Title: update !!! emu 2 fixed ( emu emulator 2 help not booting up ) Post by: bunman on March 29, 2011, 10:14:24 PM Hi can anyone give me any technical info as my e 2 is not booting up any more . It was working fine booting up playing a output then i sampled something and then the input s and outputs started playing up . So i opened it up tryed to see if any loose connections put back together now it wont boot. So first it was a input output problem now its that and a booting up problem any help would be appreciated as tech guys in my area dont know about this vintage gear
jon Title: Re: emu emulator 2 help not booting up Post by: JMP on March 31, 2011, 02:33:02 PM Jon, think you need to help other people to help you by giving more detail....
Booting from hard drive or floppy disk? Any sounds from the floppy drive? Using the same disk, tried another one? Any messages in the display? Title: Re: emu emulator 2 help not booting up Post by: bunman on April 02, 2011, 02:17:08 AM Ok sorry about the vague description . In fine detail both disk drives are the original ones and were working perfectly i have the os on 5 1/4 disk both drives were booting the os with no problems wit this os disk i have . So i started out sampling my own sounds off lp vinyl into emulator 2 and playing them back . Ok then one day what happened is i went to sample some sounds and nothing was inputing into the line input and i was nt getting anything on the meter i would press sample and it would play back a heap of hiss and static. Its nothing to do with my system as i would sample into my sp 1200 and mpc 3000 the same sounds and that would work. Now all l did was open the emu up to see if any loose connections and i could nt see any . So i put the cover back on and tryed to boot up again too see what happens and none of the drives worked so i cant boot the os up anymore .Now i m suspicious it might be a wire or something else as i dont believe 2 drives that were working perfectly both dont work there not making a sound and the light on one of them lights up but the other one does nt its the strangest thing happened to me with gear . So all in all i started out with a input out put prob now its a disk prob and output and input prob . So JMP if you got any ideas what ya might think or its happened to you or someone ya know let me know please
Title: Re: emu emulator 2 help not booting up Post by: bunman on April 02, 2011, 02:22:40 AM this e 2 has no hard drive only booted it from disk drive and the message it asks is insert disk even though i have inserted os and i know something wrong as bottom drive has no light anymore and makes no sound as it did before i m baffled
Title: Re: emu emulator 2 help not booting up Post by: JMP on April 02, 2011, 02:25:00 AM Does sound like you've dislodged a cable or something... A mistake I once made is connecting the two wires from the lid PCB's to the wrong connections at the rear of the EII output board. They sit side by side and look identical. If you removed these, make sure they're connected to the right places.
I trust you've already checked your floppy drive ribbon cable connections... both floppy drives could also be affected by a voltage pot adjustment on the PSU but I'm presuming you didn't touch that. Title: Re: emu emulator 2 help not booting up Post by: bunman on April 03, 2011, 03:21:27 AM (both floppy drives could also be affected by a voltage pot adjustment on the PSU but I'm presuming you didn't touch that. ) Dont know may be ? where is that pot situated the only thing i did do was check the internal fuse near the out puts and its not blown could i have bumped anything around there that would cause the problem all ribbon cables seem connected but i ll double check again
i ll get back to you after i rediagnose with your info and see what happens Title: Re: emu emulator 2 help not booting up Post by: JMP on April 03, 2011, 09:46:02 AM Don't touch the pots on the PSU unless you think you already have (intentionally or accidentally) as you'll likely make it worse.... If you haven't disconnected or changed anything when you first opened it up, taking to a tech may be the only way to go...
Title: Re: emu emulator 2 help not booting up Post by: bunman on April 03, 2011, 04:01:31 PM yes i know thats what i wanted to do
but problem is i dont know if anyone got knowledge of these old samplers in Melbourne Australia that i can trust with it in case they damage it more i know it was working fine so it cant be that bad i hope also what do you think about the inputs and outputs problem is that a hard fix or something simple to fix Title: Re: emu emulator 2 help not booting up Post by: bunman on April 03, 2011, 04:03:45 PM to anyone in Melbourne that reads this thread
if you know any techs that are good at fixing ol emulator s let me know Title: Re: emu emulator 2 help not booting up Post by: JMP on April 04, 2011, 09:12:30 AM to anyone in Melbourne that reads this thread if you know any techs that are good at fixing ol emulator s let me know Just look for any vintage synth/equipment repairer. Australia is a big place, must be one somewhere, just be prepared to ship or transport it yourself.... If the PSU hasn't been overhauled previously, it's probably overdue and 'may' be your issue. Just a bit wierd it's coincided with opening it up... Can't help you on the outputs I'm afraid, maybe someone else can offer you a suggestion... Title: Re: emu emulator 2 help not booting up Post by: Mender on April 05, 2011, 10:06:35 AM Hi,
Almost all Emulator II's suffer from an unreliable cable connection at the power supply. You may notice a discoloring at the plastic cable header at the yellow wires(+5v). The resulting oxidation at the points of contact inhibit the current necessary to boot from the floppy drives. E-mu used to have a multiwipe harness to replace the original harness. Since these are no longer around, the solution is to cut away the offending cable and pc board headers(at least both 5volt connections) and solder the wires directly to the power supply pc board. While the board is out, you can also resolder any other cracked connections, especially at the AC input connector. Title: Re: emu emulator 2 help not booting up Post by: bunman on April 07, 2011, 04:21:01 PM thanx for your tech support guys
hey mender i m gonna try it out it sounds like your on the money it must have to be that as both the drives were working flawlessly i opened it and then they were nt hey man any idea on input and output problem ? My problem arose when i started sampling something and the input went haywire and nothing was inputing and then the output did nt sound could it be psu causing that too or is it another problem that plagues these samplers ?? got a e 3 sp1200 sp 12 emu 4 platinum very reliable the e 2 driving me crazy is that usual or is it just my one Title: Re: emu emulator 2 help not booting up Post by: bunman on May 14, 2011, 05:21:58 AM to evryone that helped thanx :D
update for anyone that comes across this problem anytime soon it was the power supply suprisingly affecting inputs outputs and in the end also stopping it booting up it had dry solder joints the local synth repairer fixed this easily quite an easy fix after all that stressing evrything running nicely now ;D onto getting sd working with it now |