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Avatar for MicroSonic

I have been collecting schematics for 30 years and 5 years ago I started make them available at my site www.SecretMind.dk but...

MicroSonic
replies: 91 views: 142,442
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jokeramik 3 days ago
Avatar for Tim Farrant

The GUTZ

139


OK, something to spice up GeekZone = here is where we post images of the INSIDE of audio equipment. Disclaimer; any photo...

Tim Farrant
replies: 1,169 views: 602,500
Avatar for Rtroost
Rtroost 25th July 2022
Avatar for Tim Farrant

Anyone who offers technical services should get themselves listed into the new member directory here... Gearspace Directory:...

Tim Farrant
replies: 11 views: 57,077
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play/record 26th June 2022
Avatar for gabriel1

DSP Innovations has recently launched a FREE data sheet search site. The site, Datasheetpro.com - Search Electronic Components ,...

gabriel1
replies: 19 views: 68,007
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msbettyhunt 27th March 2020
Avatar for dogma

Hey All - exactly as stated in the thread title - I bought a Matrix 1000 and the seller "forgot" to put in the...

dogma
replies: 12 views: 2,129
Avatar for JohnTyler
JohnTyler 8 hours ago
Avatar for themachinesoul

dear Geekslutz, I accidently fried a Matrix-1000 that was configured for 120 volt by plugging it into 220 volt - :facepalm:...

themachinesoul
replies: 10 views: 2,020
Avatar for JohnTyler
JohnTyler 9 hours ago
Avatar for 5.333V

i bought an old psu for my soundcraft dlx delta some months ago. it has been working fine until the other day when i couldnt get...

5.333V
replies: 120 views: 16,251
Avatar for Monotremata
Monotremata 12 hours ago
Avatar for chriscaldwell11

Hello, I am having some issues with my Focusrite 430 MKii Producer Pack. The Trim knob no longer has any effect, there's a bit...

chriscaldwell11
replies: 9 views: 191
Avatar for chriscaldwell11
chriscaldwell11 1 day ago
Avatar for Aaargh

Hi, I've just purchased a second hand ULN-2 3D for a fair price. Now i've got my old ULN-2D that i'm no longer going to use....

Aaargh
replies: 2 views: 113
Avatar for Aaargh
Aaargh 1 day ago
Avatar for bogy1

so I got this yamaha PM 700 pretty cheap its my understanding they are very similar to the PM 1000 I was actually thing of...

bogy1
replies: 7 views: 5,824
Avatar for rjb5191
rjb5191 1 day ago
Avatar for Dainofmaine

Hey there hive mind, I have a Sennheiser MD421 U 5 That was working one day and now it is completely not producing any sound...

Dainofmaine
replies: 0 views: 37
Avatar for Dainofmaine
Dainofmaine 2 days ago
Avatar for Hint

Hi all I'm hoping someone can help me diagnose an issue with my monitors. I have a pair of SE Munro Egg150s, bought...

Hint
replies: 57 views: 9,591
Avatar for geolang
geolang 2 days ago
Avatar for zMic

Hello, I'm trying to figure out what could cause the noise I hear when operating this unit on manual attack/release mode....

zMic
replies: 1 views: 336
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zMic 2 days ago
Avatar for 3minute Tantra

Hello, I ve got a pair of great sounding 1:1 room isolation transformers out of an old East German radio station. They look...

3minute Tantra
replies: 2 views: 69
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3minute Tantra 2 days ago
Avatar for jokeramik

Hello, a lot of people have difficulties to connect their RFZ units (V781, V741, V740 and so on) or units from VEB Funkwerk...

jokeramik
replies: 0 views: 46
Avatar for jokeramik
jokeramik 3 days ago
Avatar for Clbraddock

This question relates to the attached diagram I made. I understand how the RC High pass filter at the top works. The...

Clbraddock
replies: 1 views: 59
Avatar for samwinston123
samwinston123 3 days ago
Avatar for jokeramik

Hi, if you need some informationes or schematics about amplifiers and other gear from the "Rundfunk- und...

jokeramik
replies: 5 views: 528
Avatar for jokeramik
jokeramik 3 days ago
Avatar for smnmusik

My oberheim Matrix-12 could use some new rotary encoders. Does anyone know where to look for this?? Thank You

smnmusik
replies: 8 views: 1,958
Avatar for AuldLangSine
AuldLangSine 4 days ago
Avatar for Kidsdwgh

Alright. First post so please feel free to give feedback. I’m looking to either build or buy a monitor controller. I feel...

