[TenTec] Omni VI 563 Opt. 3 help

[Bryan Lee Cornwell]

On 12/17/2011 7:55 AM, Barry N1EU wrote:
> I know this is a dumb question, but what's the source of the +REG?
>
> 73, Barry N1EU
>
> On Sat, Dec 17, 2011 at 10:41 AM, Bryan Lee Cornwell
> <k2blc at embarqmail.com>  wrote:
>> Hello All
>>
>> Upon turning on a Omni VI 563 Opt. 3 , I let some smoke out of the box.
>> U1 on the Xtal Osc-LO board had failed and took out the trace on the
>> board at pin 12. I removed the IC and replaced with a socket and new IC.
>> Rig is still completely dead with the exeption of the NOTCH and ATTN
>> led's (when buttons pushed).
>>
>> I also found the 7805 for the logic board 5.0V had failed. That has been
>> replaced and I now have 5V to the locic boards. All my 13.8 V (red
>> wires) seem to be OK with the proper voltage. The + REG voltage (orange
>> wires) is only 1.6 Volts at all connectors....
>> should be 8.5V. I have 13.6,13.7, and 13.9 at Q19 on low level driver
>> board, Does that seem right ?
>>
>> Symptoms are No lights...No display...nothing but the above mentioned. I
>> tried reset using both CLEAR and ENTER buttons with turning power on
>> ....nothing.
>>
>> Is there any published data on typical voltages at the pins of the
>> various IC's?  I checked the reflector arcives and couldn't find anything.
>>
>> I haven't call Ten-Tec yet and was hoping I could learn a bit by trouble
>> shooting this myself...but I may be in over my head.
>> Any ideas????
>>
>> --
>> Bryan Lee Cornwell
>>
>> k2blc at embarqmail.com
>>
>> http://k2blcspace.embarqspace.com/
>>
>>
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Barry
It is  developed on the low-level driver board and distributed at 
connector 62.

Lee

-- 
Bryan Lee Cornwell

k2blc at embarqmail.com

http://k2blcspace.embarqspace.com/