Re: [AH] Synthex sequencer fault

From Brian Willoughby
Sent Sat, May 25th 2019, 17:27

Before you change any chips, could it be a battery?
I=E2=80=99ve never looked inside a Synthex, so I don=E2=80=99t know =
what=E2=80=99s involved.

Brian


On May 25, 2019, at 10:14 AM, Bob Grieb via analogue =
<xxxxxxxx@xxxxxxxxx.xxx> wrote:
> Sequencer data is stored in battery backed RAM, starting at address =
0400h,
> which is the start of the RAM2 chip select, so chips 2L and 2M.
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> I suggest changing out those SRAMs to see if that fixes the problem.
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> You may want to buy enough chips in case the patch ones fail later on,
> as they are the same type.
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> Sorry I am not able to respond in the same thread.   Using a browser =
to read
> the messages.
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> Bob Grieb
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> On May 25, 2019, at 9:49 AM, Neil Dunn <xxxx.x.xxxx@xxxxx.xxx> wrote:
>> Hi folks
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>> I'm hoping someone can offer some advice and help me repair my =
Synthex sequencer which has a few issues.
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>> The sequencer is acting very odd, it stores random note data on all =
for channels with some being very long indeed.
>> Once deleted (which can sometimes take two or three efforts) i can =
record sequences but once i power down and back on again my programmed =
sequences are gone and the random note data has returned.
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>> For the record i've had this unit approx six years and it's always =
been like this, it's MK2 with JB Emonds midi kit installed
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>> Any advice is welcomed
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