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#uBITX #ubitx

SM6MOJ
 

Two capacitors -C210 and C216- arr missing from my uBITX motherboard.
Also, when I connect the board to 12V, the book says that the current
drain should be 100mW. But there is no current drain att all.

Can I assume that the board is fault?

Michael Shreeve
 

I looked at the V4 schematic and the value for both of those caps is zero. This means there are no caps installed. V3 has the same lack of capacitors. So, he isn't using them. 

On Sun, Jul 1, 2018 at 11:07 AM, SM6MOJ <andrew@...> wrote:
Two capacitors -C210 and C216- arr missing from my uBITX motherboard.
Also, when I connect the board to 12V, the book says that the current
drain should be 100mW. But there is no current drain att all.

Can I assume that the board is fault?










--
Michael Shreeve N6GRG

Michael Shreeve
 

Are you getting audio from the board ?

On Sun, Jul 1, 2018 at 11:54 AM, Michael Shreeve <shreevester@...> wrote:
I looked at the V4 schematic and the value for both of those caps is zero. This means there are no caps installed. V3 has the same lack of capacitors. So, he isn't using them. 

On Sun, Jul 1, 2018 at 11:07 AM, SM6MOJ <andrew@...> wrote:
Two capacitors -C210 and C216- arr missing from my uBITX motherboard.
Also, when I connect the board to 12V, the book says that the current
drain should be 100mW. But there is no current drain att all.

Can I assume that the board is fault?










--
Michael Shreeve N6GRG




--
Michael Shreeve N6GRG

SM6MOJ
 

Dear Michael

Thank you for your wise words. Now all I have to do is work out why there
is no current drain.

Andrew

Lowell Haney NE4EB
 

If there is no current drain, what shows up on the LCD? Is the back light lit?

What method are you using to measure the current draw?

SM6MOJ
 

My uBITX is finally finished. The Hammond case was a tight fit and the knobs came from my junkbox. The manipulator is home made and the microphone is housed in an old pill box.

It did not want to know about the straight key at first, so I upgraded to KD8CEC firmware. This knocked out both keys. After trying three different uBITX firmware packages and two different uBITX managers, I reverted to the default firmware. It could be that the uBITX manager and I did not agree with each other. Finally, it accepted both keys, although the straght key sounded a bit flakey until I cleaned the morse key points.

Tony Frey
 

Which Hammond case did you use?

Thanks, Tony 
KE4MHP

Acta non Verba
 


From: 30111237140n behalf of
Sent: Thursday, July 12, 2018 11:02 AM
To: bitx20@groups.io
Subject: [BITX20] #uBITX
 
My uBITX is finally finished. The Hammond case was a tight fit and the
knobs came from my junkbox. The manipulator is home made and the
microphone is housed in an old pill box.

It did not want to know about the straight key at first, so I upgraded
to KD8CEC firmware. This knocked out both keys. After trying three
different uBITX firmware packages and two different uBITX managers, I
reverted to the default firmware. It could be that the uBITX manager and
I did not agree with each other. Finally, it accepted both keys,
although the straght key sounded a bit flakey until I cleaned the morse
key points.