you may check the coax connector on that faulty unit
it might be single strand of wire shorting connection with core solid copper cable.
it could be on your STB side or on the splitter side.
if all connections are okay, you may also check the LNB IN socket for any irregularity.
it might be due to improper crimping of F-connectors as well.
if all else fails, it could be the box
you may want to try to swap the boxes.
if the faulty box is still faulty on the other coax connection, then you have a defective box that is subject for replacement.
hth
Dear Sir P4,
Sinubukan na po namin pagpalitin yong STB. same pa rin po yong nangyayari. It means ok po yong pagkakagawa ng connectors?
Na observed po namin recently na pag nililipat yong primary STB sa channels 25, 26, 29, 31, 33, 36, 37, 38, 40, 41, 42, 45, 46, 47, 48, 51, 52, 53, 59, 63, 64, 66, 67, 90, 91, 96, 97, 98, 100, 102, 104, 105, 106, 107 and 110 doon po nawawala ang signal doon sa isang STB.
Ano po kaya problema?