LaserDisc Database
https://forum.lddb.com/

Elite 97/MLD7020 Power Board issue
https://forum.lddb.com/viewtopic.php?f=53&t=10823
Page 1 of 1

Author:  wildwall9 [ 17 Mar 2023, 15:32 ]
Post subject:  Elite 97/MLD7020 Power Board issue

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

Author:  wildwall9 [ 17 Mar 2023, 15:35 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

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

Attachments:
604C7365-7196-4B31-8571-11EE0636CFD4.jpeg
604C7365-7196-4B31-8571-11EE0636CFD4.jpeg [ 136.25 KiB | Viewed 682 times ]

Author:  wildwall9 [ 17 Mar 2023, 15:36 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

Next up is how it looks cleaned..

Attachments:
DEEDB676-638C-4FAF-9764-CE858ECDAEBD.jpeg
DEEDB676-638C-4FAF-9764-CE858ECDAEBD.jpeg [ 135.48 KiB | Viewed 682 times ]

Author:  wildwall9 [ 17 Mar 2023, 15:47 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

This is a bad pic from a 97 board on Ebay…cant tell what it is..

Attachments:
0306BE5F-5633-406D-8579-857393872C5A.png
0306BE5F-5633-406D-8579-857393872C5A.png [ 197.33 KiB | Viewed 681 times ]

Author:  wildwall9 [ 17 Mar 2023, 15:54 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

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.

Attachments:
F4C1500D-F802-467E-A17C-3CBACC60B3FF.jpeg
F4C1500D-F802-467E-A17C-3CBACC60B3FF.jpeg [ 82.61 KiB | Viewed 681 times ]

Author:  wildwall9 [ 17 Mar 2023, 16:14 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

From the Service manual ..
D23…HZS5.6NB2….In Greek right?…
If Im reading it correctly…its listed under Semiconductors?…. the Zener Diode symbol…

Author:  wildwall9 [ 17 Mar 2023, 20:07 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

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:

Attachments:
788FFE87-4700-4121-8039-25884654F64F.jpeg
788FFE87-4700-4121-8039-25884654F64F.jpeg [ 71.59 KiB | Viewed 666 times ]

Author:  rein-o [ 18 Mar 2023, 00:14 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

try mouser.
Good luck

Author:  wildwall9 [ 18 Mar 2023, 04:47 ]
Post subject:  Re: Elite 97/MLD7020 Power Board issue

rein-o wrote:
try mouser.
Good luck

Tried…No Joy
TJTS

Page 1 of 1 All times are UTC [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/