MTX Blue Thunder AMP

[S Merlington]

Not sure the exact model number of that amp since the sticker on the back plate is missing..
i think its the 1502..

Anyway the power supply fets are defective in this amp the orginals are STP50N06..

Will the FQP50n06 or the Z44's make a good replacement??

 

[Perry Babin]

Either of those should work.

You need to get set up so that you can take and post photos quickly/easily.

 

[ADRIANd]

hi

hi S Merlington

A long time ago perri babin helped me to fix my mtx blue thunder 1502 amp

i installed IRF 3205 for the power supply the amp uses 4 and uses IRF540 for the output and worked great.

i need some help from you the resistors R11 and R121 was missing when i fix my amp and i installed 680 ohms 2 w and the amp worked fine, but i noticed some signs of overheating in a resistor near that Rs, could you tell me the value of the R11 and R121 of your amp thanks in advance i really apreciate your help

 

[mbates14]

just got one of these things in earlier this week. Same deal, bad outputs/power supply.

 

[mtx blue]

Hi everyone I'm new to this forum and this site is great I know this thread is older but I have a similar problem with a mtx 1502 and I looking for some help with a schematic for this amp does anyone here possibly have one or know where I may be able to find one thanks ahead of Time I have a feeling this may be my new favorite site lol I have a lot of older equipment and some of it is in need of some love !

 

[ADRIANd]

Hi mtx blue, im tryng again yo repair my amp it worked several year, but one cable output toched ground and this damaged the output fets.
I Was tryng to get schematic of this model with no luck
Could yo please take a picture of the inside of this amp

 

[ADRIANd]

i need that pictures to get the values of the resistors R11 and R121 thanks for your help if you could please take several pictures so i can see the value of that resistors. Thank you in advance

 

[ADRIANd]

Some one that could help me with the value of the resistors i mentioned thank you so much

 

[jkrokenberger]

I have the next gen Thunder 8302 which is the SMD version of the same amplifier. I will open one and get back to you on the values if the numbers correspond at all.

Jason