[Elecraft] P3 Failure, and question

[Dave Cole]

Rick,
A further thought on this...  Next time your P3 fails, can you try and 
grab an image from it using the utility?  I just thought of that, mine 
will not grab an image, when it is failed, so it is probably not the 
backlight on mine.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 4/12/21 6:03 AM, Dave Cole wrote:
> Rick,
> 
> Thank you!  I appreciate the datapoint in this.  I was just looking over 
> the schematic and came to the same conclusion...  It looks like a 
> backlight problem to me as well...  I tried to find a datasheet on teh 
> 4538 IC that appears to control it, but alas, nope.  I got mine to come 
> back on by power cycling it as well...
> 
> Hopefully someone has actually fixed this, and knows which cap...
> 
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
> 
> On 4/12/21 5:27 AM, Rick Stanback wrote:
>> My P3 does the same thing.  If i keep cycling power it eventually comes
>> on and works.  I suspect there is a bad capacitor in the LCD backlight
>> power.  I have not actually looking into it yet.
>>
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