[ICOM] IC-765 question

Thu Apr 23 16:33:28 EDT 2015

Translation please?  ;)

Regards
Guillermo - LU5WE.

El 23/04/15 a las 16:45, Kenneth Nilsson escibió:
> Nu får du komma på Skype snart Göran!
>
>
> Den 15-04-23 20.41, skrev "Bert Almemo" <balmemo at sympatico.ca>:
>
>> Hi Randy,
>>
>> One of my hamradio friends and I have checked out a few ESR meters and found
>> this one to be the best at a reasonable price. This meter can be used in
>> circuit, i.e. measure ESR without removing the cap. I was considering
>> building one but it's not worth the effort.
>>
>> http://www.ebay.com/itm/ESR-V5-Capacitor-ESR-Tester-Internal-Resistance-Mete
>> r-Test-In-Circuit-online-/121423268669?pt=LH_DefaultDomain_0&hash=item1c4564
>> 0b3d
>>
>> My friend received his meter a couple of days ago and says it works great.
>> I'm also ordering one for myself. This is a great tool that takes away all
>> the guess work when trouble shooting caps. Good luck!
>>
>> 73 Bert, VE3NR
>>
>>
>>
>> -----Original Message-----
>> From: Icom [mailto:icom-bounces at mailman.qth.net] On Behalf Of
>> rrocket88 at netzero.net
>> Sent: Thursday, April 23, 2015 2:21 PM
>> To: icom at mailman.qth.net
>> Subject: Re: [ICOM] IC-765 question
>>
>> Ron and everyone else , Thank you for this thread, my 765 starts right up /
>> the 761 kind of slow ,
>>
>> does anyone have a recommended ESR tester model they would care to share
>> info on ??
>>
>> Thanks to all
>>
>> Randy K4IMZ
>>
>> ---------- Original Message ----------
>> From: Ron via Icom <icom at mailman.qth.net>
>> To: icom at mailman.qth.net
>> Subject: Re: [ICOM] IC-765 question
>> Date: Wed, 22 Apr 2015 23:49:19 -0400
>>
>> Yep, the nice thing about the ESR testers is that:
>> - you don't have to remove the component
>> - the 'value' of the cap is shown
>> - the ESR is shown
>>
>> You will find some old caps will be WAY out of spec. Electrolytic caps that
>> are not used on a regular basis, will die early. That's why the older caps
>> on the 'shelf' will usually be NFG. Newer 105 C rated caps will last almost
>> forever, due to sealing / construction.
>> If you need any more info, feel free to contact me directly.
>> n4ue at arrl.net
>>
>> 73
>>
>> ron
>> N4UE
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Marc & Tricia Niebergall <mtniebs at gmail.com>
>> To: ICOM Reflector <icom at mailman.qth.net>
>> Sent: Wed, Apr 22, 2015 11:30 pm
>> Subject: Re: [ICOM] IC-765 question
>>
>>
>> Kinda what I expected. Maybe it is time to invest in some new test equip.
>>
>> Thanks,
>> Marc
>> On Apr 22, 2015 8:27 PM, "Ron via Icom"
>> <icom at mailman.qth.net> wrote:
>>
>>> No, I cannot suggest any specific caps. If you
>> were to purchase an ESR
>>> meter, you can test the caps 'in circuit' easily. It's
>> a great tool. I have
>>> several, but if you look on ePay, you can find some great
>> ones, for the $.
>>> When I refurb a radio (as I am doing with my 'new' Collins
>> 75S-3), I
>>> double check even the new ones. There is a range of ESR values that
>> the
>>> different values fall into.
>>> I do a lot of Lafayette old radios and
>> almost EVERY small value
>>> electrolytic cap used in the different stages are
>> 'bad'.......
>>>
>>> ron
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Marc &
>> Tricia Niebergall <mtniebs at gmail.com>
>>> To: ICOM Reflector
>> <icom at mailman.qth.net>
>>> Sent: Wed, Apr 22, 2015 11:17 pm
>>> Subject: Re: [ICOM]
>> IC-765 question
>>>
>>>
>>> Thanks Ron.  I see that there about 12 or so electrolytics
>> in this power
>>> supply.
>>> I have changed 3. Without the test equipment are there
>> any you
>>> would suspect
>>> over others?
>>> On Apr 22, 2015 7:49 PM, "Ron via Icom"
>> <icom at mailman.qth.net>
>>> wrote:
>>>
>>>> Hi, I have a large Icom collection and
>> although I don't have a 765, I
>>> do
>>>> have a 761. If you do your own repairs
>> as I do, the suggestion of
>>> acquiring
>>>> an ESR meter is HIGHLY recommended!
>>>
>>> I now have several and can
>>> state that electrolytic caps are the one
>>>>
>> electronic component that does NOT
>>> age well!
>>>> I replace hundreds / year.
>>>
>>>
>>>> ron
>>>> N4UE
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> -----Original
>> Message-----
>>>> From: Marc & Tricia Niebergall
>>> <mtniebs at gmail.com>
>>>> To:
>> ICOM Reflector <icom at mailman.qth.net>
