ATAS 120 Disassembly instructions?

Have you looked at the FT-100/D FAQ (see below)?

Post by n2tu
My ATAS 120 is acting up....it refuses to tune until I gently (yes,
gently) tap the base of the antenna. When I do, the antenna
will tune fine...until I hit a bump or the antenna gets jarred....
I've changed the coax and mount and have an excellent chassis
ground., so I'm fairly sure that the problem is internal to
the ATAS and not the mount or grounding. I did a search on
the web and did not find anything...so I would appreciate
some help....
Does anyone have the disassembly instructions for the
antenna...or has successfully disassembled it?....
Thanks!
Lou N2TU
FAQ on WWW: http://www.k0lee.com/ft100faq.html
We are all a part of this Lets make it as good as possible.
Yahoo! Groups Links

n2tu

2007-03-29 19:24:52 UTC

Yes....

Only shows the ATAS100....

Thanks...

Lou N2TU

Post by Dale Martin
Have you looked at the FT-100/D FAQ (see below)?

Danny

2007-03-30 00:07:45 UTC

Lou,

Funny you should ask today....

I had the exact same problem..Antenna would tune then not...etc.

The base of the antenna is a MATCHING SECTION with a coil and several
capacitors under the plastic cover... Ready for the replacement
price: $259.00....GULP

Anyway....if you carefully remove the plastic around the bottom pin
(you can see it but can't get to it without plastic removal) then
pull the pin out... the bottom will unscrew and you can then get to
the coil by sliding down the plastic cover.. It will break the top
piece of plastic as well, but easy to reseal.. The coil will have a
bad solder joint on either the top or bottom of the form.

Did mine and it works great again..

73,
Danny-N5OMG

Post by n2tu
Yes....
Only shows the ATAS100....
Thanks...
Lou N2TU

Post by Dale Martin
Have you looked at the FT-100/D FAQ (see below)?

Post by n2tu
My ATAS 120 is acting up....it refuses to tune until I gently

(yes,

Post by n2tu
gently) tap the base of the antenna. When I do, the antenna
will tune fine...until I hit a bump or the antenna gets

jarred....

Post by n2tu
I've changed the coax and mount and have an excellent chassis
ground., so I'm fairly sure that the problem is internal to
the ATAS and not the mount or grounding. I did a search on
the web and did not find anything...so I would appreciate
some help....
Does anyone have the disassembly instructions for the
antenna...or has successfully disassembled it?....
Thanks!
Lou N2TU
FAQ on WWW: http://www.k0lee.com/ft100faq.html
We are all a part of this Lets make it as good as possible.
Yahoo! Groups Links

Eddy Avila

2007-03-30 22:34:58 UTC

Mine too....and I've really gone the extra mile for a good ground to the truck frame!!

So.....before I throw this thing in the trash, I'm try the disassemble trick. Yaesu should be embarrassed with this product!!

Jist me two cents..../73

Danny <dcristina-***@public.gmane.org> wrote: Lou,

Funny you should ask today....

I had the exact same problem..Antenna would tune then not...etc.

The base of the antenna is a MATCHING SECTION with a coil and several
capacitors under the plastic cover... Ready for the replacement
price: $259.00....GULP

Anyway....if you carefully remove the plastic around the bottom pin
(you can see it but can't get to it without plastic removal) then
pull the pin out... the bottom will unscrew and you can then get to
the coil by sliding down the plastic cover.. It will break the top
piece of plastic as well, but easy to reseal.. The coil will have a
bad solder joint on either the top or bottom of the form.

Did mine and it works great again..

73,
Danny-N5OMG

Post by n2tu
Yes....
Only shows the ATAS100....
Thanks...
Lou N2TU

Post by Dale Martin
Have you looked at the FT-100/D FAQ (see below)?

Post by n2tu
My ATAS 120 is acting up....it refuses to tune until I gently

(yes,

Post by n2tu
gently) tap the base of the antenna. When I do, the antenna
will tune fine...until I hit a bump or the antenna gets

jarred....

---------------------------------
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n2tu

2007-03-31 10:30:42 UTC

Let me know how you make out!.....

Isn't there a way of pushing out the pins without removing the
plastic? Has anyone try a center punch?

73

Lou N2TU

Post by Eddy Avila
Mine too....and I've really gone the extra mile for a good ground to the truck frame!!
So.....before I throw this thing in the trash, I'm try the

disassemble trick. Yaesu should be embarrassed with this product!!

Post by Eddy Avila
Jist me two cents..../73
Funny you should ask today....
I had the exact same problem..Antenna would tune then not...etc.
The base of the antenna is a MATCHING SECTION with a coil and

several

Post by Eddy Avila
capacitors under the plastic cover... Ready for the replacement
price: $259.00....GULP
Anyway....if you carefully remove the plastic around the bottom pin
(you can see it but can't get to it without plastic removal) then
pull the pin out... the bottom will unscrew and you can then get to
the coil by sliding down the plastic cover.. It will break the top
piece of plastic as well, but easy to reseal.. The coil will have a
bad solder joint on either the top or bottom of the form.
Did mine and it works great again..
73,
Danny-N5OMG

Post by n2tu
Yes....
Only shows the ATAS100....
Thanks...
Lou N2TU

Post by Dale Martin
Have you looked at the FT-100/D FAQ (see below)?

Post by n2tu
My ATAS 120 is acting up....it refuses to tune until I

gently

Post by Eddy Avila

Post by n2tu
(yes,

Post by n2tu
gently) tap the base of the antenna. When I do, the antenna
will tune fine...until I hit a bump or the antenna gets

jarred....

