Schematic Diagram
Samsung Electronics
7-9
B3.3V AND B1.2V OVER_VOLTAGE DETECT
delete
H: PROTECT L: WRITE
H: (D/L)
L: DEFAULT
H:(D/L)
L:DEFAULT
POWER CHECK INDICATOR LED
CONNECTOR WITH DMD POWER AND ETC
GND
GND
GND
GND
GND
B12V
DMD_FAN2
TEMP_FAN3
DMD_FAN1
FROM IR/LED/CONTROL PCB
GND
RX_MICOM_DEBUG
TX_MICOM_DEBUG
A3.3V
LED_BLUE
KEY_PWR
GND
LED_LAMP
KEY1
KEY2
GND
IR
A5V
GND
NC
MICOM DEBUG
MP DELETE
LED_STB
LED_TIMER
B12V
3
2
1
Q706
2
1
R764
2
1
R763
2
1
R720
2
1
R717
2
1
R715
2
1
R704
2
162
7R
2
1
51
7D
2
1
R762
3
2
1
Q705
2
1
R761
2
1
72
7R
2
1
41
7D
2
1
R822
2
1
R821
2
1
R820
2
1
R818
2
1
R819
2
1
R817
2
1
R816
2
1
R815
2
1
R757
C714
2
1 R775
3
2
1
D701
2
1
DZ701
2
1
R776
4
3
2
1
CN703
2
1
BD703
06
7R
95
7R
9
8
7
6
5
4
3
2
10
1
CN702
R766
R768
R769
C712
2
1
C711
85
7R
BD702
90
7D
80
7D
70
7D
60
7D
50
7D
40
7D
30
7D
R756
74
7R
84
7R
2
1
25
7R
R728
2
1
15
7R
94
7R
55
7R
45
7R
81
7R
R724
R723
R722
R721
91
7R
30
7P
O
BD701
10
7C
20
7R
9
8
7
6
5
4
3
2
13
12
11
10
1
CN701
20
7D
70
7R
TP709
01
7P
T
R773
TP708
TP707
TP704
TP706
TP705
TP703
TP702
TP701
R774
2
1
R745
C710
04
7R
9
8
7
6
5
44 34 24 14 04
4
93 83 73 63 53 43
33
32
31
30
3
29
28
27
26
25
24
23
22
12
02
2
91
81
71
61
51
41
31
21
11
10
1
10
7C
I
C713
3
2
1
Q703
R735
R736
R737
R708
3
2
1
Q702
60
7R
C705
70
7C
50
7R
C704
14
7R
C706
3
2
1
IC702
2
1
D713
R770
R772
R771
93
7R
9
8
7
6
5
4
3
2
14
13
12
11
10
1
IC704
R734
R714
4
3
2
1
SW701
R725
2
1
35
7R
R712
01
7D
83
7R
24
7R
34
7R
44
7R
C702
C703
8
7
6
5
4
3
2
1
IC703
3
2
1
Q704
80
7C
Q701
2
1
R703
R716
11
7D
21
7D
R701
R730
R729
X701
R731
R709
R710
2
1
R746
R713
R711
05
7R
R733
R732
C709
MH
OK
01
MH
OK
7.
4
100OHM
FGND
MICOM_EEPROM_WP
0OHM
PC_5V
HDMI1_5V
POWER_DET
A5V
X_TAL_CHIP
24.0MHZ
RT9818C-42PV
FN
00
1
A3.3V
1NF
50V
100OHM
)T
,F
,L
5T
(4
81
SS
1
)T
,F
,L
5T
(4
81
SS
1
100OHM
100OHM
10OHM
100OHM
100OHM
MH
OK
7.
4
FGND
HW_RESET
16V
100NF
04
4N
R-
S6
P1
6T
W
22PF
100OHM
FGND
FST3125MX
SCL_EEPROM
SCL_EEPROM_BAY
SDA_DOWN
SDA_EEPROM
SDA_EEPROM_BAY
SCL_DOWN
FGND
A5V
100NF
100OHM
100OHM
MH
OK
01
OVER_VOLTAGE_DOWN
LVDS_EN
MH
OK
2.
2
W0
1/
1
LAMP_ERROR
LED_TIMER
LED_LAMP
LED_STB
SW_9PIN_MICOM
MH
OK
7.
4
MH
OK
7.
4
MH
OK
7.
4
SMICOM_DOWN
MH
OK
7.
