D
Dragon
New member
When I was playing like a normal day, I heard firecrackers sound came out from my VH4 then I know my powertube was blown.
After replaced a new set of powertubes and 0.25A slowblow tube fault fuse at the back,
I had fired up my VH4 and noticed that the overall "hum" level increased.
Another thing I also noticed that the "hissing" even happened on Ch.1 with low gain setting.
My VH4 was not quiet like before anymore.
Took out the chassis and flipped it over, I saw something wrong from my two hum resistors.
Verified with Papa Peter and he confirmed that my hum resistors need to be replaced.
I had followed the Diezel service manual sent by Papa and completed my hum resistors replacement.
Everything back to normal and thanks to Peter.
After replaced a new set of powertubes and 0.25A slowblow tube fault fuse at the back,
I had fired up my VH4 and noticed that the overall "hum" level increased.
Another thing I also noticed that the "hissing" even happened on Ch.1 with low gain setting.
My VH4 was not quiet like before anymore.
Took out the chassis and flipped it over, I saw something wrong from my two hum resistors.
Verified with Papa Peter and he confirmed that my hum resistors need to be replaced.
I had followed the Diezel service manual sent by Papa and completed my hum resistors replacement.
Everything back to normal and thanks to Peter.