MP853 is a metal grounding earth spring that was added to the DDS board in 2006.? The picture you attached shows that the spring finger that is about 0.75" long had been broken off.? ?If you look in this group's Files section for?/g/ic7000/files/7K%20GROUNDING%20FINGERS%20.doc?there is a picture of what it should look like.

I could not find an icom part # for that spring.? It is different than the others used in the unit.? I doubt that it is critical, given the large ground plane in that area that is screwed to the metal chassis.

Steve, W3AHL

I took a look in the service manual I got years ago and the only thing I can find is that there's a couple of pages of things that start with MP - in lists called Mechanical Parts, but this manual doesn't have an 853.? The highest it goes is MP851.

If you'll notice, there's no copper leading to or from the part in the picture, which implies it's not connected to anything electrically, so that goes with being a mechanical part.? More details, like what assembly that is or the parts around it to search for might help, but that's just guessing.?

The manual I have is dated 2005, so perhaps MP853 was added after this.?

That's not much, but it's the best I can do.


73,
Bob
--
W4ATM - 35 Miles south of the Kennedy Space Center
Retired RF Design Engineer
Now able to play with all the hobbies I never had enough time for

Could someone shed some light What is MP853 it is shown only in thesevice manual bud no indication what it does or its use?

From: "Michael Parker" <miketparker@...>

using the same paddle with a Icom 7300, I will often get an R.?

Possibilities include paddle "bounce" where the dah side is getting "vibrated" from the dit actuation, or maybe RFI into the keyer causing it to go wonky.

Mark K5LXP
Albuquerque, NM

Hello Group,

?Well down the rabbit hole I go to trying to fix the infamous blown driver board and I started to look for the? PD55015 and it seems everyone is out of stock. Does anyone have an extra transistor they would like to sell or do you know of a place that might have them in stock and for a reasonable price?

Thanks!
73's
Mike WA3O

开云体育

Hello group,

? I was driving down the road listening to 40 meters? when I seen and smelled smoke. When I got home I pulled the rig body that was mounted under the passengers seat and noticed the smell was coming from the rig body.

? ?I suspected the dreaded driver board went. Is this worth fixing? I do have the technical ability to do surface mount repair. What will this cost? Will it happen again?

? ?If I choose not to fix it, what is the radio worth with separation kit?

Thanks1
73's
Mike WA3O

Hello all - just inherited a well-loved IC-7000 and I'm working my way through it.

Long story short - I noticed there was no RF output on SSB, but there was CW and while tuning. After some troubleshooting I determined it was likely a bad hand mic. Then I realized there is an auxiliary mic port on the underside of the radio faceplate. When connecting the mic there, it works.

Has anyone had the rear mic port crap out on them? Is this a common issue? Or is there a setting somewhere I'm missing?

Mine came? today..

There are a few different mods to the radio to improve the cooling.

--
Allison

Just bought for mine.? In black.? ?I happen to like PortableZero and? they are a
good business.

I've installed them on my Ft817 and IC7300 as it makes handling them much easier?
than a simple strap and they do protect the front and rear nicely.? The tilt stand built in?
is really handy for the Ft817.


Allison

I have those side rails on my IC7300, FT817 and ordered for my IC7000.

Not cheap but a good product and really makes handling the radio easier.

It runs warm. Doing the fan mods, there are several, does help greatly.

If in a bag/case/box? provide some way to get air to it.??


Allison

Check out?
Note that the front of the rails are splayed outward as you desire.? I am not affiliated with Portable Zero, but I do have a set of these rails on my IC-7000.

Jim WD5BKO

There are 3D printable rails at?.? It's unclear if this addresses the knob issue but is a good starting place to modify them if necessary.

Scott N7SS