The power supply of this amp is not working properly. the power supply mosfets (IRF3710) are reading as fallow, one transistor reads 47 ohms from gate to ground for one shoulder and the transistor right next to it reads 310k ohms from gate to ground for the other shoulder. is the 47 ohms reading OK,
or the drive circuit may have a short?
or the drive circuit may have a short?
R871 is OK. I follow the PWM signals from the UC3525 and they go to two yellow transformers then to 8 diodes (d812 through d19), some times there is signal at the output of the yellow transformers, and even at the gates of the power supply, but it goes ON and OFF every 2 seconds. can I pull out the diodes without damaging the power mosfets?
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- General Interest
- Car Audio
- jl1000/1