Maker Pro
Maker Pro

Lightning damage to Denon receiver--advice?

traderjoe

Aug 19, 2012
1
Joined
Aug 19, 2012
Messages
1
Lightning struck a tree near our house and caused four electrical issues below. There are no signs of damage to anything except the 120ft tree which has a corkscrew line of blown bark along the whole trunk and a 12 inch crater at the base along one of the root lines which is near the incoming time warner co-ax. I don't use their cable, but I do use their phone and internet, so the lines come to the house.

1) house lights dimming randomly but not going out (resolved over 2 hours)--power company checked house main and all is well--"spurious" discharge they called it
2) GFCs in kitchen and garage popping--no issues when I reset them

3) This one is a bit weird: only the HDMI out port of my direcTV box to fail--the rest of the components work, as does the cord and the HDMI port on my TV

and now to my question:

4) my semi-sweet Denon (Avr-2802) receiver to go dead. I pulled the cover and there are no signs of damage. I disconnected the power cord from the mother board and checked it with a simple voltmeter and it checks fine at 110v. That's the limit of my experience.

Any thoughts what might be the weakest link in this circa 2000 semi-sweet receiver? I tried to attach a link to an image of the rear panel:
avr2802back_TG.jpg
 

duke37

Jan 9, 2011
5,364
Joined
Jan 9, 2011
Messages
5,364
Using your meter, measure the resistance across the power input pins. If it is open circuit, then you may, with luck, have a blown fuse and with no luck have a blown transformer.
Take one logical step at a time.
 

Similar threads

Top