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Old 2nd December 2012, 12:39 AM   #41
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I might be able to call you, but I did NOT design the final ML-2, even though I designed the prototypes. I don't have any more details than anyone else.
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Old 17th April 2013, 01:27 PM   #42
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Default ML2 audio card adjustments

Does anyone know where are the measuring test points and adjustment value targets on the 4 trim pots (see below) on the audio card of the Mark Levinson ML 2 amp.

1. IM Balance
2. Invert Balance
3. Card Current
4. DCO - this one is easy to get minimize DC offset on the speaker terminals.

Look forward to getting valuable comments from anyone on this threat
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Old 17th April 2013, 01:37 PM   #43
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Does anyone know where are the test points and target values for adjusting the trim pots on the Audio Card of the Mark Levinson ML 2 amp. On the schematic of the Audio Card these trim pots are

1. IM Balance
2. Invert Balance
3. Card Current

The 4th is DCO which is easy to adjust to minimize DC offset at the binding post.

Appreciate any valuable comments from anyone.
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Old 3rd March 2014, 10:25 PM   #44
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Default mark levinson ml2 on/off switch.

can anyone help please.ive recently purchased a pair of ml2 monoblocks,described as both working,after connecting them up,only one works.other amplifier tries to power up-then cuts out.it seem like its the on/off switch,as you can hear a quick burst of output from speaker and transformer kick in.anyone know where I might get a new on/off switch and if or this could be the problem.
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Old 3rd March 2014, 10:29 PM   #45
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Default ml2 amplifier

can the on/off switch be bypassed so I can at least use it until I can obtain a new switch.
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Old 3rd March 2014, 10:29 PM   #46
Bigred is offline Bigred  Canada
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I can't imagine it would be too difficult to jump the switch and find out
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Old 3rd March 2014, 10:37 PM   #47
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just a bit concerned as its a multi function switch,not exactly sure exactly what its switching and if I might cause any damage.
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Old 3rd March 2014, 10:44 PM   #48
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Location: florida
The switch is probably a circuit breaker if it's like some of the other ml amps
You'll probably find a cold solder joint somewhere, this happened to me on a no27
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Old 3rd March 2014, 10:52 PM   #49
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I believe it is a circuit breaker,can it be bypassed to power the amp up.
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Old 3rd March 2014, 11:08 PM   #50
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You could bypass but I would use a variac and monitor the current
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