need help repairing amplifier/welding** PICS

[mtlhead 10+ year member]

just for you mtl

i wub j00 //content.invisioncic.com/y282845/emoticons/cuddle.gif.bd1b29c179c0482f8313dbd790b74c94.gif

 

[SQBubble 10+ year member]

loll, imma give it another try tomorrow and see how it turns out, hope I wont burn the whole board! ill post some updates! and what do you mean by power leads are obese? loll

 

[SuperchargedRS 10+ year member]

 

[xtremebassjunky 10+ year member]

lol

 

[mtlhead 10+ year member]

 

[mtlhead 10+ year member]

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[xtremebassjunky 10+ year member]

hehe

 

[xtremebassjunky 10+ year member]

i wub j00 //content.invisioncic.com/y282845/emoticons/cuddle.gif.bd1b29c179c0482f8313dbd790b74c94.gif

a simple thanks works //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

lol

 

[jmanpc 5,000+ posts]

loll, imma give it another try tomorrow and see how it turns out, hope I wont burn the whole board! ill post some updates! and what do you mean by power leads are obese? loll

they look fat with that solder all over em.

 

[valter 10+ year member]

To properly solder these terminals you need to to do it from the back side of board, which will require removing it. Also you will need ~100W iron for this. I highly doubt that even after successful soldering amp starts to work - there probably either power supply FET's or outputs shorted, which lead to excessive current and and damage to solder connections of power terminals.

 

[mtlhead 10+ year member]

To properly solder these terminals you need to to do it from the back side of board, which will require removing it. Also you will need ~100W iron for this. I highly doubt that even after successful soldering amp starts to work - there probably either power supply FET's or outputs shorted, which lead to excessive current and and damage to solder connections of power terminals.

100W? are you kidding me?

i wouldnt use anything higher than 35W on that kind of stuff

 

[valter 10+ year member]

100W? are you kidding me?
i wouldnt use anything higher than 35W on that kind of stuff

If you are going to use ordinary (without load-adaptive thermal stabilization) iron, then you probably would not be even able to melt a solder around terminals with 35W, tip will be loosing temperature too quickly due to thermal capacity of huge terminal, acting as a heatsink.

 

[UndercoverPunk 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

 

[mtlhead 10+ year member]

If you are going to use ordinary (without load-adaptive thermal stabilization) iron, then you probably would not be even able to melt a solder around terminals with 35W, tip will be loosing temperature too quickly due to thermal capacity of huge terminal, acting as a heatsink.

meh, i would disagree with you on it, 35W has been fine for anything like this for me

 

[Doingstuffwell 10+ year member]

looks kinda like a mini version of my first welds with a 250 amp stick welder and NO grinder //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

fail ...