No Video (Digital-Hdmi) - Samsung 2333HD Service Manual

4-4. No Video (Digital-HDMI)

Symptom The LED power turns on but the screen is blank when the DVI cable or HDMI cable is connected.
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Even though the LED power turns on, the screen is blank when connecting the DVI cable or
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HDMI cable.
Major
Check the DVI cable or HDMI cable connections.
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checkpoints
Check whether the LVDS cable is connected correctly to the panel.
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Check whether the lamp connector of the panel is connected correctly to the IP board.
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Diagnostics
Caution Make sure to disconnect the power before working on the IP board.
RA4002
RA4003
Power Indicator is off.
Lamp on, no video.
Yes
Check the connection
of HDMI cable?
Yes
③ Does the digital data appear
at D6005, D6007 (HDMI1) or
D6008, D6010(HDMI2)?
Yes
Does the digital data appear at
INPUT of IC4010 at RA4004,
RA4005 (HDMI1) or RA4002,
RA4003(HDMI2)?
Yes
Check a LVDS cable?
Replace lcd panel?
IC4010
RA4004,RA4005
D6005,D6007
Main Board Front
No
No
No
No
4. Troubleshooting
D6008,D6010
Input a HDMI cable.
Check HDMI cable.
Change the cable.
Check the IC4010.
Change a main PBA.
Please, Call to Samsung Co. LTD.
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