>>>> Sent: Wed, Apr
>>> 22, 2015 4:34 pm
>>>>
>> Subject: Re: [ICOM] IC-765 question
>>>>
>>>>
>>>> It's looking like
>>> it is in the
>> internal power supply.  I disconnected it
>>>> and
>>>> jumped a Yaesu
>>> 13.8 vdc
>> and "instant on".  Tried the internal power
>>>> supply again
>>>> and a
>>> short
>> "pause" before coming alive.  So, now it is just a
>>>> matter of
>>>> deciding
>>>
>> which components are likely the problem.  May start with
>>>> all the big
>>>>
>>>
>> electrolytics.  They are pretty old and probably getting
>>>> suspect
>>>>
>> anyway.
>>>>
>>>>
>>> Suggestions?
>>>>
>>>> Marc
>>>>
>>>> On Wed, Apr 22, 2015 at 1:13
>> PM, Bert Almemo
>>>>
>>> <balmemo at sympatico.ca> wrote:
>>>>
>>>>> Most likely the
>> internal PS. The 765 is
>>> known
>>>> for PS problems. If you have
>>>>> an ESR
>> meter, Equivalent Series
>>> Resistor, you
>>>> could possibly measure the
>>>>>
>> elec. Caps without removing them.
>>> If not, maybe you
>>>> can borrow from a
>>>>
>>> friend. It's a great tool to trouble
>>> shoot elec.caps. Good
>>>> luck!
>>>>>
>>>
>>>> 73 Bert, VE3NR
>>>>>
>>>>>
>>>>>
>>>>>
>>> -----Original Message-----
>>>>>
>> From: Icom
>>>>
>>> [mailto:icom-bounces at mailman.qth.net] On Behalf Of Marc &
>>>>>
>> Tricia
>>>>>
>>>>
>>> Niebergall
>>>>> Sent: Wednesday, April 22, 2015 2:29 PM
>>>>
>>> To: ICOM Reflector
>>>>
>>>>
>>>> Subject: Re: [ICOM] IC-765 question
>>>>>
>>>>>
>> Will try that, thanks.
>>>>> On
>>> Apr 22, 2015
>>>> 11:26 AM, "GGLL"
>> <nagato at madryndigital.com.ar> wrote:
>>>>>
>>>>>>
>>> You may try to feed
>>>> the
>> rig with an external power supply to see if it
>>>>>>
>>> has the same
>> behaviour.
>>>>>
>>>>>
>>>>>> Regards
>>>>>> Guillermo - LU5WE.
>>>>>>
>>>>
>>>
>>>> El 22/04/15 a las 15:08, Marc &
>>>> Tricia Niebergall escibiÃ³:
>>>>>>
>>>>
>>>>> When
>>> pushing the AC on switch there is
>>>> sometimes a pause of a
>> couple
>>>>>>> seconds
>>> before the rig powers up.  Other
>>>> times it comes on
>> almost
>>>>>>> instantly.
>>> This usually occurs on the first
>>>> application of
>> the day.
>>>>>>> Don't
>>>>>>>
>>> know if it is a relay or an electrolytic
>>>>
>> capacitor taking time to
>>>>>>>
>>> charge or what.  I changed two 33uf
>> electrolytics
>>>> in the power supply
>>>>>>>
>>> that were swollen, but no
>> change.  Any suggestions are
>>>> welcome.
>>>>>>>
>>>>>>>
>>> Thanks,
>>>>>>>
>> Marc-k7wxk
>>>>>>> ----
>>>>>>> Your Moderator: Dick
>>>> Flanagan
>>> K7VC:
>> icom-owner at mailman.qth.net Icom
>>>>>>> Users Net: Sundays, 1700Z,
>>>> 14.316
>>>
>> MHz Icom FAQ:
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>>>>
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>>>>>>>   ----
>>>>>>
>> Your Moderator:
>>> Dick
>>>> Flanagan K7VC: icom-owner at mailman.qth.net Icom
>>>>>
>>> Users Net: Sundays,
>>> 1700Z,
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>>>>>>
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>>>>> ----
>>>>> Your
>>> Moderator: Dick
>> Flanagan K7VC:
>>>> icom-owner at mailman.qth.net Icom Users
>>>>> Net:
>>> Sundays,
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>>>>> Your
>> Moderator:
>>> Dick Flanagan K7VC:
>>>> icom-owner at mailman.qth.net
>>>>> Icom Users
>> Net: Sundays,
>>> 1700Z, 14.316 MHz
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>>>> FAQ: http://www.qsl.net/icom/
>>>
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>>>> Your Moderator: Dick
>>> Flanagan K7VC:
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>>>
>>> Icom Users Net: Sundays, 1700Z,
>>> 14.316 MHz
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>>>> Your Moderator: Dick Flanagan
>> K7VC:
>>> icom-owner at mailman.qth.net
>>>> Icom Users Net: Sundays, 1700Z, 14.316
>> MHz
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>>> Your Moderator: Dick Flanagan K7VC:
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>> icom-owner at mailman.qth.net
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>> support QSL/QTH.net: http://www.qsl.net/donate.html
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>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
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>
>
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
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>
>