Ok I desoldered the 10 pin connector and clearly saw the H02 pin connection didn't have any solder so now the 10 pin connector sit about 5mm high as I soldered the top pads

Now tried again and still voltage to R52 so thought ok the only thing this can be is the ribbon connector Got out my 10 pin ribbon connector for my AVRDude as  shown below

H02 L02





H02 L01





H01 L01





L02 L01





So hopefully these scope pic's are right

Now while I had the board running decided to take some voltage checks, the 18V zener was around 18 volts and the TIP25 measured right.

Taking voltage reading at the mosfets pads where the positive probe is on Vbat+(26.03 volts) and the negative probe used for the test.

L01
G 16.94
D 9.92
S 26.03

H01
G 9.90
D 0
S 9.90

L02
G 17.2
D 10.3
S 26.03

H02
G 10.3
D 0
S 10.3

  Bryan1 said  

Now while I had the board running decided to take some voltage checks, the 18V zener was around 18 volts and the TIP25 measured right.

Taking voltage reading at the mosfets pads where the positive probe is on Vbat+(26.03 volts) and the negative probe used for the test.

L01
G 16.94
D 9.92
S 26.03

H01
G 9.90
D 0
S 9.90

L02
G 17.2
D 10.3
S 26.03

H02
G 10.3
D 0
S 10.3

To confuse the enemy?

  Quote  

To confuse the enemy?

So it would seem, converted to ground ref.