Martin Logan Summit Woofer No Sound, no detect signal input

[Jimthuy]

Hi, I have a pair of Martin Logan Summit, didn’t use it last few months. Just turn them on few days ago and both of them have No Woofer sound, both ESL still work ok. Tried to test with other room amp same thing. Just test again without jumper. Input on ELS work ok with green light and sound. Input only Woofer input the LED stay at Yellow not turn to Green. ( may cause by power outage within last few months )
Any suggestion?
Thank you all

 

[Robert D]

Do those have fuses?

 

[Jimthuy]

Do those have fuses?

Summit have No Fuse. Except on ICE board have at F1 on both. Check both ok. I think one ICE for front woofer and one is lower. No sense no sound on either one.

 

[Jimthuy]

Summit have No Fuse. Except on ICE board have at F1 on both. Check both ok. I think one ICE for front woofer and one is lower. No sense no sound on either one.

Swap either is same. Tried just Woofer LED Yellow and no sound at all. Try on ESL input have sound from ESL and LED Green.

 

[Robert D]

Have you tried contacting Martin Logan's service? I think the guy's name is Ron there. He answers emails very quickly. I would send him these pictures and describe to him what is happening. I bet he may be able to help you.

 

[Robert D]

So it sounds like the amps in the speakers dont sense the music input and arent turning on? Have you tried wiring up the woofers directly to an amp and see if they work then? Bypass the internal amp that way and use an external. Youd need an external crossover too. Just an idea. We have some very knowledgeable guys on here that might have ideas too. Some run active crossovers with their speakers and say that the sound quality is much higher doing that. I have no experience with that.

 

[Jimthuy]

Have you tried contacting Martin Logan's service? I think the guy's name is Ron there. He answers emails very quickly. I would send him these pictures and describe to him what is happening. I bet he may be able to help you.

I tried to call Martin Logan service today, but just have to wait… then tell me leave a call back. I leave a call back with my phone number, name and detail but No call back yet. Hopefully tomorrow.

 

[Jimthuy]

So it sounds like the amps in the speakers dont sense the music input and arent turning on? Have you tried wiring up the woofers directly to an amp and see if they work then? Bypass the internal amp that way and use an external. Youd need an external crossover too. Just an idea. We have some very knowledgeable guys on here that might have ideas too. Some run active crossovers with their speakers and say that the sound quality is much higher doing that. I have no experience with that.

I’m running 2 McIntosh monoblock 600W. One for each speaker. I know my amp are ok to run that with optional crossover. But trying the way to fix it first. It’s expensive speaker.