UV1
49
UV0
50
LLC2
27
LLC
28
AVO
54
HCLP
55
HS
56
VS
57
INTLC
53
OE#
18
FFIE
19
FFWE
20
FFRST
21
FFRE
22
FFOE
23
TEST
16
SCL
13
SD
A
14
RST#
15
VDD
10
VDDC
AP
9
GNDC
AP
12
P
L
VDD
29
YVDD
36
C
VDD
45
S
P
VDD
52
AF
VDD
69
IS
VDD
76
VS
T
B
Y
59
CLK
5
60
F
P
DAT
58
CLK
2
0
24
AS
GND
7
AS
GND
64
GND
11
AP
GND
25
AP
VDD
26
P
L
GND
30
YGND
35
C
GND
46
S
P
GND
51
AF
GND
65
IS
GND
68
IS
GND
77
IS
GND
80
I2C
S
E
L
67
U4
VPC3230D
C29
0.68
C36
0.22
C32
1nF
VDD +5
GND
C44
47nF
C33
1nF
GND
C45
10uF
C46
10uF
GND GND GND GND
A.1
VIODD
VINVS
VINHS
VHREF
VINCK
VINY7
VINY6
VINY5
VINY4
VINY3
VINY2
VINY1
VINY0
V-BOX1
BLU
GRN
RRED
VOUT
SDA
SCL
(VSTBY)
VIDEO BUS
RST1#
SCL
S-CIN
S-YIN
AV-IN
VREF TV-VIN
SCL
SDA
RST1#
VOUT
VID_BUS
V-BOX
V-RED
V-BLU
V-GRN
5
5,6,9,10,11
2
5
5,6,8,9
2
SAGND
AV-IN
SDA
SCL
RP7
47
RP8 47
L38
11R/100MHZ
L39
11R/100MHZ
G
B
R
VIN4
VIN4
BY
BX
CY
C
CX
INH
VEE
VSS
C
B
A
AX
AY
A
B
VDD
U22
CD4053
YCr
YCb
B
+12
R
G
YY
R185 10K
Q9
9014
R186 1K
C76
0.1
S/Y
YSOG
GND
GND
GND
YY
YCb
YCr
X
1
Y
2
HD-Y1
HD-Y
X
1
Y
2
HD-Pb1
HD-Pb
X
1
Y
2
HD-Pr1
HD-Pr
R212
10K R214
10K R216
10K R218
10K R220
10K R222
10K
YCr2
YCb2
YY2
YY YCb YCr YCb2 YY2 YCr2
TGND
1
2
CN3
CON2
1
2
3
4
5
6
7
8
9
S-VIDEO1
CON9
S-CIN
S-YIN
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND
TV-VIN
R245
0_NS
R246
0_NS
R247
0_NS
S1A
2
S2A
3
S1B
5
S2B
6
S1C
11
S2C
10
S1D
14
S2D
13
IN
1
EN
15
DA
4
DB
7
DC
9
DD
12
VC
C
16
GND
8
U2
4
PI5V
330
GND
VSS
S-B
S-G
S-R
RGB/V
V-BOX
BLU
GRN
RRED
R251 6.8K
C254
0.22
C255 0.22
C256 0.22
R249
0_NS
R250
0_NS
R248 0_NS
V-BOX1
R71 1.2K