crwdns2934241:0crwdne2934241:0 bill
crwdns2934249:0crwdne2934249:0:
It is likely a bad diode in the power supply. Disassemble it and check the power diodes with an ohmmeter. The problem may also be regulators or transistors after the power supply. Many of those can also be checked with an ohmmeter. Basically, something is shorted out and putting too much load on the fuse.
crwdns2915684:0crwdne2915684:0:
open