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"ODEP" crown macrotech

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EmPro View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote EmPro Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2022 at 10:10am
Fuse resistors in MT-s,so easy to spot:


Edited by EmPro - 21 June 2022 at 10:17am
EmPro Audio
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 3:26am
kedwardsleisure,

Thanks for comments! Do you have a pic of the location of these diodes?

opacheco


Edited by opacheco - 22 June 2022 at 3:47am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 3:32am
Originally posted by EmPro EmPro wrote:

You can test 555 just for normal shortages acording to internal schematic,and with special circuits to see if operates,so no point in that,you can buy 3 with one pound,and to be more easy for you just fit a DIP8 socket to be easy in the future,as i'm sure crown didn't fit it on a socket. Cheers

EmPro
you are right! I will change it(and I will install socket too).

It is a shame, crown doesn't have point test of static DC voltage (without signal input) table for critical sectiosn of its amplifiers, this will be fantastic in order to find the posible damage part.

Thanks a lot
opacheco.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 3:42am
Originally posted by EmPro EmPro wrote:

Fuse resistors in MT-s,so easy to spot:

I can’t download the pic (although I can still see the parts that you indicate to me).

Thanks 
opacheco


Edited by opacheco - 22 June 2022 at 5:22am
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Post Options Post Options   Thanks (1) Thanks(1)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 8:48am
Quote Do you have a pic of the location of these diodes


No, but you can't miss them, 2 pairs of 6A diodes, a pair each for the low/high side sections. They're at either end of the output PCB.


Edited by kedwardsleisure - 22 June 2022 at 8:48am
Kevin

North Staffordshire

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Post Options Post Options   Thanks (0) Thanks(0)   Quote EmPro Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 10:28am
Flywheel diodes (MT2400 board) but you have same,as same design:


Edited by EmPro - 22 June 2022 at 10:30am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BJtheDJ Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 2:43pm
Originally posted by opacheco opacheco wrote:

Originally posted by EmPro EmPro wrote:

Fuse resistors in MT-s,so easy to spot:
I can’t download the pic (although I can still see the parts that you indicate to me).
Thanks 
opacheco

If you right-click on the picture you'll be given several options
(in FireFox anyway, most likely with other web browsers too),
amongst them:
'open image in new tab' where you'll be able to zoom in and out
using the Ctrl button and your mouse wheel
and
'Save Image'



Edited by BJtheDJ - 22 June 2022 at 2:44pm
If your vaccinations were mandatory and nobody in your class had measles,
then you know that you're not a Millenial kid.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 3:57pm
Let me to tray! and I let you know.

Thanks a lot 
opacheco 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 4:04pm
Originally posted by kedwardsleisure kedwardsleisure wrote:

Quote Do you have a pic of the location of these diodes


No, but you can't miss them, 2 pairs of 6A diodes, a pair each for the low/high side sections. They're at either end of the output PCB.

Ok!

Thanks
opacheco
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 4:05pm
Originally posted by EmPro EmPro wrote:

Flywheel diodes (MT2400 board) but you have same,as same design:

GREAT!
Thanks for your datailed pics!
opacheco
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Post Options Post Options   Thanks (0) Thanks(0)   Quote EmPro Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 4:12pm
No problem mate,let us know how's going further with the repairings Smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote opacheco Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2022 at 6:51pm
Originally posted by EmPro EmPro wrote:

No problem mate,let us know how's going further with the repairings Smile

Yes for sure!!
Thanks to all
opacheco
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