Behringer ULTRAGRAPH PRO FBQ3102, Fault and fix

[@K17KFi7]

Those two 390 Ohm power resistors are the bane of this equipment. They are part of some shady design choice by Behringer, which kills the equipment by overheating. Users should always keep the FBQ function on, to keep thermal dissipation at a manageable level. When you shut off the FBQ thing, all the fader LEDs should light up to max. Those resistors supply the fader LEDs, passing enough current to cook themselves and their surroundings when FBQ is off. All the electrolytics close to these resistors dry up and die soon and it's common to find one of the regulators dead too, certainly because of the prolonged overheating caused by the additional power dissipation inside of the entirely sealed enclosure.

[@klause81]

I have one with same issue. I will follow your findings to fix mine. Thanks.

[@roberthpedrozo3324]

Amigo que resistencia lleva en la placa pequeña en dnd se ve un condensador

[@dirtybassmusicgroup1678]

Great video and thanks for sharing, i have the same issue with 1 channel on my dbx 231 31 band eq, can you offer any assistance???

[@philandre6190]

Hello, I also have a problem with the top lane. Not a lot of sound and saturation .. I have redone the power supply but have not yet changed the capacitors on the front plate.. Do you think this is the solution? Thanks a lot

[@joseortego7930]

mi falla de mi ecualizador es que del canal 2 4:49 / 13:14 Behringer ULTRAGRAPH PRO FBQ3102 clipea rojo y hase sonido de trueno junto ala musica que componente estaria mal x faqvor edspero su ayuda

[@roberthpedrozo3324]

Donde tiene el número 115 quisiera saber q número de resistencia es ya q tengo uno y tiene eso dañado

[@waynephillips1848]

Hi sorry i dont have a circuit diagram for this unit, and i have since sold the Ultragraph.

[@allwayzactive4599]

Is it worth it tho will it just brake again

[@AKSKMY]

Suddenly got the 250Hz lighting up constantly and no audio signal going thru. Disengaged Audio In then still works as a bypass. Any tips? I probably should just find alternative solutions haha too old of a system.

[@geraldsionzon7235]

6:20 What the value of that resistor?

[@waynephillips1848]

large resistors 390R small resister 1206 1k5 as per legend on the PCB

[@rubenfernandez4578]

@@waynephillips1848 large resistors colors are orange, white and brown?

[@nestorluismendezmolina6539]

yo tengo uno y da esa falla si tener senal de audio

[@jamocerwin5841]

Low quality equalizer.

[@SHREE773]

Hi quality equalizer brand name and model no ?

[@allwayzactive4599]

The name is cheap bro this is low end gear ​@@SHREE773

[@vertigo8715]

Issue I have with mine is all the leds dim or flicker

[@thekillcandys]

I have a different problem: although channel 1 and 2 get the same input level, only half of it is output at channel 2 (compared to channel 1). Does anyone have a similar problem or tips to fix this? Thx