6
2.
SAFETY INSTRUCTIONS
DANGEROUS HIGH VOLTAGE INSIDE!
The power amplifier is using high voltage up to 2800 (3300 ) V DC, which is very dangerous for human
life! Read next safety instructions carefully first, before you will start to install and operate power
amplifier! NEVER VIOLATE THE FOLLOWING SAFETY RULES!
NEVER ALLOW CHILDREN to play around PA or to touch power amplifier or connected cables in working
condition, or to push anything into the case holes!
Never turn the amplifier on without the upper lid in place. DO NOT ATTEMPT TO SHORT OR BYPASS
safety switch under upper lid!
The OM2501HF amplifier should not be used in a WET or HUMID environment or be exposed to
RAINFALL!
Do not turn the amplifier ON without having connected the ANTENNA or properly rated DUMMY LOAD!
A hazardous HF voltage may build up on the antenna connector after turning the amplifier on with no
antenna or dummy load connected!
Before removing the upper lid of the amplifier make sure that power supply has been disconnected AT
LEAST 10 minutes allowing for the electrolytic capacitors to discharge fully. Disconnect power cord from
the outlet!
Any work inside the PA (internal fuses replacement, tube replacement, etc.) should be carried out only
by a
professionally qualified person!
