Pioneer vsx 824 TEMP error

nonoise
New Member

Posts: 14

Pioneer vsx 824 TEMP error Jul 12, 2017 19:27:58 GMT -5

Quote

Post by nonoise on Jul 12, 2017 19:27:58 GMT -5

Hi all,

found this forum on google when i searched for radi_thermal

Now my experience with electronics is about 40%

The amplifier is a pioneer Vsx 824-k. The error is a Temp error. it starts then i turn up the volume till 40 after that it go's to 0 in passes of 1-3 and powers of.
I checked the error log and this is what i get:

temp 2:255
over :000
Temp 3:000
DC :000
Temp 1:000
V+SV:000

Also the HDMI blinks on the front panel.

checked the amp board in circuit, en it looks fine. tested a couple of output transistors, also fine.

mastertech Global Moderator Posts: 3,538	Pioneer vsx 824 TEMP error Jul 12, 2017 21:28:25 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Jul 12, 2017 21:28:25 GMT -5 First I would clear out those over temps. Then I would do master reset. See if it still shuts down and the temp errors return. If they do i would then check and if necessary adjust the idle current for all channels.
	MT

nonoise
New Member

Posts: 14

Pioneer vsx 824 TEMP error Jul 13, 2017 10:05:56 GMT -5

Quote

Post by nonoise on Jul 13, 2017 10:05:56 GMT -5

Thanks, it worked. what i did before was only factory reset.
testing it through an rca input.
what i did was resoldered some bad solder points on the amp board, maybe that did it.

testing it in 2.1 channel.

adjusting the idle current ? as in the pot meters on the amp board ?

where is temp 2 located ? and what could be the cause of this failure ?

edit* it is still working, thanks!

Last Edit: Jul 13, 2017 12:35:18 GMT -5 by nonoise

dobrykamil
Full Member

Posts: 116

Pioneer vsx 824 TEMP error Jul 21, 2017 16:04:04 GMT -5 via Tapatalk

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Post by dobrykamil on Jul 21, 2017 16:04:04 GMT -5

VSX-421 same issue.Remove amp board and check all emitter resistors of the final transistors (0.47 Ohm, connected in parallel) Start with front channels.If you find faulty resistors, say of the front left channel, also check Base resistors (100 Ohm) of the finals.In my case, I've also replaced them too, I believe they're 2sb1560 and 2sd2390.More likely you need to do the same because emitter resistors don't get faulty just like that

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Post by nonoise on Jul 12, 2017 19:27:58 GMT -5

Post by mastertech on Jul 12, 2017 21:28:25 GMT -5

Post by nonoise on Jul 13, 2017 10:05:56 GMT -5

Post by dobrykamil on Jul 21, 2017 16:04:04 GMT -5

Shoutbox