I replaced the 6 illumination bulbs in the instrument cluster with blue LED's in holders (Narva), the result was excellent, but after a week 3 of the LED's stopped working, when I removed the cluster I found that the circuit to these 3 LED's had been burnt out, there were also some scorch marks where the cluster plugs in. I removed one of the LED's from the holder and found that it only had a 390 ohm resistor, is this the cause of the problem?