10-23-2008 05:18 PM
10-23-2008 05:18 PM
10-23-2008 05:25 PM
10-23-2008 05:56 PM
I seriously didn't know there was a battery in the A6. I quite like the RAM card.
10-23-2008 06:38 PM
10-23-2008 06:43 PM
10-23-2008 07:41 PM
I kind of expected the insides of the A6 to look a bit more 'cluttered' considering what this monster machine is capable of. I saw the pic of all the boards and was like, "that's the Andromeda, huh?" But it does make sense that it looks that way since it's a modern design using ASICs and such.
10-23-2008 11:48 PM
This is a classical Oberheim PCB layout. Personally my favorite ever. So simple to maintain and service, totally opposite to some Japanese synths i serviced. When you open a Jupiter 8, first thing to do is to take a 2 hour break to clean up your mind, then you can proceed.
10-24-2008 05:35 AM
Actually, the battery should last much longer than that. The factory battery is slightly larger than a CR2032, and static RAM takes very little power to maintain. The Samsung SRAM chip in the A6 can retain data down to 2 volts or so, so the battery can be drained down to 2.2 volts and you'll still be ok (fresh lithiums are around 3.2-3.3 volts). Synth batteries should last longer than PC motherboard batteries, since PC motherboards have a real-time clock on them the battery maintains. As is evidenced by Juno and DX synths that have 20+ year old batteries that are still good. I just replaced my battery because I thought it was the cause of my memory problems. Turns out it was the diode. In fact, with the diode installed backwards, the battery was getting "charged" when the synth was on. Precisely what the diode is there to prevent. It's a good thing the battery didn't leak or something. What's interesting about the RAM card I got with mine, is there's no "battery compartment" in it. When its battery goes dead, I guess you just have to toss the card. I wonder if the card's battery gets charged when it's plugged in with the synth on.
Batteries seem to have a four year life in Andromedas. Back up those patches!
10-24-2008 07:00 AM
10-24-2008 07:20 AM
I just replaced my battery because I thought it was the cause of my memory problems. Turns out it was the diode. In fact, with the diode installed backwards, the battery was getting "charged" when the synth was on. Precisely what the diode is there to prevent. It's a good thing the battery didn't leak or something.
10-24-2008 07:27 AM
10-24-2008 07:32 AM
As for the diode, it took some tracing with a voltmeter to figure out what was going on (if i had schematics, it would have been a piece of cake).
10-24-2008 07:34 AM
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