These are scanned copies of the Hsinchu Free Bus Time Schedule that I got from the Hsinchu Foreigner Assistance Center. I will try and scan some better looking copies if I get the chance. As you can tell I use my free bus schedule a lot. All of these buses you can ride free of charge!
Weekdays (平日) = Monday-Friday
Weekends (假日) = Saturday, Sunday, and any government holidays
Bus 50 Weekdays:
Bus 50 Weekends:
Bus 51 Weekdays:
Bus 51 Weekends:
Bus 52 Weekdays:
Bus 55 Weekday
Bus 55 Weekend
Bus 56 Weekend
Bus 71

Bus 72 & Bus 73
Bus 75 & Bus 76
Bus 77

Bus 78

Bus 79 & Bus 80
Some additional free bus routes in Chinese. Photos courtesy of Greg HD: