problem w/ 92 integra reverse indiglo gauges

i got my gauges installed and it worked good for about 3 days and afterwards it stopped lighting up. I got it checked and it seems that the 2 small gauges(gas and temperature) only lights up. When I try to put on the 2 bigger gauges (speedometer and rev) the whole thing won't light up. I tested each of the 4 gauges but only the 2 small ones lights up. I don't really know what the problem is..Could someone please help...email me at [email protected]

Are the connections good?