nokia 8210 LED problem...

[AgentJ]

Hello.. the 3 left LEDs on my 8210 keypad do not seem to be working.. but the rest are working fine.
what could be the cause of this and how would I go about fixing it?

thanks

[sergo_zmeia]

Disaseble Your phone...get a multimeter and measure them..diodes are in paralel so I guess that You must change them..
/sorry for my english/
Good luck!
Regards!
Sergo_Zmeia

[AgentJ]

oh ok.. thanks.. i'll give it a go!
also.. although they run in parallel, doesnt each set of 3 run in series? So is it likely that only 1 LED is not working? and not all 3