hi everyone
comes to me a jl audio hd 600/4 playing only 3 channels. someone previosly test it and take apart the output mosfet on the bad channel.
if i install new mosfet the red/green protect lights on and dont work any channel. try with the good mosfets from another channel same thing.
irs2011 driver replaced. i have the same voltages in the bad channel like one working channel. if i play 60hz tone i see it on gates of bad channel and the signal is equal on another good channel.
i have 5 vdc on the bad channel all time. the amp has the same resistance from output to gnd on all channels. good output inductors. no bad traces.
if i install the mosfets the red/green protect lights on but if i take apart the 0.47uf blue cap the amps turns green and plays good 3 channels. the bad chanel has 5 vdc, plays but the speaker cone go all the way.
Anyone with a similar problem?
double checked caps, resistors and diodes on the irs2011 area
comes to me a jl audio hd 600/4 playing only 3 channels. someone previosly test it and take apart the output mosfet on the bad channel.
if i install new mosfet the red/green protect lights on and dont work any channel. try with the good mosfets from another channel same thing.
irs2011 driver replaced. i have the same voltages in the bad channel like one working channel. if i play 60hz tone i see it on gates of bad channel and the signal is equal on another good channel.
i have 5 vdc on the bad channel all time. the amp has the same resistance from output to gnd on all channels. good output inductors. no bad traces.
if i install the mosfets the red/green protect lights on but if i take apart the 0.47uf blue cap the amps turns green and plays good 3 channels. the bad chanel has 5 vdc, plays but the speaker cone go all the way.
Anyone with a similar problem?
double checked caps, resistors and diodes on the irs2011 area
What's the resistance from the high-side source leg to the low-side drain leg?
High-side drain to positive rail?
High-side drain to positive rail?
high side source leg to low side drain 0 ohm and then straight to the inductor and then to output socket 0ohm.
high side drain 0 ohm to positive rail
high side drain 0 ohm to positive rail
If you touch a load across that channel's output, does that cause an increase in current draw or does it simply pull the 5v to 0v?
with all components in place the amp is in protect. only the bad channel makes noise on a speaker, like the ps turns on and inmediatly turns off. a click noise every 2 seconds.
If you touch a load across that channel's output, does that cause an increase in current draw or does it simply pull the 5v (now 21v) to 0v?