help with power supply

[timwebb]

ok i im workin on a memphis 1000d that had a blown power supply i changed the gate resistors the fets and the pnp drivers on the driver card bbut it still not coming on the protection comes on now but im only getting 12v on the center leg of the fets in the power supply

 

[Perry Babin]

If this is the newer 1000D like the one you posted the photo of, please post a photo of the inside of the amp.

 

[timwebb]

im working on the driver card and it has cooked the wire traces off the board i didnt see it until i took the glue off the card it burnt the two pnp transistors. should i repace all of them?

 

[Perry Babin]

Generally, the two PNP driver transistors are the only transistors that fail on that board.

 

[timwebb]

ok i got the amp to power up but its missing parts. if any one has a better pic please post

its a memphis 1100d

 

[Perry Babin]

It appears that a film capacitor is missing. Are there stubs of the legs left in the through-holes?

 

[timwebb]

yeah the person who had it was trying to fix it they took most of the parts out.and all the output transistors are gone

 

[Perry Babin]

Does he have the parts he removed?

 

[timwebb]

yeah

 

[Perry Babin]

That will prevent having to guess about the value of the components.

 

[timwebb]

i think it use the 640 buy i know i use two types ivr been tryin to find a pic of it

 

[timwebb]

link

Memphis 16-MCD1000 (16mcd1000) - Monoblock Car Amplifier, Power Amp - Sonic Electronix

 

[Perry Babin]

That amp uses IRF640s and IRF9640s for the output transistors. See attached.

 

[timwebb]

thanks perry that helped alot

 

[Perry Babin]

Please don't post in a repair thread that was started by someone else unless you are trying to help them.

Click on the red triangle in the lower left corner of your post and ask a moderator to move your post (and any replies to it) to a new thread (my post should be deleted).

After it's moved, I'll try to help you.