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Troubleshooting
No picture
Check the AV board
DVI
DVI_SCL/DVI_SDA
HDMI
PC_SCL/PC_SDA
R
G
D-SUB
B
H
H
V
V
G
B
R
H/HV
V
S-VIDEO
IC1051
DVI EQUALIZER
<DS16EV5110>
PC_DDC_SW
PC_SOG
3
PC_HS
IC5302
2
5
PC_VS
<BA7078>
IC5351
SCART_SW
IC2001
5BNC_Y/G
IC2011
5BNC_CB/B
IC2021
IC2086
IC2091
IC2096
IC6304
AV_SOG
IC2031
IC2041
Y-SVIDEO
IC2051
C-SVIDEO
IC2052
RGB (10bit)
IC8001
DVI/HDMI
RECEIVER
<SII9127>
SI_HS
SI_VS
IC3061
IC8073
EEPROM
EEPROM
<PC DDC>
<DVI-HDMI DDC>
IC5303
13
SYNC
SEP.
IC5304
11
5BNC_Y_EX
1
20
5BNC_CB_EX
3
IC3071
5BNC_CR_EX
5
18
PC/AV RGB
SW
5BNC_R
8
<AD8183>
16
5BNC_B
10
5BNC_G
12
3
13
IC6301
SYNC
AV_HS
2
SEP
<BA7078>
11
AV_VS
5
-152-
Check the signals (RGB signals, H/V
sync signals, Component signals and
vide signals) at connector "K80A".
RGB (10bit)
IC4001
LVDS SW
<XC3S200A>
SCART_SW
PC_DDC_SW
DVI_DDC_SW
EDID_SCL_S5V/EDID_SDA_S5V
DVI_DDC_SW
R
DSUB_R
G
DSUB_G
B
DSUB_B
H
DSUB_H
V
DSUB_V
SCART_CV
SCART_CV
G
5BNC_G
B
5BNC_B
R
5BNC_R
IC6302
H
5BNC_H
IC6303
V
5BNC_V
S_Y
S_C
LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
57
61
22
18
14
29
25
21
10
6
2
17
13
5
1
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