lost chroma on my monitor
 

just got an ikegami TM14-17R color monitor about 7 months ago.
out of the blue last week, from one power up to the next, I lost all chroma. no tube burn out, ive seen that, plus all 3 tubes at the same time? no way.
change all the inputs around (have 3) and no change.
any tricks/troubleshooting ideas before i ship it back?

What input are you using? Missing R & B inputs on component would dp that. If S-video it could be chroma connection on connector - check for bent pin. Try composite in!

Yeah, I paniced a few days ago when the same thing happened. I was using component video and a little troubleshooting isolated the problem as a bad cable. Actually it's pretty ironic - I've always avoided the "monster cables" but this was one time when I thought I should get them, and probably the only time I've seen a cable suddenly fail for no apparent reason...

UPDATE!
finally got around to taking yall's advice.

BTW 2 componet and one Svideo in.

well, the damn thing just lost the picture.
after giving me a horizontal and vertical sync bar with the black burst generator on.

oh, its going back alright.
kinda bummed, usually have had real nice quality with my ike products.

You don't have the blue gun turn on do you?