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14.27. DG-Board (1 of 2) Block Diagram
DG MICOM,DIGITAL SIGNAL PROCESSOR
TO
DG1
H1
HDMI_R
11
HDMI_L
13
BS_L
33
DVB_L
BS_R
DVB_R
31
DVB_CVBS
DVB_CVBS
35
SD_LED
17
SD_LED
TO
DG2
H2
10
SOS2
13
STB_RESET
SP_MUTE
SP_MUTE
12
AUDIO_MUTE
SOUND_MUTE
11
17
SDA1
18
SCL1
SDA2
20
SDA2
SCL2
21
SCL2
SDA3
SDA3
23
SCL3
SCL3
24
MAIN_Y/CVBS
34
MAIN_Y/V/G
MAIN_PB/C
MAIN_PB/C/R
32
MAIN_PR
MAIN_PR/B
30
RGB_CVBS
MAIN_CVBS2(RGB)
28
STB 5V
STB 5V
14
FB_OUT
26
AV2_QLINK
1
AV4_QLINK
2
6
AFC1
RMCN
3
LED_R
15
8
KEYSCAN
SRQ
9
TO
DG20
PA20
AC_ON/OFF
1
TUNER_MAIN_ON
TVON
3
Q4900
2
SOS
25
BT30V
MAIN 3.3V
23
22
MAIN 3.3V
MAIN 3.3V
20
SUB 3.3V
SUB 9V
18
SUB 9V
17
SUB 9V
15
MAIN 9V
MAIN 9V
MAIN 2.5V
13
MAIN 2.5V
12
9
SUB 5V
SUB 5V
7
MAIN 5V
MAIN 5V
STB 5V
5
STB 5V
TH-37/42PE55E
DG-Board (1 of 2) Block Diagram
IC4001
AUDIO AMP
7
1
Q4435
Q4434
MUTE
SOS2
M2_RST
IC1235
IIC BUFFER
7
SDAOUT
SDAIN
2
SCLOUT
SCLIN
IC1105
Q LINK SW
4
3
2
1
RGB_FB
AV2_QLINK
AV4_QLINK
AFC1
RM_IN
LED_R
KEYSCAN
M2_RST
IC4049
SOS
SUB 5V
AVR 3.3V
8
VIN
VOUT 1
5
CONT
IC1103
AVR STB 2.5V
STB 5V
2
3
VIN
VOUT
1
VDET
SUB9V2
5
6
2
3
Q4432
6
SDA1
3
SCL1
INV.
Q_LINK_SEL
Q1154
5
13
Q_LINK_OUT
Q1152
Q_LINK_IN
Q1153
Q1151,Q1150
IC4044
MAIN 2.5V
PLL 1.2V
AVR 1.2V
AD 3.3V
1
VIN
VOUT
5
IC4061
DLL 1.2V
AVR 1.2V
1
VIN
VOUT
5
IC1110
STB 5V
STB 3.3V
AVR 3.3V
STB 2.5V
4
5
VIN
VO
TO DV15
DG15
60
30
29
20
22
26
MAIN5V
IC4002
MAIN3.3V
AUDIO DAC
MCLK
1
10
AOUTR
BICK
2
3
SDTI
LRCK
4
A_DAC_PD
AOUTL
11
PDN
5
Q4410
6
SMUTE
Q4436
HDMI_DAC_MUTE
Q4431
Q4430
Q4433
SCL2L
SDA2L
MAIN_Y/CVBS
Q4006,Q4013
MAIN_PB/C
Q4012
MAIN_PR
Q4011
RGB_CVBS
Q4010,Q4015
CVBS1
SRQ
IC4008
MAIN 5V
AD 3.3V
AVR 3.3V
5
4
VIN
VOUT
24
16
18
17
7
2
5
4
13
12
11
82
SCL
SDA
81
A/D 10bit
76
30MHz
M
A/D 10bit
R
74
30MHz
A/D 10bit
72
30MHz
D
57
AIN9
S
51
FB
S
N
IC4024
MAIN 2.5V
MA
AVR 1.2V
1
3
VIN
VOUT
93
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