This amp has a few issues with it..
The left rear channel plays clean audio
The right rear channel plays clean audio but is very low output
Both these channels play but the outputs and mesha board get to hot to touch after a min ..
Any ideas on what to check ?
The front left channel plays clean audio
Right front channel has no output
Since both right channels have no audio or low audio im assuming this may be a dirty switch
Wondering why he rear channels all the outputs and mesha board get vry hot after a min
The left rear channel plays clean audio
The right rear channel plays clean audio but is very low output
Both these channels play but the outputs and mesha board get to hot to touch after a min ..
Any ideas on what to check ?
The front left channel plays clean audio
Right front channel has no output
Since both right channels have no audio or low audio im assuming this may be a dirty switch
Wondering why he rear channels all the outputs and mesha board get vry hot after a min
Are you telling me that if you power it up cold that the entire board heats up uniformly along it's entire length with no centralized hot spot?
After replacing some transistors and resistors now I can tell where the hot spot is coming from ..
The mesha board starts getting hot under Q310 -IRF540
The mesha board starts getting hot under Q310 -IRF540
Do you find anything other than infinite resistance between the back of the MEHSA strip and any of the metal tabs on any component on the strip?
Meter stays at OL ..
I've replaced the bias transistors on that channel also replaced Q316,315,317,312,314..
Problem is still there
I've replaced the bias transistors on that channel also replaced Q316,315,317,312,314..
Problem is still there
Measure the DC voltage across the two 0.1 ohm source resistors in that channel. Post the voltage for each one.
Shorting the bias transistor emitter to collector legs 1 to 3
The outputs still heat up no change
The outputs still heat up no change
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