Samsung N64D Service Manual page 66

4-1-3. No video (HDMI - Digital signal)
Symptom No video with HDMI input.
-
Check your source on the TV.
-
Major
Check your source content.
-
checkpoints
Check all connections.
-
Diagnostics
3
2
Caution Make sure to disconnect the power before working on the IP board.
40"
Power indicator LED is off.
Lamp(Backlight) on, no video
Yes
Check the HDMI source and
check the connection of HDMI cable
Yes
Does the signal appear at
CN803 (Pin#12 , #7 )(HDMI1)
CN801 (Pin#12 , #7 )(HDMI2)
(HDMI RX_Clk , RX_Data)?
Yes
Does the digital data appear at
Pin #19,20,34,35 (LVDS Data clk)
of LVDS connector?
Yes
Check the LVDS cable?
Replace the LCD panel?
52"
No
in the 'Stand-by mode'.
No
Input the HDMI signal properly
Check CN802, CN901, CN902
Check HDMI cable
No
Change the Main PCB
40" : BN94-02945D
52" : BN94-02945E
Check IC201 (Saturn4)
No
Change the Main PCB
40" : BN94-02945D
52" : BN94-02945E
No
Please, Contact Tech support
4. Troubleshooting
Check a set
4-7