I just got back to working on this amp Perry. The amp was brought to me with few blown PS Fets, resistors, etc... I have repaired the damage to the amp. I also found the grounds legs on the RCA connectors where broken and fixed those as well. Amp is now functioning as it should.
I disconnected the capacitor that I previously asked you about and it doesn't seem to effect the function of the amp either way. Do you have an idea of what problem whomever put it there may have been trying to correct with it?
I also found what I believe is another modification (see attached photos). It has been a while since I've worked on a 250r but if memory serves me correctly I believe the resistor that is place on the legs of the L7905CV is not supposed to be there. I disconnected it as well and could not see where it made any change to the function of the amp. Any thoughts on what problem it was intended to solve?
I disconnected the capacitor that I previously asked you about and it doesn't seem to effect the function of the amp either way. Do you have an idea of what problem whomever put it there may have been trying to correct with it?
I also found what I believe is another modification (see attached photos). It has been a while since I've worked on a 250r but if memory serves me correctly I believe the resistor that is place on the legs of the L7905CV is not supposed to be there. I disconnected it as well and could not see where it made any change to the function of the amp. Any thoughts on what problem it was intended to solve?
Attachments
I've been sitting here racking my brain over it and couldn't come up with a reason why either so I thought I would ask you. Thank you.
Need a bit of help pls
hello all,
here is my problem with my old hcca 250r.
The 2 rectifiers on the under side of board where pulling lot s of juice, once they where off voltage was ok. I am wondering the guy who fixed or tried to fix it maybe he did not put them back at the right place. I see they are 2 different rectefiers, here are some pics.
I would love to know wich one goes where.
Thanks guys 🙂
hello all,
here is my problem with my old hcca 250r.
The 2 rectifiers on the under side of board where pulling lot s of juice, once they where off voltage was ok. I am wondering the guy who fixed or tried to fix it maybe he did not put them back at the right place. I see they are 2 different rectefiers, here are some pics.
I would love to know wich one goes where.
Thanks guys 🙂
Please don't post in a repair thread that was started by someone else unless you are trying to help them.
Start a new thread if you need help with a repair of your own.
http://www.bcae1.com/temp/newthreaddiy01.png
Start a new thread if you need help with a repair of your own.
http://www.bcae1.com/temp/newthreaddiy01.png