_1 looks fine, they are all same as on site you gave link for initial dumps. Also video rom looks fine (except RB100_B3_3.HEX that is blank).

The _2 roms look strange like they have stucked bit's.

RB100_B3_2.BIN FIXED BITS (xxxx1xx1)

Also RB100_HD_2.BIN RB100_B_2.BIN are different then original dump, but variable stucked bits.

Will hook up video rom to check how it looks.