E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP - Emulator II+ / suddenly not playing anymore

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+  E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP
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| |-+  EII Technical Issues / Tips
| | |-+  Emulator II+ / suddenly not playing anymore
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Author Topic: Emulator II+ / suddenly not playing anymore  (Read 1195 times)
dr.c
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« Reply #15 on: December 14, 2016, 03:02:04 PM »

Don't mess around by changing circuits around like a moron ! You need an osilloscope !
The 4051's have each 8 channels, one of the is foe the VCA's (x8), another for the filter frequencies, the last, for the "Q".
Even if they are the same, you cannot exchange the "just like that", because you will decalibrate the machine !

Where are you located ?

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operasix
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« Reply #16 on: December 15, 2016, 02:24:16 AM »

Hey there,

Here are the voltages of my power supply:

Pin 1 Red 14,5 Volt
Pin 2 Yellow 5 Volt
Pin 3 Yellow 5 Volt
Pin 4 Green 0 Volt
Pin 5 Green 0 Volt
Pin 6 Blue 0 Volt
Pin 7 Orange 11,7 Volt
Pin 8 Black -14,6 Volt

all the best
steve
« Last Edit: December 15, 2016, 02:51:34 AM by operasix » Logged
dr.c
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« Reply #17 on: December 18, 2016, 01:32:46 AM »

Where are you ?
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operasix
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« Reply #18 on: December 22, 2016, 03:38:15 AM »

Dr. C !!!!
You are absolutely my man !
The Emulator is working again - it was that fucking IC63 ! Bought a new one and replaced it and now everything is working again...
I m so happy - thank you so much man !

 all the best
steve
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dr.c
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« Reply #19 on: December 22, 2016, 03:20:42 PM »

Happy you are happy, but I'm not sure you are out of your problems.

W'ell see.

Cheers
Dr.C
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dr.c
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« Reply #20 on: December 23, 2016, 03:54:54 AM »

Your message was indeed a bad joke !   Grin

Where are you located ? You are going to have other problems, probably.

If you toggle several times the front panel button from to "Sample" and non "Sample", do you hear a "thump" in the audio output every time you change this status ?
If yes, this means you have an offset voltage problem, wich is solved by adjusting it thru the variable resistor near the converter. IT HAS TO BE DONE !
If its okay, don't touch it !, as we say, "if it works, don't fix it", keep your damn hands off this machine (the inside, I mean).
If it does it, DON'T DO ANYTHING EITHER, just send me a picture, macro if possible, beautifull and clear, of the surroundings of this converter and pot (a square of five inches picture would be okay).
If you do anything without my permission or instructions and kill the machine, don't come at me, just die, I won't move, even a finger for you !

Cheers
Dr.C

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operasix
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« Reply #21 on: January 02, 2017, 05:06:50 AM »

what is that converter you are talking about ? where is it located ?

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dr.c
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« Reply #22 on: January 02, 2017, 03:16:09 PM »

Its the damn AD7524 !!!!
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Sp 12 turbo / Emu II /


« Reply #23 on: January 21, 2017, 12:40:19 AM »

very interested post with the three 4051 explanation  Shocked


I have the some problem. No output sounds from everywhere. Since i have change to a new a PSU.


I will change soon the AD

Thank you
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Sp 12 turbo / Emu II / Mac se30 / dx7/ mininova / Prophet 600/ you kou lay lay
dr.c
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« Reply #24 on: January 21, 2017, 01:42:46 AM »

Damn, you are a new guy in the loop ?
I tought at first it was the same machine !

Stop changing thins like that ! Is your PSU an original one ? With the same voltages
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« Reply #25 on: January 21, 2017, 02:12:02 AM »

Yes, it was an original , from europe.

No it's not the same oldish PSU,

Mine doesn't have the orange 11,7V.  the serial is N1086 EII.

a photo before i had changed the psu to a mean well witch i've set the good 5V output



*  (59.72 KB, 334x587 - viewed 31 times.)
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Sp 12 turbo / Emu II / Mac se30 / dx7/ mininova / Prophet 600/ you kou lay lay
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Sp 12 turbo / Emu II /


« Reply #26 on: January 24, 2017, 12:46:29 AM »

Again,

That's ok now! I've checked th voltage on filters IC and AD ic ; There e are all right!

I've never check an IC before with multimeter Dr.c ... Thank you for the knowledge.

After some IC checked i've found that VR2 on analog board doesn't brought 15v as specify on schematics.

It was bad shrink on 15V meanwell. Now it is fine!

Greats
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Sp 12 turbo / Emu II / Mac se30 / dx7/ mininova / Prophet 600/ you kou lay lay
dr.c
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« Reply #27 on: January 24, 2017, 10:53:34 AM »

Fells good...   Grin
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Elmbeatz
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« Reply #28 on: January 24, 2017, 04:08:08 PM »

Tip top! Smiley
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