USB Blaster

[Altera_Forum]

I have buy a new USB Blaster, the old do not work, how I can do for repearing?? or where is possible to send for repearing?? 

thanks Maurizio

[Altera_Forum]

The most common failure on USB blasters in the output buffers chip. You can try and replace it. IIRC it is a 74LVC244

[Altera_Forum]

Thanks in advance, now I find the chip and I replace 

regards  Maurizio

[Altera_Forum]

I have followed you suggestion, and now the damage USB Blaster working Thanks a lot, I have recovered 300 Euro 

regards Maurizio

[Altera_Forum]

Hi all, I have the same problem with my usb blaster rev C, I replaced the LVC244 but the usb blaster don't works yet. Then I checked the LVC244 and found that it have a short between LVC244.19(2OE) and LVC244.10(GND), I checked this line LVC244.19 are in parallel with U9(marking code ZO4G) I suspect a internal damage in IC. Someone can help me to found ic part for U9. It probable a  

single buffer ic?

[Altera_Forum]

possibly this circuit!!!!!!