[Elecraft] K2 no TX on 20m&30m, no sidetone. after KIO2 upgrade. Any Pointers?

[EI7GN]

Hi Guys, My K2 serial#01291, with KSB2, K160RX, KNB2, KAF2, KAT2, KBT2,  Rev
A control board.

2 days ago i decided to build the KIOS that has been sitting on the bench
for a year now. I took a full day to build and fit same. I removed the
control board and did the sidetone mod (cut trace) with the two link wires
and cap. On the back of the control board thier were two large resistors in
series (83ohms each) soldered together bent over and heat shrink around
them. They were soldered to RP5 at pins 7 & 10 at least it looked like 10 as
it was broken away and not connected or I may have broken it away during
dissasembly. Anyway I soldered to 10. I reasembled the radio with the new
KIOS.
I changed the sidetone in the menu and got side tone. 
Next I noticed Lo P indicated when I try to tune auto atu on 20m or 30m
only. No output. all other bands ok.
Also receive is very very weak on 20m & 30m, all other bands ok.
I thought maybe the two resistors should have been disconnected, so took
them out. no difference.
Then thought maybe a problem with the cut trace mod i did on ctrl board.
Reversed that no change.
So put the resistors back, no change. Last thing I did was take out the
resistors. I now have a barely audible sidetone that must  have happened
somewhere in the last few steps.

Looking at the circuit I think 20m & 30m share bandpass filter, maybe i
damaged it with the cable from the KIOS when I put the lid on with the new
cable?

Any pointers appreciated................ John
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