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HELP My whole system all powers up but NO SOUND

Good morning everyone!!
Last night when i came home,my first thing in my mind is to listen to my system.So,i power up everything and when it's all warmed up ,i start playing my cd and heard nothing.I checked all the fuse and looks all good and no sign of burned fuse?BTW,my system is set up for "BIAMPING ".Tube monoblock driving the upper panel of my speaker (Martin Logan/Aerius) and a solid state amp to power the bottom side ( woofer ).As i said it's all power up but not getting any sound at all in my ML.I did connected another speaker and no sound still.What the heck is happening in my system? Btw,i did even checked the preamp fuse and it looks good and ofcourse i can see it powers up or light's on. I am thinking to open it up last night to check my 12ax7 tubes. is it possible it will be my preamp tubes??
Or the problem will be in the pre-amp??REmember both tube amps and solid state amps power are all ON and lights ON but still not getting any sound.I am at work right now and thinking a lot what really happened? I need all of your input and information so when i reach home hopefully i will enjoy my Friday night.Thank you all very much in advance!
pescolar
gregm
3,405 posts
 
You have of course checked that the amps are connected to the pre's output...

You haven't pressed or switched to tape /monitor/something? The source on the pre is at correct setting?

Try connecting yr source to different input on the pre.

Do all of this with volume down or minimal.

Otherwise, very strange. Could be tubes -- both ALL the tube failing together is too much of a coincidence
jdombrow
371 posts
 
Swap out each item in the signal chain with a known working component, one at a time, starting with the CD player and working back towards the amps.
swampwalker's avatar
swampwalker
5,138 posts
 
My guess is tape monitor switched in.
pescolar OP
128 posts
 
Yes i did checked all the connections from pre out puts and checked all the switched to tape,aux.1,aux.2 to all.If all tubes from the amp failed how about my S/S amp driving the lower part of my speaker,that should get a sound right?And also i did checked and try to play my dvd and still no sound.I even checked all the remote control just in case?
BTW,i have to add this more info of mine,almost a week ago i added and connected a y connector to the preamp (1 male to 2 female so i can used a sub which is sharing a signal for my S/S amp for the bass.I'ts so strange.I have 2 outputs in my Cary Audio SPL-88 preamps.I suspected it may be the preamp? I will call Cary Audio in N.Carolina and check about the pre-amp ? Thanks.
Jdombrow,i will try your suggestion tonight.Gosh i can't wait to go home.
pescolar OP
128 posts
 
About my pre amp it take 2 6sn7 tubes not 12ax7.I apologized.
Swampwalker,i did checked all the source on off position except the cd but will double checked again tonight.
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