Kidsdwgh
replies: 3 views: 103
Avatar for Kidsdwgh
Kidsdwgh 4 days ago
Avatar for Thomas W. Bethe

The local college used to have some students in their physics department who were interested in learning about audio electronics....

Thomas W. Bethe
replies: 33 views: 605
Avatar for RayHeath
RayHeath 4 days ago
Avatar for minanapil13

hallo i replaced all the filter capacitors in my SE4400a and still get this noise can any one help me plz cable changed and...

minanapil13
replies: 1 views: 118
Avatar for ANVM
ANVM 5 days ago
Avatar for Chagalj

There has been alot of talk about importance of conversion in recording chain, and lots of people want to know which AD/DA chip...

Chagalj
replies: 582 views: 420,098
Avatar for DAH
DAH 5 days ago
Avatar for makasi

Hi everyone, Apparently one of my Adam monitors just stopped working from a moment to another. I have a few doubts for the...

makasi
replies: 12 views: 6,109
Avatar for makasi
makasi 5 days ago
Avatar for ForseFrits

Hi Guys, I hope there is someone who can help me :) I have tried to repair both my KRK Rokit 5 RP2 speakers. What I have...

ForseFrits
replies: 1 views: 71
Avatar for Johnny T
Johnny T 5 days ago
Avatar for The Gentleman

I brought my Mac (OS X El Capitan) to the Best Buy Geek Squad today and they weren’t able to figure out the issue either....

The Gentleman
replies: 0 views: 55
Avatar for The Gentleman
The Gentleman 6 days ago
Avatar for rockreid

Can any standard 16x2 screen be used with an old Ultraproteus? The original screen seems to be on its way out. I checked the...

rockreid
replies: 2 views: 578
Avatar for The Dazzler
The Dazzler 6 days ago
Avatar for Bramley

I have a Tascam DA30 machine, on loading a tape the open/close button keeps flashing then the tape ejects. Any hints on where to...

Bramley
replies: 4 views: 129
Avatar for Bramley
Bramley 6 days ago
Avatar for UpperLeft

Hi there, I am a long time reader, now a first time poster - here we go: I have got a Eventide H3500 DFX with the right...

UpperLeft
replies: 9 views: 1,323
Avatar for Spindrift
Spindrift 6 days ago
Avatar for VT-MHE

I have an issue with one of the woofers on my event opals. depending on the type of low end frequency you hear an audible...

VT-MHE
replies: 4 views: 82
Avatar for VT-MHE
VT-MHE 1 week ago
Avatar for Bonsaipanda

Just out of curiosity I thought I'd ask here if anyone's done a sidechain mod to the Electro-Harmonix Platform? I'm staring at...

Bonsaipanda
replies: 0 views: 45
Avatar for Bonsaipanda
Bonsaipanda 1 week ago
Avatar for Shlomi.stern

Hi. Do you have better idea? I am a gear desing. :facepalm:

Shlomi.stern
replies: 0 views: 75
Avatar for Shlomi.stern
Shlomi.stern 1 week ago
Avatar for Gus_Pin

I found this Siemens/telefunken(?) module labled ”Hb 50 nr 7” I cant find any info about it online, so i wonder if someone...

Gus_Pin
replies: 2 views: 142
Avatar for gyraf
gyraf 1 week ago
Avatar for Radardoug

Hi Guys, I'm repairing an EMT248 at the moment, the power supply went high and took out a load of chips. Does...

Radardoug
replies: 24 views: 5,565
Avatar for Areft
Areft 1 week ago
Avatar for Jomo

Somehow I had completely forgotten about the existence of the E-Series Signature Channel that SSL released as part of their...

