Sundown SA 3000 D

[S Merlington]

Im wondering if anyone has a schematic for this amp ?

If not Im wondering if anyone has high res pics of the circuit board behing the audio driverboard ??

I got this amp and someone has robbed it of alot of parts and im trying to put it back together..


Any help would greatly be appericated..

 

[brandes.cm]

You won't find a schematic, they won't release to the general public.

Maybe DB-R can help, official repair center for that reseller.

 

[Perry Babin]

Post a photo showing the locations for the missing parts.

 

[S Merlington]

heres a pic of the board where the parts are missing..

 

[Perry Babin]

Post a list of the parts you need.

 

[brandes.cm]

Your missing the 7815, 7915 and possibly a 7805 up top. Do you have the driver card?

 

[S Merlington]

I have the audio driverboard which needs to be rebuilt ..

L9,L11, are missing but i know thoose are the inductors..

U1,U4,U6 are missing which are the regulators But not sure which regulators go in thoose locations ?


U8 and U9 are the positive and negative 5 volt regulators (7805 7905)

 

[Perry Babin]

U4 = 7815
U6 = 7915
U1 = 78T12

L9/11 47uH

 

[S Merlington]

I cant say thank you enough For the info I greatly appericate it..


Next question i have is The Rectifiers are the FMU32U I have 4 of them here but the legs on them are a lil short ..

Since i cant seem to find replacements for thoose . Wondering if i can extend the legs a lil bit on the ones i have and still make the amp reliable ?

 

[Perry Babin]

You can extend them if it's absolutely necessary. db-R.com generally has them for sale but the site indicates that there is currently no stock. The site isn't always 100% up to date so you may want to contact them to see if any are available.

If you extend them, don't just solder to the tip of the leg. Solder the wire along the entire remaining length of the leg then leave enough to solder into the board.

 

[S Merlington]

Ok i have a few audio driverboards sitting here that have to be rebuilt...

Wondering if anyone knows what audio driverboard belongs in this amp the board with 2 driver IC's or the one with 4 driver IC's ?

 

[Perry Babin]

2 driver ICs. The one with 4 ICs has a lot more pins and won't fit in the main board.

 

[S Merlington]

Anyone know what rectifiers belong in this amp ??

I thought it was the FMU32U that belongs in this but not to sure now..

Im thinking i saw one awhile back with FMG33R and FMG33S in one but not 100% sure..


Anyone know ?

 

[Perry Babin]

The 32U. The transformer winding connects to the center leg instead of the outer legs as it would with a center-tapped rectifier.

 

[S Merlington]

Couldnt find a couple of the orginal part numbers ..

So i called digikey and the tech told me some sub part numbers wondering if theese will work ??


Orginal part : KA78T12

heres the orginal parts datasheet

KA78T12 pdf, KA78T12 description, KA78T12 datasheets, KA78T12 view ::: ALLDATASHEET :::

Heres the part digikey said would work its the MIC29300

http://www.micrel.com/_PDF/mic29150.pdf


The the KTD1304 transistor for the driverboard

Orginal parts datasheet

KTD1304 pdf, KTD1304 description, KTD1304 datasheets, KTD1304 view ::: ALLDATASHEET :::

Digikey's part he said would work

2SD2704K pdf, 2SD2704K description, 2SD2704K datasheets, 2SD2704K view ::: ALLDATASHEET :::

Just wondering if anyone knows if theese parts he suggested will work in place of the orginals..

Any help would greatly be appericated

 

[Perry Babin]

It appears that they will work. When you order the regulator, order the 29300-12BT.

 

[S Merlington]

Ok got all the new parts in this amp..

My question is: Does anyone know what way the audio driverboard faces in this amp Does it face towards the power supply section or away from it??

 

[S Merlington]

Nevermind Got it up and running...

Now i just need to find some clamps that will work to hold down the fets and outputs and some sil pad