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Memphis 16-pr1x1000 help
Memphis 16-pr1x1000 help
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Old 24th May 2017, 01:40 AM   #1
rhempz01 is offline rhempz01  United States
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Default Memphis 16-pr1x1000 help

I recently obtained a Memphis 1000 and all the 3205 are violently blown, I have them to replace them, I just don't know what drives them. Or where they drivers are as they most definitely will need replacing. Any one know this board at all?
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Old 24th May 2017, 01:43 AM   #2
Perry Babin is offline Perry Babin  United States
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Q14 and Q15 look like the drivers.
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Old 24th May 2017, 02:49 AM   #3
rhempz01 is offline rhempz01  United States
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Think it all three of them?
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Old 24th May 2017, 02:57 AM   #4
Perry Babin is offline Perry Babin  United States
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Three?
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Old 24th May 2017, 12:49 PM   #5
rhempz01 is offline rhempz01  United States
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Will these replace the DY026. Im having difficulty finding the components. I looked though an old post a got a part number but still no luck. I found these

http://www.mouser.com/Search/Product...key771-BCP56HX
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Old 24th May 2017, 01:13 PM   #6
Perry Babin is offline Perry Babin  United States
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DY is the marking. KTA1661.

The 2SB1260 should be a good sub for a power supply driver.
http://www.mouser.com/ProductDetail/...DgSak7uGF5c%3d
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Old 24th May 2017, 01:17 PM   #7
rhempz01 is offline rhempz01  United States
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ok thanks perry.
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Old 24th May 2017, 01:39 PM   #8
rhempz01 is offline rhempz01  United States
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Full board for forum
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Old 30th May 2017, 11:20 PM   #9
rhempz01 is offline rhempz01  United States
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Is it just hem two Perry, replace all the 3205 and the drivers and b+ right away or should I limit and test something before hand. The PS fets were violently blown.
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Old 30th May 2017, 11:51 PM   #10
Perry Babin is offline Perry Babin  United States
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As far as I can tell, those are the only 2 driver transistors. They may have survived.

Never go straight to full current when initially testing if you have a limiter.

Before installing the FETs, I'd suggest checking the drive signal to the gate resistors.
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