hi all
i have montarbo w440a
amp board have 2 pair of mje 15035&15034
1 of the pair are shorted and became faulty after a problem in amp board
i need replacment for it
i didnt find it in my country
i will put schematic for amp
thnx
i have montarbo w440a
amp board have 2 pair of mje 15035&15034
1 of the pair are shorted and became faulty after a problem in amp board
i need replacment for it
i didnt find it in my country
i will put schematic for amp
thnx
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.any one please have this montarbo w440a help me with photo of amp board so i can fix mein
i get the amp with many problem burned component carbon evreywhere
track on pcb are burned
those photo on zip file showing pcb condition
i get the amp with many problem burned component carbon evreywhere
track on pcb are burned
those photo on zip file showing pcb condition
thats why i ask for help
i clean the board and replace all component but still some pcb track removed
i cannot identify it
I did a quick search and I see you have been at this fault for two years, you have pics of intact pcb and you have schematic in other words you are wasting everybody's time.
sorry if i lose your time
no need for help from people like you
i ask help from people that want to help
not people ho make such judgment like you
Sorry to say, but apparently this PCB needs to be replaced in toto. I don't see any chance to get rid of these burns otherwise.
And yes, MJE15034 and MJE15035 really aren't that exotic.
Best regards!
And yes, MJE15034 and MJE15035 really aren't that exotic.
Best regards!
hi
i success cleaning all board but unable to fix burned track
or to be clear unable to find right pinout
Hi,
I guess the FR4 itself may have become leaky by that carbonization. A PITA to fix, if any at all.
Best regards!
I guess the FR4 itself may have become leaky by that carbonization. A PITA to fix, if any at all.
Best regards!
Tiesto I have repaired pcbs with worse burn damage.
The carbonised areas of the pcb need to be removed and then new conductors fitted and these can be wires or copper foil cut to suitable shapes.
These pics Italian Made Powered Speaker will help you but ultimately you need to recreate the schematic on the pcb.
You have had two years or so to do a job that I would have complete in a couple of hours, like I said with schematic in hand the job is self evident, if you cannot read a schematic then you are out of your depth.
Max.
The carbonised areas of the pcb need to be removed and then new conductors fitted and these can be wires or copper foil cut to suitable shapes.
These pics Italian Made Powered Speaker will help you but ultimately you need to recreate the schematic on the pcb.
You have had two years or so to do a job that I would have complete in a couple of hours, like I said with schematic in hand the job is self evident, if you cannot read a schematic then you are out of your depth.
Max.
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hi again
honestly i last 2 year i was have many issue witht this amp
trasnformer faulty
filter card faulty
i was have no intrest to fix it because it was bad damage
i not 100 % professinel amp or audio repair guy just a hobbie or have such good talent like you
my problem is there is 1 pcb track is under diode and resistor are burned
all other track are restored fine
pcb cleaned and in good condition now
sure no problem when i finishh working on it and apply some improvment i will post some pics