Emax

Hi,
So i changed the IC16, it didn't change a thing regarding the RS422
transfert.
I still get the error message.
If i try to send something to the emax i get a bad ACK, bad packet message.
If try to retrieve a bank I get the message in the PNG attached from EMXP,
and the emax keeps trying to send the back.
Otherwise on the distortion problem, it is gone.
i reseated all the DACs and it's irking fine.
The weird thing is that i always had a voice that was saturating, so i
bought 4 spare DACs.
i tried to change the "defective" chip, but then i got some crazy bug,
sound was distorted with some kind of a ground loop in the back.
I put the original one in place, and now it's all working.
I guess the emxp/rs422 is not an option for me
:(


http://www.krikor.fr
+33632199413

For Live&Dj bookings contact: cedric@referenceprods.fr


2014-04-28 23:07 GMT+02:00 Ted Summers <djtbs1@...>:

>
>
> I dunno- but you could certainly check for AC on the DC lines, just set
> your multimeter to AC and check between +5 and GND and then also check +12V
> and GND.
> You shouldn't have AC there.
>
> -T
>
>
> On Mon, Apr 28, 2014 at 2:01 PM, Krikor <krikorola@...> wrote:
>
>>
>>
>> Could it come from the PSU going down? I had the PSU fixed last year,
>> maybe something was done wrong
>>
>>
>> http://www.krikor.fr
>> +33632199413
>>
>> Booking dj & live: cedric@...
>>
>> Le 28 avr. 2014 à 22:37, Ted Summers <djtbs1@...> a écrit :
>>
>>
>>
>> That description of connecting the pins directly from one chip to the
>> other chip makes me think it is the cable used.
>> Perhaps the cable is too long, or doesn't have proper shielding, or not
>> enough twist in wire so that signal loss or interference occurs in the
>> length of the cable.... just a couple thoughts electrically.
>>
>> The only other thing I can think of would be a difference in ground
>> potential between the two connected devices. The voltage difference can
>> mess with the signal too... I know on RS-422 devices I used to install for
>> Point of Sale, that in rare installations we had to use line conditioners
>> with "ground guard" that negated difference potential across the grounds.
>> Once we did that the RS-422 worked perfectly. But those were expensive....
>> although there is testing that can be done to see if there is a voltage on
>> the ground that shouldn't be there... usually this is AC voltage present.
>>
>> On that note, AC that has a bad EMI / RF filter from some device in the
>> studio could also put that AC onto the ground and the other devices could
>> pick it up....  I have seen that in practice at a site also.
>>
>> -Ted
>>
>>
>> On Mon, Apr 28, 2014 at 1:24 PM, Krikor <krikorola@...> wrote:
>>
>>>
>>>
>>> Hi Ted,
>>> I did today, it didn't work. I still get wrong answer from the emax
>>> (0.0.0.0 instead of the right sysex message)
>>> I need to try this fix:
>>> http://eiiiforum.com/index.php?topic=2274.15
>>> I will do that when I have some time after the 15 may.
>>> I found a another emax in Paris, if it works I will buy it.
>>> Mine is 1020 serial 335, the one I found is 1020 serial 330.
>>> So it should be compatible with HD mod too.
>>> Best
>>> K
>>>
>>> http://www.krikor.fr
>>> +33632199413
>>>
>>> Booking dj & live: cedric@referenceprods.fr
>>>
>>> Le 28 avr. 2014 à 20:29, Ted Summers <djtbs1@...> a écrit :
>>>
>>>
>>>
>>> Krikor-
>>>
>>> Did you ever try that other PLUS OS version Dave supplied to see if the
>>> transfer with EmuSer worked for you?
>>>
>>>
>>> Thx,
>>> Ted
>>>
>>>
>>> On Mon, Apr 28, 2014 at 11:03 AM, Krikor <krikorola@...> wrote:
>>>
>>>>
>>>>
>>>> Thanks
>>>> I'll check the PSU tomorrow.
>>>> Best
>>>> K
>>>>
>>>>
>>>> http://www.krikor.fr
>>>> +33632199413
>>>>
>>>> Booking dj & live: cedric@referenceprods.fr
>>>>
>>>> Le 28 avr. 2014 à 19:38, Robert Van Kuran <guitar5l50@yahoo.com> a
>>>> écrit :
>>>>
>>>>
>>>>
>>>> Follow that 5v rail
>>>>
>>>> -RVK
>>>>
>>>> On Apr 28, 2014, at 12:37 PM, "jammie" <jammie.emma@blueyonder.co.uk>
>>>> wrote:
>>>>
>>>>
>>>>
>>>> test psu for ripple
>>>>
>>>> ----- Original Message -----
>>>> *From:* Krikor <krikorola@...>
>>>> *To:* emax@yahoogroups.com
>>>> *Sent:* Monday, April 28, 2014 6:22 PM
>>>> *Subject:* [emax] Main output distorting
>>>>
>>>>
>>>>
>>>> Hi
>>>> I haven't used my emax for a few month.
>>>> Today when I plugged it in the main out sounds like 8bit going thru a
>>>> fuzz.
>>>> All 8 voices acting the same.
>>>> Anybody has an idea what can cause that?
>>>> Best
>>>> K
>>>>
>>>>
>>>> http://www.krikor.fr
>>>> +33632199413
>>>>
>>>> Booking dj & live: cedric@...
>>>>
>>>>
>>>
>>
>  
>


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