Have a cracked solder joint on the main ground lead due to physical damage (rough handling). Amp works fine other than the cracked joint. If I wiggle the terminal the amp runs and sounds fine until vibrations break the contact & the amp loses it's connection. Looking to access it better for a nice clean solder joint. Problem is I cannot remove the board. All screws are removed. Appears the fets might be glued to the chassis. I can lift up on the insulator around the fets but the fets will not move. Fets do not appear to be mechanically secured to the chassis. Looking for suggestions on how to proceed. I may be able to resolder the joint without removal but there's not a lot of room to do a nice clean job.
Rich.
Rich.
If it has silicone insulators, the transistors are stuck but not glued. Sometimes, you can lift the board gently and they will break loose after a few seconds.
Thanks PB
Tried lifting gently & no go. Afraid to cause irreversible damage by prying too hard. I may try applying some heat to the area from the backside of the chassis.
Tried lifting gently & no go. Afraid to cause irreversible damage by prying too hard. I may try applying some heat to the area from the backside of the chassis.
You can tap the transistors from the side to break them loose. Do this very carefully. It should only require a light tap.
Thanks for that advice PB. Worked like a charm. Got it apart and was able to get a good solder joint applied. It's all back together, installed in vehicle & running fine again.
Life is good.
Rich.
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