Hi Perry when testing on driver board on the ir2113 if what do i check
There is signal going from pre amp to driver board but nothing on high out low out
There is signal going from pre amp to driver board but nothing on high out low out
Do you have a scope?
Did you check the driver transistors that you pulled for open junctions as well as shorts?
Did you check the driver transistors that you pulled for open junctions as well as shorts?
Do you see any drive pulses on any terminals of U3 or the inputs of U4?
Check the transistors (shorts and opens)
Check the transistors (shorts and opens)
This amp is a M A audio 5k(I stand to be corrected but I think they have closed down). If you take the black glue out on the pre amp board you will see the name of the amp. I have 2 like these in for repairs and they both have a problem with the power supply. still bust with them but if I do come right I will let you know.
Hi guys i removed ir2133s ic and put back driver board then i play a 100hz sine wave into amp I tested on the lo in and hi in of the ir2133 there appears a little square wave is the ir2113 blown?
Hi guys fitted the new ir2113 ic but amp still cuts into protection so i removed output fets and turned on with no protection i get drive signal on lo side gate resistors
I then put 2 output fets on each side then amp plays but not clear what should i get on hi side gates?
Hi there i tested amp without output fets running 50hz sine wave to rca I get square wave at lo in on ir2113 as well as hi in but i only get lo out square wave but not on hi out