Radio and power amplifier work a very short or the volume slightly adjusted work
2016-01-05 11:04:22
A: there are three kinds of reasons, will lead to protect radio amplifier phenomenon:
1st, the workload is greater than the power amplifier output rated load.
2, broadcast short circuit caused;
3, power amplifier itself. Can be ruled out by the following methods:
1, check the speaker's workload is how old? Negative speaker on radio engineering design work
General load should be 70% ~ 80% of the rated power output power amplifier. If the speaker workload is more than the standard,
Just need to change big power amplifier or decrease the number of speakers.
2, to load out all of the power amplifier, connected to a speaker working properly. Have a look at will
Now protect the phenomenon of power amplifier. If continue to appear power amplifier protection phenomenon, this is the fault power amplifier itself,
Need to change the power amplifier. If you do not see any protection phenomenon, this suggests that broadcast short circuit, needs
Inspection on radio line maintenance.