Jomo
replies: 2 views: 215
Avatar for midnightsun
midnightsun 1 week ago
Avatar for drshakamoto

Hi there, My one of my Adams T5v's is not turning on. I assuming its due to a blown fuse, but I can't figure out where inside...

drshakamoto
replies: 0 views: 54
Avatar for drshakamoto
drshakamoto 1 week ago
Avatar for robmendoz3

Hi everyone. I recently bought a Juno 106 from ebay. I noticed that there was some crackling sounds after I played the keyboard...

robmendoz3
replies: 8 views: 6,817
Avatar for focusclear
focusclear 1 week ago
Avatar for gevermil

Dose anyone have one ????? Need some info please . Thanks G

gevermil
replies: 8 views: 11,290
Avatar for play.exe
play.exe 1 week ago
Avatar for plutoniq

I’m in the process of restoring my 2nd Yamaha CS-70M for an acquaintance, really going to town on this one as I’m hanging up...

plutoniq
replies: 1 views: 76
Avatar for plutoniq
plutoniq 1 week ago
Avatar for lynxpoint

Hi all, so there is a lot of stuff around here on DIY audio gear, and many conversations occured like 6-7 years ago. So I think...

lynxpoint
replies: 6 views: 9,270
Avatar for FreakinPavel
FreakinPavel 1 week ago
Avatar for Uby62

Hi everyone! I need to repair a Ddrum AT module : the trigger inputs are not working and i have distortion on outputs, and the...

Uby62
replies: 20 views: 2,656
Avatar for Johnny T
Johnny T 1 week ago
Avatar for althemusicwizard

I have a Tascam RC-88 I am selling and a guy wants to know if it will work with the TSR8. The RC88 is the dedicated remote for...

althemusicwizard
replies: 7 views: 387
Avatar for Zipp0
Zipp0 1 week ago
Avatar for Duane0270

Hello . I am trying to source detented potentiometers. Namely 41 clicks , 100k dual gang 16 mm type. Does anyone know of any...

Duane0270
replies: 1 views: 94
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 week ago
Avatar for wjohn

I made a few things in 2021, but I've got a backlog of kits and projects to build this year: Pair of Matador/Chunger C12...

wjohn
replies: 43 views: 2,803
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 week ago
Avatar for cmackenz

Hi, Probably a long shot, but I'm looking for the service manual and/or schematic for the original JBL 7510 (not the 7510A or...

cmackenz
replies: 3 views: 132
Avatar for cmackenz
cmackenz 1 week ago
Avatar for starfield

so to make a long story short I came upon an old arp solina (first version) a while back and failed to open it up and check it...

starfield
replies: 30 views: 5,560
Avatar for Lamster
Lamster 1 week ago
Avatar for ozbox

Hello. Does anyone have tech manual for this console? I know that audiomaintenance is selling full manual. But it's real pain...

ozbox
replies: 13 views: 7,310
Avatar for Rodv
Rodv 1 week ago
Avatar for focusbob

Hi, I knowingly bought an "untested" DBX 160x compressor that happens to not work properly, and I would like to fix it....

focusbob
replies: 2 views: 93
Avatar for focusbob
focusbob 2 weeks ago
Avatar for arbor

Hi all, My SPX90 (Mk I) stopped working. I've replaced all electrolytic caps and a couple of resistors. I've scraped all...

arbor
replies: 79 views: 1,625
Avatar for arbor
arbor 2 weeks ago
Avatar for Aniol1349

Hello! I'm looking for pre amp schematics for the MCI 500D series console. I have the channel strip schematics however the...

Aniol1349
replies: 13 views: 4,655
Avatar for Clomi
Clomi 2 weeks ago
Avatar for johannburkard

I've had a project on the desk ("bench") for a while now where I'm trying to build cheap class D chips amps into 9V...

johannburkard
replies: 2 views: 92
Avatar for johannburkard
johannburkard 2 weeks ago
Avatar for Capashitor

Recently a user pm'd me about specifics regarding the midas venice 1st gen console, so I thought I'd share my current project as...

Capashitor
replies: 31 views: 1,931
Avatar for NeonCQ
NeonCQ 2 weeks ago
Avatar for Riccardo

Anybody around here with info or advice, infinite wisdom or contacts for somebody capable of helping us fixing our Tore Seem...

Riccardo
replies: 21 views: 8,900
Avatar for akem
akem 2 weeks ago
Avatar for ringo.fire

Hello when I rented my studio 10 years ago I got this SEEM audio broadcast console included. i wonder if anybody in germany(...

ringo.fire
replies: 8 views: 9,465
Avatar for akem
akem 2 weeks ago
Avatar for defunkmike

So my beloved Audient ASP800 died the other day. Worked fine last session, now it has no power. The fuse was blown and as soon as...

defunkmike
replies: 5 views: 1,191
Avatar for Fuzby
Fuzby 2 weeks ago

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