4
MH
OK
01
MH
OK
01
SW_DEBUG_RS232
LED_BLUE
FGND
KTC3875S-Y
SDA_EEPROM
SCL_EEPROM
MICOM_EEPROM_WP
100OHM
A3.3V
4.7KOHM
A3.3V
KTC3875S-Y
4.7KOHM
1KOHM
1KOHM
CDS3C30GTH
HDMI3_5V
A3.3V
SCL_DOWN
SDA_DOWN
100OHM
100OHM
B2
.6
ZL
R
B2
.6
ZL
R
10UF
16V
2KOHM
KEY_PWR
LED_BLUE
DMD_FAN1
LTST-C150GKT
25V
A5V
MH
OK
01
VLZ6V2B
DN
GF
100OHM
MH
OK
7.
4
A3.3V
KEY2
4.7KOHM
4.7KOHM
KEY1
100OHM
KEY_PWR
AGC_NIM
B3.3V
MH
OK
7.
4
100OHM
100OHM
100OHM
100OHM
TDB_MICOM
100OHM
RDB_MICOM
LED_LAMP
KEY2
-
-
-
-
IR
HDMI2_5V
-
FU
01
100NF
25V
1UF
50V
)T
,F
,L
5T
(4
81
SS
1
KPS-1105PYN
LED_STB
KEY1
MH
OK
7.
4
MH
OK
7.
4
SW_DDC
16V
DDP_READY
RESET_AMP
MMBD4148SE
100V
SCL_EEPROM
SW_DDC
V0
1
CPU_NRESET
BEAD_CHIP
BEAD_CHIP
TDA_MICOM_DEBUG
RDA_MICOM_DEBUG
10KOHM
MH
OK
01
27KOHM
MH
OK
01
100OHM
100OHM
IR
100OHM
100OHM
100OHM
100OHM
RDA_MICOM_DEBUG
100OHM
100OHM
100OHM
AFT_NIM
HDMI_CEC
100OHM
100OHM
100OHM
100OHM
B12V
A3.3V
A5V
A3.3V
FGND
FGND
FGND
FGND
FGND
DDC_VCC
22PF
JE200-AIT-NP-13
LED_TIMER
SOUND_MUTE
PWR_GOOD
SDA_EEPROM
10NF
DDC_WP
FGND
FGND
MH
OK
01
MH
OK
01
MH
OK
01
MH
OK
01
A2008WVO-10P
CN_S_010
B3.3V
0OHM
0OHM
0OHM
MH
OK
7.
4
MH
OK
7.
4
25V
100NF
B12V
BEAD_CHIP
TEMP_FAN3
DMD_FAN2
MH
OK
7.
4
A3.3V
4.7KOHM
A5V
100NF
25V
FGND
47KOHM
KTC3875S-Y
FGND
-
FGND
-
0OHM
0OHM
-
4.7KOHM
KTC3875S-Y
FGND
1KOHM
SMICOM_DOWN
POWER_DET
EMU_SDA
EMU_SCL
A3.3V
SW_POWER
A3.3V
100OHM
100OHM
FGND
16V
AT24C256BN-10SU-1.8
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
V8
4
HT
G0
3C
3S
DC
48V
V6
1
100NF
4.7KOHM
FGND
A5V
B3.3V
4.7KOHM
KTC3875S-Y
FGND
OVER_VOLTAGE_DOWN
B1.2V
2.2KOHM
TDA_MICOM_DEBUG
A5V
/RESET,RESET
VDD
GND
3B
GND
/OE3
3A
2B
2A
4B
/OE2
/OE4
VCC
4A
1B
1A
/OE1
E
B
C
E
B
C
SDA VSS
WP
VCC
SCL
A2
A1
A0
E
B
C
D
S
G
SE
RN
V3
DD
V
LM
WP
/1
MW
P/
1E
P
0M
WP
/0
EP
PB1/NIRQ2
PB2/FDI/NIRQ3
3E
P
2E
P
PB3/FDO/NIRQ4
PB4/PAT/CLKO/NIRQ5
PB5/MSCL
PB6/MSDA
1N
IH
OSCI
2N
IV
/2
MW
P/
7D
P
CN
1N
IV
OSCO
GND
VDD5V
PA3/RXDA
PA4/AD4
PA7/CLAMP/AD7
PD0/VOUT
PA5/1/2HO/AD5
PA6/1/2HO/AD6
AD
XT
/2
AP
LC
SD
/1
AP
AD
SD
/0
AP
0D
A/
0C
P
2N
IH
/3
MW
P/
6D
P
1D
A/
1C
P
2D
A/
2C
P
PD5/PWM4/P10
3D
A/
3C
P
BD
XR
/4
1P
/4
CP
BD
XT
/5
1P
/5
CP
6Q
RI
N/
61
P/
6C
P
PD1/HOUT
71
P/
NI
GO
S/
7C
P
PD3/PWM6/P12
PD4/PWM5/P11
PD2/PWM7/P13
PB0/NIRQ1
E
B
C
E
B
C
7-3-7 Main Board-7
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