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Mark Anthony Contreras

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MESA/BOOGIE TRiaXis Guitar PreAmp.Lead 1 Drive Channel Not W
Mark Anthony Contreras
Zoom LiveTrak L6 using Click track for my Drummer. Also usin
Mark Anthony Contreras
Kurzweil pc3k8 booting problem | No Display❗️
Mark Anthony Contreras
KORG m50 Touchscreen Problem! | Touch Panel Replacement.
Mark Anthony Contreras
KORG TRITON PRO X ( LCD, Touch Panel Replacement )
Mark Anthony Contreras
KORG KRONOS TOUCH PANEL REPair❗️
Mark Anthony Contreras
KORG TRITON LE | KORG TRITON RACK | KORG TRITON . NO DISPL
Mark Anthony Contreras
Boss ME-25 Flecking Display and Noisy Sound. Done Fix!👌🏽👌
Mark Anthony Contreras
Korg microKORG Sensitivity PROBLEM! | Fix
Mark Anthony Contreras
ROLAND RD 700sx | Stage Piano | Intermittent Sound | Fix | R
Mark Anthony Contreras
Roland fantom 06/07/08 | Livin' On a Prayer.
Mark Anthony Contreras
Chocolate M-Vave Footswitch and M-Vave Midi.Changing Group S
Mark Anthony Contreras
ROLAND SPD-30 | Fix | Noisy BUZZING SOUND!
Mark Anthony Contreras
KORG KROME 61 | fix | | Repair | Replacing LCD DISPLAY and T
Mark Anthony Contreras
“LANEY IRONHEART | Fix |Repair | Shorted Amplifier i.c.PROBL
Mark Anthony Contreras
ROLAND SPD-SX | POWER ON AND OFF | PROBLEM SOLVED! | Fix |
Mark Anthony Contreras
Fender twin Reverb Amp | Buzzing Noisy Sound | Fix | Problem
Mark Anthony Contreras
LANEY LIONHEARTED L20H “NO POWER” PROBLEM SOLVED!
Mark Anthony Contreras
DiY Foam cutting tools for my ROLAND FANTOM 07 | RiFFLE HARD
Mark Anthony Contreras
Behringer S16 Digital snake Channel NO POWER | Done Fix!
Mark Anthony Contreras
"NOVATION Xio 25 | Fix | Repair | PROBLEM SOLVED!✔️👌
Mark Anthony Contreras
YAMAHA CLP 220 | NO POWER | HELP and Tips!!
Mark Anthony Contreras
KORG SP-250 | NO SOUND REPAIR | Fix |
Mark Anthony Contreras
YAMAHA MOTIF XF8 | SUNKEN KEY | NO SOUNDS | NO DISPLAY ( Fix
Mark Anthony Contreras
Home Service.ROLAND RP501R Upright Piano.Done repair!
Mark Anthony Contreras
FENDER MUSTANG GTX50 Guitar NO DISPLAY |NO POWER | REPAIR ✔️
Mark Anthony Contreras
Roland JUNO DS 61| Fix | Repair | Battery Acid Leakage ( Cor
Mark Anthony Contreras
Shure SM58 Wireless Mic | Soaked in Water Fix | REPAIR.
Mark Anthony Contreras
NORD STAGE PIANO 2 | Random Running Program Number | Sunken
Mark Anthony Contreras
Korg Micro Arranger | NO SOUND!!! | Fix | PROBLEM SOLVED ‼️�
Mark Anthony Contreras
Aguilar ARGO NO POWER . Done Repair | Fix | Problem solved.
Mark Anthony Contreras
ROLAND R-A Drum Machine. Done repair | fix | Problem Solved
Mark Anthony Contreras
Roland SPD-11 NO SOUND | DONE REPAir | fix
Mark Anthony Contreras
Korg M3 LCD Replacement | Repair | Fix |
Mark Anthony Contreras
Save a Prayer by Duran duran | Roland fa 06/07 COVER.
Mark Anthony Contreras
Yamaha MX61 Low Output (Left/Right|MONO/Phones. | Fix
Mark Anthony Contreras
ZOOM LiveTrak L-8" | NO POWER | REPAIR | Fix.
Mark Anthony Contreras
KORG M50" Crackling Sound | Fix | ( Phones )output.LOW
Mark Anthony Contreras
AMPEG Micro VR BASS Head Amplifier | Fix |Noisy Sound | Pote
Mark Anthony Contreras
KORG KRONOS 1 / KORG KRONOS 2 | LCD fix! | REPLACING Touc
Mark Anthony Contreras
ALLEN&HEATH Qu-24 | FADERS PROBLEM | Fix | PROBLEM SOLVE
Mark Anthony Contreras
Within You'll Remain WO AI NI | intro cover | Roland FA0
Mark Anthony Contreras
"BOSS ME-25""FLICKERING Random DISPLAY!!! |
Mark Anthony Contreras
BOSS ME-70" Flickering Display | Noisy Sound | ERROR PR
Mark Anthony Contreras
Beat it by: Michael Jackson Roland fa 06/07 intro |
Mark Anthony Contreras
CASIO PRevia PX-150 Digital Piano. | NO POWER. | SUNKEN KE
Mark Anthony Contreras
KORG Triton Classic | Sunken Keys | Done Repair!!! | Fix | D
Mark Anthony Contreras
HOTONE Ampero ONE Multi-Effects PEDAL PROCESSOR! | "Noi
Mark Anthony Contreras
How to Explode a CAPACITOR!!!
Mark Anthony Contreras
Yamaha P-95 Digital Piano |NO POWER| Fix | Yamaha Digita
Mark Anthony Contreras