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1
2
A
5V_STB
4K7ohm-0402-±5%-1/16W
4K7ohm-0402-±5%-1/16W
100ohm-0402-± 5%-1/16W
100ohm-0402-± 5%-1/16W
RV15
RV17
RV16
VGA_SDA
UART-TX/DDC
HS_VGA
VS_VGA
RV18
VGA_SCL
UART-RX/DDC
B
RV13
GND
AV5
C
1
COAX
COAX
2
GND
3
AV_L
L
4
GND
5
AV_R
R
6
GND
AV3-8.4-07C(
)-
AV4
1
Y_Y
Y
2
GND
3
Y_Pb
Pb
4
GND
5
Y_Pr
Pr
D
6
GND
NC/CYB-3.2-2DW28B-1-100(R)
AV3-8.4-07C(
)-
GND
1
2
3
4
5
RV4
75ohm-0402-±5%-1/16W
RV1
CV1
NC/10pF-0402-NPO-± 5%-50V
33ohm-0402-±5%-1/16W
0.047uF-0402-X7R-±10%-16V
AV7
WLHD-051A
33ohm-0402-±5%-1/16W
0.047uF-0402-X7R-±10%-16V
11
1
TXD
R
6
GND
RV6
GND
12
2
SDA
G
7
GND
13
3
HS
B
75ohm-0402-±5%-1/16W
8
GND
NC/10pF-0402-NPO-± 5%-50V
14
4
VS
RXD
68ohm-0402-±5%-1/16W
9
RV2
5V
0.047uF-0402-X7R-±10%-16V
CV2
15
5
SCL
DET
RV7
10
GND
GND
RV8
GND
RV11
RV3
VGA_VS
75ohm-0402-±5%-1/16W
RV12
VGA_HS
NC/10pF-0402-NPO-± 5%-50V
33ohm-0402-±5%-1/16W
CV3
0.047uF-0402-X7R-±10%-16V
RV14
100ohm-0402-± 5%-1/16W
100ohm-0402-± 5%-1/16W
GND
10Kohm-0402-±5%-1/16W
10Kohm-0402-±5%-1/16W
NC/AV1-8.4-17C( )-
AV9
1
AV_L
L
2
GND
GND
1
AV_R
R
2
GND
GND
AV10 NC/AV1-8.4-17C( )-
RI6
AV_L
AV6
1
AV_L
L
2
GND
RI5
AV_R
3
AV_R
R
4
GND
GND
-
3
4
5
6
7
AV8
PJ-325
CV4
VGA_RIN
15Kohm-0402-±5%-1/16W
18Kohm-0402-±5%-1/16W
CV6
15Kohm-0402-±5%-1/16W
VGA_GIN
18Kohm-0402-±5%-1/16W
0.1uF-0402-X5R-± 20%-16V
0.1uF-0402-X5R-± 20%-16V
CV7
GIN0M
CV8
VGA_BIN
CN15
4
USB_5V
3
USB_M
2
USB_P
1
GND
NC/4PIN-2.0-D-H-G
RI34
Y_Y
CI2
RI1
GND
CI6
AV_L/
AV_LIN
Y_Pb
RI3
15Kohm-0402-±5%-1/16W
RI32
18Kohm-0402-±5%-1/16W
0.1uF-0402-X5R-± 20%-16V
GND
CI5
AV_R/
AV_RIN
Y_Pr
RI2
15Kohm-0402-±5%-1/16W
RI33
18Kohm-0402-±5%-1/16W
0.1uF-0402-X5R-± 20%-16V
GND
6
7
- 32 -
Service Manual
Model No.: 48E2500
8
9
10
1
GND
GND
5
ERO
RV19
2
CV19
PC_RIN
RSPK
3
LSPK
RV20
4
CV20
PC_LIN
ELO
RV22
RV21
GNDGND
AV21
1
USB_5V
5V
2
USB_M
DM
3
USB_P
DP
4
GND
5
GND
6
GND
CF3
CF41
USB-042M-002DP
GND
GND
CI8
HD1_SOG
CI9
HD1_Y
220ohm-0402-± 5%-1/16W
1000pF-0402-X7R-± 10%-50V
RF51
SPDIF_OUT
33ohm-0402-±5%-1/16W
0.047uF-0402-X7R-±10%-16V
NC/10pF-0402-NPO-± 5%-50V
75ohm-0402-±5%-1/16W
RI36
CI36
HD1_Pb
75ohm-0402-±5%-1/16W
33ohm-0402-±5%-1/16W
0.047uF-0402-X7R-±10%-16V
CI38
RI38
HD1_Pr
75ohm-0402-±5%-1/16W
33ohm-0402-±5%-1/16W
NC/GQ-03-08
0.047uF-0402-X7R-±10%-16V
NC/0ohm-0402-± 5%-1/16W
8
9
10
11
12
A
B
RF1
F2
5V_M
USB0_DM
RF41
RF42
USB0_DP
0ohm-0402-± 5%-1/16W
NC/FSMD110
5R1ohm-0402-± 5%-1/16W
5R1ohm-0402-± 5%-1/16W
1uF-0402-X5R-± 20%-6.3V
NC/10uF-0603-X5R-± 20%-6.3V
C
CF51
SPDIF_OUT'
COAX
CF52
RF52
GND
100ohm-0402-± 5%-1/16W
0.1uF-0402-X5R-± 20%-16V
330pF-0402-X7R-± 10%-50V
SPDIF_OUT'
5V_M
AV26
IR Transmitter
RF2
1
Vin
COAX
2
Vcc
3
GND
D
4
GND
5
GND
GND
11
12
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Troubleshooting
