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HCD-ECL77BT/ECL99BT
HCD-ECL77BT/ECL99BT
5-6.
SCHEMATIC DIAGRAM - MAIN Board (3/8) -
1
2
MAIN BOARD
(3/8)
A
SD33
B
C
STB_3.3V
USB_5V
U10
U10
GMT_G527
GMT_G527
USB_5V
6
1
IN
OUT 1
USB_EN
4
USB_EN
EN
USB_FAULT
3
2
USB_FAULT
FLG
GND
5
D
ILIM
C79
C79
C35
C35
C38
C38
CE16
CE16
+ +
C11
C11
0.1uF/50V/X7R
0.1uF/50V/X7R
220uF/16V
220uF/16V
R102
R102
20K/1%
20K/1%
R102=20K,Ilim=1.8Amin
E
USB POWER SWITCH
3
4
5
SDRAM
U8
U8
SD33
MA0
23
2
DQ7
A0
DQ0
MA1
24
4
DQ6
A1
DQ1
MA2
25
5
DQ5
A2
DQ2
MA3
26
7
DQ4
A3
DQ3
MA4
29
8
DQ3
A4
DQ4
MA5
30
10
DQ2
A5
DQ5
MA6
31
11
DQ1
A6
DQ6
MA7
32
13
DQ0
A7
DQ7
MA8
33
42
DQ8
A8
DQ8
MA9
34
44
DQ9
A9
DQ9
MA10
22
45
DQ10
A10/AP
DQ10
MA11
35
47
DQ11
A11
DQ11
DBA0
20
48
DQ12
BA0/A13
DQ12
21
50
DBA1
DQ13
BA1/A12
DQ13
51
DQ14
DQ14
38
53
SDCLK
DQ15
DRAS#
RAS#
CLK
DQ15
37
CKE
SD33
DWE#
WE#
19
1
CS
VCC
DRAS#
18
14
DCAS#
CAS#
RAS
VCC
DCAS#
17
27
CAS
VCC
DWE#
16
SD33
DBA0
BA0
WE
3
VCCQ
DQM0
15
9
DBA1
BA1
DQML
VCCQ
DQM1
39
43
DQMH
VCCQ
49
SDCLK
DCLK
VCCQ
36
NC
40
6
NC
VSSQ
12
VSSQ
54
46
VSS
VSSQ
41
52
VSS
VSSQ
28
VSS
SDRAM_64Mb_M12L64164A-7T
SDRAM_64Mb_M12L64164A-7T
Compatible for footprint
USB_VCC1
R771
R771
FL1
FL1
USB_VCC1
D-
4
D+
1
C8
C8
C101
C101
C34
C34
+ +
0.1uF/50V/X7R
0.1uF/50V/X7R
100pF/50V/NP0
100pF/50V/NP0
CE14
CE14
R772
R772
220uF/16V
220uF/16V
TP40
TP40
TP41
TP41
Compatible with TJ2100
USB PORT
24
24
6
7
DQ[0..15]
(2)
DQ[0..15]
MA[0..11]
(2)
MA[0..11]
BA[0..1]
(2)
BA[0..1]
DQM[0..1]
(2)
DQM[0..1]
(2)
DCLK
DCLK
(2)
CAS#
CAS#
(2)
RAS#
RAS#
(2)
WE#
WE#
DRAM
CHARGE_SWITCH
XP7
XP7
4PIN/2.0mm
4PIN/2.0mm
NC/0
NC/0
1
1
ELE900
ELE900
2
STB_3.3V
2
3
3
3
2
4
4
NC/0
NC/0
U9
U9
ESD1
ESD1
ESD2
ESD2
D+
1
7
USB_DP
D+
HSD2+
D-
2
6
USB_DM
D-
HSD2-
NX3DV42GU
NX3DV42GU
8
S=1:2
ON 1
OFF
S=0:1
ON 2
OFF
USB_DP
USB_DM
CHG_EN
R94
R94
10K
10K
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