Samsung UN32J4000AF Service Manual page 23

4. Troubleshooting
No picture (HDMI 1, 2 - Digital Signal)
„
Diagnostics
4-4
If the LED of POWER is off,
check Back Light is turn on
Yes
Check the SelfTest.
(Support Self Diagnosis Picture Test)
Remain other Problem
Yes
choose the HDMI SOURCE
 Check the HDMI CONNECTOR
Yes
Check a below signal
CN401 CN404
(Pin#12,10 , #1#3, #4#6, #7#9 )(HDMI1)
(HDMI RX_Clk , RX_Data)
Yes
Check a below signal
TP-EVEN_TXCLK+, EVEN_TXCLK-
TP-EVEN_TX*+, EVEN_TX*-
Yes
Check the LVDS
/ Change the LCD panel
No Check what is status 'Stand-by' or not
No Check for connecting external device
No Input the HDMI signal
Check CN401,CN404
No Check the HDMI cable
Change the Main Assy
Check IC1001 (XL1)
No
Change the Main Assy.