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Sounds like your laptop doesn't have enough power output to the modulator or the wrong type of signal to run 3 TVs. What type of connection do you use for your show TV? You may not need the modulator if the HP output is TV ready (S-Video or RCA plug) Try unplgging 2 of the TVs from the modulator and see if you still get snow. If not then plug a second one in and check. Then the third. Every TV you plug in is going to drop the signal level. Too many TVs and signal level drops too low for broadcast, so they go to snow or blackout depending on the type of TV.
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Dale Douglass 2nd Generation Karaoke I am not a member of the MTU Staff.
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