When switched on it lighted up and there was no relay click. Signal meter needle was in the middle. So I did the service bulletins and changed voltage regulators to TIP41. After service bulletins the lights are no longer working. However unit still powers on and meters are where they should be but no relay click. I have literally rebuild the whole board as it was burnt, re-flowed the solder and where needed applied jumper wires. I have recapped it and double checked to make sure black earth wire is soldered where it should be still no relay click and no lights which were working before I messed with it. I have one confession though, during service upgrades I have gone for same value but higher wattage i.e 5 watts instead of 3 1/4. I have changed the 33 ohm and 2 fuse resistors, 22 and 10 ohm each to 5 watt. could this be the reason for relay not clicking. ? Could some one please guide me what am I missing here ? Many Thanks and Happy Easter.