Archive of the former Yahoo!Groups mailing list: Vintage Simmons Drums (UK) Users Group

previous by date index next by date
previous in topic topic list next in topic

Subject: Betr: Re: [Simmons Drums] SDSV Issues

From: "Berk Aarts" <B.E.R.K@...>
Date: 2008-09-23

jim
I don't know how much you know about electronics, please be careful not to
hurt yourself or your equipment.
If you have the scematics, can you scan the part with the powersupply. That
would make things a bit easier for the ones who try to help you. Or is it
somewhere online??

greets Berk


>-- Oorspronkelijk bericht --
>To: Simmons_Drums@yahoogroups.com
>From: "jimstew37" <jimstew37@...>
>Date: Tue, 23 Sep 2008 01:29:05 -0000
>Subject: Re: [Simmons Drums] SDSV Issues
>Reply-To: Simmons_Drums@yahoogroups.com
>
>
>Hello:
>
>I did buy this from someone in the States, and I do have the
>schematics for the SDS-V.
>
>After performing the test described below, I'm reading about 12 volts
>at the secondary. This is a bit low, since the schematic indicates 15
>volts. But, since I've never messed around with one of these units, I
>don't know what range I should expect, not to mention the fact that
>this equipment is old. Don't know if transformers lose some of their
>capacity over time.
>
>I'm not sure I want to plug this into a converter until I know for
>sure what I'm dealing with.
>
>I will add that it doesn't look like this transformer is a
>replacement, although, as someone suggested in this thread, it may
>just be a matter of using a different tap off the trans. If that's the
>case, I should think that the fuse would have been replaced. I'm only
>basing that on my SDS-7, which was presumably made for US export, and
>has a 2 amp fuse, rather than 500 mA, like the SDS-V has.
>
>Anyway, thanks for your kind suggestions, and I welcome any further
>insight!
>
>Cheers,
>
>Jim Stewart
>
>
>--- In Simmons_Drums@yahoogroups.com, "WT" <waveterm@...> wrote:
>>
>> Jim, did you buy it in Europe or did you buy it from someone in the
>states ?
>>
>> Before getting a converter I strongly suggest that you verify the
>output
>> from the mains transformer.
>>
>> This is very dangerous so if you are not 100% sure how to do it,
>don?t !!!
>>
>> I accept no responsibility for any problems caused by your part.
>>
>> ∗ Switch off and disconnect the SDS-V from the poweroutlet
>> ∗ Open the SDS-V and locate the transformer
>> ∗ Disconnect the secondary winding leads going from the transformer
>to the
>> mixer PCB. Make sure they don?t short out each other
>> or touch any metal
>> ∗ Re-Connect the power source ( 120V ) and switch on the SDS-V
>> ∗ Measure the AC voltage between the two leads
>>
>> Tell us what value you are getting.
>>
>> It could be that your SDS-V has a transformer made for 220/240V
>installed.
>> Hence the low readings from the 15VDC lines.
>>
>> Or it could be that one voicecard is pulling the 15VDC down to
>roughly 5VDC.
>> This can be checked by removing all voicecards from the frame.
>>
>> WT
>>
>> ----- Original Message -----
>> From: "Berk Aarts" <B.E.R.K@...>
>> To: <Simmons_Drums@yahoogroups.com>
>> Sent: Saturday, September 20, 2008 10:42 AM
>> Subject: Betr: Re: [Simmons Drums] SDSV Issues
>>
>>
>> > See if I get this correct: You are in the USA where 110 V is the
>mains
>> > standard?
>> > You have a English piece off gear where the mains is 220 V? Am I
>correct??
>> > If oyu don't put a powerturner in between, that is not gonna work
>(imo)
>> > Do you have the scematics, so you are sure you're measuring 5
>where it
>> > should
>> > be 15Volt?
>> > Berk
>
>