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 Post subject: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 15:32 
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Just when I thought it was safe to go outside again……lol…..another power board issue…this one is a Mcintosh aka Elite97 problem…I found a mess on the underneath of the board..someone tried to add a jumper where a Diode belonged and generally made a mess..its also missing material to solder to …I think I can handle the jumper thing…3 of them?…the question I have is what goes in the holes ..what Diode belongs..hope the pics explain it better


Last edited by wildwall9 on 17 Mar 2023, 19:20, edited 2 times in total.
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 15:35 
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First up…this is how it looked before I cleaned it…notice the small red circle is where the capacitor just rattles around in the hole,has zero contact for solder..the larger circle is where the diode is missing..and a jumper wire installed


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604C7365-7196-4B31-8571-11EE0636CFD4.jpeg
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Last edited by wildwall9 on 17 Mar 2023, 19:19, edited 3 times in total.
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 15:36 
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Next up is how it looks cleaned..


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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 15:47 
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This is a bad pic from a 97 board on Ebay…cant tell what it is..


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0306BE5F-5633-406D-8579-857393872C5A.png
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 15:54 
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So I think I can handle the jumpers needed..any advice is more than welcome…the burning question is?../what is the value/rating of the Diode so I can get one and maybe with the jumper fixes ,this beastie will fire up…its a filthy mess…confidence aint high..butt ya never know.


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F4C1500D-F802-467E-A17C-3CBACC60B3FF.jpeg
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Last edited by wildwall9 on 17 Mar 2023, 19:18, edited 1 time in total.
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 16:14 
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From the Service manual ..
D23…HZS5.6NB2….In Greek right?…
If Im reading it correctly…its listed under Semiconductors?…. the Zener Diode symbol…
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 17 Mar 2023, 20:07 
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I went to Digi-Key and did a search ..the closest I found had this #.. HZS5.6NB2TD…..I would buy it butt…ya gotta buy 1723…$329….
So I pulled two that visually look the same from a cld503 board…If I dont hear otherwise…I will try one in a few days…..cant be worse than just a wire that was used before….or can it?
HELP!…Save the 7020 from a knucklehead….. :crazy:


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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 18 Mar 2023, 00:14 
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try mouser.
Good luck
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 Post subject: Re: Elite 97/MLD7020 Power Board issue
PostPosted: 18 Mar 2023, 04:47 
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rein-o wrote:
try mouser.
Good luck

Tried…No Joy
TJTS
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