Tascam DV-D01U help

I will admit I am probably missing something dumb, but this location seems to provide nothing but headaches and I am at my wits end.

Finally convinced this school to upgrade from an old Axcess system to a new Netlinx. Everything is working as it should except the tascam dvd player which I seem to have zero control over, so it leads me to being something so dumb I have overlooked it 100 times.

None of the Send Strings are working. I see the TX light blink. I get notification the string was sent:

Line 413 (11:09:55):: String To [5001:4:1]-[$02,$3E,$53,$4B,$50,$63,$47,$30,$30,$32,$20,$20,$20,$20,$45,$38,]
Line 414 (11:09:55):: String To [5001:4:1]-[$03]

The string is defined in the constants

GOTK2_STR = "$02,$3E,$53,$4B,$50,$63,$47,$30,$30,$32,$20,$20,$20,$20,$45,$38,$03"

And in the program:

PUSH[TP,133] (* CALL TK2 TO PLAY MISSION 1 *)
{
ON[TP,133]
ON[TP,80] (* DVD PLAY BUTTON *)
SEND_STRING DVD,"GOTK2_STR"
SYSTEM_CALL [SWT] 'SWT9' (SWT,6, 9, 1) (* DVD TO TP *)

That is one example of code for this device.

What am I missing? I am sure it'll be double face palm worthy when I'm shown, this is just becoming one of those I need a fresh set of eyes moments. Thanks for taking a look.