When I stated “clean connectors “ I didn’t say just a select few or ones. They
ALL should be cleaned. The Q-Tip provides additional scrubbing action where
as just applying any cleaner does not provide scrubbing action.
When finished one will have a pile of dirty and black Q-Tips.
Bob, K4TAX
Sent from my iPhone
> On Sep 29, 2020, at 8:33 PM, jbrannig via TenTec <tentec@contesting.com>
> wrote:
>
> Many good ideas....I have a service bench geared to tube radios, but usable
> for the OMNI.Sniffing for RF is a great start (after cleaning)I have to get
> my butt in gear and get serious about this.Tnx again and keep 'em
> coming...JimSent from my Galaxy Tab® A
> -------- Original message --------From: Ken Brown <kenradiobrown@gmail.com>
> Date: 9/29/20 8:48 PM (GMT-05:00) To: Discussion of Ten-Tec Equipment
> <tentec@contesting.com> Subject: Re: [TenTec] OMNI VI plus Check all the
> things that are common to both the transmit and receivefunction. If front
> panel indications all seem normal, VFO readout etc. youcan probably rule out
> power supply, or power distribution inside the rig(but not for certain) or
> the VFO PLL system. I'd check all of the bandpass filtering and cables that
> are in between theantenna port and the receiver front end. Maybe connect
> signal source(antenna) bypassing those filters and see if the receiver perks
> up.How to attack this problem is highly dependent on the tools you
> haveavailable. At the very least a general coverage receiver with some sort
> ofsniffer loop or probe would be helpful for listening for variousoscillators
> in the radio. A spectrum analyzer would be nicer. Do you have asignal
> generator? If so you can test whether you can input a signal to theIF stages
> and hear it.Find out what does work and keep checking until you find what
> doesn't. Canyou couple a 9 MHz signal into the receiver product detector and
> hear it?Can you couple a 6.3 MHz signal into the 6.3 MHz IF stages and hear
> that?Can you couple a 9 MHz signal into the first IF stages and hear that?
> Canyou hear the BFO with your general coverage receiver using a pickup
> loopnear the BFO? Can your general coverageCleaning contacts is a really good
> idea and likely to fix the problem.DE N6KBOn Tue, Sep 29, 2020 at 2:20 PM Bob
> McGraw K4TAX <rmcgraw@blomand.net>wrote:> Jim:>> How long has it been since
> the connectors internally were cleaned?> Likely never. So it is time to
> unplug each one, scrub the male pins> with a Q-Tip with contact cleaner
> applied and plug it back in. Do NOT> spray anything into the radio.>> 73>>
> Bob, K4TAX>> On 9/29/2020 6:37 PM, jbrannig via TenTec wrote:> > My OMNI died
> suddenly.No signals on receive and no RF out on> transmitEverything else
> functions as normal..ie. frequency read out, audio> noise, bandchange...Any
> ideas on where to start looking?Tnx es 73JimSent> from my Galaxy Tab® A> >
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