[TenTec] ALC not working, Anyone had the covers off?

[Ron Castro]

Don's dismiss the possibility that the LED could be in backward.  I  took 
delivery on $125,000 worth of industrial back-plane computers and software 
this week and found one that had the PWR LED hooked up bass-ackwards on the 
mother-board!

Ron N6AHA

----- Original Message ----- 
From: "Lin Davis" <linbdavis at earthlink.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Saturday, May 20, 2006 1:32 PM
Subject: Re: [TenTec] ALC not working, Anyone had the covers off?


> Lee,
>
> Also, if the O2 is same as O1, then the ALC LED is driven from the same 
> UCN6810
> IC as the VFOA SUB RX and VFO B SUB RX button LEDs. (These buttons are 
> shown on
> page 7 of the Orion II users manual as 12 and 13.)
> The UCN6810 PCB reference designator is U7 and is located on the A8 board, 
> which
> Sinisa pointed out is the Keypad Board (front panel).
>
> So if the two button LEDs mentioned are working ok, and the ALC LED 
> doesn't even
> come on when powering up, I would highly suspect the LED itself or cold 
> solder
> joint at U7 pin 12 or the LED pins.
>
> Good luck
> Lin
> WB1AIW
>
> Lin Davis wrote:
>
>> Hi Lee,
>>
>> When you first power the O2, the ALC LED should come on for a short 
>> moment as it
>> powers up. The sequence is
>> 1. S-meter backlight on.
>> 2. S-meter backlight off and all front panel LED's on (including ALC) 
>> (briefly).
>> 3. Front panel LED's off, LCD display backlight on.
>> 4. etc.
>>
>> Do you see it come on?
>>
>> Lin
>> WB1AIW
>>
>> Kc9cdt at aol.com wrote:
>>
>>>Heil Goldline Mic, ALC is working (power setting controls output) And 
>>>audio
>>>output works fine. The light has never come on since I got OII in Feb.
>>>
>>>At least I think from all that that the ALC is working fine...
>>>
>>>If it's just the led, not sure I want to send it to TT and risk shipping
>>>issues.
>>>
>>>73,
>>>Lee
>>>_______________________________________________
>>>TenTec mailing list
>>>TenTec at contesting.com
>>>http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>>
>>
>>
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>>
>
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