4-21
4. Troubleshooting
No video (HDMI 1, 2 - Digital signal)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the HDMI source.
-
Check the HDMI switch, Check the Main Chipset.
-
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
Does the signal appear at
CN601 (Pin#12 , #7 )(HDMI1)
CN604 (Pin#12 , #7 )(HDMI2)
(HDMI RX_Clk , RX_Data) ?
Does the digital data appear at
TP-, E_TXCLK- ,
, O_TXCLK-
Yes
Yes
Yes
Yes
Check a set in the 'Stand-by mode'.
Input the HDMI signal properly.
Please, Contact Tech support.
Check CN601,CN602.
Check HDMI cable.
Change the Main Assy.
Check IC1111 (X5).
Change the Main Assy.
No
No
No
No
No
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Check the HDMI source and
check the connection of HDMI cable ?
Check the LVDS cable?
Check the T-Con B'd?
Replace the LCD panel?
3
2
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LE32D400E1W
Страница 20: ...2 14 2 Product specifications 2 4 2 e Manual How to view the e Manual ...
Страница 21: ...2 15 2 Product specifications ...
Страница 31: ...4 3 4 Troubleshooting Main Board_Bottom ...
Страница 33: ...4 5 4 Troubleshooting Main Board_Top ...
Страница 34: ...4 6 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output ...
Страница 36: ...4 8 4 Troubleshooting Main Board_Top ...
Страница 37: ...4 9 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Страница 39: ...4 11 4 Troubleshooting Main Board_Top ...
Страница 40: ...4 12 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Страница 42: ...4 14 4 Troubleshooting Main Board_Top ...
Страница 43: ...4 15 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Страница 45: ...4 17 4 Troubleshooting Main Board_Bottom ...
Страница 46: ...4 18 4 Troubleshooting WAVEFORMS 7 Speaker out ...
Страница 48: ...4 20 4 Troubleshooting Main Board_Bottom ...
Страница 50: ...4 22 4 Troubleshooting Main Board_Top ...
Страница 51: ...4 23 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output ...
Страница 53: ...4 25 4 Troubleshooting Main Board_Top ...
Страница 54: ...4 26 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Страница 56: ...4 28 4 Troubleshooting Main Board_Top ...
Страница 57: ...4 29 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Страница 59: ...4 31 4 Troubleshooting Main Board_Top ...
Страница 60: ...4 32 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Страница 62: ...4 34 4 Troubleshooting Main Board_Bottom ...
Страница 63: ...4 35 4 Troubleshooting WAVEFORMS 7 Speaker out ...
Страница 78: ...4 50 4 Troubleshooting TOP BOTTOM INNER 1 INNER 2 ...
Страница 79: ...4 51 4 Troubleshooting Non Filp UE22D5003BW UE19D4003BW PCB ...
Страница 80: ...4 52 4 Troubleshooting TOP BOTTOM INNER 1 INNER 2 ...
Страница 83: ...4 55 4 Troubleshooting UD5003 40 Model Inch CODE P N UD5003 40 BN44 00473A PSLF121A03S ...
Страница 85: ...4 57 4 Troubleshooting SMPS_LD503 32 Model Inch CODE P N LD503 32 BN44 00469B IV40F1_BHS ...
Страница 87: ...5 2 5 Wiring Diagram 19 22 Main Board SMPS TCON Function IR SPEAKER SPEAKER CN1201 CN302 CN1601_HD CN201 ...