Brian,
U1 Pins 15-19 and 27 are not used, so whatever voltage they may be at is
not likely to be causing any problem.
Yes, the DSPx module does draw a bit of current, so it will normally
produce some heat. Just how much is difficult to say via email. While
it may be warm, it should not be uncomfortable to touch for 30 seconds
or more.
Do you mean U3 on the main DSP2 board? That is the clock module, and it
is soldered in. The only socketed device on the KDSP2 is U1. I doubt
that U3 would cause a problem other than bad timekeeping.
73,
Don W3FPR
On 3/21/2014 6:35 PM, Brian - N5BCN wrote:
Hi Don,
I performed a voltage test on U1 with the K2 on, DSPx module removed, coin
cell batt installed.
All pins tested ok except pins 15-19 and 27 were at 5V, the spec sheet says
that they should be at 0 V. It is not obvious to me if this represents a
problem per the schematic of U1.
Also, the DSPx module gets pretty warm when plugged in and the K2 is powered
up.
BTW, U3 on my DSPx module is soldered directly to the board, there is no
socket.
Thanks and 73,
Brian N5BCN
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