Audio Note Meishu Line Silver - Manual (Page 7)

The amplifier is shipped without the 3 large valves installed. It is necessary to install
the valves first.
It is essential that the valves are installed correctly or serious damage that is not
covered by the warranty will result. We recommend that your dealer perform
this procedure for you if you are in any way unsure.
FIRSTLY, ENSURE THAT THE AMPLIFIER IS NOT CONNECTED TO A MAINS
ELECTRICAL SUPPLY, AND THAT THE POWER CORD IS NOT CONNECTED TO
THE AMPLIFIER.
Using a No.2 pozidrive® screwdriver, remove the 6 x screws for the top and 7 x
screws for each side of the top cover.
Now remove the 3 valves that are packed inside the amplifier. Also inspect the inside
of the amplifier to check that nothing has become damaged during transit including
the remaining 5 smaller valves.
Carefully unwrap the 3 valves. You will find the following: -
2 x 300B valves
1 x 5U4G valve.
Once again, please understand that it is absolutely vital these valves are fitted
correctly.
Looking from the front of the amplifier install the
300B valves first: -
VALVE INSTALLATION