emulatorII-list

Not sure if this is relevant to your problem, but I always start with the power supply.  Since its modular I just take it out send it to a shop have it rebuilt. A faulty PS will cause so many problems. I would not attempt trying to repair a PS yourself unless your qualified to do so.

adrien <ad9@free.fr> wrote:

>Hi ! 
>i've just opened my emulator II, reading what you said about the ssm2045 chips. .... What if on the main output, the sound becomes wierd, after 10 minutes of perfect use ? i plugged the jack into each voice output, and the keys were the sound came from ( aleatoire ) produced the same wierd sound as on the main output. but only after about ten minutes of use, i can't understand what's going on ....
>what else could that be ? should i replace each chip of each board ???
>thanks a lot everyone if you have any clue, and some time to read this sos message.
>
>best,
>Adrien
>
>
>> 
>> 
>> --- In emulatorII-list@yahoogroups.com, sm papke <mothrecords@> wrote:
>> >
>> > Hi George, voice chips for the E2 are SSM2045 type and are located
>> on the output board of the E2, and are the only chips I know of that
>> are compatible with the Emulator2. I am unaware of any correct
>> replacement for them? There is a Seil model synth that can be parted
>> for the SSM2045 chips as well. The easiest way to check for the bad
>> the voice/s is to use the individual outs (labeled 1-8) on the back of
>> the unit (do not use the main output). Go through the 8 outs one at a
>> time to see on which output there is no sound, or maybe some fuzzz..or
>> even a high-pitched ringing instead of the sample. This is the easiest
>> way to check possible bad voices, and without any tools needed. If you
>> do get a bad sound from one or more of those 8 individual outputs,
>> then I would say you most likely have some bad voice chips. The next
>> step would be to open it up (via the 8 or so screws around the
>> bottom-edge of the unit) ..lift the top up, and you will see the
>> output board
>> >  to your left (be careful not to overstretch the connection lead
>> from the lcd/number-pad section to the digital board!). You will also
>> need to remove the power supply (via 4 screws on the outside back) to
>> get to the SSM2045 chips, unless yours is the "European model" with
>> the power supply on the right-hand side? much easier ;) Anyway, you
>> will see 8x SSM2045 chips located at the top of the output board
>> either way. From Right to Left they are 1-8 so if the output on #3 and
>> #5 have bad sound coming out of them, then you know that the 3rd and
>> 5th SSM2045 chip may be faulty. Now try swapping the bad chips on #3
>> and #5 with any of the good channels #1 #2 #4 #6 #7 or #8. If the
>> chips on 3 and 5 are truly bad, the bad sound will follow them
>> anywhere you swap them. Hope this helps!
>> > Cheers
>> > 
>> > --- On Tue, 10/28/08, George <trickstar303@> wrote:
>> > From: George <trickstar303@>
>> > Subject: [emulatorII-list] New EII Owner needs help.
>> > To: emulatorII-list@yahoogroups.com
>> > Date: Tuesday, October 28, 2008, 1:08 PM
>> > 
>> > 
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>> >     
>> >             Thanks everyone for your replies and tips.  
>> > 
>> > 
>> > 
>> > I guess I will try to clean/reseat the ICs first and see what 
>> > 
>> > happens. 
>> > 
>> > 
>> > 
>> > In case it won't take care of the voice problem...I read somewhere in 
>> > 
>> > the forum that the S3528 is the one to replace if a voice cuts out. 
>> > 
>> > Then somebody told me it's the SSM2045? Are these chips located on the 
>> > 
>> > analog board? And how can I isolate the problem so I know which one  is 
>> > 
>> > bad? 
>> > 
>> > 
>> > 
>> > I found these chips on www.Vintageplanet. nl  The S3528 chip was
>> labeled 
>> > 
>> > s3528B. Does anyone know the difference and if the S3528B will work 
>> > 
>> > also?  
>> > 
>> > 
>> > 
>> > George
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>> > [Non-text portions of this message have been removed]
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