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<blockquote data-quote="Whitetiger619" data-source="post: 7792239" data-attributes="member: 642503">Ok I bought two used mtx 1501d car amps off ebay... yes before you go into bashing me at least hear me out on this one.. I took out the multimeter and tested the &quot; Bad &quot; mtx 1501 the one that does not play at all nor turn on...&nbsp; I noticed two negitive things right off the bat... Diode R115 is burnt.. But i cant seem to find the right replacement part for that one.. MTX.com has yet to call me back to help me out.. Also the out put &quot; transistors &quot; seen to be at a very low resistance level .364 on all for of them... They look like mosfets but with 2 legs not three . The only part numbers on the transisters i seen were U1540&nbsp; and cq412 i have tried all major retail stores &quot; digikey &quot; mouse &quot; etc.. but yet nothing cam close to what im looking for..Now the good amp that does power on but has a very krazy output signal seems like the subs move but no bass... I did test the &quot; output transistors and they tested in resistance .900 .450 .450 .900 Now im thinking that the .900 is the good ones a the .450 is the bad ones. Since the Bad amp had a lower resistance level based on that alone.Does any one know of a direct replacement part for these amps ? the mtx 1501d is the same board as the mtx 81000d board... Any help will be helped. Thank youLong Live The AMP GODS !</blockquote>

[QUOTE="Whitetiger619, post: 7792239, member: 642503"] Ok I bought two used mtx 1501d car amps off ebay... yes before you go into bashing me at least hear me out on this one.. I took out the multimeter and tested the " Bad " mtx 1501 the one that does not play at all nor turn on... I noticed two negitive things right off the bat... Diode R115 is burnt.. But i cant seem to find the right replacement part for that one.. MTX.com has yet to call me back to help me out.. Also the out put " transistors " seen to be at a very low resistance level .364 on all for of them... They look like mosfets but with 2 legs not three . The only part numbers on the transisters i seen were U1540 and cq412 i have tried all major retail stores " digikey " mouse " etc.. but yet nothing cam close to what im looking for.. Now the good amp that does power on but has a very krazy output signal seems like the subs move but no bass... I did test the " output transistors and they tested in resistance .900 .450 .450 .900 Now im thinking that the .900 is the good ones a the .450 is the bad ones. Since the Bad amp had a lower resistance level based on that alone. Does any one know of a direct replacement part for these amps ? the mtx 1501d is the same board as the mtx 81000d board... Any help will be helped. Thank you Long Live The AMP GODS ! [/QUOTE]

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