As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WILL NOT TRANSMIT ON ALL FREQUENCIES AND WILL NOT SWITCH. PERFORMED PRELIMINARY INSPECTION. COULD NOT DUPLICATE PROBLEM. ADJUSTED FREQUENCY. FOUND DISPLAY STAYING DIM ALL THE TIME. REPLACED BAD V901 PHOTOCELL. REPAIRED PROBLEM. BENCH CHECK GOOD.