Reporting question for Board - Marshall, Replacement for JCM 2000 DSL 100

Product:
Board - Marshall, Replacement for JCM 2000 DSL 100

Question:
After replacing board, once I turn off the stand by switch the main fuse blows. The fuse does not blow when the tubes are not in the amp. The tubes are new, why might this happen?

Answer:
We do not offer tech support. You may need to take your amp to a qualified tech.