Post by n2tu
I've changed the coax and mount and have an excellent

chassis

Post by Eddy Avila

Post by n2tu
ground., so I'm fairly sure that the problem is internal to
the ATAS and not the mount or grounding. I did a search on
the web and did not find anything...so I would appreciate
some help....
Does anyone have the disassembly instructions for the
antenna...or has successfully disassembled it?....
Thanks!
Lou N2TU
FAQ on WWW: http://www.k0lee.com/ft100faq.html
We are all a part of this Lets make it as good as possible.
Yahoo! Groups Links

---------------------------------
Expecting? Get great news right away with email Auto-Check.
Try the Yahoo! Mail Beta.
[Non-text portions of this message have been removed]

Dale Martin

2007-03-31 15:53:29 UTC

Has anyone asked Yaesu if they can provide a procedure to do what you want
to do?

Kg5u

Danny

2007-03-31 19:48:17 UTC

I spoke with the tech support group. They say the matching network
is 'non-repairable'. But explained to me how to take it apart and
repair it. The two pins do not go completely through...they just pin
the threads of the upper and bottom sections to the coil form.

Danny-N5OMG

Post by Dale Martin
Has anyone asked Yaesu if they can provide a procedure to do what you want
to do?
Kg5u

Larry Kemper

2007-03-31 22:08:52 UTC

I have used the Dremel tool to remove a little of the plastic around the
pins. I then notched the pin a little with the cutter wheel on the Dremel.
I can then use miniature pliers to get hold of the pin and remove it. On
all the ones at the hamfest that I have bought the wire is broken from the
solder. I re-solder with Silver solder for strength and make sure it is
not pulled tight so movement will break it again. Most often it is barely
soldered in the first place. Reassemble and put in the pins.

Good Luck

Larry

WA0VUS

Iowa

_____

From: FT100-***@public.gmane.org [mailto:FT100-***@public.gmane.org] On Behalf Of
Danny
Sent: Saturday, March 31, 2007 1:48 PM
To: FT100-***@public.gmane.org
Subject: [FT100] Re: ATAS 120 Disassembly instructions?

I spoke with the tech support group. They say the matching network
is 'non-repairable'. But explained to me how to take it apart and
repair it. The two pins do not go completely through...they just pin
the threads of the upper and bottom sections to the coil form.

Danny-N5OMG

Post by Dale Martin
Has anyone asked Yaesu if they can provide a procedure to do what you want
to do?
Kg5u

[Non-text portions of this message have been removed]

n2tu

2007-04-01 18:50:42 UTC

Danny,

I *finally* got the pin out!....

I tried just about everything including heat...and it wouldn't
budge....I was just about to give up and looked on my tool bench and
saw a pair of heavy duty side cutters....I figured, what the heck...

Using the base as a wedge, I gripped the pin and got it to come
out....

The coil looked good...the solder joints looked OK...but I heated
them up anyway...put a bit more on them...and reassembled the base...

It tuned but the true test will be tomorrow when I go for a ride and
hit a few bumps...

Quite honestly, the coil connections looked good...I'm beginning to
think the center pin connection...the one that goes into the coil
form and somehow makes connection to the center pin is the
culprit...but there is no solder connection at the tip of the
connector...so I guessing it is a crimp...

If that is the case, I'm at a loss as to what I can do...but...lets'
see what tomorrow brings!...

73...and thanks for taking the time to help...

Lou N2TU

Post by Danny
I spoke with the tech support group. They say the matching network
is 'non-repairable'. But explained to me how to take it apart and
repair it. The two pins do not go completely through...they just pin
the threads of the upper and bottom sections to the coil form.
Danny-N5OMG

Post by Dale Martin
Has anyone asked Yaesu if they can provide a procedure to do what

you

Post by Danny
want

Post by Dale Martin
to do?
Kg5u

Larry Kemper

2007-04-02 04:20:17 UTC

I have found that a lot of times the center pin has spread out and is not
making good contact with connector. I put some brass shim stock around the
outside of the pin to keep it from getting loose. Maybe the antenna or coax
is moving enough to spread it out.

Good Luck

Larry WA0VUS

Iowa

_____

From: FT100-***@public.gmane.org [mailto:FT100-***@public.gmane.org] On Behalf Of n2tu
Sent: Sunday, April 01, 2007 1:51 PM
To: FT100-***@public.gmane.org
Subject: [FT100] Re: ATAS 120 Disassembly instructions?

Danny,

I *finally* got the pin out!....

I tried just about everything including heat...and it wouldn't
budge....I was just about to give up and looked on my tool bench and
saw a pair of heavy duty side cutters....I figured, what the heck...

Using the base as a wedge, I gripped the pin and got it to come
out....

The coil looked good...the solder joints looked OK...but I heated
them up anyway...put a bit more on them...and reassembled the base...

It tuned but the true test will be tomorrow when I go for a ride and
hit a few bumps...

Quite honestly, the coil connections looked good...I'm beginning to
think the center pin connection...the one that goes into the coil
form and somehow makes connection to the center pin is the
culprit...but there is no solder connection at the tip of the
connector...so I guessing it is a crimp...

If that is the case, I'm at a loss as to what I can do...but...lets'
see what tomorrow brings!...

73...and thanks for taking the time to help...

Lou N2TU

Post by Larry Kemper
I spoke with the tech support group. They say the matching network
is 'non-repairable'. But explained to me how to take it apart and
repair it. The two pins do not go completely through...they just

Post by Larry Kemper
the threads of the upper and bottom sections to the coil form.
Danny-N5OMG

Post by Dale Martin
Has anyone asked Yaesu if they can provide a procedure to do what

you

Post by Larry Kemper
want

Post by Dale Martin
to do?
Kg5u

[Non-text portions of this message have been removed]

Bryan Anderson

2007-04-03 00:34:46 UTC