E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - Recent Posts

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+  E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP
|-+  Recent Posts
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 31 
 on: July 28, 2017, 08:01:57 AM 
Started by Paula - Last post by Paula
Alka,

 thanks, but these don't seem to be copies of the EPROM image inside the EII Sad

Paula

 32 
 on: July 28, 2017, 06:55:53 AM 
Started by Paula - Last post by alka
Yup.. all EII OS's can be found here: http://users.skynet.be/emxp/Additional_downloads.htm

 33 
 on: July 28, 2017, 05:54:26 AM 
Started by Paula - Last post by Paula
Done some digging, I suspect my EII+ HD is trying to boot from the HDD which is defunct.
So I need to find an EPROM image for a non HD EII+, I notice the latest version seems to be 3.1, does anyone have the file they can share with me? (I have a friend with an EPROM burner).

Many thanks
Paula

 34 
 on: July 28, 2017, 05:17:06 AM 
Started by Paula - Last post by Paula
Hi,

 So I've got it powering up.
But it won't boot Sad

 On the EII LCD I see ;

*** EMULATOR 2***
Boot in Progress

 On the  HxC emulator, I've put a bunch of things on the SD Card and selected this -
"emuii_os_3_1HD.hfe"
the HxC display shows the name and -

"RA T:000/080 S:1"  which I assume is the current track number (0 of 80) and side (side 1)
Both LEDs are permanently lit, no "clicks" from the HxC

so, I'm wondering, is the EII trying to boot from HDD? if so can I stop it (the HDD is frozen solid).

Do I need load an OS from disk? I was kind of under the impression I did, but maybe I don't?

Any advice very gratefully received (I've never used ans EII before).

Paula

 35 
 on: July 27, 2017, 03:13:55 PM 
Started by tiz9001 - Last post by tiz9001
FINALLY got around to doing this.  Wow what a pain in the arse.  The auto-trim did well enough for me the first time around so I didn't go much farther than that.  Not having a test signal generator, it took me a while to get a signal measured out to 2.82v p-p but I did it!

 36 
 on: July 27, 2017, 02:51:25 AM 
Started by edude - Last post by obsoletemachines
hi,
i don't think there is damage to the trace from the photos you sent...the traces run quite deep in this pcb and are not just 'stencilled' on to the PCB.

I think you need to go back to basics and test the power rails first.. what are you getting there.

If the power is ok then something is probably shorting the RAM circuitry - did you drop anything into the board?  Re-seat the ram chips... they may be slightly dislodged. But first as i say check the rails.


 37 
 on: July 24, 2017, 07:07:28 PM 
Started by who - Last post by who
Hi Alka,

Thanks for all your help!  I have two front panels, one works fine, the other has issues.  I was told the new front panel works except for one slider.  I broke one of the major troubleshooting rules and changed more than one thing at a time before I installed it.  I changed out all four sliders, put in a new OLED and replaced the large ribbon cable.  (I've done a fair amount of work to my EII and got a little too confident.)  Long story short, I think all of my issues are either due to problems with the front panel, or due to problems I introduced by changing parts on the front panel.

I swapped the old ribbon cable back in (easy) and the problems still occurred.  My next step is to pull the boards off the front panel and look for issues.  I don't know how often LEDs go bad, but my guess is it is much more likely there is a problem with the button.

 38 
 on: July 24, 2017, 06:23:16 PM 
Started by who - Last post by alka
Judging from your last issue with the new display you may be experiencing scanner issues... try carefully swapping the main z80 CPU chip with the scanner z80 CPU chip and see if any of the behavior changes..


 39 
 on: July 24, 2017, 05:39:18 PM 
Started by who - Last post by who
When I run the scanner disk all of the front panel LEDs illuminate except the enter LED.  I disassembled the button and cleaned the contacts, but no luck.  Do you think the button is broken or the LED?  Maybe something else?

If it is the LED, how do I go about finding a replacement?  Any tips for finding replacement parts?

 40 
 on: July 23, 2017, 05:43:50 PM 
Started by alka - Last post by alka
Thanks got that one... I know there is a more comprehensive shared folder somewhere.

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E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - Recent Posts

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