Need help to cope with the K2-KPA100 Info 080 message

[Pauli Nunez EA3BLQ]

Greetings from Barcelona to all.

Friends, need help to cope with the dreaded and hatred "Info 080" message.

Here's my story:

Have been working with the integrated K2/100 and the KAT100-1 for rather a
long time with no problem at all whatsoever.

One day, some three months ago, I decided to upgrade my KPA100 introducing
the changes to raise the SWR threshold, updating the U1 firmware to version
1.09 and installing the new shielding with the ground clips. Now I have
learned that I am once again behind with the KPA100 F/W. Will have to
upgrade to version 1.10 to be up to date.

I also upgraded the following firmwares:
K2MCU to version 2.04P,
K2IOC to version 1.09
KSB2 to version 1.08b and
KDSP2 to version 3.1

And so as to be able to use my K2DI-PCI Digital-Computer Interface, decided
to split my K2/100 and install the upgraded KPA100 with the KAT100-2 in one
EC-2.

After having made, checked and rechecked all the split connections, I
switched the K2 on and ... guess what ...? You are right, I got the damned
"Info 080" message. First time I saw it. Tried installing the KPA100
directly on the K2 as I had it formerly. The same result.

To make a long story short: If I do not introduce the KPA100 in the circuit
I do not get that message. The K2 talks with the computer obeying all the
CAT orders it receives and the KAT100 does work ok, switching bands and
tuning the antenna. This circumstance makes me believe that the problem
resides in the KPA100. When reading the KPA100 troubleshooting notes for the
"Info 080" message it refers me to the K2 Manual troubleshooting notes,
which I have read, checked and counterchecked.

Have readjusted C22 at the control board with the help of a calibrated
external counter.
The resistance between U1 pin 28 on the RF board and U6 pin 40 at the
control board is 923 Ohms (well within the required 900-1000 ohms)
Neither R6 on the control board or R64 on the RF board are shorted to
ground.
The voltage on pin 28 of U1 with the K2 power on is 5.63 v which reading is
ok as for the established canons. (Power supply voltage at the very K2 inlet
is 13.8 v)

I have inspected the KPA100 board and have checked it once and again, mainly
the area object of the last mod, looking for any cold solder and/or bridges
but all seems to be correct.

Any ideas or suggestions will be much welcome. Thank you in advance.

Best 73

Pauli, EA3BLQ
K2/100 # 1044
[hidden email]
[hidden email]
URL: www.qsl.net/ea3blq





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[Frank DL4KQ]

Have the SAME problem here with 3 x K2`s (+KPA100 and KAT100 in EC2) !


> After having made, checked and rechecked all the split connections, I
> switched the K2 on and ... guess what ...? You are right, I got the damned
> "Info 080" message. First time I saw it. Tried installing the KPA100
> directly on the K2 as I had it formerly. The same result.
>
 This circumstance makes me believe that the problem
> resides in the KPA100.

YES !
My K2`s alone works still perfect. As soon the KPA100 is added  .... ==> 080
message.
And it makes no difference to have the KPA100 in the K2 or in the EC2 .
The KAT100`s (in EC2 but w/o KPA100) works erratic ...

73
Frank, DL4KQ




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[Philip L Carter]

Pauli,
Is it possible that you popped the 150uH (I think) choke in the rs232
part of the KPA100 when you had it out?  If everything else is working,
It has to be in either the KPA100 or maybe in the menu setting for the
PA.  This of course assumes that you have the cable correct that hooks
everything together and that it isn't too long.

--
Phil Carter, WD8QWR
QRPARCI #9986, CQRP #3
Fists #6514, FP #262
QCWA #32302


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[Don Brown-4]

Hi

Did you make the resistor and capacitor changes on the AUX buss. R6 should be 100 ohms and c12 should be .0027 on the control board. C64 should be 100 ohms on the RF board.

Don Brown
KD5NDB



  ----- Original Message -----
  From: Pauli Nunez EA3BLQ<mailto:[hidden email]>
  To: [hidden email]<mailto:[hidden email]>
  Sent: Sunday, July 18, 2004 12:29 PM
  Subject: [Elecraft] Need help to cope with the K2-KPA100 Info 080 message


  Greetings from Barcelona to all.

  Friends, need help to cope with the dreaded and hatred "Info 080" message.

  Here's my story:

  Have been working with the integrated K2/100 and the KAT100-1 for rather a
  long time with no problem at all whatsoever.

  One day, some three months ago, I decided to upgrade my KPA100 introducing
  the changes to raise the SWR threshold, updating the U1 firmware to version
  1.09 and installing the new shielding with the ground clips. Now I have
  learned that I am once again behind with the KPA100 F/W. Will have to
  upgrade to version 1.10 to be up to date.

  I also upgraded the following firmwares:
  K2MCU to version 2.04P,
  K2IOC to version 1.09
  KSB2 to version 1.08b and
  KDSP2 to version 3.1

  And so as to be able to use my K2DI-PCI Digital-Computer Interface, decided
  to split my K2/100 and install the upgraded KPA100 with the KAT100-2 in one
  EC-2.

  After having made, checked and rechecked all the split connections, I
  switched the K2 on and ... guess what ...? You are right, I got the damned
  "Info 080" message. First time I saw it. Tried installing the KPA100
  directly on the K2 as I had it formerly. The same result.

  To make a long story short: If I do not introduce the KPA100 in the circuit
  I do not get that message. The K2 talks with the computer obeying all the
  CAT orders it receives and the KAT100 does work ok, switching bands and
  tuning the antenna. This circumstance makes me believe that the problem
  resides in the KPA100. When reading the KPA100 troubleshooting notes for the
  "Info 080" message it refers me to the K2 Manual troubleshooting notes,
  which I have read, checked and counterchecked.

  Have readjusted C22 at the control board with the help of a calibrated
  external counter.
  The resistance between U1 pin 28 on the RF board and U6 pin 40 at the
  control board is 923 Ohms (well within the required 900-1000 ohms)
  Neither R6 on the control board or R64 on the RF board are shorted to
  ground.
  The voltage on pin 28 of U1 with the K2 power on is 5.63 v which reading is
  ok as for the established canons. (Power supply voltage at the very K2 inlet
  is 13.8 v)

  I have inspected the KPA100 board and have checked it once and again, mainly
  the area object of the last mod, looking for any cold solder and/or bridges
  but all seems to be correct.

  Any ideas or suggestions will be much welcome. Thank you in advance.

  Best 73

  Pauli, EA3BLQ
  K2/100 # 1044
  [hidden email]<mailto:[hidden email]>
  [hidden email]<mailto:[hidden email]>
  URL: www.qsl.net/ea3blq<http://www.qsl.net/ea3blq>





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