Samsung LN26D450G1G, Руководство по обслуживанию

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4-7
4. Troubleshooting
4-1-4. No video_HDMI1, 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 Chelsea.
-
This may happen when the LVDS Cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
No
Does the signal appear at
CN1002 (Pin#12, #7) (HDMI1)
CN1003 (Pin#12, #7) (HDMI2)
(HDMI RX_Clk, RX_Data)?
Does the digital data appear at
TP-EVE, EVEN_TXCLK-,
OD, ODD_TXCLK-?
Yes
Yes
Yes
Yes
Yes
Check a set in the 'Stand-by mode'.
Input the HDMI signal properly.
Please, Contact Tech support.
Check CN601, CN602,
CN603, CN604 Check HDMI cable.
Change the Main Assy.
Check IC1001 (X5).
Change the Main Assy.
No
No
No
No
Power indicator LED is off.
Lamp (Backlight) on, no video?
Check the Self Diagnosis
(Support

Self Diagnosis

Picture Test)
Dose the promblem still exist self diagnosis?
Check the HDMI source and
check the connection of HDMI cable?
Check the LVDS Cable?
Check the T-Con Board?
Replace the LCD Panel?
3
2
Caution Make sure to disconnect the power before working on the IP board.