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stereo.mad - 2013-02-24 05:46

iv heard that the sharp 8989 has the same amp as the 777 etc, can anyone confirm that at all,if so dose it fit as a straight replacement for one of the amps in a 777?

metad - 2013-02-24 08:54

Nope, 8989 has different amp chip.

The short list of the most common models with HA-1392 as the amp chip:

GF-500, 530, 515, 525, 555, 666, HITACHI TRK-8800.

But I think it's possible to find just an IC.

Hope this helps.

stereo.mad - 2013-02-24 09:44

Hmm thanks for you input metad,sound all a bit complicated to me although I do have some of those boxes you mentioned to sacrifice,maybe I just need to give it to someone who has the skills to do it

davebush - 2013-02-24 10:27

Lee....check this.....i bought one a while ago from this seller

http://www.ebay.co.uk/itm/HA13...;hash=item25789f222a

stereo.mad - 2013-02-24 11:25

Cheers Dave, but what do I do with it??? Help!!!

davebush - 2013-02-24 11:31

de-solder the old one and solder in the new one.....easy

Are you sure its this chip thats gone

blaster - 2013-02-24 12:51

i agree with dave...make sure its the amp chip thats needs to be replaced....the sound went out on mine once...and that's what i thought....i replaced it...and it didn't help....it was another IC somewhere else that needed replacing...