Here I got more info for a 578 amplifier about Fake MJ15024 company ON ( not Motorola) from China. I have blowing up my amplifier with fake MJ15025. I have opened one fake and good one. Its a big difference between them. I have now ordered some good ones in a local store. I think its al money worth. I have also some good equivalents for IC201 Opamp. I have seen guys who are using the OPA627 from Burr and Brown.
Wim
Wim
I have found that MJ15024 gives a big problem sell on Ebay. Especially from China. My 578 was blowing up by only replace 2 MJ15024. I found out to open it to see some a mayor difference between a original. See pictures.
I now have place a order in a local store for good ones.
For IC201 I have found out on another forum that OPA627 is a good replacement. Same pin and same voltage.
Wim
I now have place a order in a local store for good ones.
For IC201 I have found out on another forum that OPA627 is a good replacement. Same pin and same voltage.
Wim
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Wim, try attaching your pictures directly 🙂
To add a photo, files or non standard files.
First click "go advanced" in the box below the "quick reply" message box. Doesn't matter if you decide half way through a message to do that, it carries it foward.
Then click "Manage attachements". Maximise the new Window so that you can see all the text.
Click browse in the first box at the top and find your picture. Repeat for any more pictures.
Click upload... a message appears "uploading"
When complete the files will show as being attached. Now click the small text that says "close this window"
The pictures should now be attached and when you submit your post they will appear.
Make sure your pics aren't too big, a couple of 100k is plenty, and many members object when they are massive and it alters the margins
It tells you in the attachments window what max sizes are allowed.
If you want to attach a file that has a non standard format for example excel, circuit simulation etc then try putting the files in a zipped folder and attaching that. "
To add a photo, files or non standard files.
First click "go advanced" in the box below the "quick reply" message box. Doesn't matter if you decide half way through a message to do that, it carries it foward.
Then click "Manage attachements". Maximise the new Window so that you can see all the text.
Click browse in the first box at the top and find your picture. Repeat for any more pictures.
Click upload... a message appears "uploading"
When complete the files will show as being attached. Now click the small text that says "close this window"
The pictures should now be attached and when you submit your post they will appear.
Make sure your pics aren't too big, a couple of 100k is plenty, and many members object when they are massive and it alters the margins
It tells you in the attachments window what max sizes are allowed.
If you want to attach a file that has a non standard format for example excel, circuit simulation etc then try putting the files in a zipped folder and attaching that. "
Hi Mooly,
I will do. I have found out that jpg must be JPG.
Thanks
Wim
I will do. I have found out that jpg must be JPG.
Thanks
Wim
An externally hosted image should be here but it was not working when we last tested it.
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This one should be easy ...only thing you need to do is look at old marantz schematics and solution will come out crystal clear
Kind regards
sakis
Kind regards
sakis
Wim Schilperoort, you posted the same thing 6 times. Please post just once and wait for your post to appear after it has been approved.I have deleted the duplicates.
Thanks for placing my picture.
The right one is the real one from Toshiba.
Left is a fake one from China call MJ15024 from ON.
Wim
The right one is the real one from Toshiba.
Left is a fake one from China call MJ15024 from ON.
Wim
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