suzuki Bandit 600 K3 clocks?

When I switch the bike on to start her, the clocks light up the neutral and oil lights come on ok. The bike starts no problem. But the rev counter, speedometer,clock,tachometer,fuel gauge and odometer don't work. I have checked all the conections for continuity and the clocks on my mate bike and all seems well. But I still can't get them to work on my bike. can you give me some suggestions please.