Each channel of the TIU is equipped with an internal fuse. Therefore, if there is no volt-
age on the output of the TIU channel when voltage is supplied to the input, open the
TIU and check the internal fuse. The fuse is a yellow, 20AMP, automotive type fuse.
These are available at local automotive stores and also from MTH. The MTH part num-
ber is BB-0000030.
Variable Channel 1 Fuse
Variable Channel 2 Fuse
Fixed Channel 2 Fuse
Fixed Channel 1 Fuse
Remove Screws
Remove Screws