This amp uses 2 IR4427’s
Pic 1 and 2 show the drive on pins 5,7 of 1 4427
Pic 3 and 4 show the drive on pins 5,7 of the other 4427 where I get the bad drive
Pic 1 and 2 show the drive on pins 5,7 of 1 4427
Pic 3 and 4 show the drive on pins 5,7 of the other 4427 where I get the bad drive
Attachments
Ok I figured this amp out finally on to the next one now .
The problem with the amp is when the power supply fets blew it took the driver ic’s with it . Also there are 2 4.7 ohm resistors that connect to pin 6 of the driver ic’s and they open when the power supply blows . It also takes out Q226
Hope this helps others
The problem with the amp is when the power supply fets blew it took the driver ic’s with it . Also there are 2 4.7 ohm resistors that connect to pin 6 of the driver ic’s and they open when the power supply blows . It also takes out Q226
Hope this helps others
Back to this amp .
The amp worked for awhile and the outputs blew again .
The original outputs are not available right now .
The original outputs are FDH45N50
Wondering if the FDH50N50 might work ?
The amp worked for awhile and the outputs blew again .
The original outputs are not available right now .
The original outputs are FDH45N50
Wondering if the FDH50N50 might work ?
Attachments
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