VIORE PDP4210EA Service Manual page 94

4. Trouble shooting.
No display
Check each section with following method if there is problem, replace or repair that part.
If not go to the next section.
1. Connector
Confirm every Connector (PSU, Y-SUS, CTRL, Z-SUS)
⇒ module may not be normal by mis-connection which can not send signal and power.
Also Mis connection for a long time has a specific b/d failed.
CTRL B/D + Y-SUS CTRL B/D + Z-SUS
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CTRL B/D + X-B/D Signal input(LVDS)