This amp uses HIP4082 and IRFZ44N on the audio side, and then regular IRFZ44 on the PS. All need to be replaced.
I have IRFZ44Z in stock (Lots of them). RDS on is different between the ~3. Would the Z be suitable in the audio section? Or I can go with something like IRF3710 (Non-Z) in the output section.
Hope I can fix this one. Any service manuals/schematics available?
I have IRFZ44Z in stock (Lots of them). RDS on is different between the ~3. Would the Z be suitable in the audio section? Or I can go with something like IRF3710 (Non-Z) in the output section.
Hope I can fix this one. Any service manuals/schematics available?
Im really not sure why IRFZ44 is anywhere even in this amp. The PS works fine with IRF3205.
The output section, I dont think IRFZ44 should have EVEN been in here. The amp has +80v rail. I'm going to try IRF3710 instead.
This amp troubleshoots almost exactly like a JL500/1. At least thus far.
The output section, I dont think IRFZ44 should have EVEN been in here. The amp has +80v rail. I'm going to try IRF3710 instead.
This amp troubleshoots almost exactly like a JL500/1. At least thus far.
Great amp. I have one that was sent to the original designer in 2000-2001 when he was at JL Audio, as a favor for a friend he modified it for me, but for the life of me I don't know what the mods were besides greater power and stability. It really brought some great bass to my 3 JL 12W6's. Sadly years later the amp started to produce a repeating "whoop" noise and it's sat on a shelf for nearly 2 decades now.