Evancox 27 Posted January 30, 2024 Posted January 30, 2024 Hello everybody, my name is Evan and I’m new here. I own an old Carver M400 in the champagne color that I’ve been trying to get working again. Hopefully I’ll be able to fix it with some help from you guys. 8 3
Receiver2000 4,014 Posted January 30, 2024 Posted January 30, 2024 Welcome Evan!!!! There is plenty of knowledge around these parts.
wrf 4,934 Posted January 30, 2024 Posted January 30, 2024 @Evancox Welcome to The Carver Site. We've got lots of info on the M-400. Check out the service manual and it will provide a great overview of how the amp works along with trouble shooting tips. In case you haven't found it yet, the manuals are along the top of the page under "Manuals and Specsheets". The M-400 is one of the oldest Carver amps. Give us an overview of your background and what kind of test equipment you have. The M-400 is a bit of a jigsaw puzzle and not a great way to start your education, but it's been done. Give us a quick description of its condition and you will likely get tons of help. 2
BobTFM35 2,767 Posted January 30, 2024 Posted January 30, 2024 Welcome to the site. Looking forward to hearing more about your equipment and seeing pictures.
Community Admin AndrewJohn 10,451 Posted January 30, 2024 Community Admin Posted January 30, 2024 Welcome, @Evancox. Glad you found us. A wealth of information here on the site. Check out the manuals, and service manuals on your 400. 1
Evancox 27 Posted January 30, 2024 Author Posted January 30, 2024 (edited) Double post, please delete Edited January 30, 2024 by Evancox
Evancox 27 Posted January 30, 2024 Author Posted January 30, 2024 (edited) 3 hours ago, wrf said: @Evancox Welcome to The Carver Site. We've got lots of info on the M-400. Check out the service manual and it will provide a great overview of how the amp works along with trouble shooting tips. In case you haven't found it yet, the manuals are along the top of the page under "Manuals and Specsheets". The M-400 is one of the oldest Carver amps. Give us an overview of your background and what kind of test equipment you have. The M-400 is a bit of a jigsaw puzzle and not a great way to start your education, but it's been done. Give us a quick description of its condition and you will likely get tons of help. I own an oscilloscope, multimeter and variac. I have replaced all the electrolytic capacitors on the amp boards and power supply, I have replaced the diac, triac and Optocoupler, also replaced the -12v zener diode. The issue I’m having is getting the triac to fire like in the service manual. My amp has the first version of the power supply. Edited January 30, 2024 by Evancox 1
Kurt 2,899 Posted January 30, 2024 Posted January 30, 2024 Welcome to the Carver Site! Lots of great help, here.
2chGearBuff 428 Posted February 3, 2024 Posted February 3, 2024 Welcome aboard. This is the spot to get help and advice. The technolgical abilities of the members on this board go above and beyond anyones expectations! 1
Dennis47 973 Posted February 10, 2024 Posted February 10, 2024 WELCOME @Evancox! Good luck getting that M-400 singing again.
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