Rigol DS2102...original_Channel 1 DEAD

[hmlittle59]

Hello Rigol Experts,

I've damage Channel 1.  It's NOT working.  Channel 2 seems to be OK.   Way, way, way out of WARRANTY.   What should I look for if I decide to take it apart.  Three (3) weeks ago I just purchased the Bundle Package and would hate to kick it to the curb(it has been very faithful).

1) Channel 1 NOT working
2) Auto works on Channel 2.....NOT #1

Help
Thanks
Howard