Panasonic SA-HE200 AVR - "Overload" condition fix

[Samuel]

Hello there,

I'm in a quest to revive my Panasonic SA HE200 from its last demise: I can confirm that the microprocessor is dead after a disastrous recap attempt. A long time ago I solved the overload problem, later my wonderful wife managed to plug it directly in a 220V and I managed to fix this too. This is the reason I decided for a recap despite it working perfectly fine again, but I made a mistake that killed the micro. So here I am now.

This device has long been replaced and this is more like a fun project, I don't now why but I like this device and would like to see it running again

So if someone has a spare front panel board (and maybe more parts...) that can be parted with, please reach to me via PM.

A very long time ago I bought a digital board for this receiver from a guy on Ebay, I managed to reach him again but unfortunately he got hid of the remaining parts, so, here I am.

Best regards everyone

I'm till looking for this guys. If anyone have this part, please PM me.

 

[NinaKross]

So, I did this repair about a year ago, and the amp still works fine. I currently have 5 speakers attached.

I also posted this in another forum and another user had the same amp with the same problem. Using this guide, they also replaced IC602 MOSFET and it brought theirs back to life as well. Therefore, it appears to be a trend failure.

A couple of months ago (armed with some ear-plugs) I turned it up to 95% volume and let it play for about 15 minutes. Sure, the fan turned on and it was pumping out the heat, but it had no problems.

Not a bad amp ... It decodes AC3 DD5.1 DD-ex6.1 and DTS, optical and coaxial inputs, and goes to 600 watts.

I made repairs, but nothing worked. I bought a new one!

 

[xfsbikerhcjcx]

So looking at the other one a bit more - I found the fan doesn't turn on at all, no power there when it should be running. This AVR will go into overload at a certain volume when the fan is unplugged. I tested the fan with a AC adapter and it works fine. Maybe there is a bad relay or something - I'll have to look at it closer when I go to replace the caps.

 

[xfsbikerhcjcx]

It was the fan. Even though it would power by AC adapter there must be something wrong with it. It would not power up on my other SA-HE200 either. I replaced the fan with another Nidec I had from something else (slightly higher power) and it works without issue.