New 2 Me Used AT6666 is this Correct?

[RoadRanger]

So I finally got a AT6666, other then the fan that has been added. I don't like the fact it's always on.
But not sure if other things have been done?
Also a few other things, wondering, I have a road devil mic that I used for a 2950, can I just plug it in & off I go or is the wiring different?
The Echo shows on the screen but when I turn it off in the menu it stays on?
Think I will do a reset to see if that stops it.

 

[Low_Boy]

I never saw one with such sloppy heat sink compound. Also the road devil will sound bad. I tried every kind of mic imagineable on that radio and the only ones that sounded good were stock, 636L and 575M6.

 

[Eldorado828]

Man, what in the world is that soldered to the mosfet shield plate?

I have to agree about the slop all over that regulator transistor.

Someone has done some modding on that dude.

 

[Rwb]

must been my ex wifes radio,sloppy workmanship inside,same as her house keeping.
hope you get it sorted out soon n get to using it to radio it up

 

[Low_Boy]

Man, what in the world is that solder to the mosfet shield plate too?

I have to agree about the slop all over that regulator transistor.

Someone has done some modding on that dude.

I never blew up the picture. Never saw the solder all over the final covers.

 

[BigLou]

Some one has definitely been inside your radio. I hope it works good for you , I use the DELTA M2 mic on mine and everyone likes the way it sounds I use the radio as a base . Yours is the 1st to have a fan that I heard of , most dont get that hot . They do get hot but not enough for a fan .

 

[AxlMyk]

Those pics make me wonder what the traces on the other side of the board look like. Were parts replaced?
Take the fan off, and use Q-tips to wipe all the heat grease off it.

 

[L2]

I've been using a 6666 for some months now and can say the stock mic is excellent.

I tried an Astatic 575 but everyone said the stock mic sounded the clearest.

 

[S&W357]

Same here L2. Stock mic here is also my preference.

 

[RoadRanger]

Thanks for the input everyone.
I have had it hooked up & works as it should.
AxlMyk I will be cleaning it up for sure.
I will look on the other side when I get some time, show pic's if something is ???
I like the idea of the up & down buttons so the stock mic is my chose for now.
The fan will be coming off BigLou as I didn't see the the need for it myself.

 

[RoadRanger]

I cleaned up all the compound, looks way better now.
The upgrade's are from what I can see are,
Palomar Max-Mod 1721,
4700uf 25v x2,
The other parts read like this
F E HO KA780? not sure of the last number.
UTC TDA2003 IC 82TLTQ

Here is the other side.

The red wire was running the fan that is now gone.

 

[AxlMyk]

It looks like extensive soldering on the left bottom edge. Take a soft brass brush, carefully, to clean the flux off.
What circuits are in that area?

 

[Allen B]

What is soldered to the shield over the mosfets? That has me curious.

 

[Eldorado828]

What is soldered to the shield over the mosfets? That has me curious.

That's a bridge that comes that way from the factory. You'll find that same bridge on the 447hpc2 or others made by quixiang

 

[ruckussay45]

I've been using a 6666 for some months now and can say the stock mic is excellent.

I tried an Astatic 575 but everyone said the stock mic sounded the clearest.

Superstar 452 will blow any other mic away even with the echo turned off best ever 30 bucks youll spend youll have a wheelbarrow full of flowers to deal with on radio checks amen