fosgate t40001bd bad p/s

[bdgf2004]

between mouser, onsemi & future elect i think i got all my parts ordered.

[bdgf2004]

i just picked up some Dow corning 340 also.

[bdgf2004]

as of now i have:
40-IRFP064N
25-IRFP260N
25-MMBTA56
25-MMBTA06
25-ES2D
25-MMBT5087L
100-10R0

still waiting for the PZTA06 & PZTA56 onsemi subs.
is there anything i could do with what i got while i'm waiting?

[Perry Babin]

You could begin replacing components. While you have the defective output transistors out of the circuit, you should be able to check the PZTA transistors to see if they're defective. They may have survived.

[bdgf2004]

so should i do it like this t30001bd schematics? or do i pull them all out ay once?

[Perry Babin]

I leave enough on each MEHSA insulator to keep the insulator in place. If you take too many off, it's sometimes difficult to get the insulator to line up with the holes in the sink when you reassemble it.

[bdgf2004]

i'm having trouble soldering the drain (pin#2) on the irfpo64n's. i have a fairly good soldering iron it's a hako 936 soldering station (900*f). any suggestions?

[Perry Babin]

Try a wider, more massive tip. It will decrease the thermal resistance and get more heat to the board.

[bdgf2004]

ok thanks. ill have to shop for some more tips.

[bdgf2004]

well, i got all my parts now but i still can't solder. i'll stop by a harbor freight tomorrow and pick up a cheap butane torch with a soldering tip.