So I tried the cart on my Super Famicon and...still nothing. Just a black screen.
Ran the diagnostic again and got this:
===log opened===
derp
SD test... please insert card
=============================
data=111133b04504
crc1 = d805a1bf crc2 = d805a1bf PASSED
RTC Test
========
setting clock to 2011-01-01 00:00:00
2011-01-01 00:00:00
waiting 5 seconds
new time: 2011-01-01 00:00:05
PASSED
FPGA test
=========
configuring fpga...
fpga_pgm: 212501 bytes programmed
FPGA configured
basic communication test...PASSED
RAM test
========
Testing RAM0 (128Mbit) - clearing RAM - writing RAM - verifying RAM -RAM0 PASSED
Testing RAM1 (4Mbit) - writing RAM - verifying RAM...RAM1 PASSED
SD DMA test
===========
clearing RAM - loading test file - verifying -PASSED
Loading SNES test ROM
=====================
sysclk test
===========
measuring SNES clock...
21480433 Hz
21480434 Hz diff = 1 max = 1
21480435 Hz diff = 1 max = 1
21480434 Hz diff = 1 max = 1
CPUCLK: 3475086
READCLK: 0
WRITECLK: 0
PARDCLK: 0
PAWRCLK: 0
REFRCLK: 78740
ROMSELCLK: 0
PASSED
SNES test status: IRQ: 00 PA: 00 MEM: 00/00
Timeout! SNES appears to be dead!
TEST SUMMARY
============
flash check: 1111-4-33b04504-dfb09a7f-b8-11-0
Test Result
----------------
SD Passed
USB not implemented
RTC Passed
CIC no run
FPGA Passed
RAM Passed
SD DMA Passed
CLK Passed
DAC not implemented
SNES IRQ FAILED
SNES RAM FAILED
SNES PA FAILED