Tom -
You da' man! I say again, YOU DA' MAN!!. You helped this dimwitted idiot fix
it and NO shipping to Ten Tec. Man am I jazzed!!!!!!!! After I read your
email I started tracing the voltage backwards from pin 3 of connector 41.
The logic board is connected to connector 41 through another connector
labeled 41A. These are 3-pin female connectors going to 4-pin male
connectors. Looks like Ten Tec moved 41A over by one pin and did not test
the 1.8 filter. I moved 41A over by one pin and ALL IS FIXED. Geez I feel
like Watson just assisting Sherlock Holmes in a good case. THANK YOU
CHESTER!!!!!!!!!!!!!!! (can you tell I'm excited about this?)
OK TOM - ONE QUESTION - HOW COME YOUR EMAIL SAYS CHESTER?????
73/Tim NZ7C
----- Original Message -----
From: "Chester" <calderman@cox.net>
To: <tentec@contesting.com>
Sent: Saturday, March 01, 2003 4:53 PM
Subject: RE: [TenTec] no voltage to 1.8 filter?
> Tim,
>
> It looks like I have mis-read your email. You said you ARE
> getting voltage for the 250 and 500 Hz filters, but NOT for the 1.8kc
> pin on connector 41. Since that is the case,
> I'm pretty sure the only thing that can be wrong is that you have either
> a broken (or wire crimped to the chassis somewhere) wire between the
> Logic Board and the PBT board.
>
> The 1.8kc voltage is generated on the Logic Board, U22. U22
> feeds both the PBT board AND the light on the Omni's keypad. So if the
> light on the keypad comes on, then U22 is working correct and the
> problem has to be wiring.
>
> Sorry for the troubleshooting verbiage in my previous post.
>
> Tom/W4BQF
> calderman AT cox.net
>
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com] On Behalf Of tlogan7@cox.net
> Sent: Saturday, March 01, 2003 5:22 PM
> To: tentec reflector
> Subject: [TenTec] no voltage to 1.8 filter?
>
> Hi folks -
> I've determined that the 1.8 slot on my PTB board has no voltage
> coming
> through the three pin connector 41 on the rear left corner of the
> board.
> When the 250 and 500Hz filters are engaged voltage will run through
> their
> respective pin on the connector - but when I turn on the 1.8 I do not
> get
> any voltage.
> I'm a total electronics nimno - but as far as I can tell the only
> components on this board are either chokes, toroids with binocular type
> cores, one normal toroid and three pots. So that must mean that the
> connector at 41 runs to diodes that I'm guessing are in the jungle on
> the
> back of the front panel - something I'm not sure I want to mess with.
> Based on this info does anybody have any additional light they can
> shed on
> my 1.8 slot? It appears that it just plain does not get switched on even
> though the panel light turns on . Thanks for any help.
> 73/Tim NZ7C
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
|