Looking for help on my HFI1500D Amp. The amps turns on normal, no over heating no current gain, just fine, once i disco the remote, my power fets blow. Amp is using IRFZ44N for the power. Nothing happens to the audio. It only blows the ones from the Power Terminal side.
I have replaced the transistors from the driver module and the OP amps. ( 1D, P2D )
Any help will be appreciated.
Thanks
I have replaced the transistors from the driver module and the OP amps. ( 1D, P2D )
Any help will be appreciated.
Thanks
Here are some Pics
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
You'll have to remove the PS FETs and clean the solder pads.
Monitor the DC voltage on terminals 3 and 4 of the PS control IC carefully when the remote is removed. Set the scope to 2ms and about 1v/div. When remote is removed, does the voltage on either terminal go negative?
Monitor the DC voltage on terminals 3 and 4 of the PS control IC carefully when the remote is removed. Set the scope to 2ms and about 1v/div. When remote is removed, does the voltage on either terminal go negative?
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