MixBuzz1 Build/Support thread

[baadc0de]

Igor,
Can you  please add the LED meter calibration?
Thanks,


P.S.  Maybe I am alone for building this project

I'll be sure to join in when the soundpath upgrade and a suitable case ship to me ... so carry on, we're all watching with interest

 

[jandoste]

Igor,
Can you  please add the LED meter calibration?
Thanks,


P.S.  Maybe I am alone for building this project

I'll be sure to join in when the soundpath upgrade and a suitable case ship to me ... so carry on, we're all watching with interest

Hey Guys,
ok, I hesitate about ;

A- I just finished all wires connections but it was not clear the mix pot,
- Can I use 10K log?
- what does mean min-w-max exactly ?

B- I got all Voltages and good news every voltage is correct ! PSU and main PCB too but,

- when I send a signal 1K | 0dB [1V etc ] I see nothing on Vu LED !
- Send 1K and move trshld pot and nothing change! same ratio/attack/Reales/Make up/sidechain

I don't think that the wires connection problem or pot ! but why not

C- on VCA's I didn't have 732R %1 1/4 W but I used 732R %0,5 0,125 W ?

Last, I would like to start first calibration if I can get any info for my questions
Cheers,

 

[Igor]

Hi guys, sorry for delay with reply.
Had a little vacations, rest and back here.
Umit: the LED calibration procedure will be added ASAP, just let me get to workshop and free hour
I assume, you assembling the full version, like mine.
This is not a standard option for attack/release, supplied with kits
(the kits are supplied with switch option, like an original compressor).
Instead of attack/release boards, it goes like here:
http://www.groupdiy.com/index.php?topic=40766.msg510118#msg510118
Please check as well attached photo....more-very soon....

 

[Igor]

A- I just finished all wires connections but it was not clear the mix pot,
- Can I use 10K log?
- what does mean min-w-max exactly ?

MIN-W-MAX: MINimum (CCW), Wiper, MAXimum (CW) of MIX pot.

I used dual 10k lin DUAL pot. In ideal, the best case is quad 2x log / 2x revlog 10k pot, but I cannot find them anywhere.
Dual 10k lin alternative works best for me.

Till now, all seemed ok.....blue sky's, no clouds...

Now, ERRATA: Some kits were supplied without MIX pot. Will be shipped TOMORROW.
Sorry for any kind of inconvenience.
Umit, thanx for pointing here.

B- I got all Voltages and good news every voltage is correct ! PSU and main PCB too but,

That's great news!

- when I send a signal 1K | 0dB [1V etc ] I see nothing on Vu LED !
- Send 1K and move trshld pot and nothing change! same ratio/attack/Reales/Make up/sidechain

NP, we will work this out tomorrow, lemmie post meter adj procedure.

C- on VCA's I didn't have 732R %1 1/4 W but I used 732R %0,5 0,125 W ?

That's fine. Umit, just for my reference, please send me by mail missing components list.
The kits were assembled by way: 25 bins are filled with same components than checked again,
than packed into their bags.
732 Ohm resistors were included with VCA replacement board components, Bag Nr 12 of Basic Kit.

Last, I would like to start first calibration if I can get any info for my questions Smiley

NP, will do my best to find a hour tomorrow.

 

[Igor]

Hey Guys,

Happy new year !  Happy new year !  Happy new year !

I almost finished to my unit but just I want to be sure all wires connections are right ?
if you have any idea it will be great !
Thanks

http://i1236.photobucket.com/albums/ff442/jandoste/connections.jpg

Regarding this post, C&B(MIX), LINK and pot connection.
LINK: GSSL or Oxford mode detector link switch.
C&B(MIX) and LINK goes to illuminated latched pushbuttons or toggle+LED on LED meter's PCB.
Switch and +/-LED are marked on PCB.

Happy New 2011 Year and all the best wishes!

 

[Igor]

BTW, if somebody need a case and front, please check
http://www.diy-racked.com/diy-talk/viewtopic.php?f=7&t=110
as option.

