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i received today the lm7805c , i put it and the pedalboards work well :P , the problem finally is solved, thanks so much to all helps and coments

now remove the motherboard only one hand to get a better view of the circuit and see where they come 5v and could find a single component that converts 12v to 5v , is LM7805C volt regulator, tomorrow volvere to ride the circuit and check that It is working properly, if it does not work I'll make...

My problem now is I can not where they come from 5v on the motherboard , since they will be on the other side

I have looked at the multi bridges near the midi system and found one another 12v and 5v . which works with 12v is correct , the other only gives 0.7V and 5V is connecting with v1 and have 0,7v in the mother board, so I think the problem must be in this part of the circuit. Slowly I...

the problem is the midi power only, the rotary switching of the rear panel works great, change channel well, and the external switching via jacks of the rear panel works, the both systems works, but the midi no.... i was trying to find a cold solder,or any burned component but all are great...

find the scematic of that model will be more difficult to me, but y will try

i put the 2 diodes , later put a resistance probe 4 / 5k ​​as shown in the circuit without results, and later a 10k equal to the one in the photo shemham without results, i think the cause will be a power failure of the midi system.

ammm ok. After putting the 10k resistors and diodes like yours, the pedal remains the same the midi dont work, thanks so much for all the responses

Hello everyone , I RECEIVED a photo of another user i have noticed another difference from the mine, in the photograph bridges not bring mine observed , but said if the resistances are both 10k . USER PHOTO ME PHOTO I think anyone would modify an amplifier to malfunction , especially when it...

ok, so i have to remove the gray cable no? in place of 4 / 5k I have to put a resistor of the same value I guess??

It may be repaired, but if the cable comes from the factory as it is used throughout the wiring looks controls: The question is , or where it is assumed that the cable ends, that is the reason why im trying to find a photo of another 2010 head to see that

Hello Dom , the amplifier is used as a store but it was with all his papers , valves and hardly original use, the pedal works well in other amp except this one. 9,88k found a resistor in place of 4 / 5k this is normal? the last resistor of 9,88k was in the site of 4/5k, i have the diode...

https://imageshack.us/my/images And a video of the pedalboard only do https://www.youtube.com/watch?v=9JUP4MclEa4

i dont know if i can help you so much, but i have another 2010 recto dual with problem, my problem is the pedalboard, never works, and i find a cable ulsoldered, but i find where is the relay and the switching diode of the loop, in these photo you can see 1 relay orange in the left board, that...

Hi , everyone i bought a mesa boogie dual rectifier multiwatt the last year, and the pedalboard never works, today i opened it a find a unsoldered cable and i try to find a photo or another multiwatt opened to see where these cable go, if anything can help me to solve this problem?, sorry for my...