PLEASE HELP receiver overheat problem

scottb32198 · 15th November 2003, 01:14 AM

I bought a JVC rx-dv3 receiver and when I powered it up, it said "overheat". So, I replaced the fan, and it works for about 4 hours, but the new fan does not turn on and it will still overheat. How do I fix this? I dont want to take it to a service center because its 45$ and 2 weeks just for them to LOOK at it.

jleaman · 15th November 2003, 04:35 AM

I Would say that the Thermal Circuit is not working that or the Thermister is Dead.

I would poke around in the amplifier and start searching for power starting from the fan PSu PART. that or put a switch on the back to turn the fan onn and off : O)

4 hours is weird. Humm must be class d or something right ?

scottb32198 · 16th November 2003, 04:47 PM

hmmm, well how would I go about putting a switch for the fan? Right now the fan is hooked up to this little plastic clip and plugged into a board. I'm not really familiar with the interior of receivers. But the fan is rated at 12V and i think .16mA or something like that. If you could tell me how to hook the fan up to a switch, that would be GREAT. I'm not sure about the amplifier class either, but yeah, I watched a 3 hour movie, then switched to another one, and it turned off like 45 minutes in. As for now, I put a freezerpack on a towel and set it on top and it will run flawlessly, it just looks stupid and the fan should be working anyway. Any help is GREATLY appreciated.

jleaman · 16th November 2003, 08:09 PM

Just watch that no water gets in.

I would look at the traces that leads from the fan connector to the psu part of that fan circuit. and see if you can rob some power from there.

if not Maybe find a 6v Ac wall adapter and put a plug and switch on the back of the receiver to power that fan..

li_gangyi · 17th November 2003, 12:48 AM

look under the reciever board...probe around for a a small 12V line...might be coming outta a regulator...and rob some power from there..if not...then you can try the transformer...which should have a winding for the electronics on the reciever...rectify the thing and use the power fromn there...either way..the original temperature sensor thingy is gone...

15th November 2003, 01:14 AM	#1
scottb32198 diyAudio Member Join Date: Nov 2003 Location: a	PLEASE HELP receiver overheat problem I bought a JVC rx-dv3 receiver and when I powered it up, it said "overheat". So, I replaced the fan, and it works for about 4 hours, but the new fan does not turn on and it will still overheat. How do I fix this? I dont want to take it to a service center because its 45$ and 2 weeks just for them to LOOK at it.

17th November 2003, 12:48 AM	#5
li_gangyi diyAudio Member Join Date: Jun 2003 Location: Woodlands Circle	look under the reciever board...probe around for a a small 12V line...might be coming outta a regulator...and rob some power from there..if not...then you can try the transformer...which should have a winding for the electronics on the reciever...rectify the thing and use the power fromn there...either way..the original temperature sensor thingy is gone... __________________ Kids in the back seat cause accidents...Accidents in the back seat cause kids...

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15th November 2003, 04:35 AM	#2
jleaman Banned Join Date: Apr 2002	I Would say that the Thermal Circuit is not working that or the Thermister is Dead. I would poke around in the amplifier and start searching for power starting from the fan PSu PART. that or put a switch on the back to turn the fan onn and off : O) 4 hours is weird. Humm must be class d or something right ?

16th November 2003, 04:47 PM	#3
scottb32198 diyAudio Member Join Date: Nov 2003 Location: a	hmmm, well how would I go about putting a switch for the fan? Right now the fan is hooked up to this little plastic clip and plugged into a board. I'm not really familiar with the interior of receivers. But the fan is rated at 12V and i think .16mA or something like that. If you could tell me how to hook the fan up to a switch, that would be GREAT. I'm not sure about the amplifier class either, but yeah, I watched a 3 hour movie, then switched to another one, and it turned off like 45 minutes in. As for now, I put a freezerpack on a towel and set it on top and it will run flawlessly, it just looks stupid and the fan should be working anyway. Any help is GREATLY appreciated.

16th November 2003, 08:09 PM	#4
jleaman Banned Join Date: Apr 2002	Just watch that no water gets in. I would look at the traces that leads from the fan connector to the psu part of that fan circuit. and see if you can rob some power from there. if not Maybe find a 6v Ac wall adapter and put a plug and switch on the back of the receiver to power that fan..

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