 

[jandoste]

Hi guys, sorry for delay with reply.
Had a little vacations, rest and back here.
Umit: the LED calibration procedure will be added ASAP, just let me get to workshop and free hour
I assume, you assembling the full version, like mine.
This is not a standard option for attack/release, supplied with kits
(the kits are supplied with switch option, like an original compressor).
Instead of attack/release boards, it goes like here:
http://www.groupdiy.com/index.php?topic=40766.msg510118#msg510118
Please check as well attached photo....more-very soon....

Igor,
I am building the full version too if you can put some more pictures[for attack/release] will be great !

 

[Igor]

Great! Hopefully, few days and your MB1 will be up and running.
The MB1 unit working now full-time job at DB Studios, I can take a pictures when in Tel Aviv
(it is ~100 km from my workshop), but later. For now, let's try to solve it by other way.
Can wiring diagram (drawing) help here?

 

[jandoste]

Great! Hopefully, few days and your MB1 will be up and running.
The MB1 unit working now full-time job at DB Studios, I can take a pictures when in Tel Aviv
(it is ~100 km from my workshop), but later. For now, let's try to solve it by other way.
Can wiring diagram (drawing) help here?

I can't see the resistor and caps that you have used there?
I was asking about the trshld and the others have no changes when I move them because I didn't do the calibration or I am missing something )

 

[tomcat]

BTW, if somebody need a case and front, please check
http://www.diy-racked.com/diy-talk/viewtopic.php?f=7&t=110
as option.

Miss the blackface. But what bothers me more is the position of the bypass button. Like it more on the right side, like the old ssl cases. If it stays like this i will have to go the schaeffer route.

Igor, did you post fdp files of your case or are you willing to share them? Would be a great help not to begin at zero

 

[Igor]

Front panel drawing in Corel Draw format:
http://twin-x.com/groupdiy/thumbnails.php?album=416
download the file "MixBuzz1 Front CDR's"
Everything separated by layers, 0.2mm engraving v-groove, 3.16mm milling tool (holes),
pcb outlines/components centers, Schroff 1RU front panel drawing.
Feel free to post a link to .fpd file.

BTW, for those who using attack/release potentiometers, here is wiring diagram:

 

[jandoste]

http://www.groupdiy.com/index.php?action=dlattach;topic=41654.0;attach=6011;image

Thanks Igor,
Second Pot is 1/2 meg or we need just 2x 100K log?
or if I use the small PCB for Attack pot so I can't use Dual/single switch option?
Thanks,

 

[Igor]

Attack: pot or switch, value changes from 820R to 100k.
I used log pot here, 'cause I prefer to have extended "fast" range.

Release: pot or switch, value changes from 100k to 1megOhm at least.
I.e. use linear pot with 1meg, or 1.5meg, or 2meg value.
Release switch board changes both resistors and capacitors, at 5th and 6th positions,
there are "dual release" settings.

General recommendation:
attack pot: 100k LOG
Release pot: 2 meg lin

 

[jandoste]

Front panel drawing in Corel Draw format:
http://twin-x.com/groupdiy/thumbnails.php?album=416
download the file "MixBuzz1 Front CDR's"
Everything separated by layers, 0.2mm engraving v-groove, 3.16mm milling tool (holes),
pcb outlines/components centers, Schroff 1RU front panel drawing.
Feel free to post a link to .fpd file.

BTW, for those who using attack/release potentiometers, here is wiring diagram:

Hola Igor,
is it right? on the picture, red wire goes to ATK 1, black one is ATK 2
But on "wiring diagram" picture is not same ?

Cheers,

 

[AW_music]

Hi Igor,
glad you are back from holiday.
Sorry if I am bothering you with lots of email, but I am not getting any feedback from you and I am wondering if you receive them at all?  ??? ??? ???

Also I have some components missing from the MIXBUzz and the switch from the Helios projects, do you have any idea when they will be shipped?
I'm Building MIXBUZZ kit with MATA_HAZE here in Italy, he will send you an email with all the missing components from both our kits.
Would you be so kind to send them all to my address ?

ANyway, we have a question regarding the RATIO:
can you confirm that the plug in board will give the compressor 6 ratio settings like on the one in your pictures? 1.5,2,4,6,8,10.

