Hi there im currently busy on a Targa tg30 amp the amp had aloose inductor and rubbed the coating off and shorted. The amp blew the whole power supply i replaced the drive transistors for power supply (bd139& bd140) and replaced power supply fets IRFP064N replaced broken inductor. Now amp powers up then a few seconds then draws a lot of current the driver board is DLM4000A
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It looks like you have multiple damaged vias on that driver board header.
Did you check for shorted outputs?
Did you check for shorted outputs?
I'm referring to the bits of copper on the connector that was soldered into the main board.
If no outputs failed, it's unlikely that the driver board was damaged.
If no outputs failed, it's unlikely that the driver board was damaged.
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Not the largest IC, as far as I know... well, not from a reputable source.
Why would the drivers fail if the outputs didn't fail?
Why would the drivers fail if the outputs didn't fail?
Hi Perry im testing amp now without driver board i don't get +12v and + 15v where do i put negative lead to test that voltages
I don't know this amp specifically. Is it like the following amp:
http://www.bcae1.com/temp/soundstreamxxx6500.zip
http://www.bcae1.com/temp/soundstreamxxx6500.zip
Ok I got the +12v +15 i put back driver board amp still turning on few sec then draws heavy current i can't see anything getting hot on output side only power supply fets heat up after a few seconds of current draw
Perry u removed the drivers on each side of the output gets the amp turns on no current draw no drive signal from driver board