APM Power Up Errors

Hello,
   I'm getting pages of errors via the Arduino Serial Monitor on power up:

OK: PE3
EError: PE6 & PB0, Also check pin PE5,PE7 is not reading HIGH
Press Y to continue...
OK: PE7
EError: PE3 & PH1, Also check pin PE2,PE4 is not reading HIGH
Press Y to continue...

(pages more)

Followed by PWM readings all the same, and an apparently endless loop.  I've not tried to upload anything because of the error condition, and I was unable to find any refererence to this condition.

I have the complete error log, if necessary.

Clearly, the USB is functioning (57,600, configured as documented)

After soldering and verifying the connections, I powered it up using the USB cable. On the APM, following LEDs are on: blue PPM solid, red power solid, yellow MUX solid; on the oil pan the blue "ON" led is solid, and the A and C LEDs are dimly lit after pressing "Y" a number of times in answer to the error prompt.  B does not appear to be lit at all.  Also, the RX and TX LEDs flash during serial communications.  I have also re-verified the soldered pins under a lense.

Initially, I had the MediaTek GPS connected, but have since unplugged it.  Nothing else has been connected (radio, servos, etc.). 

UPDATE: I connected to the APM using the FTDI cable, and the response is the same.  Is this APM DOA?

Any thoughts?   Thanks,

                     -Dale

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