Question about Dynamo MartinLogan Subwoofer Speaker

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Martin Logan Dynamo subwoofer - power supply module fried. Need service manual to fix. It is not fuse, it is some internal short circuit. Factory Id: XMSH Serial: DYUA0343 Other numbers: 12345678AB Thanks in advance.

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Posted on Jan 02, 2017

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SOURCE: I own a used Martin

Did you get the sub fixed? I know someone with the same problem - won't turn on, fuse is fine. May be due to different underlying problem, but wondered if you discovered what it was and if you got it fixed.

Posted on Oct 29, 2010


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Chevy code P1682?

P1682 Chevrolet - Ignition 1 Switch Circuit 2

Possible causes
- Faulty ignition switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
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What does this mean? What does this mean?
When is the code detected?
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Possible symptoms
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No sound from speakers has a fuse blown

If fuse has been blown means power capacity of the subwoofers exceeded the actual power transmitted.Subwoofers capacity cant hold on to the actual power transmitted.If you replace a new fuse check first if internal circuit was not damaged .When a fuse blown out its an indication that something wrong happened within the circuit.Check first subwoofer line if there was short circuit using a tester.Select OHMS mode and try to check both lines.If no movement it means you have it check to a service technician to fix.

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I have a 2003 Ford Explorer Sport Trac. My automatic headlights and auto dimming review mirror are not working. No fuses inside the cab of the truck are blown and dont know which ones under the hood...

The autolamp system, controlled by the vehicle security module, supplies voltage to the same circuits used by the headlamp switch to power the exterior lamps when low light conditions are detected.
Anyone else have or have fixed this problem some help please???? What fixed someone else's vehicle probably won't fix your's .Electronic's involved . Using service repair info. , wiring diagram's an testing the electrical circuits is how professional Technician's fix electrical system problems , not guessing or looking for magical fixes on web sites or forum's.
Visual Inspection Chart Mechanical Electrical
  • Headlamp switch
  • Battery junction box (BJB) fuses:
    • 1 (60A)
    • 16 (15A)
    • 22 (20A)
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Plus hooking up a factory scan tool an checking for DTC'S - diagnostic trouble code's .
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  • No communication with the vehicle security module
  • Circuitry.
  • Vehicle security module.
  • REFER to Section 418-00 .
  • The autolamps are inoperative
  • Circuitry.
  • Headlamp switch.
  • Photocell sensor.
  • Vehicle security module.
  • Go To Pinpoint Test G .

Electric Testing Techniques You Need to Know

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I own a used Martin Logan Dynamo (older series) and just today found out there is no sound coming out/no led light (at the back) either. I opened up the back and saw the 110V power is getting in but no...

Did you get the sub fixed? I know someone with the same problem - won't turn on, fuse is fine. May be due to different underlying problem, but wondered if you discovered what it was and if you got it fixed.

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Bought a used Martin Logan Dynamo subwoofer a couple days ago and have a very loud hum when the ac cord is plugged in, even if the speaker is not connected to an audio source. The "hum" can be heard in any...

Neither the amp or the sub have grounded power cords.

I have discovered the ML Dynamo takes about 30 minutes to switch to standby in auto mode.

With speaker level inputs connected to the Onkyo A807 amp, both units powered from the same wall outlet, Dynamo sub on Auto, the sub hums for about half an hour after the Onkyo is switched off, then the sub goes quiet. Not so good.

I connected a bonding wire between the two units on 3_7_09. If I smoked some old audio gear I could just look at that as an opportunity, right?

Works fine. Now I have the ML powered from the wall and working normally.

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