Here is the progress of our work with this incredible building :

 

[jandoste]

Igor,
I am waiting for finishing to my mixbaby
So I tried to do calibration but I couldn't... I changed also the atk and rel pots !

pre result;

- Mix  is working but I can't control it with the pot! I move it but nothing change!
- Vu LED is working but didn't do the calibration
- VU Gr doesn't work
- Make up "          "
- Trshld    "        "
- Atk and Rel "    "
- Sidechain
- Dual and soft switches same

Ok, Relax

 

[jandoste]

Ok, I got some pictures here,

I am not sure for the ATK and REL Pots and wires !?

REL POT 1M ;

- First (On the picture) leg [CCW]  goes to ATK 1
- Secong leg to REL 2
- third[CW] 3uf3 --> 100k[%5] --> to dual S2(EDIT)

Is that right?


ATK POT 100K LOG

- First leg [CCW] to ATK 2 On Main PCB
- second , is empty !!!!!
- third[CW]  leg goes to ATK 1 "      "
and btw first leg and  Single-S2(EDIT)- small wire..

maybe some of you have already got it ?


Cheers,

 

[Harpo]

maybe only a lot of typos, but

REL POT 1M ;
- First (On the picture) leg [CCW]  goes to ATK 1
- Secong leg to REL 2
- third[CW] 3uf3 --> 100k[%5] --> to dual S1
Is that right?

- First (On the picture) leg [CCW] goes to 100k resistor. 100k resistors other side goes to ATK 1.
- Second [wiper] leg linked with third [CW] leg to REL 2.
- third[CW] (or second, this is at 0V potential) --> 3uf3 --> 100k --> to pole [center pin] of S2.
- third[CW] (or second) --> 0.47uF (=470nF) --> to 'dual' throw pin of S2.

ATK POT 100K LOG

- First leg [CCW] to ATK 2 On Main PCB
- second , is empty !!!!!
- third[CW]  leg goes to ATK 1 "      "
and btw first leg and  Single-S1- small wire..

- First leg [CCW] to 820R. 820R resistors other side to ATK 1 On Main PCB.
- second [wiper/center leg] is linked to third [CW] leg.
- third[CW] leg (or second leg, they are linked together) goes to ATK 2.
- third[CW] leg (or second leg or ATK 2) goes to 'dual' throw pin of S2.

Have a look at the schematic again. From your pics,
your S2 with switch pole not connected is doing nothing,
your pot with wiper (second/center leg) not connected isn't operating as a variable but only as a high tolerance fixed resistor.

 

[jandoste]

maybe only a lot of typos, but

REL POT 1M ;
- First (On the picture) leg [CCW]  goes to ATK 1
- Secong leg to REL 2
- third[CW] 3uf3 --> 100k[%5] --> to dual S1
Is that right?

- First (On the picture) leg [CCW] goes to 100k resistor. 100k resistors other side goes to ATK 1.
- Second [wiper] leg linked with third [CW] leg to REL 2.
- third[CW] (or second, this is at 0V potential) --> 3uf3 --> 100k --> to pole [center pin] of S2.
- third[CW] (or second) --> 0.47uF (=470nF) --> to 'dual' throw pin of S2.

ATK POT 100K LOG

- First leg [CCW] to ATK 2 On Main PCB
- second , is empty !!!!!
- third[CW]  leg goes to ATK 1 "      "
and btw first leg and  Single-S1- small wire..

- First leg [CCW] to 820R. 820R resistors other side to ATK 1 On Main PCB.
- second [wiper/center leg] is linked to third [CW] leg.
- third[CW] leg (or second leg, they are linked together) goes to ATK 2.
- third[CW] leg (or second leg or ATK 2) goes to 'dual' throw pin of S2.

Have a look at the schematic again. From your pics,
your S2 with switch pole not connected is doing nothing,
your pot with wiper (second/center leg) not connected isn't operating as a variable but only as a high tolerance fixed resistor.

Thanks Harpo,

just I didn't do this,

- second [wiper/center leg] is linked to third [CW] leg.

cheers,

 

[piano]

Hello Igor,

I have your complete kit with the exception of the SoundPath Upgrade - coming.....

I would like to add the standard compression meter (8027-B Meter from Hairball) to the kit. Can this be done? Specifically, can I drive BOTH meters at the same time. If not, can I have the G.R. switch to the meter? Thank you, David.