E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - E-mu 3 Trouble, Frozen

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Author Topic: E-mu 3 Trouble, Frozen  (Read 2615 times)
Smitkis
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« on: February 07, 2023, 11:23:10 AM »
Hoping this is an active group. I just picked up an Emulator III and it is frozen on power up. Screen is just blocks, A few lights are on but no changes with any button presses. The hard drive comes on after maybe a minute or two (strange), and the disk drive down not seem to want to power up. I'm also a little concerned why the previous owner has the "A,B,C,D" cables jumbled. Seems like intuitively they should go in order. Has anyone been through a blocked out screen issue? I'll attach a few pictures as well.

* thumbnail_IMG_0317.jpg (81.44 KB, 640x480 - viewed 353 times.)
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Smitkis
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« Reply #1 on: February 07, 2023, 11:27:37 AM »
Maybe someone can spot an issue..

* thumbnail_IMG_0320.jpg (95.55 KB, 481x640 - viewed 373 times.)

* thumbnail_IMG_0321.jpg (96.47 KB, 481x640 - viewed 358 times.)

* thumbnail_IMG_0318.jpg (77.1 KB, 640x481 - viewed 352 times.)
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Deft
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« Reply #2 on: February 08, 2023, 01:13:22 AM »
check the voltage on PSU rail first.
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Smitkis
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« Reply #3 on: February 08, 2023, 07:32:30 PM »
Power supply looks good.
Red: +15.3
Black: -15.4
Yellow: 5
Orange: 12.2
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Deft
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« Reply #4 on: February 09, 2023, 05:50:27 AM »
yes, PSU looks ok.

second - check and clean all the cable connections, disconnect all cables, clean contacts and the put them back.

third - carefully pull out memory and cpu boards, inspect them for "burns" microcracks etc, clean contacts and pull them back.
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Deft
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« Reply #5 on: February 09, 2023, 05:59:50 AM »
Quote from: Smitkis on February 07, 2023, 11:27:37 AM
Maybe someone can spot an issue..

also, just noticed - voice outputs wiring is incorrect, see the correct picture:
this won`t affect the boot sequence, but please also send a picture of boards wirinng

* photo_2023-02-09_15-59-09.jpg (274.98 KB, 1280x960 - viewed 327 times.)
« Last Edit: February 09, 2023, 06:03:52 AM by Deft » Logged
Smitkis
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« Reply #6 on: February 09, 2023, 10:22:50 AM »
Yes, I noticed that too. The engineer in me was wanting to swap those to "ABCD", but didn't get to it yet since it I figured they had no issue with boot up. I'll get some pictures of where they tie in to the main boards.
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Deft
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« Reply #7 on: February 10, 2023, 01:22:12 AM »
My intuition tells me - try to check this cable connection first:

* eIII.JPG (328.01 KB, 1894x1128 - viewed 369 times.)
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Smitkis
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« Reply #8 on: February 10, 2023, 10:06:27 AM »
I didn't get to it last night, but I may slide that board and and clean up both cable ends as well.
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E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - E-mu 3 Trouble, Frozen

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