Radio problems

[Andre]

Saturday during my flight my radio decided to stop working. I then discovered that it blew a fuse and since then every time I switch the radio on the fuse goes. I use a buzzcom system with a Icom A22 radio
I have check all the wiring, connections ect. but still no luck. This is the first time in 500 hours with the system that this problem has happened. Where ells can I check for the fault

[DarkHelmet]

Do you blow the fuse on the buzzcom box every time?

[Andre]

YIP The minute I switch the radio on the fuse goes

[DarkHelmet]

Drop buzzcom a line - they are very helpful

[Morph]

Step 1. unplug the radio from everything and see if it works.

Step2 Test the intercom system witout the radio plugged in and see if this works.

Step 3, plug the radio in to the intercom but leave it unplugged from the power and test it. If it blows the fuse then there is a short circuit on the cable that feeds the audio from the radio to the intercom.

Step 4. If it works fine then plug in the external radio power. If this blows the fuse then this is where the problem is, either in the wiring or internal to the radio.

Let us know the end result.

[Henry6iix]

Ek vermoed jou radio het reverce polarite gekry .
maak die radio versigtig oop by die plug waar die ex krag in kom is daar gewoonlik `n diode wat short gaan haal hom uit en sit ` 1n4007 in sy plek maar maak seker dat jy hom in sit soos die ou een uitgekom het anders stuur die radio vir my en ek sal na hom kyk